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  • 301.
    Chatzipetrou, Panagiota
    et al.
    Software Research Engineering Lab (SERL), Blekinge Institute of Technology, Karlskrona, Sweden.
    Alégroth, Emil
    Software Research Engineering Lab (SERL), Blekinge Institute of Technology, Karlskrona, Sweden.
    Papatheocharous, Efi
    RISE SICS AB, Lund, Sweden.
    Borg, Markus
    RISE SICS AB, Lund, Sweden.
    Gorschek, Tony
    Software Research Engineering Lab (SERL), Blekinge Institute of Technology, Karlskrona, Sweden.
    Wnuk, Krzysztof
    Software Research Engineering Lab (SERL), Blekinge Institute of Technology, Karlskrona, Sweden.
    Component selection in Software Engineering: Which attributes are the most important in the decision process?2018Inngår i: 44th Euromicro Conference on Software Engineering and Advanced Applications, SEAA 2018: Proceedings / [ed] Bures, T; Angelis, L, IEEE conference proceedings , 2018, s. 198-205Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Component-based software engineering is a common approach to develop and evolve contemporary software systems where different component sourcing options are available: 1)Software developed internally (in-house), 2)Software developed outsourced, 3)Commercial of the shelf software, and 4) Open Source Software.

    However, there is little available research on what attributes of a component are the most important ones when selecting new components. The object of the present study is to investigate what matters the most to industry practitioners during component selection. We conducted a cross-domain anonymous survey with industry practitioners involved in component selection. First, the practitioners selected the most important attributes from a list. Next, they prioritized their selection using the Hundred-Dollar ($100) test. We analyzed the results using Compositional Data Analysis. The descriptive results showed that Cost was clearly considered the most important attribute during the component selection. Other important attributes for the practitioners were: Support of the component, Longevity prediction, and Level of off-the-shelf fit to product. Next, an exploratory analysis was conducted based on the practitioners' inherent characteristics. Nonparametric tests and biplots were used. It seems that smaller organizations and more immature products focus on different attributes than bigger organizations and mature products which focus more on Cost.

  • 302.
    Christensen, P. W.
    et al.
    Department of Mechanical Engineering, Linköping University, Linköping, Sweden.
    Klarbring, Anders
    Department of Mechanical Engineering, Linköping University, Linköping, Sweden.
    Pang, Jong Shi
    Department of Mathematical Sciences, The Johns Hopkins University, Baltimore, MD, USA.
    Strömberg, Niclas
    Department of Mechanical Engineering, Linköping University, Linköping, Sweden.
    Formulation and comparison of algorithms for frictional contact problems1998Inngår i: International Journal for Numerical Methods in Engineering, ISSN 0029-5981, E-ISSN 1097-0207, Vol. 42, nr 1, s. 145-173Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper presents two algorithms for solving the discrete, quasi-static, small-displacement, linear elastic, contact problem with Coulomb friction. The algorithms are adoptions of a Newton method for solving B-differentiable equations and an interior point method for solving smooth, constrained equations. For the application of the former method, the contact problem is formulated as a system of B-differentiable equations involving the projection operator onto sets with simple structure; for the application of the latter method, the contact problem is formulated as a system of smooth equations involving complementarity conditions and with the non-negativity of variables treated as constraints. The two algorithms are numerically tested for two-dimensional problems containing up to 100 contact nodes and up to 100 time increments. Results show that at the present stage of development, the Newton method is superior both in robustness and speed. Additional comparison is made with a commercial finite element code.

  • 303.
    Christensson, Johan
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Gustafsson, Ludwig
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Utveckling av geometrisk reverse engineering med 3D-skanningsutrustning2015Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [sv]

    Under de senaste tio åren har 3D-skanningsteknologi utvecklats avsevärt [1]. Nutida lösningar kan återskapa fysiska objekt till digital form på några få minuter med en precision upp emot 40 µm. [1]. Detta gör 3D-skannern till en effektiv och formsäker lösning för applikationsområden som; Kvalitetssäkring, Eftermarknadsutveckling, Protestillverkning samt Reverse engineering.

    Reverse engineering är ett konstruktionssätt som använder en så kallat "Top-down" metodik. Tekniken bygger på att; från en färdig produkt gå ned i mindre beståndsdelar tills förståelse om hur produkten fungerar uppnås.

    Geometrisk reverse engineering utgår från samma grundstenar som reverse engineering, men tillämpningen handlar istället om att få ett dugligt CAD-underlag av ett fysiskt objekt, som tidigare saknats.

    I fallet geometrisk reverse engineering och 3D-skanning behövs det, för Volvos modellkonstruktionsavdelning, en fullt funktionell modell av det fysiska objektet, där mått, tvärsnitt och kurvor som behöver ändras för gjutoptimering, kan ändras på ett enkelt sätt. Samtidigt behöver modellen vara toleranssäker och ha en hög ytjämnhet.

    Denna rapport fokuserar på att utveckla en arbetsmetod för Volvo GTO som möjliggör en tidsoptimerad process från ett fysiskt objekt till en digital spegling av nämnt objekt, skräddarsytt för användningsområdet Geometrisk Reverse engineering.

  • 304.
    Cicek, Mehmet
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Universell Hjuladapter2012Independent thesis Basic level (university diploma), 10 poäng / 15 hpOppgave
    Abstract [sv]

    Examensarbetet har genomförts i samverkan med JOSAM i Örebro som är ett ledande företag inom riktning och hjulinställningar på kommersiella fordon. Företaget grundades 1972 och har tillverkat utrustningar i 40 år.

     

    Examensarbetet handlar om hjuladapterns problem att fästas på aluminiumfälgar.

     

    Resultatet blev en hjuladapter som fungerar både för aluminium- och stålfälgar.  Den har möjligheten att anpassa sig för fälgar med diametern från 15 till 24 tum (380 till 610 mm).

  • 305.
    Cielniak, Grzegorz
    et al.
    Department of Computing and Informatics, University of Lincoln, Lincoln, United Kingdom.
    Duckett, Tom
    Department of Computing and Informatics, University of Lincoln, Lincoln, United Kingdom.
    Lilienthal, Achim J.
    Örebro universitet, Institutionen för teknik.
    Improved data association and occlusion handling for vision-based people tracking by mobile robots2007Inngår i: 2007 IEEE/RSJ international conference on intelligent robots and systems, New York, NY, USA: IEEE, 2007, s. 3436-3441Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper presents an approach for tracking multiple persons using a combination of colour and thermal vision sensors on a mobile robot. First, an adaptive colour model is incorporated into the measurement model of the tracker. Second, a new approach for detecting occlusions is introduced, using a machine learning classifier for pairwise comparison of persons (classifying which one is in front of the other). Third, explicit occlusion handling is then incorporated into the tracker.

  • 306.
    Cirillo, Marcello
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Planning in inhabited environments: human-aware task planning and activity recognition2011Inngår i: Künstliche Intelligenz, ISSN 0933-1875, E-ISSN 1610-1987, Vol. 25, nr 4, s. 355-358Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Our work addresses issues related to the cohabitation of service robots and people in unstructured environments. We propose new planning techniques to empower robot means-end reasoning with the capability of taking into account human intentions and preferences. We also address the problem of human activity recognition in instrumented environments. We employ a constraint-based approach to realize a continuous inference process to attach a meaning to sensor traces as detected by sensors distributed in the environment.

  • 307.
    Cirillo, Marcello
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Planning in Inhabited Environments: Human-Aware Task Planning and Activity Recognition2010Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    Promised some decades ago by researchers in artificial intelligence and robotics as an imminent breakthrough in our everyday lives, a robotic assistant that could work with us in our home and our workplace is a dream still far from being fulfilled. The work presented in this thesis aims at bringing this future vision a little closer to realization. Here, we start from the assumption that an efficient robotic helper should not impose constraints on users' activities, but rather perform its tasks unobtrusively to fulfill its goals and to facilitate people in achieving their objectives.  Also, the helper should be able to consider the outcome of possible future actions by the human users, to assess how those would affect the environment with respect to the agent's objectives, and to predict when its support will be needed. In this thesis we address two highly interconnected problems that are essential for the cohabitation of people and service robots: robot task planning and human activity recognition. First, we present human-aware planning, that is, our approach to robot high-level symbolic reasoning for plan generation. Human-aware planning can be applied in situations where there is a controllable agent, the robot, whose actions we can plan, and one or more uncontrollable agents, the human users, whose future actions we can only try to predict. In our approach, therefore, the knowledge of the users' current and future activities is an important prerequisite. We define human-aware as a new type of planning problem, we formalize the extensions needed by a classical planner to solve such a problem, and we present the implementation of a planner that satisfies all identified requirements. In this thesis we explore also a second issue, which is a prerequisite to the first one: human activity monitoring in intelligent environments. We adopt a knowledge driven approach to activity recognition, whereby a constraint-based domain description is used to correlate sensor readings to human activities. We validate our solutions to both human-aware planning and activity recognition both theoretically and experimentally, describing a number of explanatory examples and test runs in a real environment.

  • 308.
    Cirillo, Marcello
    et al.
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Karlsson, Lars
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Saffiotti, Alessandro
    Örebro universitet, Akademin för naturvetenskap och teknik.
    A framework for human-aware robot planning2008Inngår i: Tenth Scandinavian conference on artificial intelligence / [ed] A. Holst, P. Kreuger, P. Funk, Amsterdam: IOS press , 2008, s. 52-59Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Robots that share their workspace with humans, like household or service robots, need to take into account the presence of humans when planning their actions. In this paper, we present a framework for human-aware planning in which we consider three kinds of human-robot interaction. We focus in particular on the core module of the framework, a human-aware planner that generates a sequence of actions for a robot, taking into account the status of the environment, the goals of the robot and the forecasted plan of the human. We present a first realization of this planner, together with two simple experiments that demonstrate the feasibility of our approach.

  • 309.
    Cirillo, Marcello
    et al.
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Karlsson, Lars
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Saffiotti, Alessandro
    Örebro universitet, Akademin för naturvetenskap och teknik.
    A human-aware robot task planner2009Inngår i: Proceedings of the 19th international conference on automated planning and scheduling, ICAPS 2009 / [ed] Alfonso Gerevini, Adele Howe, Amedeo Cesta, Ioannis Refanidis, Menlo Park: AAAI press , 2009, s. 58-65Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The growing presence of household robots in inhabited environments arises the need for new robot task planning techniques. These techniques should take into consideration not only the actions that the robot can perform or unexpected external events, but also the actions performed by a human sharing the same environment, in order to improve the cohabitation of the two agents, e.g., by avoiding undesired situations for the human. In this paper, we present a human-aware planner able to address this problem. This planner supports alternative hypotheses of the human plan, temporal duration for the actions of both the robot and the human, constraints on the interaction between robot and human, partial goal achievement and, most importantly, the possibility to use observations of human actions in the policy generated for the robot. The planner has been tested as a standalone component and in conjunction with our framework for human-robot interaction in a real environment.

  • 310.
    Cirillo, Marcello
    et al.
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Karlsson, Lars
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Saffiotti, Alessandro
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Human-aware task planning for mobile robots2009Inngår i: Proceedings of the 5th international conference on advanced robotics, ICAR 2009, New York: IEEE conference proceedings, 2009, s. 172-178Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Robots that share their workspace with people, like household or service robots, need to take into account the presence of humans when planning their actions. In this paper, we present a framework for human-aware planning that would make the robots capable of performing their tasks without interfering with the user in his every day life. We focus in particular on the core module of the framework, a humanaware planner that generates a sequence of actions for a robot, taking into account the state of the environment and the goals of the robot, together with a set of forecasted possible plans of the human. We describe the planner and its relations to other system components like a plan recognizer, and present a series of experiments performed with a household robot in a small apartment.

  • 311.
    Cirillo, Marcello
    et al.
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Lanzellotto, Federica
    Roma 3 University, Rome, Italy.
    Pecora, Federico
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Saffiotti, Alessandro
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Monitoring domestic activities with temporal constraints and components2009Inngår i: Intelligent environments 2009 / [ed] V. Callaghan, A. Kameas, A. Reyes, D. Royo, M. Weber, Amsterdam: IOS Press, 2009, s. 117-124Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Intelligent environments are increasingly rich in ubiquitous sensing capabilities that can be leveraged to know which actions a user is engaged in at any given moment in time. The ability of an intelligent environment to recognize a high-level plan of activities performed by the user in a smart home would allow to construct proactive services, such as reminding, forecasting and providing timely physical support. This article proposes an approach to human activity recognition based on temporal planning. The approach leverages on one hand the ubiquitous sensors provided by the PEIS-Home, a sensor-rich intelligent environment, and, on the other hand, the temporal representation and reasoning capabilities of OMPS, a constraint-based temporal planning and scheduling framework.

  • 312.
    Cirillo, Marcello
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Pecora, Federico
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Andreasson, Henrik
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Uras, Tansel
    Department of Computer Science, University of Southern California, Los Angeles, USA.
    Koenig, Sven
    Department of Computer Science, University of Southern California, Los Angeles, USA.
    Integrated Motion Planning and Coordination for Industrial Vehicles2014Inngår i: Proceedings of the 24th International Conference on Automated Planning and Scheduling, AAAI Press, 2014Konferansepaper (Fagfellevurdert)
    Abstract [en]

    A growing interest in the industrial sector for autonomous ground vehicles has prompted significant investment in fleet management systems. Such systems need to accommodate on-line externally imposed temporal and spatial requirements, and to adhere to them even in the presence of contingencies. Moreover, a fleet management system should ensure correctness, i.e., refuse to commit to requirements that cannot be satisfied. We present an approach to obtain sets of alternative execution patterns (called trajectory envelopes) which provide these guarantees. The approach relies on a constraint-based representation shared among multiple solvers, each of which progressively refines trajectory envelopes following a least commitment principle.

  • 313.
    Cirillo, Marcello
    et al.
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Pecora, Federico
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Saffiotti, Alessandro
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Proactive assistance in ecologies of physically embedded intelligent systems: a constraint-based approach2011Inngår i: Handbook of research on ambient intelligence and smart environments: trends and perspectives / [ed] Nak-Young Chong, Fulvio Mastrogiovanni, IGI Global, 2011, s. 534-557Kapittel i bok, del av antologi (Fagfellevurdert)
    Abstract [en]

    The main goal of this Chapter is to introduce SAM, an integrated architecture for concurrent activity recognition, planning and execution. SAM provides a general framework to define how an intelligent environment can assess contextual information from sensory data. The architecture builds upon a temporal reasoning framework operating in closed-loop between physical sensing and actuation components in a smart environments. The capabilities of the system as well as possible examples of its use are discussed in the context of the PEIS-Home, a smart environment integrated with robotic components.

  • 314.
    Cirillo, Marcello
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Uras, Tansel
    Department of Computer Science, University of Southern California, Los Angeles, USA.
    Koenig, Sven
    Department of Computer Science, University of Southern California, Los Angeles, USA.
    A lattice-based approach to multi-robot motion planning for non-holonomic vehicles2014Inngår i: Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems, 2014, s. 232-239Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Coordinating fleets of autonomous, non-holonomic vehicles is paramount to many industrial applications. While there exists solutions to efficiently calculate trajectories for individual vehicles, an effective methodology to coordinate their motions and to avoid deadlocks is still missing. Decoupled approaches, where motions are calculated independently for each vehicle and then centrally coordinated for execution, have the means to identify deadlocks, but not to solve all of them. We present a novel approach that overcomes this limitation and that can be used to complement the deficiencies of decoupled solutions with centralized coordination. Here, we formally define an extension of the framework of lattice-based motion planning to multi-robot systems and we validate it experimentally. Our approach can jointly plan for multiple vehicles and it generates kinematically feasible and deadlock-free motions.

  • 315.
    Claesson, Daniel
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Sjöstrand, Jonas
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Automatisering av svetsprocessen på valstråd2017Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [sv]

    FNsteel i Linköping tillverkar spännlina, en produkt som används av prefab-industrin för tillverkning av förspända betongelement t.ex. håldäck, balkar, bjälklag och järnvägsslipers. Vid tillverkningen drar man valstråd i tråddragningsmaskiner som reducerar valstrådens tvärsnittsarea och ökar längden samtidigt som tråden får en annan metallstruktur. Den dragna tråden slås sedan till tre- eller sjutrådig spännlina. Vid tillverkningen svetsar operatörer ihop valstrådar och hanteringen av valstråden är idag manuell. Företaget vill i framtiden automatisera sin svetsprocess vid skarvning utav valstrådar då det är ett tungt och ensidigt arbete för operatörerna samt för att kunna öka produktiviteten. Examensarbetet är ett produktutvecklingsprojekt som innehåller en analys utav tillverkningen idag och förslag på standardisering för att kunna automatisera samt konstruktionsunderlag för automatisering av vissa moment i processen.

    Under arbetets gång har det identifierats att processen inte är mogen för att automatiseras utan att företaget först behöver ta fram en standard för hur processen ska se ut för att kunna möjliggöra en automatisering av hela svetsprocessen. Ett antal moment i processen kräver fortsatt arbete för att möjliggöra automatiseringen av processen, samtidigt som det redan idag är möjligt att automatisera vissa delar av processen då dessa enkelt kan standardiseras. Konceptlösningen som tagits fram består av pneumatiska cylindrar, konstruerade trådklämmor och hydraulisk trådklippare.

  • 316.
    Clefjord Ljungberg, Hanna
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Brunzell, Malin
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Analys av inköpsbeteende av underleverantörer2012Independent thesis Basic level (university diploma), 10 poäng / 15 hpOppgave
  • 317.
    Cock, C.
    et al.
    Gastroenterology & Hepatology, Flinders Medical Centre, Bedford Park SA, Australia; School of Medicine, Flinders University of South Australia, Adelaide, Australia.
    Doeltgen, S. H.
    Speech Pathology, School of Health Sciences, Flinders University of South Australia, Adelaide, Australia.
    Omari, T.
    School of Medicine, Flinders University of South Australia, Adelaide, Australia; Human Physiology, Medical Science and Technology, Flinders University of South Australia, Adelaide, Australia.
    Savilampi, Johanna
    Örebro universitet, Institutionen för medicinska vetenskaper. Region Örebro län. Department of Anaesthesiology and Intensive Care, Örebro University Hospital, Örebro, Sweden.
    Effects of remifentanil on esophageal and esophagogastric junction (EGJ) bolus transit in healthy volunteers using novel pressure-flow analysis2018Inngår i: Neurogastroenterology and Motility, ISSN 1350-1925, E-ISSN 1365-2982, Vol. 30, nr 2, artikkel-id e13191Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Remifentanil is associated with subjective dysphagia and an objective increase in aspiration risk. Studies of opioid effects have shown decreased lower esophageal sphincter relaxation. We assessed bolus transit through the esophagus and esophagogastric junction (EGJ) during remifentanil administration using objective pressure-flow analysis.

    METHODS: Data from 11 healthy young participants (23±3 years, 7 M) were assessed for bolus flow through the esophagus and EGJ using high-resolution impedance manometry (Manoscan™, Sierra Scientific Instruments, Inc., LES Angeles, CA, USA) with 36 pressure and 18 impedance segments. Data were analyzed for esophageal pressure topography and pressure-flow analysis using custom Matlab analyses (Mathworks, Natick, USA). Paired t tests were performed with a P-value of < .05 regarded as significant.

    KEY RESULTS: Duration of bolus flow through (remifentanil/R 3.0±0.3 vs baseline/B 5.0 ± 0.4 seconds; P < .001) and presence at the EGJ (R 5.1 ± 0.5 vs B 7.1 ± 0.5 seconds; P = .001) both decreased during remifentanil administration. Distal latency (R 5.2 ± 0.4 vs B 7.5 ± 0.2 seconds; P < .001) and distal esophageal distension-contraction latency (R 3.5 ± 0.1 vs B 4.7 ± 0.2 seconds; P < .001) were both reduced. Intrabolus pressures were increased in both the proximal (R 5.3 ± 0.9 vs B 2.6 ± 1.3 mm Hg; P = .01) and distal esophagus (R 8.6 ± 1.7 vs B 3.1 ± 0.8 mm Hg; P = .001). There was no evidence of increased esophageal bolus residue.

    CONCLUSIONS AND INFERENCES: Remifentanil-induced effects were different for proximal and distal esophagus, with a reduced time for trans-sphincteric bolus flow at the EGJ, suggestive of central and peripheral μ-opioid agonism. There were no functional consequences in healthy subjects.

  • 318.
    Coradeschi, Silvia
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Cortellessa, GabriellaInstitute of Cognitive Science and Technology, National Research Council of Italy, Rome, Italy.Kristoffersson, AnnicaÖrebro universitet, Institutionen för naturvetenskap och teknik.Loutfi, AmyÖrebro universitet, Institutionen för naturvetenskap och teknik.
    Proceedings of the Ro-man 2012 Workshop on Social Robotics Telepresence2012Konferanseproceedings (Annet vitenskapelig)
  • 319.
    Coradeschi, Silvia
    et al.
    School of Science and Technology, Örebro University, Örebro, Sweden.
    Cortellessa, GabriellaCNR - National Research Council of Italy, Istituto di Scienze e Tecnologie della Cognizione, Rome, Italy.Kristoffersson, AnnicaÖrebro universitet, Institutionen för naturvetenskap och teknik.Loutfi, AmyÖrebro universitet, Institutionen för naturvetenskap och teknik.Severinson Eklundh, KerstinCI Group, CSC, KTH Royal Institute of Technology, Stockholm, Sweden.
    Proceedings of the 2011 HRI Workshop on Social Robotic Telepresence2011Konferanseproceedings (Annet vitenskapelig)
  • 320.
    Coradeschi, Silvia
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Kristoffersson, Annica
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Loutfi, Amy
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Von Rump, Stephen
    Cesta, Amedeo
    Cortellessa, Gabriella
    Gonzalez, Javier
    Towards a methodology for longitudinal evaluation of social robotic telepresence for elderly2011Inngår i: 1st Workshop on Social Robotic Telepresence at HRI 2011, 2011Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper describes a methodology for performing longitudinal evaluations when a social robotic telepresence system is deployed in realistic environments. This work is the core of an Ambient Assisted Living Project called ExCITE, Enabling Social Interaction Through Telepresence. The ExCITE project is geared towards an elderly audience and has as aim to increase social interaction among elderly, their family and healthcare services by using robotic telepresence. The robotic system used in the project is called the Giraff robot and over a three year period, prototypes of this platform are deployed at a number of test-sites in different European countries where user feedback is collected and fedback into the refinement of the prototype. In this paper, we discuss the methodology of ExCITE in particular relation to other methodologies for longitudinal evaluation. The paper also provides a discussion of the possible pitfalls and risks in performing longitudinal studies of this nature particularly as they relate to social robotic telepresence technologies.

  • 321.
    Coradeschi, Silvia
    et al.
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Loutfi, Amy
    Örebro universitet, Akademin för naturvetenskap och teknik.
    A review of Past and Future Trends in Perceptual Anchoring2008Inngår i: Tools in Artificial Intelligence, Vienna: I-Tech Eduacation and Publishing , 2008Kapittel i bok, del av antologi (Annet vitenskapelig)
  • 322.
    Coradeschi, Silvia
    et al.
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Loutfi, Amy
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Kristoffersson, Annica
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Cortellessa, Gabriella
    Consiglio Nazionale delle Ricerche (CNR), Rome, Italy; Istituto di Scienze e Tecnologie della Cognizione (ISTC-CNR), Rome, Italy.
    Severinson Eklundh, Kerstin
    KTH, Royal Institute of Technology, Stockholm, Sweden.
    Social robotic telepresence2011Inngår i: the 6th ACM/IEEE International Conference on Human-Robot Interaction (HRI 2011).HRI, ACM Digital Library , 2011, s. 5-6Konferansepaper (Fagfellevurdert)
  • 323. Cortellessa, Gabriella
    et al.
    Loutfi, Amy
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Pecora, Federico
    Örebro universitet, Akademin för naturvetenskap och teknik.
    An on-going evaluation of domestic robots2008Inngår i: Robotic helpers: user interaction, interfaces and companions in assistive and therapy robotics, 2008, s. 87-91Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In this position paper we describe an on-going effort to provide an in-depth and cross-cultural evaluation of how elderly users perceive robotic systems for domestic cognitive support. Our work is grounded on two implemented smarthome prototypes, namely the RoboCare Smart Home developed in Italy, and the PEIS Home developed in Sweden. The former project has provided a testbed for an a-posteriori evaluation of smart home technology with Italian user groups. The presence in Sweden of the PEIS Home, a system which shares numerous commonalities with the RoboCare Smart Home, gives us the opportunity to extend these results by (1) providing a cross-cultural perspective on the perception of smart home technology, and (2) lay the foundations for a live, Wizard of Oz based evaluation within the PEIS Home.

     

  • 324. Cortellessa, Gabriella
    et al.
    Scopelliti, Massimiliano
    Tiberio, Lorenza
    Koch Svedberg, Gion
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Loutfi, Amy
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Pecora, Federico
    Örebro universitet, Akademin för naturvetenskap och teknik.
    A cross-cultural evaluation of domestic assistive robots2008Inngår i: AAAI fall symposium: technical report, v FS-08-02, American Association for Artificial Intelligence , 2008, s. 24-31Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper presents the first steps in a series of on-going user evaluations of intelligent environments for supporting elderly users at home. We specifically focus on a comparison of elderly perceptions of social assistive domestic robots between Italian and Swedish user groups. The evaluation was carried out in Rome, Italy and O¨ rebro, Sweden, including surrounding towns. The results, obtained through a videobased methodology, highlight the variety in level of appreciation of domestic robots for elderly care as it relates to a number of aspects of culture which are not necessarily trivial to identify. Our results suggest some specific factors as important for interpreting the difference in perception, e.g., the user’s acquaintance with ICT (Information and Communication Technology) and the social policies implemented in the two countries. Also, the results show interesting commonalities, such as the general agreement among Swedish and Italian user groups on the physical aspect of the robot.

  • 325.
    Crljenkovic, Maida
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Förstudie, A-wakening (A-verkstaden): Flödeskartläggning2017Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [sv]

    På Volvo Powertrain Köping tillverkas en av världens bästa transmissioner-växellådor och marina drev – till flera av volvokoncernens produkter. Man tillverkar alltså bland annat: axlar, kugg och synkringar för växellådor och båtriggar som även monteras samman i fabrikerna. 

    Volvo Powertrain Köping saknar en visualisering av sina processer. Projektet utformades till en utredning av A-verkstadens artiklar och dess flöden. Med syftet att skapa en överblick över process, materialflöde och förhållande mellan artiklar. Utredningen genererade en identifiering av eventuella flaskhalsar, kritiska områden eller maskiner, samt andra parametrar som kan ha en inverkan på processen. Projektet och utredningen utfördes med olika metoder tillhands, så som 5G metoden, mindmaps, intervjuer etc. Val av metoder kom naturligt under processens gång, och respektive metod redogörs senare i rapporten. Utredningen av nuläget genererade fram en identifiering av en rad olika problemområden med viktiga parametrar som har en direkt koppling och inverkan på processerna.

    Projektet och utredningen alstrade fram ut i ett gäng observationer inom varje identifierat problemområde som i sin tur efter analys och koppling till teori mynnade ut i olika förslag på förbättringar och hantering av dessa.  Projektet har även under processens gång tagit fram en Excel-fil som utvecklades till en mall, en mall som blivit rapportens stora framgång, som direkt kom till användning av Volvo Powertrain Köping.

  • 326.
    Dahlbom, Anders
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Petri nets for situation recognition2011Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    Situation recognition is a process with the goal of identifying a priori defined situations in a flow of data and information. The purpose is to aid decision makers with focusing on relevant information by filtering out situations of interest. This is an increasingly important and non trivial problem to solve since the amount of information in various decision making situations constantly grow. Situation recognition thus addresses the information gap, i.e. the problem of finding the correct information at the correct time. Interesting situations may also evolve over time and they may consist of multiple participating objects and their actions. This makes the problem even more complex to solve. This thesis explores situation recognition and provides a conceptualization and a definition of the problem, which allow for situations of partial temporal definition to be described. The thesis then focuses on investigating how Petri nets can be used for recognising situations. Existing Petri net based approaches for recognition have some limitations when it comes to fulfilling requirements that can be put on solutions to the situation recognition problem. An extended Petri net based technique that addresses these limitations is therefore introduced. It is shown that this technique can be as efficient as a rule based techniques using the Rete algorithm with extensions for explicitly representing temporal constraints. Such techniques are known to be efficient; hence, the Petri net based technique is efficient too. The thesis also looks at the problem of learning Petri net situation templates using genetic algorithms. Results points towards complex dynamic genome representations as being more suited for learning complex concepts, since these allow for promising solutions to be found more quickly compared with classical bit string based representations. In conclusion, the extended Petri net based technique is argued to offer a viable approach for situation recognition since it: (1) can achieve good recognition performance, (2) is efficient with respect to time, (3) allows for manually constructed situation templates to be improved and (4) can be used with real world data to find real world situations.

  • 327. Dahlbom, Anders
    et al.
    Niklasson, Lars
    Falkman, Göran
    Loutfi, Amy
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Towards template-based situation recognition2009Inngår i:  Intelligent sensing, situation management, impact assessment, and cyber-sensing / [ed] Stephen Mott, John F. Buford, Gabriel Jakobson, Michael J. Mendenhall, 2009, Vol. 7352, nr 1, s. 7352 05-Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    The process of tracking and identifying developing situations is an ability of importance within the surveillance domain. We refer to this as situation recognition and believe that it can enhance situation awareness for decision makers. Situation recognition requires that many subproblems are solved. For instance, we need to establish which situations are interesting, how to represent these situations, and which inferable events and states that can be used for representing them. We also need to know how to track and identify situations and how to determine the correlation between present information about situations with knowledge. For some of these subproblems, data-driven approaches are suitable, whilst knowledge-driven approaches are more suitable for others. In this paper we discuss our current research efforts and goals concerning template-based situation recognition. We provide a categorization of approaches for situation recognition together with a formalization of the template-based situation re ognition problem. We also discuss this formalization in the light of a pick-pocket scenario. Finally, we discuss future directions for our research on situation recognition. We conclude that situation recognition is an important problem to look into for enhancing the overall situation awareness of decision makers. ©2009 SPIE.

  • 328.
    Dahlman, Lars
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Rosengren, Tommy
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Visuell styrning – Kvalitet och gemenskap2018Independent thesis Basic level (degree of Bachelor), 10 poäng / 15 hpOppgave
    Abstract [sv]

    Byggbranschen är en tillverkningsindustri som skiljer sig från andra tillverkningsindustrier.Hårda krav på slutprodukten, tillfälliga fabriker och en varierande efterfrågan görbyggbranschen till en unik bransch. För att balansera alla intressenter och samtidigt tillgodosebefolkningen med tak över huvudet och en god infrastruktur ställs branschen inför många ochsvåra utmaningar.Likt alla tillverkningsindustrier så strävar även byggbranschen mot högre kvalitet. Högrekvalitet på produkten samt processen. Det visar sig att ökad kvalitet minskar totalkostnad, gerbättre arbetsmiljö samt är bättre för klimatet. För att erhålla högre kvalitet i verksamhetenanvänds olika typer av kvalitetsverktyg. I den här rapporten utreds hur visuell styrning, somkvalitetsverktyg, bidrar till ökad kvalitet och gemenskap.Visuell styrning handlar om att utnyttja människans visuella inlärningsförmåga och inteendast utnyttja den auditiva. Fenomenet finns runt oss hela tiden, t.ex. trafikskyltar, menyerpå restauranger, reklamskyltar osv. Men att på djupet granska och optimera verktyget för detavsedda ändamålet har visat sig ge goda effekter på arbetsmiljön, processen ochslutprodukten.Examensarbetet är uppbyggt av en litteraturstudie, intervjuer, enkäter och observationer.Syftet med arbetet är att ge en bild av den upplevda effekten av kvalitetsverktyget ochundersöka om det finns förbättringsområden.Utifrån resultatet används visuell styrning i mindre utsträckning vid mindre projekt menverktyget är uppskattat bland både yrkesarbetare och tjänstemän. Det konstateras dock atteffekterna av verktyget är ett resultat av engagemanget bakom användandet. Hälften avtjänstemännen önskar mer utbildning och stöd i visuell styrning men de poängterar också attanvändandet måste vara projektanpassat och att användaren hittar ett eget arbetssätt som dentrivs med.

  • 329.
    Dandan, Kinan
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Ananiev, Anani
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Ivan, Kalaykov
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    SIRO: the silos surface cleaning robot concept2013Konferansepaper (Fagfellevurdert)
    Abstract [en]

    A concept of a suspended robot for surface cleaning in silos is presented in this paper. The main requirements and limitations resulting from the specific operational conditions are discussed. Due to the large dimension of the silo as a confined space, specific kinematics of the robot manipulator is proposed. The major problems in its design are highlighted and an approach to resolve them is proposed. The suggested concept is a reasonable compromise between the basic contradicting factors in the design: small entrance and large surface of the confined space, suspension and stabilization of the robot

  • 330.
    Daoutis, Marios
    et al.
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Coradeschi, Silvia
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Loutfi, Amy
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Integrating common sense in physically embedded intelligent systems2009Inngår i: Intelligent environments 2009 / [ed] V. Callaghan, A. Kameas, A. Reyes, D. Royo, M. Weber, Amsterdam: IOS Press , 2009, s. 212-219Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In this paper we describe an implemented framework that integrates knowledge representation and reasoning in a symbiotic system. In such systems a number of heterogeneous sensors pervasively embedded in the environment, mobile robots and humans co-exist and communicate. In this work, the integration is mediated through perceptual anchoring, which creates and maintains the correspondences between the symbol system and the perceptual data that refer to the same physical object. The overall framework is evaluated using ResearchCyc as the knowledge representation and reasoning system, within the context of a physical testbed, which consists of a small apartment-like home.

  • 331.
    Daoutis, Marios
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Coradeschi, Silvia
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Loutfi, Amy
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Knowledge representation for anchoring symbolic concepts to perceptual data2012Inngår i: Bridges between the Methodological and Practical Work of the Robotics and Cognitive Systems Communities - From Sensors to Concepts / [ed] Springet Publishing, Springer Publishing Company, 2012Kapittel i bok, del av antologi (Fagfellevurdert)
  • 332.
    Daoutis, Marios
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Coradeschi, Silvia
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Loutfi, Amy
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Towards concept anchoring for cognitive robots2012Inngår i: Intelligent Service Robotics, ISSN 1861-2784, Vol. 5, nr 4, s. 213-228Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We present a model for anchoring categorical conceptual information which originates from physical perception and the web. The model is an extension of the anchoring framework which is used to create and maintain over time semantically grounded sensor information. Using the augmented anchoring framework that employs complex symbolic knowledge from a commonsense knowledge base, we attempt to ground and integrate symbolic and perceptual data that are available on the web. We introduce conceptual anchors which are representations of general, concrete conceptual terms. We show in an example scenario how conceptual anchors can be coherently integrated with perceptual anchors and commonsense information for the acquisition of novel concepts.

  • 333.
    Daoutis, Marios
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Mavridis, Nikolaos
    Towards a Model for Grounding Semantic Composition2014Konferansepaper (Fagfellevurdert)
  • 334.
    Dashto, Ramin
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Abduljabar, Foras
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Automatisera handsvetsning samt reducering av oxidering vid svetsning2016Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [sv]

    Denna studie av svetsprocess för rostfria diskbänkar gjordes vid Intra Mölntorp AB. Företaget är marknadsledande inom produktion av diskbänkar och sanitetsutrustningar i rostfritt stål. Syftet med arbetet är att genomföra en förstudie för att automatisera hörnsvetsning av diskbänkar med specialmått samt att reducera oxidering vid hörnsvetsning.

    Handsvetsningen används idag för större diskbänkar som inte får rum i den robotcell där företaget svetsar sina standarddiskbänkar, eftersom destörre bänkarna kräver mer utrymme än vad som finns i nuvarande robotcell. Det finns inte heller tid i robotcellen för att svetsa även dec:a 5000 specialdiskbänkar som produceras varje år.

    Genom att utveckla en manuell handsvetsning till automatiserad svetsning kan företaget minska produktionstiden för varje diskbänk och samtidigt öka arbetssäkerheten. Två förslag har tagits fram för hur en ny cell för bänkar med specialmått kan se ut.

    Slutligen har även en ny modell av gaskåpa tagits fram. Kåpan har till uppgift att skydda svetsområdet mot syre som tränger in och missfärgar deytor som värmt upp. Den nya kåpan ger ett bättre skydd mot syre än den tidigare kåpa som användes och den är tillverkad i ett värmetåligt material samtidigt som den enkelt kan tillverkas i fler exemplar. Fortfarande återstår en del arbete med att undersöka orsakerna till missfärgningen eftersom både temperatur, avsvalningstid och skyddsgaskoncentration påverkar missfärgningen.Missfärgningen kan inte elimineras endast med kåpan utförande.

    Företaget Mölntorp AB har två möjliga lösningskoncept som kan underlätta produktionen att ta ställning till samt att arbeta vidare med gaskåpan där orsakerna till missfärgningen närmare behöver undersökas.

  • 335.
    Davidsson, Jonas
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Bestämning av bruttotemperaturexpansionskoefficient för Faradol 8102013Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [sv]

    Detta examensarbete har genomförts på ABB Power Products/Instrument Transformers i Ludvika. Syftet med arbetet har varit att undersöka temperaturexpansionen för en isolerande olja som använd i produkten Capacitor Voltage Transformer (CVT). Oljans egen temperatur­expansionskoefficient                          var redan känd, men arbetets syfte var att bestämma en Brutto­temperaturexpansionskoefficient, med andra ord undersöka hur mycket de ingående komponenterna i en CVT påverkar den totala volymexpansionen inuti enheten.

    För att bestämma bruttotemperaturexpansionskoefficienten har ett prov i klimatkammare utförts. Provet bestod av två aluminiumkärl vardera med ett monterat mätrör. Det ena kärlet fylldes med olja och det andra kärlet med olja och kondensatorinnehåll motsvarande inne­hållet i en CVT. Provobjekten utsattes sedan för en bestämd tid i temperaturer från -60°C till 65°C med intervall om 10°C. Under denna tid utfördes ett antal mätningar av oljevolymen i de båda provobjekten. Dessa mätningar användes sedan tillsammans med ett några korrektions­faktorer för att beräkna temperaturexpansionskoefficienten för både oljan (enbart för kontroll­erande syfte) och kondensatorinnehållet. Tillsammans ger dessa bruttotemperaturexpansions­koefficienten för alla möjliga volymkombinationer.

    Resultatet från provet har sedan analyserats och visualiserats i form av tabeller och diagram. Efter det beräknades temperaturexpansionskoefficient för oljan samt  för kondensator­innehållet vid olika temperaturer. Utifrån dessa värden beräknades de genomsnittliga temperatur­­expansionskoefficienterna för temperaturintervallet och slutligen angavs en formel för att bestämma bruttotemperaturexpansionskoefficienten för olika procentuella fördelningar mellan olja och kondensatorinnehåll. Till sist drogs slutsatser utifrånfrån resultatet.

  • 336.
    De Meyer, Dorien
    et al.
    Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Ghent University, Ghent, Belgium.
    Gabriel, Sabrina
    Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Germany.
    Kottner, Jan
    Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Ghent University, Ghent, Belgium; Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Germany.
    Van Damme, Nele
    Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Ghent University, Ghent, Belgium.
    Van Den Bussche, Karen
    Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Ghent University, Ghent, Belgium.
    Verhaeghe, Sofie
    Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Ghent University, Ghent, Belgium; Department Health Care, VIVES University College, Roeselare, Belgium.
    Van Hecke, Ann
    Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Ghent University, Ghent, Belgium; Nursing Department, Ghent University Hospital, Ghent, Belgium.
    Beeckman, Dimitri
    Örebro universitet, Institutionen för hälsovetenskaper. Skin Integrity Research Group (SKINT), University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Ghent University, Ghent, Belgium; School of Nursing and Midwifery, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland.
    Outcome measurement instruments for erythema associated with incontinence-associated dermatitis: systematic review2019Inngår i: Journal of Advanced Nursing, ISSN 0309-2402, E-ISSN 1365-2648Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    AIM: To: (1) examine which outcome measurement instruments for erythema associated with incontinence-associated dermatitis with supporting evidence about measurement properties are available; (2) evaluate the methodological quality of the studies and the quality of the measurement properties; and (3) identify eligible instruments to measure erythema in incontinence-associated dermatitis research.

    DESIGN: Systematic review.

    DATA SOURCES: MEDLINE, EMBASE, CINAHL and CENTRAL were systematically searched until July 2018 (update December 2018). Additional input was gathered from 151 incontinence-associated dermatitis experts. Cited and citing references of included studies were screened.

    REVIEW METHODS: The COSMIN Risk of Bias checklist was applied to evaluate the methodological quality of the studies. Reported measurement properties were rated against criteria for good measurement properties.

    RESULTS: Fourteen studies, describing 10 measurement instruments, were included. In five instruments, erythema was captured as a separate concept, two studies provided empirical evidence about the measurement properties. The most studied measurement properties were reliability (9 studies), measurement error (4 studies) and criterion validity (4 studies). In one study, internal consistency was examined.

    CONCLUSION: No instrument measuring exclusively erythema associated with incontinence-associated dermatitis exists. There is no single composite incontinence-associated dermatitis measurement instrument that outperforms others. Development or adaption of an instrument to measure erythema associated with incontinence-associated dermatitis is one option to solve this challenge.

    IMPACT: The evidence about measurement properties of instruments measuring erythema associated with incontinence-associated dermatitis has not been summarized to date. The lack of an instrument should trigger activities to measure this domain accurately in future clinical trials.

  • 337.
    de Miranda, Luis
    The University of Edinburgh, Edinburgh, United Kingdom.
    Life Is Strange and “Games Are Made”: A Philosophical Interpretation of a Multiple-Choice Existential Simulator With Copilot Sartre2018Inngår i: Games and Culture: A Journal of Interactive Media, ISSN 1555-4120, E-ISSN 1555-4139, Vol. 8, nr 1, s. 825-842Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The multiple-choice video game Life is Strange was described by its French developers as a metaphor for the inner conflicts experienced by a teenager in trying to become an adult. In psychological work with adolescents, there is a stark similarity between what they experience and some concepts of existentialist philosophy. Sartre’s script for the movie Les Jeux Sont Faits (literally “games are made”) uses the same narrative strategy as Life is Strange—the capacity for the main characters to travel back in time to change their own existence—in order to stimulate philosophical, ethical, and political thinking and also to effectively simulate existential “limit situations.” This article is a dialogue between Sartre’s views and Life is Strange in order to examine to what extent questions such as what is freedom? what is choice? what is autonomy and responsibility? can be interpreted anew in hybrid digital–human—“anthrobotic”—environments.

  • 338.
    de Miranda, Luis
    et al.
    School of Literatures, Languages and Culture, The University of Edinburgh, UK.
    Ramamoorthy, Subramanian
    School of Informatics, The University of Edinburgh, UK.
    Rovatsos, Michael
    School of Informatics, The University of Edinburgh.
    We, Anthrobot: Learning from Human Forms of Interaction and Esprit de Corps to Develop More Diverse Social Robotics2016Inngår i: What Social Robots Can and Should do, IOS Press, 2016, s. 48-59Kapittel i bok, del av antologi (Fagfellevurdert)
    Abstract [en]

    We contend that our relationship with robots is too often seen within a universalistic and individualistic mind-frame. We propose a specific perspective in social robotics that we call anthrobotics. Anthrobotics starts with the choice to consider the human-machine intertwining as a dynamic union of more or less institutionalised collectives rather than separated discrete realities (individual humans, on one side, and discrete individualised machines on the other). We draw on our research in types of social interaction and esprit de corps to imagine more plural and harmonious forms of shared natural-artificial cognitive systems. We propose to look at four types of organised groups: conformative, autonomist, creative, and universalistic, that may provide guiding principles for the design of more diverse anthrobots.

  • 339.
    Di Lello, Enrico
    et al.
    Dept. of Informatics and Automation, University Roma-3, Italy.
    Loutfi, Amy
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Pecora, Federico
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Saffiotti, Alessandro
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Robotic furniture in a smart environment: the PEIS table2009Inngår i: Workshops Proceedings of the 5th International Conference on Intelligent Environments / [ed] Michael Schneider et al., Amsterdam: IOS Press, 2009, s. 185-192Konferansepaper (Fagfellevurdert)
    Abstract [en]

    According to a recent trend, robotic technologies will be included into domestic environments in the form of simple, networked robotic devices able to cooperate in the performance of tasks. These devices may take the form of smart appliances, distributed sensors, or robotic furniture. In this paper, we describe the design of an autonomous robotic table and its inclusion in a smart environment, the PEIS Ecology. The design takes into account the constraints posed by the domestic environment. The robotic table can perform autonomous point-to-point navigation, and it can collaborate with the other devices in the ecology to perform complex tasks that go beyond simple navigation.

  • 340. Di Lello, Enrico
    et al.
    Saffiotti, Alessandro
    Örebro universitet, Akademin för naturvetenskap och teknik.
    The PEIS table: an autonomous robotic table for domestic environments2011Inngår i: Automatika: Journal for Control, Measurement, Electronics, Computing and Communications, ISSN 0005-1144, E-ISSN 1848-3380, Vol. 52, nr 3, s. 244-255Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    There are two main trends in the area of home and service robotics. The classical one aims at the developmentof a single skilled servant robot, able to perform complex tasks in a passive environment. The second, more recenttrend aims at the achievement of complex tasks through the cooperation of a network of simpler robotic devicespervasively embedded in the domestic environment. This paper contributes to the latter trend by describing the PEISTable, an autonomous robotic table that can be embedded in a smart environment. The robotic table can operatealone, performing simple point-to-point navigation, or it can collaborate with other devices in the environment toperform more complex tasks. Collaboration follows the PEIS Ecology model. The hardware and software designof the PEIS Table are guided by a set of requirements for robotic domestic furniture that differ, to some extent, fromthe requirements usually considered for service robots.

  • 341.
    Di Lello, Enrico
    et al.
    Dept of Informatics and Automation, University Roma-3, Italy.
    Saffiotti, Alessandro
    Örebro universitet, Akademin för naturvetenskap och teknik.
    The PEIS table: an autonomous robotic table for domestic environments2009Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Two main trends are emerging in the area of home and service robotics. The classical one aims at the development of a single skilled servant robot, able to perform complex tasks in a passive environment. The second, more recent trend aims at the achievement of domestic tasks through the cooperation of a network of simpler robotic devices pervasively embedded in the environment. This paper contributes to the latter trend by describing the PEIS Table, a robotic table that can be embedded in a domestic environment and perform autonomous navigation tasks. The PEIS Table can operate alone, or it can be part of a smart robotic environment, based on the concept of PEIS Ecology, and cooperate with other devices to perform more complex tasks. The hardware construction and navigation software of the PEIS Table are guided by a set of requirements for robotic domestic furniture. Interestingly, these are not the same as the requirements usually considered for service robots.

  • 342.
    Di Rocco, Maurizio
    Roma Tre University.
    Formation control through environment pattern recognition for a multi-robotarchitecture2009Konferansepaper (Fagfellevurdert)
  • 343.
    Di Rocco, Maurizio
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik. Roma Tre University, Rome, Italy.
    La Gala, Francesco
    Marine Technology Research Institute (INSEAN), Rome, Italy.
    Ulivi, Giovanni
    Roma Tre University, Rome, Italy.
    Testing Multirobot Algorithms SAETTA: A Small and Cheap Mobile Unit2013Inngår i: IEEE robotics & automation magazine, ISSN 1070-9932, E-ISSN 1558-223X, Vol. 20, nr 2, s. 52-62Artikkel i tidsskrift (Annet vitenskapelig)
  • 344.
    Di Rocco, Maurizio
    et al.
    Roma Tre University, Rome, Italy.
    Pascucci, Federica
    Probabilistic localization in sensor networks using distributed Kalman filter2010Inngår i: 7th IFAC Symposium on Intelligent Autonomous Vehicles 2010, Lecce, Italy / [ed] Giovanni Indiveri, Antonio M. Pascoal, 2010Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In recent years sensor networks have interested fields such as environment monitoring, surveillance and other distributed applications for data elaboration. This interest has been based on the decentralized approach in treating the information. However it is still a challenge to manipulate such streams of data when the dimension of the net becomes large despite computational capabilities and consumption constraints. In most of applications, location awareness is fundamental to accomplish common tasks. In this paper a probabilistic approach to solve localization problem in wireless sensor networks is presented. The algorithm, based on the Kalman Filter, estimates the sensors' location by an adaptive behavior. The technique proposed allows a reduction of the computation burden respect to the traditional Kalman Filter showing, as explained in simulations and real world experiments, good performances.

  • 345.
    Di Rocco, Maurizio
    et al.
    Roma Tre University.
    Pascucci, Federica
    Roma Tre University.
    Sensor network localization using distributed extended Kalman filter2007Konferansepaper (Fagfellevurdert)
  • 346.
    Di Rocco, Maurizio
    et al.
    Roma Tre University.
    Pascucci, Federica
    Roma Tre University.
    Perillo, David
    Roma Tre University.
    Consensus filter for sensor networks localization and tracking2007Konferansepaper (Fagfellevurdert)
  • 347.
    Di Rocco, Maurizio
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Pecora, Federico
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Sivakumar, Prasanna Kumar
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Saffiotti, Alessandro
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Configuration Planning with Multiple Dynamic Goals2013Inngår i: Designing intelligent robots: reintegrating AI II. Papers from the AAAI Spring Symposium, AAAI Press, 2013, s. 12-17Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We propose an approach to configuration planning for robotic systems in which plans are represented as constraint networks and planning is defined as search in the space of such networks. The approach supports reasoning about time, resources, and information dependencies between actions. In addition, the system can leverage the flexibility of such networks at execution time to support dynamic goal posting and re-planning.

  • 348.
    Di Rocco, Maurizio
    et al.
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Reggente, Matteo
    Saffiotti, Alessandro
    Örebro universitet, Akademin för naturvetenskap och teknik.
    Gas source localization in indoor environments using multiple inexpensive robots and stigmergy2011Inngår i: 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), IEEE, 2011, s. 5007-5014Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Environmental monitoring is a rather new field in robotics. One of the main appealing tasks is gas mapping, i.e., the characterization of the chemical properties (concentration, dispersion, etc.) of the air within an environment. Current approaches rely on a robot using standard localization and mapping techniques to fuse gas measures with spatial features. These approaches require sophisticated sensors and/or high computational resources. We propose a minimalistic approach, in which one or multiple low-cost robots exploit the ability to store information in the environment, or “stigmergy”, to effectively compute an artificial potential leading toward the likely location of the gas source, as indicated by a highest gas concentration or fluctuation. The potential is computed and stored directly on an array of RFID tags buried under the floor. Our approach has been validated in extensive experiments performed on real robots in a domestic environment.

  • 349.
    Di Rocco, Maurizio
    et al.
    Roma Tre University, Rome, Italy.
    Ulivi, Giavanni
    An efficient implementation of a particle filter for localization using compass data2010Inngår i: 7th IFAC Symposium on Intelligent Autonomous Vehicles 2010, Lecce, Italy / [ed] Giovanni Indiveri, Antonio M. Pascoal, 2010Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper presents a localization algorithm for a small mobile platform. Taking advantage from modern technology, Saetta, a low cost mobile robot, has been built from scratch. Due to the limited processing capabilities, some ad hoc solutions have been used: the lack of processing resources has been compensated by an efficient implementation of the estimator and by the use of compass measures which ease the computational load. The results show how a careful design allows the implementation of sophisticated algorithms also on small platforms.

  • 350.
    Dibaj, Sara
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Hantering av leverantörsavvikelser2017Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [sv]

    Fuji Autotech är en systemleverantör inom fordonsindustrin. Deras kunder är de största inom lastbilsindustrin bl.a. Scania och Volvo. De arbetar till största del med att utveckla och producera styrkolonner och teleskopaxlar. Produkterna består av olika komponenter som till största del köps in från olika leverantörer. Projektarbetet omfattar hur hanteringen av leverantörsavvikelser sker i företaget. Från att en avvikelse identifierats till att en leverantörsreklamation genomförts. En kartläggning över nuläget med beskrivning har utförts samt förbättringsförslag på hur de kan effektivisera processen har framtagits. Det finns tre problempunkter som har undersökts. Problempunkterna är 1. Antalet avvikande komponenter, då operatören noterar antalet avvikande komponenter händer det att det inte alltid blir exakt. 2. Olika system/formulär, det krävs en del in-och utloggningar mellan olika system samt separata formulär som måste fyllas i. 3. 8D rapport, Fuji har en 8D rapport som de skickar ut till leverantören för att få den besvarad men problemet är att leverantören inte alltid besvarar den. Till problempunkterna har förbättringsförslag tagits fram. Förbättringsförslagen består av att införa ett nytt system, en Excelfil och att införa en våg. Arbetet visar även på fortsatt arbete inom processen samt förbättringsförslag för framtiden. Under arbetets gång har litteratur och vetenskapliga artiklar använts samt kontakt med handledare via mejl och möten hos Fuji för datainsamling.

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