Umeå University's logo

umu.sePublikasjoner
Endre søk
Begrens søket
123 1 - 50 of 129
RefereraExporteraLink til resultatlisten
Permanent link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Treff pr side
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sortering
  • Standard (Relevans)
  • Forfatter A-Ø
  • Forfatter Ø-A
  • Tittel A-Ø
  • Tittel Ø-A
  • Type publikasjon A-Ø
  • Type publikasjon Ø-A
  • Eldste først
  • Nyeste først
  • Skapad (Eldste først)
  • Skapad (Nyeste først)
  • Senast uppdaterad (Eldste først)
  • Senast uppdaterad (Nyeste først)
  • Disputationsdatum (tidligste først)
  • Disputationsdatum (siste først)
  • Standard (Relevans)
  • Forfatter A-Ø
  • Forfatter Ø-A
  • Tittel A-Ø
  • Tittel Ø-A
  • Type publikasjon A-Ø
  • Type publikasjon Ø-A
  • Eldste først
  • Nyeste først
  • Skapad (Eldste først)
  • Skapad (Nyeste først)
  • Senast uppdaterad (Eldste først)
  • Senast uppdaterad (Nyeste først)
  • Disputationsdatum (tidligste først)
  • Disputationsdatum (siste først)
Merk
Maxantalet träffar du kan exportera från sökgränssnittet är 250. Vid större uttag använd dig av utsökningar.
  • 1.
    Ahmad, Farooq
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Selection of foundational ontology for collaborative knowledge modeling in healthcare domain2010Inngår i: Artificial intelligence: methodology, systems, and applications / [ed] Dicheva, Darina; Dochev, Danail, Springer Berlin/Heidelberg, 2010, s. 261-262Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Ontology design is an important process for structuring knowledge to be reused in different projects in the health domain. In this paper, we describe an ontology design for the collaborative knowledge building system ACKTUS to be used for developing personalized knowledge applications for different domains. Different foundational ontologies were compared with respect to selected criteria considered vital for the project, such as modularity and descriptiveness.

  • 2.
    Baskar, Jayalakshmi
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Janols, Rebecka
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap. Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering.
    Guerrero, Esteban
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nieves, Juan Carlos
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    A Multipurpose Goal Model for Personalised Digital Coaching2017Inngår i: Agents and Multi-Agent Systems for Health Care: 10th International Workshop, A2HC 2017, São Paulo, Brazil, May 8, 2017, and International Workshop, A-HEALTH 2017, Porto, Portugal, June 21, 2017, Revised and Extended Selected Papers, Springer, 2017, Vol. 10685, s. 94-116Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Supporting human actors in daily living activities for improving health and wellbeing is a fundamental goal for assistive technology. The personalisation of the support provided by assistive technology in the form of digital coaching requires user models that handle potentially conflicting goals and motives. The aim of this research is to extend a motivational model implemented in an assistive technology, into a multipurpose motivational model for the human actor who is to be supported, which can be translated into a multipurpose goal model for a team of assistive agents. A team of assistive agents is outlined with supplementary goals following the human’s different properties. A method for generating multipurpose arguments relating to different motives were developed, and implemented in a human-agent dialogue system. The results are exemplified based on a use case from an earlier pilot user study of the assistive technology. Future work includes user studies to validate the model.

  • 3.
    Baskar, Jayalakshmi
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Cognitive Architecture of an Agent for Human-Agent Dialogues2014Inngår i: Highlights of Practical Applications of Heterogeneous Multi-Agent Systems: the PAAMS Collection, Springer, 2014, Vol. 430, s. 89-100Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper proposes a cognitive architecture of an intelligent agent that can have a dialogue with a human agent on health-related topics. This architecture consists of four main components, namely, the Belief Base, the Dialogue Manager, the Task Manager and the Plan Generator. Each component has sub-components that perform a set of tasks for the purpose to enable the agent to be enrolled in a dialogue. In this paper the particular sub-component of the Dialogue Manager, the Dialogue Strategy has been discussed in detail. A notion of scheme is introduced, which functions as a template with variables that are instantiated each time a state is entered. The agent’s dialogue strategy is implemented as a combination of the schemes and the state transitions that the agent makes in response to the human’s request. We used a combination of finite-state and agent-based dialogue strategies for dialogue management. This combined dialogue strategy enables a multi-topic dialogue between a human and an agent.

  • 4.
    Baskar, Jayalakshmi
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Human-Agent Dialogues and Their Purposes2017Inngår i: Proceedings of the European Conference on Cognitive Ergonomics 2017, New York, NY, USA: ACM Digital Library, 2017, s. 101-104Konferansepaper (Fagfellevurdert)
    Abstract [en]

    A common conversation between an older adult and a nurse about health-related issues includes topics such as troubles with sleep, reasons for walking around nighttime, pain conditions, etc. Such a dialogue can be regarded as a "natural" dialogue emerging from the participating agents' lines of thinking, their roles, needs and motives, while switching between topics as the dialogue unfolds. The purpose of this work is to define a generic conceptual model of purposeful human-agent dialogue activity including different types of argumentation dialogues, suitable for health-related topics. This is done based on analyses of a scenario, persona and models of human behaviour. The model will be shared between the human and the agent, allowing for adaptation to the human's reasoning, needs and motives.

  • 5.
    Baskar, Jayalakshmi
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Human-Agent Dialogues on Health Topics - An Evaluation Study2015Inngår i: Highlights of practical applications of agents, multi-agent systems, and sustainability: The PAAMS Collection, PAAMS 2015, 2015, s. 28-39Konferansepaper (Fagfellevurdert)
    Abstract [en]

    A common conversation between an older adult and a nurse about health-related issues includes topics such as troubles with sleep, reasons for walking around nighttime, pain conditions, etc. This dialogue emerges from the participating human's lines of thinking, their roles, needs and motives, while switching between topics as the dialogue unfolds. This paper presents a dialogue system that enables a human to engage in a dialogue with a software agent to reason about health-related issues in a home environment. The purpose of this work is to conduct a pilot evaluation study of a prototype system for human-agent dialogues, which is built upon a set of semantic models and integrated in a web application designed for older adults. Focus of the study was to receive qualitative results regarding purpose and content of the agent-based dialogue system, and to evaluate a method for the agent to evaluate its behavior based on the human agent's perception of appropriateness of moves. The participants include five therapists and 11 older adults. The results show users' feedback on the purpose of dialogues and the appropriateness of dialogues presented to them during the interaction with the software agent.

    Fulltekst (pdf)
    fulltext
  • 6.
    Baskar, Jayalakshmi
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Semantic model for adaptive human-agent dialogues2014Manuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    A common conversation between an older adult and a nurse about health-related issues includes topics such as troubles with sleep, reasons for walking around nighttime, pain conditions, etc. Such a dialogue can be regarded as a "natural" dialogue emerging from the participating agents' lines of thinking, their roles, needs and motives, while switching between topics as the dialogue unfolds. The purpose of this work is to define a generic model of purposeful human-agent dialogues suitable for health-related topics. This is done based on analyses of scenarios, personas and models of human behavior. The results include four models, which need to be included in a software agent's belief base; i) a user model, ii) a model of the domain knowledge related to the topic of the dialogue, iii) an agent model, and iv) a dialogue activity model. The models were implemented into a prototype system for human-agent dialogues, which was evaluated by therapists and a group of older adults.

  • 7.
    Baskar, Jayalakshmi
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Towards personalised support for monitoring and improving health in risky environments2013Inngår i: VIII Workshop on Agents Applied in Health Care (A2HC), 2013, s. 93-104Konferansepaper (Fagfellevurdert)
  • 8.
    Baskar, Jayalakshmi
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Surie, Dipak
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Yan, Chunli
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Yekeh, Farahnaz
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Personalisation and user models for support in daily living2012Inngår i: The 27th annual workshop of the Swedish Artificial Intelligence Society (SAIS), 14–15 May 2012 / [ed] Lars Karlsson, Julien Bidot, 2012, s. 7-16Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In recent years, the interest in developing personalised applications for home environment has grown since it has a wide reach in helping people in their daily activities. However, for our purposes the concept activities of daily living also need to include work and leisure activities not necessarily performed in home environments. In this article, we describe an ongoing effort to develop a generic framework for assessing ability and tailoring of support applications in the health domain. We also give an overview of the approaches that have been adopted for personalisation and user modelling to various application areas. Suggestions of future development are provided.

    Fulltekst (pdf)
    fulltext
  • 9.
    Baskar, Jayalakshmi
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Yan, Chunli
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    User's control of personalised intelligent environments supporting health2013Inngår i: Intelligent Environments (IE), 2013 9th International Conference on, IEEE Computer Society, 2013, s. 270-273Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This research project aims at supporting workers in the mining and construction industries and older adults at home, in monitoring the risks of their daily work or living situation. A goal is to create awareness in the individual about risks and how to decrease risks. Methods and knowledge-based applications are developed, which synthesise knowledge about the user, the user’s activities, the environment and generic domain knowledge for the purpose of providing tailored support and advice to individuals. This knowledge is also what the user can relate to, interact with and control through different methods. In this paper we investigate different approaches to user control of intelligent environments and propose a dialogue-based method for user control.

  • 10.
    Baskar, Jayalakshmi
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Yan, Chunli
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Instrument-Oriented Approach to Detecting and Representing Human Activity for Supporting Executive Functions and Learning2017Inngår i: Proceedings of the European Conference on Cognitive Ergonomics 2017, New York, NY, USA: ACM Digital Library, 2017, s. 105-112Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The goal of this study is to develop a computer-interpretable model for activity detection and representation, based on existing informal models of how humans perform activity. Appropriate detection of purposeful human activity is an essential functionality of active assistive technology aiming at providing tailored support to individuals for improving activity performance and completion. The main contribution is the design of a model for detection and representation of human activities based on three categories of instruments, which is implemented as two generic and supplementary terminology models: an event ontology and a core ontology. The core ontology is extended for each new knowledge domain into a domain ontology. The model builds the base for personalization of services generated by the cooperative reasoning performed by a human collaborating with an intelligent and social software agent. Ongoing and future work includes user studies in the different application domains.

  • 11.
    Blusi, Madeleine
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för omvårdnad.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nilsson, Ingeborg
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för arbetsterapi.
    Factors to consider when introducing digital social activities to older persons with home care2023Inngår i: Caring is sharing: exploiting the value in data for health and innovation / [ed] Maria Hägglund; Madeleine Blusi; Stefano Bonacina; Lina Nilsson; Inge Cort Madsen; Sylvia Pelayo; Anne Moen; Arriel Benis; Lars Lindsköld; Parisis Gallos, IOS Press, 2023, Vol. 302, s. 453-457Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Social isolation and loneliness have become everyday concerns forpopulations all over the world as these factors are affecting both physical and mentalhealth in a negative way. Feelings of isolation and loneliness are increasinglyacknowledged as a health risk among older persons. ICTs have been recognized aseffective tools to combat social isolation among older people. The aim of this studywas to explore factors of significance when introducing a tablet-based systemproviding digital social activities for older persons with home care. Participants were17 persons, age 70 and older, who lived alone and had assistance from home care.This exploratory study used cross-sectional qualitative data analyzed throughthematic analysis. Three themes were generated: 1) lacking vocabulary related tothe context, 2) intuitive user interface may replace extensive instructions and 3)unwillingness to commit to a pre-defined measure of performance.

    Fulltekst (pdf)
    fulltext
  • 12.
    Blusi, Madeleine
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap. Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Arbetsterapi.
    Nilsson, Ingeborg
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Arbetsterapi.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Older adults co-creating meaningful individualized social activities online for healthy ageing2018Inngår i: Building continents of knowledge in oceans of data: The future of co-created eHealth / [ed] Adrien Ugon, Daniel Karlsson, Gunnar O. Klein, Anne Moen, IOS Press, 2018, Vol. 247, s. 775-779Kapittel i bok, del av antologi (Fagfellevurdert)
    Abstract [en]

    Social isolation and loneliness among older people is a growing problem with negative effects on physical and mental health. In co-creation with older adults individualized social activities were designed where older adults through computer mediated communication were able to participate in social activities without leaving their homes. Four types of activities were designed; outdoor activity, music event, visiting a friend and leisure activity. A participatory action research design was applied, where end users together with scientists from two research fields developed, tested and evaluated online participation in the activities. Usability and safety of the systems were major concerns among older adults. The evaluation pointed out that level of simplicity, usability and audio-video quality determined the level of satisfaction with the human interaction during the activity, thereby affecting the meaningfulness of the activity. The research presented in this paper constitutes the first step in a long-term research process aiming at developing a digital coaching system that gives older adults personalized support for increasing participation in meaningful social activities.

    Fulltekst (pdf)
    fulltext
  • 13.
    Danielsson, Karin
    et al.
    Umeå universitet, Samhällsvetenskapliga fakulteten, Institutionen för informatik.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Mulvenna, Maurice
    Computer Science, Ulster University.
    Nilsson, Ingeborg
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Arbetsterapi.
    Waterworth, John
    Umeå universitet, Samhällsvetenskapliga fakulteten, Institutionen för informatik.
    Digital technology in healthcare and elderly care2017Inngår i: ECCE 2017: proceedings of the European conference on cognitive ergonomics 2017, Association for Computing Machinery (ACM), 2017, s. 188-190Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    The focus of this ECCE 2017 panel is on digital technology in healthcare and elderly care. The discussion concerns the design of technology and the use of technology for health. 

  • 14.
    Dragoni, Mauro
    et al.
    Fondazione Bruno Kessler, Trento, Italy.
    Bailoni, Tania
    Fondazione Bruno Kessler, Trento, Italy.
    Donadello, Ivan
    Free University of Bolzano, Bolzano, Italy.
    Martin, Jean-Claude
    LISN-CNRS, Universite Paris Saclay, Paris, France.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Integrating functional status information into knowledge graphs to support self-health management2023Inngår i: Data Intelligence, ISSN 2096-7004, Vol. 5, nr 3, s. 636-662Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Functional Status Information (FSI) describes physical and mental wellness at the whole-person level. It includes information on activity performance, social role participation, and environmental and personal factors that affect the well-being and quality of life. Collecting and analyzing this information is critical to address the needs for caring for an aging global population, and to provide effective care for individuals with chronic conditions, multi-morbidity, and disability. Personal knowledge graphs (PKGs) represent a suitable way for meaning in a complete and structured way all information related to people’s FSI and reasoning over them to build tailored coaching solutions supporting them in daily life for conducting a healthy living. In this paper, we present the development process related to the creation of a PKG by starting from the HeLiS ontology in order to enable the design of an AI-enabled system with the aim of increasing, within people, the self-awareness of their own functional status. In particular, we focus on the three modules extending the HeLiS ontology aiming to represent (i) enablers and (ii) barriers playing potential roles in improving (or deteriorating) own functional status and (iii) arguments driving the FSI collection process. Finally, we show how these modules have been instantiated into real-world scenarios.

    Fulltekst (pdf)
    fulltext
  • 15.
    Dragoni, Mauro
    et al.
    Fondazione Bruno Kessler, Trento, Italy.
    Bailoni, Tania
    Fondazione Bruno Kessler, Trento, Italy.
    Martin, Jean-Claude
    LISN-CNRS, Universite Paris Saclay, Pans, France.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Guerrero Rosero, Esteban
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    An ontology-based coaching solution for increasing self-awareness of own functional status2021Inngår i: CEUR Workshop Proceedings / [ed] Denis Newman-Griffis; Bart Desmet; Ayah Zirikly; Suzanne Tamang; Hongfang Liu, CEUR-WS , 2021, s. 1-11Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Functional Status Information (FSI) describes physical and mental wellness at the whole-person level, and includes information on activity performance, social role participation, and environmental and personal factors that affect well-being and quality of life. Collecting and analyzing this information is critical to addressing the data needs in caring for aging global populations, and providing effective care for individuals with chronic conditions, multi-morbidity, and disability. In this paper, we present a first step towards the design of Al-enabled system increasing the self-awareness of own functional status. In particular, we focus on the underlying semantic layer of the such an Al-enabled system by presenting two modules extending the HeLiS ontology aiming (i) to represent barriers in improving own functional status and (ii) to support the conceptual representation of the arguments leading to the detection of such barriers. Finally, we show through a running example how these modules can be instantiated.

    Fulltekst (pdf)
    fulltext
  • 16.
    Eklund, Patrik
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Eriksson, S
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering.
    Karlsson, Johan
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Näslund, Annica
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Software development and maintenance strategies for guideline implementation2001Inngår i: EUNITE-Workshop: intelligent systems in patient care, Austrian Computer Society , 2001, s. 26-45Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In this paper we discuss various software engineering aspects of guideline computerisation, both from domain oriented as well as technology driven points of view. The discussion includes case studies on pharmacological treatment of hypertension, diagnosis of dementia, and drug interactions.

  • 17.
    Eklund, Patrik
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Helgesson, Robert
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Towards Refinement of Clinical Evidence Using General Logics2008Inngår i: Artificial Intelligence and Soft Computing – ICAISC 2008: Proceedings / [ed] Leszek Rutkowski; Ryszard Tadeusiewicz; Lotfi A. Zadeh; Jacek M. Zurada, Springer, 2008, s. 1029-1040Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Clinical knowledge building upon evidence-based medicine is typically represented in textual guidelines, thus providing a rather informal description from a logical point of view. Further, the context which provides utility of these guidelines is not specified in any detail with respect to workflow and underlying motivations for decision-making. In addition, the level of detail is mostly static in the sense that measurements and decision values are fixed and intended for specific user groups. There is thus a lack of flexibility which disables knowledge to be shifted coherently between user levels in the entire workflow and decision process. In this paper, we will discuss formalizations of the underlying logical structures of guidelines from the viewpoint of being represented appropriately at each user level. Further, to establish a formal correctness criterion, the shift from one level of representation to another is required to be morphic in the categorical sense. General logics [7] is the selected generalized, and categorical, framework for our approach to flexible guideline representation. Our medical scope is dementia differential diagnosis based on consensus guidelines [2], and we focus on types of cognitive disorders as a prerequisite for further diagnostic tasks.

  • 18.
    Eklund, Patrik
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Helgesson, Robert
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Towards refining clinical evidence using general logics2008Inngår i: Artificial Intelligence and Soft Computing – ICAISC 2008: 9th International Conference Zakopane, Poland, June 22-26, 2008, Proceedings, Springer , 2008, s. 1029-1040Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Clinical knowledge building upon evidence-based medicine is typically represented in textual guidelines, thus providing a rather informal description from a logical point of view. Further, the context which provides utility of these guidelines is not specified in any detail with respect to workflow and underlying motivations for decision-making. In addition, the level of detail is mostly static in the sense that measurements and decision values are fixed and intended for specific user groups. There is thus a lack of flexibility which disables knowledge to be shifted coherently between user levels in the entire workflow and decision process. In this paper, we will discuss formalizations of the underlying logical structures of guidelines from the viewpoint of being represented appropriately at each user level. Further, to establish a formal correctness criterion, the shift from one level of representation to another is required to be morphic in the categorical sense. General logics [6] is the selected generalized, and categorical, framework for our approach to flexible guideline representation. Our medical scope is dementia differential diagnosis based on consensus guidelines [2], and we focus on types of cognitive disorders as a prerequisite for further diagnostic tasks.

  • 19.
    Eklund, Patrik
    et al.
    Umeå universitet, Teknisk-naturvetenskaplig fakultet, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskaplig fakultet, Institutionen för datavetenskap.
    Towards Dementia Diagnosis Logic2006Inngår i: 11th Int. Conf. Information Processing and Management of Uncertainty in Knowledge-based Systems (IPMU'06), Paris: Editions EDK , 2006, s. 1251-1257Konferansepaper (Fagfellevurdert)
    Abstract [en]
    Historical motivations for classification systems in health care are requirements of data collections for statistics. Aims to unify data collections eventually becomes a starting point for nomenclature and ontology developments. Diagnosis encoding plays an important role in shifting the paradigm from providing statistics to making decisions. For logic and decision support the situation is non-trivial as nomenclatures continuously change and diagnostic categories are extended. Further, management of both phenomenology and etiology in differential diagnosis requires organisation and logical structure of information modalities and disease taxonomies. In this paper we provide a logical analysis of a diagnostic manual dividing mental disorders into disorder types. The subdivision is based on criteria (rule) sets and defining features (facts). Our focus is on dementia and we show and compare how particular underlying logic for encoding the dementia classifier can manage heterogeneity of individuals sharing a diagnosis and manyvaluedness of truth regarding diagnosis of boundary cases.
  • 20.
    Fischl, Caroline
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för arbetsterapi. Department of Rehabilitation, School of Health and Welfare, Jönköping University, Jönköping, Sweden.
    Blusi, Madeleine
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap. Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för arbetsterapi. Association of Local Authorities in Västernorrland County, Härnösand, Sweden.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nilsson, Ingeborg
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för arbetsterapi.
    Tailoring to support digital technology-mediated occupational engagement for older adults: a multiple case study2020Inngår i: Scandinavian Journal of Occupational Therapy, ISSN 1103-8128, E-ISSN 1651-2014, Vol. 27, nr 8, s. 577-590Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: With the evolution of contemporary occupations mediated by digital technologies (DTs), there is a need for occupational therapists to develop and structure knowledge on how to support older adults’ engagement in occupations and social participation in a digitalised society.

    Objective: The objective of this study is to explore how tailoring to support older adults’ engagement in DT-mediated occupations could be schematised.

    Material and methods: The study employed a multiple case study methodology. There were nine cases, with each case involving an older adult undergoing a collaborative process to support engagement in DT-mediated occupations. The collaborative process was initiated through questionnaires, observations, and dialogues. Meetings and tailoring strategies were documented in fieldnotes and memos on tailoring, respectively. Semi-structured interviews concluded data collection. Cross-case synthesis was used in data analysis.

    Results: The result is a proposed scheme for tailoring to support older adults’ engagement in digital technology-mediated occupations, wherein strategies undertaken in the collaborative processes were synthesised and described.

    Conclusion and significance: The proposed scheme for tailoring could contribute to occupational therapists’ knowledge on how to support older adults’ engagement in contemporary occupations. Testing the model in various practice settings is recommended in order to enhance occupational therapy practice.

    Fulltekst (pdf)
    fulltext
  • 21.
    Fischl, Caroline
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för arbetsterapi. Department of Rehabilitation, School of Health and Welfare, Jönköping University, Jönköping, Sweden.
    Lindelöf, Nina
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nilsson, Ingeborg
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för arbetsterapi.
    Older adults’ perceptions of contexts surrounding their social participation in a digitalized society: an exploration in rural communities in Northern Sweden2020Inngår i: European Journal of Ageing, ISSN 1613-9372, E-ISSN 1613-9380, Vol. 17, s. 281-290Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Social participation and digital engagement can contribute to health and well-being among older adultsBecause of older adults’ decline in abilities, coupled withcomplex technology and its perceived insufficient relevance to daily life, there is a need to create and tailor social opportunities and services that are supported by digital technologies for older adults to continue participating in society. Thus, it becomes relevant to explore older adults’ perceptions about contexts surrounding their social participation in a digital society. This exploration used a qualitative research design with focus group interviews and qualitative content analysis. Eighteen older adults, aged 66-81 years, from rural communities in Northern Sweden, participated in this study. The analysis resulted in three categories: Experiencing conditions for social participation in a state of flux, Perceiving drawbacks of urbanization on social participation, Welcoming digital technology that facilitates daily and community living.These categories were encapsulated in the theme –The juxtaposition of narrowing offline social networks and expanding digital opportunities for social participation. The findings suggested that co-creating usable digitalized services and facilitating satisfactory use of digital technologies could support older adults’ social participation through activities that they find relevant in their lives, and subsequently, might enable them to live longer at home.

    Fulltekst (pdf)
    fulltext
  • 22.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Practical reasoning about complex activities2017Inngår i: Advances in Practical Applications of Cyber-Physical Multi-Agent Systems: The PAAMS Collection / [ed] Yves Demazeau, Paul Davidsson, Javier Bajo, Zita Vale, Cham: Springer International Publishing AG , 2017, s. 82-94Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In this paper, we present an argument-based mechanism to generate hypotheses about belief-desire-intentions on dynamic and complex activities of a software agent. We propose to use a composed structure called activity as unit for agent deliberation analysis, maintaining actions, goals and observations of the world always situated into a context. Activity transformation produces changes in the knowledge base activity structure as well in the agent’s mental states. For example, in car driving as a changing activity, experienced and novice drivers have a different mental attitudes defining distinct deliberation processes with the same observations of the world. Using a framework for understanding activities in social sciences, we endow a software agent with the ability of deliberate, drawing conclusion about current and past events dealing with activity transformations. An argument-based deliberation is proposed which progressively reason about activity segments in a bottom-up manner. Activities are captured as extended logic programs and hypotheses are built using an answer-set programming approach. We present algorithms and an early-stage implementation of our argument-based deliberation process.

    Fulltekst (pdf)
    fulltext
  • 23.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Towards motivation-driven intelligent interfaces: Formal argumentation meets activity theory2021Inngår i: 2021 Swedish Artificial Intelligence Society Workshop (SAIS), IEEE, 2021, artikkel-id 9484008Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Theories about human activity and motivation point out that motives are driving forces behind human activities and development of healthy and unhealthy habits. Activity theory is one of these that has been applied to develop activity-centered user interfaces. Activity theory differentiates between sense-making and stimuli-oriented types of motives that have a strong influence on our daily behavior. Two main challenges are explored in this paper: 1) the personalisation of graphical user interfaces to mediate representations of motivation-based activities to support behaviour change processes; and 2) the proactiveness of such visual representations.

    As methods, we use activity theory as a framework for defining the motivations' dynamics, and formal argumentation theory as the underlying mechanism for interactive reasoning and decision-making in the process of generating the user interface.

    Our contributions are two-folded: 1) a dynamic graphical user interface where the background responds to behaviors linked to sense-making motives, and the foreground to stimuli motivation; and 2) a non-monotonic reasoning mechanism endowing the user interface with proactiveness (not only react to the user interactions but trigger and direct attention to potential conflicts), and a motive-based behavior conflict resolution process. Future work includes user studies to explore how triggering of focus may create increased awareness in an individual of conflicting motives in daily activities and how this may support changes of unhealthy habits.

  • 24.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Typologies of Persuasive Strategies and Content: A Formalization Using Argumentation2021Inngår i: Advances in Practical Applications of Agents, Multi-Agent Systems, and Social Good. The PAAMS Collection / [ed] Dignum F., Corchado J.M., De La Prieta F, Springer Science+Business Media B.V., 2021, s. 101-113Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Persuasion is an active research topic in artificial intelligence (AI), human-computer interaction (HCI), and social sciences. When persuasive technology has been designed, some HCI guidelines have commonly used disregarding the current AI state of the art, for example, ignoring autonomy and proactive AI behavior. In this paper, a systematic review of HCI persuasive strategies and their corresponding content is mapped to a formal AI approach using argumentation theory. We also present experimental results using as context a mobile application for behavior change in the Swedish context.

  • 25.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nieves, Juan Carlos
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    ALI, an ambient assisted living system for supporting behavior change2013Inngår i: VIII Workshop on Agents Applied in Health Care (A2HC 2013), 2013, s. 81-92Konferansepaper (Fagfellevurdert)
  • 26.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nieves, Juan Carlos
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    ALI, an Assisted Living System Based on a Human-Centric Argument-Based Decision Making Framework2013Inngår i: 13th Workshop on Computational Models of Natural Arguments (CMNA 2013), 2013, s. 46-51Konferansepaper (Fagfellevurdert)
  • 27.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lu, Ming-Hsin
    Yueh, Hsiu-Peng
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Designing and evaluating an intelligent augmented reality system for assisting older adults’ medication management2019Inngår i: Cognitive Systems Research, ISSN 2214-4366, E-ISSN 1389-0417, Vol. 58, s. 278-291Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Intelligent Assistive Systems (IASs) provide personalised support to individuals to increase their autonomy and competence in performing activities. The personalisation of such technology represents a particular challenge, for the individuals abilities typically change over time. The aim of this research was to explore a theory-based, activity-centred framework for the development of IASs that both facilitate the active involvement of caregivers and target users and allow for adaptation to the individual over time.

    Medication management was focused on as a case study. Three older adults and two caregivers were involved in a co-design process of an IAS prototype system, the MED-AR, which uses projection-based augmented reality as the user interface technology. The theoretical framework for the design and evaluation of the MED-AR was activity theory. For the decision-making process of the MED-AR, formal argumentation theory was used. The major contributions of the study are (i) a formal framework for understanding the level of independence in activities and the way an IAS can tailor support to an individual and a situation, including caregivers; and (ii) a model for involving older adults and caregivers in a co-design process in the first phases of developing IASs.

    Fulltekst (pdf)
    fulltext
  • 28.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lu, Ming-Hsin
    Human Performance and Technology Lab, National Taiwan University, Taiwan.
    Yueh, Hsiu-Ping
    Human Performance and Technology Lab, National Taiwan University, Taiwan.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Autonomous adaptation of software agents in the support of human activities2018Inngår i: Joint Workshop on AI in Health / [ed] Lenz R., Montagna S., Bichindaritz I., Martin C., ten Teije A., Koster A., Guttmann C., Reichert M., Riano D., Guttmann C., Koch F., Schumacher M.I., Herrero P., Ibanez B.L., Marling C., Montani S., Wiratunga N., CEUR-WS , 2018, s. 144-156Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper is aimed at formalizing the interplay among a person to be assisted, an assistive agent-based software, and a caregiver. We propose principles that agents should follow in such interplay, this principles may have impact in different agent-based assistive technology. We propose a mechanism to integrate individual’s information into the final decision-making process of an agent. Moreover, we endow agents with mechanisms for evaluating the distance between independent and supported activity execution, the so called zone of proximal development (ZPD) in four scenarios: I) independent activity execution by a person; II) ZPDH activity performance of a person supported by another person (e.g. a therapist); III) the ZPDS representing a potential activities when a person is supported by a software agent; and IV) the ZPDH+S when a person is supported by a caregiver and a software agent. Formal argumentation theory is used as foundation. Our formal models were tested using a prototype using augmented reality as assistive software. A pilot study with older adults and health-care personnel was performed and formal and empirical results are presented.

  • 29.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nieves, Juan Carlos
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    ALI: an assisted living system for persons with mild cognitive impairment2013Inngår i: 2013 IEEE 26th International symposium on computer-based medical systems (CBMS), 2013, s. 526-527Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We introduce the Assisted Living system ALI, which is a novel approach to providing assistance and support in activities of daily life. We integrate a human behavior theory with a default reasoning decision making framework. This integration allows us to model a decision making problem from a human activity centric point of view and at the same time, formalize these elements using a possibilistic argumentation theory. ALI sends personalized notifications suggesting the most suitable activities to perform and determines what activities were performed during a time period.

  • 30.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nieves, Juan Carlos
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    ALI: an Assisted Living System for Persons with Mild Cognitive Impairment2013Inngår i: 26th IEEE International Symposium on Computer-Based Medical Systems (CBMS 2013), IEEE Computer Society, 2013, s. 526-527Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We introduce the Assisted Living system ALI, which is a novel approach to providing assistance and support in activities of daily life. We integrate a human behavior theory with a default reasoning decision making framework. This integration allows us to model a decision making problem from a human activity centric point of view and at the same time, formalize these elements using a possibilistic argumentation theory. ALI sends personalized notifications suggesting the most suitable activities to perform and determines what activities were performed during a time period.

  • 31.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nieves, Juan Carlos
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    An activity-centric argumentation framework for assistive technology aimed at improving health2016Inngår i: Argument & Computation, ISSN 1946-2174, Vol. 7, nr 1, s. 5-33Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Tailoring assistive systems for guiding and monitoring an individual in daily living activities is a complex task. This paper presents ALI, an assistive system combining a formal possibilistic argumentation system and an informal model of human activity: the Cultural-Historic Activity Theory, facilitating the delivery of tailored advices to a human actor. We follow an activity-centric approach, taking into consideration the human’s motives, goals and prioritized actions. ALI tracks a person in order to I) determine what activities were performed over a period of time (activity recognition tracking), and II) send personalized notifications suggesting the most suitable activities to perform (decision-making monitoring). The ALI system was evaluated in a formative pilot study related to promote social activities and physical exercise.

    Fulltekst (pdf)
    fulltext
  • 32.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nieves, Juan Carlos
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Arguing through the well-founded semantics: an argumentation engine2014Manuskript (preprint) (Annet vitenskapelig)
  • 33.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nieves, Juan Carlos
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Semantic-based construction of arguments: an answer set programming approach2015Inngår i: International Journal of Approximate Reasoning, ISSN 0888-613X, E-ISSN 1873-4731, Vol. 64, s. 54-74Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In this paper, we introduce an argumentation approach which takes an extended logic program as input and gives a set of arguments with the respective disagreements among them as output. We establish the notion of an argument under the Well-Founded semantics and Stable semantics inferences, allowing us to identify arguments with stratified programs as support, even when the input for the argument engine is a non-stratified program. We propose a set of rationality postulates for argument-based systems under extended logic programs, which are based on a definition of closure for a set of clauses that consider the well-known Gelfond-Lifschitz reduction. We establish the conditions under which our approach satisfies these principles. In addition, we present a standalone argumentation-tool based on the XSB system which implements our argumentation approach.

  • 34.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nieves, Juan Carlos
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Sandlund, Marlene
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Fysioterapi.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Activity qualifiers in an argumentation framework as instruments for agents when evaluating human activity2016Inngår i: Advances in Practical Applications of Scalable Multi-agent Systems. The PAAMS Collection: 14th International Conference, PAAMS 2016, Sevilla, Spain, June 1-3, 2016, Proceedings / [ed] Yves Demazeau, Takayuki Ito, Javier Bajo, Maria José Escalona, Springer, 2016, Vol. 9662, s. 133-144Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    Theoretical frameworks have been developed for enabling software agents to evaluate simple activities such as walking and sitting. However, such frameworks typically do not include methods for how practically dealing with uncertain sensor information. We developed an argument-based method for evaluating complex goal-based activities by adapting two qualifiers: Performance and Capacity defined in the health domain. The first one evaluates what a person does, and the second one how "well" or "bad" an activity is executed. Our aim is to deal with uncertainty and inconsistent information; generate consistent hypotheses about the activity execution; and resemble an expert therapist judgment, where an initial hypothesis assessment can be retracted under new evidence. We conducted a pilot test in order to evaluate our approach using a Physiotherapy assessment test as a goal-based activity. Results show that skeptic argumentation semantics are may be useful for discriminating individuals without physical issues by considering Performance and Capacity; conversely, credulous semantics may be suitable for obtaining information in the evaluation of activity, which an intelligent agent may use for providing personalized assistance in an ambient assisted living environment.

  • 35.
    Guerrero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Nieves, Juan Carlos
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Sandlund, Marlene
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Fysioterapi.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Activity qualifiers using an argument-based construction2018Inngår i: Knowledge and Information Systems, ISSN 0219-1377, E-ISSN 0219-3116, Vol. 54, nr 3, s. 633-658Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Based on an argumentation theory approach, we present a novel method for evaluating complex goal-based activities by generalizing a notion of qualifier defined in the health domain. Three instances of the general qualifier are proposed: Performance, Actuation and Capacity; the first one evaluates what a person does, the second how an individual follows an action plan, and the third one how "well" or "bad" an activity is executed. Qualifiers are intended to be used by autonomous systems for evaluating human activity. We exemplify our approach using a health domain assessment protocol. Main results of this test show a partial correlation between ambiguities assessed by experts and our argument-based approach; and a multi-dimensional perspective how an activity is executed when a combined evaluation of qualifiers is used. This last outcome was interesting for some therapists consulted. Results also show differences between values of qualifiers using different argumentation semantics; two scenarios were proposed by therapist for using different semantics: preliminary activity screening and time-span follow-up evaluation.

    Fulltekst (pdf)
    fulltext
  • 36.
    Guerrero, Esteban
    et al.
    University of Vaasa, Vaasa, Finland.
    Tewari, Maitreyee
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Kalmi, Panu
    University of Vaasa, Vaasa, Finland.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Forming We-intentions under breakdown situations in human-robot interactions2023Inngår i: Computer Methods and Programs in Biomedicine, ISSN 0169-2607, E-ISSN 1872-7565, Vol. 242, artikkel-id 107817Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background and Objective: When agents (e.g. a person and a social robot) perform a joint activity to achieve a joint goal, they require sharing a relevant group intention, which has been defined as a We-intention. In forming We-intentions, breakdown situations due to conflicts between internal and “external” intentions are unavoidable, particularly in healthcare scenarios. To study such We-intention formation and “reparation” of conflicts, this paper has a two-fold objective: introduce a general computational mechanism allowing We-intention formation and reparation in interactions between a social robot and a person; and exemplify how the formal framework can be applied to facilitate interaction between a person and a social robot for healthcare scenarios.

    Method: The formal computational framework for managing We-intentions was defined in terms of Answer set programming and a Belief-Desire-Intention control loop. We exemplify the formal framework based on earlier theory-based user studies consisting of human-robot dialogue scenarios conducted in a Wizard of Oz setup, video-recorded and evaluated with 20 participants. Data was collected through semi-structured interviews, which were analyzed qualitatively using thematic analysis. N=20 participants (women n=12, men=8, age range 23-72) were part of the study. Two age groups were established for the analysis: younger participants (ages 23-40) and older participants (ages 41-72).

    Results: We proved four theoretical propositions, which are well-desired characteristics of any rational social robot. In our study, most participants suggested that people were the cause of breakdown situations. Over half of the young participants perceived the social robot's avoidant behavior in the scenarios.

    Conclusions: This work covered in depth the challenge of aligning the intentions of two agents (for example, in a person-robot interaction) when they try to achieve a joint goal. Our framework provides a novel formalization of the We-intentions theory from social science. The framework is supported by formal properties proving that our computational mechanism generates consistent potential plans. At the same time, the agent can handle incomplete and inconsistent intentions shared by another agent (for example, a person). Finally, our qualitative results suggested that this approach could provide an acceptable level of action/intention agreement generation and reparation from a person-centric perspective.

    Fulltekst (pdf)
    fulltext
  • 37.
    Guerrero Rosero, Esteban
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lu, Ming-Hsin
    Department of Bio-Industry Communication and Development, National Taiwan University, Taipei, Taiwan.
    Yueh, Hsiu-Ping
    Department of Bio-Industry Communication and Development, National Taiwan University, Taipei, Taiwan; Department of Psychology, National Taiwan University, Taipei, Taiwan.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Design principles and action reflection for agent-based assistive technology2019Inngår i: Artificial intelligence in health: first international workshop, AIH 2018, Stockholm, Sweden, July 13-14, 2018, revised selected papers / [ed] Fernando Koch; Andrew Koster; David Riaño; Sara Montagna; Michael Schumacher; Annette ten Teije; Christian Guttmann; Manfred Reichert; Isabelle Bichindaritz; Pau Herrero; Richard Lenz; Beatriz López; Cindy Marling; Clare Martin; Stefania Montani; Nirmalie Wiratunga, Springer, 2019, s. 84-98Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper is aimed at formalizing the interplay among a person to be assisted, an assistive agent-based software, and a caregiver. We propose general principles for designing the interplay between a person to be assisted and an agent based on formal argumentation theory to characterize the agent’s reasoning processes. These principles emerge from a novel perspective to understand assistive technology using the concept of zone of proximal development (ZPD) from social sciences. ZPD can be understood as a measurement of activity development, comparing what a person can perform with or without external help. We characterize a rational agent in four ZPD zones: (I) independent activity execution, agent takes no action; (II) ZPDH: a person supported by another person, agent takes no action; (III) ZPDS: a person is supported by an agent; and (IV) ZPDH+S: a person is supported by a caregiver and a software agent at the same time. An algorithm was developed for the agent to reason about the actions to be selected in different situations, based on formal argumentation theory for allowing non-monotonic reasoning. The formal models and algorithm were implemented in a prototype system using augmented reality as interface. Future work includes evaluating the principles and algorithm in actual use situations.

  • 38.
    Janols, Rebecka
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering.
    Guerrero, Esteban
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    A Pilot Study on Personalised Coaching to Increase Older Adults' Physical and Social Activities2017Inngår i: Ambient Intelligence - Software and Applications - 8th International Symposium on Ambient Intelligence (ISAmI 2017) / [ed] Juan F. De Paz, Vicente Julián, Gabriel Villarrubia, Goreti Marreiros, Paulo Novais, Springer, 2017, Vol. 615, s. 140-148Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The aim of this research is to conduct a pilot study of a prototype that provides feedback using theory-based motivating messages developed by older adults, in a context of every day activities that include both physical and social activities. The prototype mobile application integrated the messages, a motivational model, and a personalization module that selects motivational messages based on preferences, motivational profile and the situation. The four participating older adults used the application for planning and following up social and physical activities. They found the messages entertaining and appreciated the dialogues with the application. They used the dialogues primarily to reinforce their satisfaction regarding conducted activities and did not necessarily tell the truth about conduced activities in the interaction with the application. The results are preliminary, but give valuable implications for further development of the personalisation module towards more purposeful use of ambient information, and aspects to explore in future user studies.

  • 39.
    Janols, Rebecka
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Arbetsterapi.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    A method for co-designing theory-based behaviour change systems for health promotion2017Inngår i: Studies in Health Technology and Informatics, ISSN 0926-9630, E-ISSN 1879-8365, Vol. 235, s. 368-372Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A methodology was defined and developed for designing theory-based behaviour change systems for health promotion that can be tailored to the individual. Theories from two research fields were combined with a participatory action research methodology. Two case studies applying the methodology were conducted. During and between group sessions the participants created material and designs following the behaviour change strategy themes, which were discussed, analysed and transformed into a design of a behaviour change system. Theories in behavioural change and persuasive technology guided the data collection, data analyses, and the design of a behaviour change system. The methodology has strong emphasis on the target group's participation in the design process. The different aspects brought forward related to behaviour change strategies defined in literature on persuasive technology, and the dynamics of these are associated to needs and motivation defined in literature on behaviour change. It was concluded that the methodology aids the integration of theories into a participatory action research design process, and aids the analyses and motivations of design choices.

  • 40.
    Janols, Rebecka
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    A study on motivational messages for supporting seniors to increase physical activity and social participation2017Inngår i: ECCE '17: Proceedings of the European Conference on Cognitive Ergonomics, ACM Digital Library, 2017, s. 57-58Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The aim is to develop an adaptive computer-based intervention that gives seniors personalized support for increasing physical and social activity. The user-centered studies have been conducted. The results indicate that the seniors need to be categorized based on their preferences regarding a sub-set of messages.

  • 41.
    Janols, Rebecka
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap. Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för arbetsterapi.
    Sandlund, Marlene
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Lindgren, Helena
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
    Pettersson, Beatrice
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Older adults as designers of behavior change strategies to increase physical activity: report of a participatory design process2022Inngår i: Frontiers In Public Health, ISSN 2296-2565, Vol. 10, artikkel-id 988470Artikkel i tidsskrift (Fagfellevurdert)