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  • 251.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Perjons, Erik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Informationssystem.
    Effects from introduction of business process support systems and how they can be measured2007Konferensbidrag (Övrigt vetenskapligt)
  • 252.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Perjons, Erik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Preparing for the era of cloud computing: Towards a framework for selecting business process support services2012Ingår i: Enterprise, Business-Process and Information Systems Modeling: 13th International Conference, BPMDS 2012, 17th International Conference, EMMSAD 2012, and 5th EuroSymposium, held at CAiSE 2012, Gdańsk, Poland, June 25-26, 2012. Proceedings, Springer Berlin/Heidelberg, 2012, 16-30 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    The shift to the cloud computing creates new opportunities for the IT usage in business. New standard and customizable services that do not require high initial investment allow business people to choose services to support their business activities without involving technicians. Business process solutions providers are already moving their products to the cloud offering them as services. The question arises of how a business person, e.g. a department manager, can decide on which service suits best his/her needs. The paper investigates this issue in respect to the services that provide fully customizable operational support to business processes. The paper suggests a practical framework for defining requirements based on characteristics of the process to be supported by the service. The framework determines the needs of such capabilities as process flow support, shared spaces, team collaboration, etc., based on the high-level analysis of a process in question. The framework is aimed at serving as a basis for designing a practical methodology for selecting business process support services.

  • 253.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Perjons, Erik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Reviving Language/Action Perspective in the Era of Social Software: Research in Progress2012Ingår i: Emerging Topics in the Practice of Enterprise Modeling: 5th IFIP WG 8.1Working Conference, PoEM 2012 / [ed] Kurt Sandkuhl, Ulf Seigerroth, Janis Stirna, 2012Konferensbidrag (Refereegranskat)
    Abstract [en]

    Language/Action perspective (LAP) was introduced by Flores and Winograd and their associates in the 1980th. This perspective, which is based on the speech act theory, has been originally suggested as guidelines for designing information systems. Though LAP had some success in designing commercial systems, it had never become widespread as a basis for systems design. This paper suggests reviving LAP, however, not as a tool for system design, but as a tool for analysis of communication models of systems designed on some other principles than LAP. The paper is focused on modern systems of social software type in which communication is based on the usage of shared spaces. The paper is a research in progress report that presents the main ideas, a research plan, and preliminary results achieved in its first two steps: (1) testing LAP for analysis of one system with shared spaces architecture, and (2) classification of atomic communication acts typical for business processes. The long term goal of the research is to create practical recommendations for choosing an appropriate communication model for particular business needs.

  • 254.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Perjons, Erik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Using a Fractal Enterprise Model for Business Model Innovation2017Ingår i: BPMDS, 2017Konferensbidrag (Refereegranskat)
  • 255.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Perjons, Erik A
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Evaluating adequacy of business process modelling approaches2009Ingår i: Handbook of research on complex dynamic process management: techniques for adaptability in turbulent environments / [ed] Minhong Wang and Zhaohao Sun, Hershey, PA: IGI Global, 2009Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 256.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Perjons, Erik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Elias, Mturi
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Untangling the Dynamic Structure of an Enterprise by Applying a Fractal Approach to Business Processes2012Ingår i: The Practice of Enterprise Modeling: Proceedings / [ed] Kurt Sandkuhl, Ulf Seigerroth, Janis Stirna, Berlin/Heidelberg: Springer Berlin/Heidelberg, 2012, 61-75 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    A promising approach for analyzing and designing an enterprise is to consider it as a complex adaptive system (CAS) able to self-adjust to the changes in the environment. An important part of designing a CAS model is to untangle the dynamic structure of an enterprise. This paper presents a procedure for identifying all processes that exist in an enterprise as well as their interconnections. The procedure makes use of a number of process-assets and asset-processes archetypes. The first ones help to find out what assets are needed for a particular process, the second ones help to find out supporting processes that are needed to have each type of assets ready available for deployment. The procedure is based on the ideas of fractal organization where the same pattern is repeated on different levels. The uncovered dynamic structure of an enterprise can support strategic planning, change management, as well as discovering and preventing misbalances between its business processes. The paper also presents an example of applying the procedure to research activities of a university.

  • 257.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Perjons, Erik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Elias, Mturi
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Johannesson, Paul
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    A fractal enterprise model and its application for business development2017Ingår i: Software and Systems Modeling, ISSN 1619-1366, E-ISSN 1619-1374, Vol. 16, nr 3, 663-689 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper suggests a new type of enterprise models called fractal enterprise models (FEM), with accompanying methodological support for their design. FEM shows interconnections between the business processes in an enterprise by connecting them to the assets they use and manage. Assets considered in the model could be tangible (buildings, heavy machinery, etc.) and intangible (employees, business process definitions, etc.). A FEM model is built by using two types of patterns called archetypes: a process-assets archetype that connects a process with assets used in it, and an asset-processes archetype that connects an asset with processes aimed to manage this asset (e.g., hiring people, or servicing machinery). Alternating these patterns creates a fractal structure that makes relationships between various parts of the enterprise explicit. FEM can be used for different purposes, including finding a majority of the processes in an enterprise and planning business change or radical transformation. Besides discussing FEM and areas of its usage, the paper presents results from a completed project in order to test the practical usefulness of FEM and its related methodological support.

  • 258.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Perjons, Erik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Riaz Dar, Zakria
    Using Data-Centric Business Process Modeling for Discovering Requirements for Business Process Support Systems: Experience Report2013Ingår i: Enterprise, Business-Process and Information Systems Modeling BPMDS 2013: Proceedings / [ed] Selmin Nurcan et al., Springer Berlin/Heidelberg, 2013, 63-77 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    Building a process model is a natural part of the requirements engineering (RE) when creating requirements for a computerized system/service to support a business process. When the process in question is workflowable (i.e. a process in which the order and the flow of tasks/ operations/activities can be predefined), there are plenty of modeling techniques, notations and tools that can help in this undertaking. These techniques, however, are of little use for discovering requirements for support of non-workflowable processes in which the information artifacts created in the process (e.g. reports, lecture slides, budget documents) are of more importance than the flow of tasks/operations/activities. Other types of techniques, notations and tools are required in this case. This paper reports on a project of using a data-centric modeling approach supported by a computerized tool in RE. The goal of the project was to test whether the approach could be useful for the task of discovering requirements on a computerized system/service supporting the process, and which and how much of requirements could be captured using it. The process used in the test is a process of course preparation in the authors’ own department. The paper reports on the environment in which the project has been conducted, results achieved, and lessons learned.

  • 259.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Rogers, David
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    YASQLT – Yet Another SQL Tutor: A Pragmatic Approach2016Ingår i: Advances in Conceptual Modeling: ER 2016 Workshops, AHA, MoBiD, MORE-BI, MReBA, QMMQ, SCME, and WM2SP, Gifu, Japan, November 14–17, 2016, Proceedings / [ed] Sebastian Link, Juan C. Trujillo, Springer, 2016, 197-206 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    The paper describes an ongoing project of creating an automated assessment tool to help novice students learning SQL in a frame of an introductory database course. In difference to other tools of this kind, the project has chosen a pragmatic approach of focusing on catching common semantic errors, leaving syntax control to professional DBMS. Using agile system development, the project successfully completed two iterations, both of which were tested in practice with satisfactory results. The students appreciated the tool and would like to have similar tools for other subjects, including Relational Algebra, and Conceptual Modeling. The latter is planned for implementation in the near future. The tool is considered to be appropriate for Learning by Failure in the situation of large size classes and short courses.

  • 260.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Schmidt, Rainer
    Preface2016Ingår i: Enterprise, Business-Process and Information Systems Modeling: 17th International Conference, BPMDS 2016, 21st International Conference, EMMSAD 2016, Held at CAiSE 2016, Ljubljana, Slovenia, June 13-14,2016, Proceedings / [ed] Rainer Schmidt, Wided Guédria, Ilia Bider, Sérgio Guerreiro, 2016, V-VI s.Konferensbidrag (Övrigt vetenskapligt)
  • 261.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Söderberg, Oscar
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Becoming Agile in a Non-disruptive Way: Is It Possible?2016Ingår i: Proceedings of the 18th International Conference on Enterprise Information Systems / [ed] Slimane Hammoudi, Leszek Maciaszek, Michele M. Missikoff, Olivier Camp, José Cordeiro, SciTePress, 2016, Vol. 1, 294-305 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    Due to the increasing popularity of Agile Software Development (ASD), more software development teams are planning to transit to ASD. As ASD substantially differs from the traditional Software Development (TSD), there are a number of issues and challenges that needs to be overcome when transiting to ASD. One of the most difficult challenges here is acquiring an agile “mindset”. The question arises whether it is possible to acquire this mindset with the minimum disruption of an already established TSD process. The paper tries to answer this question by developing a non-disruptive method of transition to ASD, while using a knowledge transformation perspective to identify the main features of ASD mindset and how it differs from the one of TSD. To map the current mindset and plan the movement to the mindset that is more agile, the paper suggests using a process modelling technique that considers the development process as a socio-technical system with components that correspond to the pha ses of the development process. The method suggested in the paper has been designed in connection to a business case of a development team interested to transit to agility in a non-disruptive manner.

  • 262.
    Bider, Ilia
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Söderberg, Oscar
    Moving towards Agility in an Ordered Fashion2017Ingår i: ICEIS, 2017Konferensbidrag (Refereegranskat)
  • 263.
    Bin, Xiao
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Self-evolvable Knowledge-enhanced IoT Data Mobility for Smart EnvironmentsArtikel i tidskrift (Refereegranskat)
  • 264.
    Bin, Xiao
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Rahim, Rahmani
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Yuhong, Li
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Kanter, Theo
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Edge-based Interoperable Service-driven Information Distribution for Intelligent Pervasive ServicesIngår i: Pervasive and Mobile Computing, ISSN 1574-1192, E-ISSN 1873-1589Artikel i tidskrift (Refereegranskat)
  • 265. Biteus, Jonas
    et al.
    Lindgren, Tony
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Planning Flexible Maintenance for Heavy Trucks using Machine Learning Models, Constraint Programming, and Route Optimization2017Ingår i: SAE International Journal of Materials & Manufacturing, ISSN 1946-3979, E-ISSN 1946-3987, Vol. 10, nr 3, 306-315 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Maintenance planning of trucks at Scania have previously been done using static cyclic plans with fixed sets of maintenance tasks, determined by mileage, calendar time, and some data driven physical models. Flexible maintenance have improved the maintenance program with the addition of general data driven expert rules and the ability to move sub-sets of maintenance tasks between maintenance occasions. Meanwhile, successful modelling with machine learning on big data, automatic planning using constraint programming, and route optimization are hinting on the ability to achieve even higher fleet utilization by further improvements of the flexible maintenance. The maintenance program have therefore been partitioned into its smallest parts and formulated as individual constraint rules. The overall goal is to maximize the utilization of a fleet, i.e. maximize the ability to perform transport assignments, with respect to maintenance. A sub-goal is to minimize costs for vehicle break downs and the costs for maintenance actions. The maintenance planner takes as input customer preferences and maintenance task deadlines where the existing expert rule for the component has been replaced by a predictive model. Using machine learning, operational data have been used to train a predictive random forest model that can estimate the probability that a vehicle will have a breakdown given its operational data as input. The route optimization takes predicted vehicle health into consideration when optimizing routes and assignment allocations. The random forest model satisfactory predicts failures, the maintenance planner successfully computes consistent and good maintenance plans, and the route optimizer give optimal routes within tens of seconds of operation time. The model, the maintenance planner, and the route optimizer have been integrated into a demonstrator able to highlight the usability and feasibility of the suggested approach.

  • 266.
    Björck, Fredrik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Discovering Information Security Management2005Doktorsavhandling, monografi (Övrigt vetenskapligt)
    Abstract [en]

    This thesis is concerned with issues relating to the management of information security in organisations, motivated by the need for cost-efficient information security.

    It is based on the assumption that: in order to achieve cost-efficient information security, the point of departure must be knowledge about the empirical reality in which the management of information security takes place.

    The data gathering instruments employed are questionnaires with open-ended questions and unstructured research interviews. The empirical material is analysed, and conclusions are drawn following the principles of Grounded Theory. Data sources are professionals in the area of information security management, including information security consultants (n=13), certification auditors (n=8), and information security managers (n=8).

    The main contributions are: an integrated model illustrating the experts’ perceptions concerning the objectives, actors, resources, threats, and countermeasures of information security management; a framework for the evaluation, formation, and implementation of information security management systems; a new approach for the evaluation of information security in organisations; a set of success factors concerning the formation of information security management systems; and a problem inventory concerning the value and assessment of information security education and training.

  • 267.
    Björck, Fredrik
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Henkel, Martin
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Stirna, Janis
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Zdravkovic, Jelena
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Cyber Resilience – Fundamentals for a Definition2015Ingår i: New Contributions in Information Systems and Technologies: Volume 1 / [ed] Alvaro Rocha, Ana Maria Correia, Sandor Costanzo, Luis Paulo Reis., Springer, 2015, 311-316 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This short paper examines the concept of cyber resilience from an organizational perspective. Cyber resilience is defined as “the ability to continuously deliver the intended outcome despite adverse cyber events”, and this definition is systematically described and justified. The fundamental building blocks of cyber resilience are identified and analyzed through the contrasting of cyber resilience against cybersecurity with regards to five central characteristics.

  • 268.
    Björck, Fredrik J
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Institutional Theory: A New Perspective for Research into IS/IT Security2004Ingår i: Proceedings of the HICSS37, Big Island, Hawaii, 2004Konferensbidrag (Övrigt vetenskapligt)
  • 269. Björkqvist, Olof
    et al.
    Larsson, Aron
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Idefeldt, Jim
    Risk Assessment of New Pricing Strategies in the District Heating Market: A Case Study at Sundsvall Energi AB2010Ingår i: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 38, nr 5, 2171-2178 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The price structure of district heating has been no major scientific issue for the last decades in energy-related research. However, today trends in district heating pricing tend to move towards a more customer-oriented approach with predetermined prices under a longer periods, leading to a more complex price structure. If a district heating supplier offers district heating with predetermined prices in order to compete with similar electricity offers, the financial risk of the new price structure is significantly higher than the risk of an ordinary variable cost offer based on short-run marginal cost. In contrary to an electricity seller, the district heating company cannot transfer all of the risk of predetermined prices to the financial market, instead the company is thrown upon its own ability to handle the risk by, e.g., hedging its own energy purchase. However, all uncertainties cannot be coped with in this manner. Thus, there is a need for a methodology that can be used to estimate the financial risk of different price structures and to value different opportunities to reduce the risk. In this article, we propose a methodology, implemented in prototype software, to evaluate the risk associated with new price structures in district heating.

  • 270.
    Blåsjö, Mona
    et al.
    Stockholms universitet, Humanistiska fakulteten, Institutionen för svenska och flerspråkighet, Svenska/Nordiska språk.
    Hållsten, Stina
    Södertörns högskola.
    Karlström, Petter
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Knutsson, Ola
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Cerratto Pargman, Teresa
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Att skriva för att lära i digitala miljöer2014Ingår i: Resultatdialog 2014, Stockholm: Vetenskapsrådet , 2014, 109-119 s.Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 271.
    Blåsjö, Mona
    et al.
    Stockholms universitet, Humanistiska fakulteten, Institutionen för nordiska språk.
    Knutsson, Ola
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Cerratto-Pargman, Teresa
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Exploring the Design Space of Genre Pedagogy and Virtual Learning Environments2012Ingår i: Designs for Learning 2012: 3rd International Conference Exploring Learning Environments. Conference Proceedings, 2012, 75-77 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper explores the design space of genre pedagogy and virtual learning environments. This is done by examining the cornerstones of genre pedagogy and the main activities they give raise to, and how the activities are transformed when they are partly or completely moved from the classroom to virtual learning environments, and what implications for interaction design they give raise to.

  • 272. Bodén, Marine
    et al.
    Boström, Gustav
    Nyfjord, Jaana
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Security Engineering and eXtreme Programming: An Impossible Marriage?2004Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]
    Agile methods, such as eXtreme Programming (XP), have been criticised for being inadequate for the development of secure software. In this paper, we analyse XP from a security engineering standpoint, to assess to what extent the method can be used for development of security critical software. This is done by analysing XP in the light of two security engineering standards; the Systems Security Engineering-Capability Maturity Model (SSE-CMM) and the Common Criteria (CC). The result is that XP is more aligned with security engineering than one might think at first. However, XP also needs to be tailored to better support and to more explicitly deal with security engineering issues. Tailoring XP for secure software development, without removing the agility that is the trademark of agile methods, may be a solution that would make XP more compatible with current security engineering practices.
  • 273. Boella, Guido
    et al.
    Noriega, Pablo
    Pigozzi, Gabriella
    Verhagen, Harko
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Introduction to the special issue on NorMAS 20092013Ingår i: Journal of logic and computation (Print), ISSN 0955-792X, E-ISSN 1465-363X, Vol. 23, nr 2, 307-308 s.Artikel i tidskrift (Övrigt vetenskapligt)
  • 274. Boella, Guido
    et al.
    Pigozzi, Gabriella
    Singh, Munindar
    Verhagen, Harko
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Normative Multiagent Systems: Guest Editors’ Introduction2010Ingår i: Logic Journal of the IGPL, Vol. 18, nr 1, 1-3 s.Artikel i tidskrift (Refereegranskat)
  • 275. Boella, Guido
    et al.
    van der Torre, Leendert
    Verhagen, Harko
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Kommunikation och kognition.
    Introduction to Normative Multiagent Systems2007Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 276. Boella, Guido
    et al.
    van der Torre, Leendert
    Verhagen, Harko
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Introduction to Normative Multiagent Systems2006Ingår i: Computational and mathematical organization theory, ISSN 1381-298X, E-ISSN 1572-9346, Vol. 12, nr 2-3, 71-79 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This article introduces the research issues related to and definition of normative multiagent systems. It also describes the papers selected from NorMAS05 that are part of this double special issue and relates the papers to each other.

  • 277. Boella, Guido
    et al.
    van der Torre, Leendert
    Verhagen, Harko
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Kommunikation och kognition.
    Introduction to the special issue on normative multiagent systems2008Ingår i: Autonomous Agents and Multi-Agent Systems, Vol. 1, nr 1387-2532, 1-20 s.Artikel i tidskrift (Refereegranskat)
  • 278.
    Boella, Guido
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    van der Torre, Leendert
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Verhagen, Harko
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Kommunikation och kognition.
    Roles, an Interdisciplinary Perspective2007Ingår i: Applied ontology, Vol. 2, 81-88 s.Artikel i tidskrift (Refereegranskat)
  • 279.
    Boella, Guido
    et al.
    Universita di Torino, , Dipartimento di Informatica.
    van der Torre, Leendert
    University of Luxembourg, , Computer Science and Communication Research Unit.
    Verhagen, Harko
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Ten Challenges for Normative Multiagent Systems2008Ingår i: Programming Multi-Agent Systems, Programming Multi-Agent Systems , 2008Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this paper we discuss the shift from a legal to an interactionist view on normative multiagent systems, examples, and ten new challenges in this more dynamic setting.

  • 280. Boella, Guido
    et al.
    van der Torre, Leon
    Verhagen, Harko
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Introduction to Normative Multiagent Systems2005Ingår i: Proceedings of NorMAS2005, Guido Boella, Leendert van der Torre, and Harko Verhagen , 2005Konferensbidrag (Övrigt vetenskapligt)
  • 281. Boella, Guido
    et al.
    Verhagen, Harko
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Normative Multiagent Systems: An Introduction to Social Theory for MAS Researchers2004Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 282.
    Boeva, Veselka
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Ekenberg, Love
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    A transition logic for schemata conflicts2004Ingår i: Data & Knowledge Engineering, ISSN 0169-023X, E-ISSN 1872-6933, Vol. 51, nr 3, 277-294 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Conflict detection and analysis are of high importance, e.g., when integrating conceptual schemata, such as UML-Specifications, or analysing goal-fulfilment of sets of autonomous agents. In general, models for this introduce unnecessarily complicated frameworks with several disadvantages regarding semantics as well as complexity. This paper demonstrates that an important set of static and dynamic conflicts between specifications can be diagnosed using ordinary first-order modal logic. Furthermore, we show how the framework can be extended for handling situations when there are convex sets of probability measures over a state-space. Thus, representing specifications as conceptual schemata and using standard Kripke models of modal logic, augmented with an interval-valued probability measure, we propose instrumental definitions and procedures for conflict detection.

  • 283.
    Bohman, Samuel
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Civic Participation and Empowerment through Visualization2015Ingår i: Proceedings of SIGRAD 2015, June 1st and 2nd, Stockholm, Sweden / [ed] Christopher E. Peters and Lars Kjelldahl, Linköping: Linköping University Electronic Press, 2015, 20-23 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This article elaborates on the use of data visualization to promote civic participation and democratic engagement. The power and potential of data visualization is examined through a brief historical overview and four interconnected themes that provide new opportunities for electronic participation research: data storytelling, infographics, data physicalization, and quantified self. The goal is to call attention to this space and encourage a larger community of researchers to explore the possibilities that data visualization can bring.

  • 284.
    Bohman, Samuel
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Data Visualization: An Untapped Potential for Political Participation and Civic Engagement2015Ingår i: Electronic Government and the Information Systems Perspective: 4th International Conference, EGOVIS 2015, Valencia, Spain, September 1-3, 2015, Proceedings / [ed] Andrea Kö, Enrico Francesconi, Springer, 2015, 302-315 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This article elaborates on the use of data visualization to promote a more informed and engaged participation in civic and democratic life. First, it outlines the main constraints and challenges in electronic participation research and concludes that the conventional deliberative approach to political participation has been impeding civic engagement. Then, through a couple of recent examples and a brief historical overview, it examines the power of data visualization. Following this, it explores the democratization of data visualization through four interconnected themes that provide new opportunities for political participation and civic engagement research: data storytelling, infographics, data physicalisation, and the quantified self. The goal is to call attention to this space and encourage a larger community of researchers to explore the possibilities that data visualization can bring.

  • 285.
    Bohman, Samuel
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Information Technology in eParticipation Research: A Word Frequency Analysis2014Ingår i: Electronic Participation: Proceedings, Springer Berlin/Heidelberg, 2014, 78-89 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    Recent literature and project reviews suggest information technology is inadequately reflected in eParticipation research. This study uses text search queries to investigate the occurrence of 60 technology categories in a bibliographic database consisting of over a thousand research articles. The results show that eParticipation research have overwhelmingly focused on websites and discussion forums as the main technologies under study. Many other technologies that are frequently mentioned in overview articles as being part of eParticipation have received relatively scant attention in actual research. This article presents findings that may be useful in broadening and deepening the field’s treatment of technology.

  • 286.
    Bohman, Samuel
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Hansson, Henrik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Mobini, Pooyeh
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Online participation in higher education decision-making: a mixed methods study of the MyUniversity EU-project2014Ingår i: eJournal of eDemocracy and Open Government, ISSN 2075-9517, Vol. 6, 267-285 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This article considers online participation in higher education decision-making using the MyUniversity EU project as a case study. MyUniversity was a pilot designed to provide European universities with a web-based system to empower and involve students and other members of the academic community in the Bologna Process. Thirteen universities in Spain, Slovakia, Bulgaria, and Lithuania participated in trials. The study uses data collection methods from across the quantitative and qualitative spectrum: web analytics, online surveys, key performance indicators, interviews, focus groups, participant observation, document studies, and usability evaluations. The results are represented by 10 themes: project design, participation, functionality and usability, impact on decision-making, privacy and trust, institutional resistance, motivational factors, the political, economic, and sociocultural context, language barriers, and moderation and framing. The article ends with a discussion based on the results, including recommendations for future research.

  • 287.
    Bohman, Samuel
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Kalinina, Maria
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Larsson, Aron
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Trade-off in statistical design process2012Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    The design and planning of a statistical survey can be regarded as a complex decision process involving multiple stakeholders and a diverse set of users. The process involves finding a balance between statistical quality, burden on respondents and costs. Our research is aimed towards developing a prototype system consisting of computational core based on the combination of multi-objective optimization, multi-criteria analysis, and a user-friendly interface. The overall objective of the research is to maximize statistical quality while minimizing the burden on respondents and costs.

  • 288. Boldt, Martin
    et al.
    Nohlberg, Marcus
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Phishing with Gifts as Bait: Measurement and Analysis of Phishing Attacks within a University EnvironmentManuskript (Övrigt vetenskapligt)
  • 289.
    Boman, Magnus
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Data- och Systemvetenskap. Programvaruutveckling.
    The Joy of Mesh2008Ingår i: British Medical Journal, Vol. 337, a2500- s.Artikel i tidskrift (Refereegranskat)
  • 290.
    Boman, Magnus
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Ghaffar, Asim
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Liljeros, Fredrik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Sociologiska institutionen.
    Stenhem, Mikael
    Social network visualization as a contract tracing tool2006Ingår i: Proceedings First International Work Shop on Agent Technology for Disaster Management, Nick Jennings , 2006, 131-133 s.Konferensbidrag (Refereegranskat)
  • 291.
    Boman, Magnus
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Holm, Einar
    Multi-agent systems, time geography, and microsimulations2004Ingår i: Systems Approaches and their Application / [ed] Olsson, M-O. and Sjöstedt, G., Boston: Kluwer Academic , 2004Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 292.
    Boman, Magnus
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Johansson, Stefan
    Modeling Epidemic Spread in Synthetic Populations - Virtual Plagues in Massively Multiplayer Online Games2007Ingår i: Proceedings of Digital Games Research Association (DiGRA) 2007, 2007, 357-361 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    A virtual plague is a process in which a behavior-affecting property spreads among characters in a Massively Multiplayer Online Game (MMOG). The MMOG individuals constitute a synthetic population, and the game can be seen as a form of interactive executable model for studying disease spread, albeit of a very special kind. To a game developer maintaining an MMOG, recognizing, monitoring, and ultimately controlling a virtual plague is important, regardless of how it was initiated. The prospect of using tools, methods and theory from the field of epidemiology to do this seems natural and appealing. We will address the feasibility of such a prospect, first by considering some basic measures used in epidemiology, then by pointing out the differences between real world epidemics and virtual plagues. We also suggest directions for MMOG developer control through epidemiological modeling. Our aim is understanding the properties of virtual plagues, rather than trying to eliminate them or mitigate their effects, as would be in the case of real infectious disease.

  • 293.
    Boman, Magnus
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Sandin, Anna
    Implementing an agent trade server2006Ingår i: Decision Support Systems, ISSN 0167-9236, E-ISSN 1873-5797, Vol. 42, nr 1, 318-327 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    An experimental server for stock trading autonomous agents is presented and made available, together with an agent shell for swift development. The server, written in Java, was implemented as proof-of-concept for an agent trade server for a real financial exchange.

  • 294. Boonman, Hettie J.
    et al.
    Siddiqui, Afzal S.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. University College London, UK; HEC Montréal, Canada.
    Capacity optimization under uncertainty: The impact of operational time lags2017Ingår i: European Journal of Operational Research, ISSN 0377-2217, E-ISSN 1872-6860, Vol. 262, nr 2, 660-672 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Time lags in switching operational modes are typical in the manufacturing and power sectors but are not treated in most real options models. In this paper, we consider a firm that has the opportunity to suspend and to resume production infinitely many times subject to a time lag after each startup decision. We contribute to the literature by allowing the firm to determine its level of installed capacity in conjunction with its optimal investment timing. We find that an increase in the length of the time lag results in an increase in the optimal capacity level. Capacity optimization also interacts with the length of the time lag to affect investment timing and the triggers to suspend and resume production, thereby weakening the result about hysteresis from a standard real options model. Under the assumption of a fixed level of capacity, a longer lag speeds up the decision to resume operations due to a positive upside to the revenue but delays the suspension of operations. By contrast, with capacity optimization, a longer time lag results in a larger capacity choice, which can indirectly delay the investment decision and the timing to resume operations. This indirect effect dominates when the level of market uncertainty is low and the time lag is initially small.

  • 295.
    Borg Gyllenbäck, Katarina
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Boman, Magnus
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Narrative Bridging2011Ingår i: Design Computing and Cognition ’10 / [ed] John S. Gero, Berlin: Springer Verlag , 2011, 525-544 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    In the design of interactive media, various forms of intuitive practice come into play. It might prove tempting to use templates and strong narrative structures instead of developing the narrative directly for interactive media. This leads towards computer implementation too swiftly. The narrative bridging method focuses on the initial design phase, in which the conceptual modeling takes place. The purpose is to provide designers with a non-intrusive method that supports the design process without interfering with its creative elements. The method supports the sentient construction of digital games with a narrative, with the ultimate goal of enhancing the player’s experience. A prototype test served as a first evaluation, and two games from that test are showcased here for the purpose of illustrating the hands-on use of narrative bridging. The test demonstrated that the method could aid time-constrained design, and in the process detect inconsistencies that could prevent the design team from making improvements. The method also provided teams with a shared vocabulary and outlook.

  • 296. Borking, Kjell
    et al.
    Danielson, Mats
    Davies, Guy
    Ekenberg, Love
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Idefeldt, Jim
    Larsson, Aron
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Transcending Business Intelligence2011Bok (Övrigt vetenskapligt)
  • 297. Borking, Kjell
    et al.
    Danielson, Mats
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Ekenberg, Love
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Idefeldt, Jim
    Larsson, Aron
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Bortom Business Intelligence2009 (uppl. 1)Bok (Övrigt vetenskapligt)
  • 298. Bornemann, Leon
    et al.
    Lecerf, Jason
    Papapetrou, Panagiotis
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    STIFE: A Framework for Feature-based Classification of Sequences of Temporal Intervals2016Ingår i: Discovery Science: 19th International Conference, DS 2016, Bari, Italy, October 19–21, 2016, Proceedings / [ed] Toon Calders, Michelangelo Ceci, Donato Malerba, Springer, 2016, 85-100 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this paper, we study the problem of classification of sequences of temporal intervals. Our main contribution is the STIFE framework for extracting relevant features from interval sequences to build feature-based classifiers. STIFE uses a combination of basic static metrics, shapelet discovery and selection, as well as distance-based approaches. Additionally, we propose an improved way of computing the state of the art IBSM distance measure between two interval sequences, that reduces both runtime and memory needs from pseudo-polynomial to fully polynomial, which greatly reduces the runtime of distance based classification approaches. Our empirical evaluation not only shows that STIFE provides a very fast classification time in all evaluated scenarios but also reveals that a random forests using STIFE achieves similar or better accuracy than the state of the art k-NN classifier.

  • 299. Bornoe, Nis
    et al.
    Barkhuus, Louise
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    TagPad: Supporting Field Interviews and Analysis2013Ingår i: iConference 2013 Proceedings / [ed] Linda Schamber, iShools , 2013, 316-325 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    The area of cyberinfrastructures has looked extensively at research within the natural sciences, however, the social sciences have been largely overlooked in terms of novel data collection and analysis systems. We developed a probe tool, TagPad, to look at the process for social science data collection through interviews and surveys. Our research participants found that TagPad facilitated structuring of interviews but we also found that the setting in which the interview takes place is essential to the success of using this particular tool. We conclude suggesting future designs of social science research tools.

  • 300. Boström, Gustav
    et al.
    Henkel, Martin
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Nyfjord, Jaana
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Aspects in the Agile Toolbox2005Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]
    The introduction of agile methodologies promises faster time to market and a flexible, customer-driven software development process. The flexibility with regards to requirements can however also be a risk if new non-functional requirements need to be implemented late in a software development project. In this article we argue that aspect-oriented programming is a technique that can mitigate this risk by providing the means to deal with non-functional, crosscutting requirements. The suggested solution is illustrated by an example where new requirements in the form of quality of service demands on an existing service are implemented by using aspect orientated programming.
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