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Crnkovic I.,Mlardalen University | Stafford J.,Tufts University | Szyperski C.,Microsoft
IEEE Software | Year: 2011

In the last decade, software components have been of an increased interest in software engineering community. The appealing concepts of building systems from existing components and reusing components, as well as the appearance of new technologies that enabled the separation of component development from system development, attracted researchers and industry to develop and apply principles of component-based software engineering. Today, these concepts are understood as very important in software development, and are a standard part of software engineering approaches. © 2011 IEEE. Source

Lindstedt H.,Uppsala University | Grann M.,Karolinska Institutet | Soderlund A.,Mlardalen University | Soderlund A.,Uppsala University
Scandinavian Journal of Occupational Therapy | Year: 2011

Persons detained as mentally disordered offenders need support for transition from care to community life. Few systematic studies have been completed on the outcomes of standard forensic care. The aim was to investigate the target group's life conditions and daily occupations one year after care. In a follow-up design occupational performance (OP) and social participation (SP) were investigated at two time points. After informed consent 36 consecutively recruited participants reported OP using the Capability to Perform Daily Occupations, Self-Efficacy Scale, Importance scale, and Allen Cognitive Level Screen. SP was measured with the Manchester Short Assessment of Quality of Life, and Interview Schedule for Social Interaction. After one year 24 participants were still incarcerated, 11 were conditionally released, and one participant was discharged. The group were generally more satisfied and engaged in daily occupations than at admission. The study's attrition rate, 51%, is discussed. The conclusion and the clinical implications indicate that the target group need early, goal directed interventions in OP and SP for alterations in daily occupations. Furthermore, to increase the knowledge base concerning mentally disordered offenders, studies with research designs that have the potential to uncover changes in daily occupation and other measures for this target group are necessary. © Informa Healthcare. Source

Niazi M.F.,Turku Center for Computer Science | Seceleanu T.,Mlardalen University | Tenhunen H.,Turku Center for Computer Science
Proceedings - IEEE International SOC Conference, SOCC 2010 | Year: 2010

We present here a model-driven approach for the generation of low-level control code for the arbiters, to support application implementation and scheduled execution on a multi-core segmented bus platform, SegBus. The approach considers Model-Driven Architecture as a key to model the application at two different abstraction levels, namely as Packet-Synchronous Dataflow and Platform Specific Model, using the SegBus platform's Domain Specific Language. Both models are transformed into Extensible Markup Language schemes, and then utilized by an emulator program to generate the application-dependent VHDL code, the so-called snippets. The obtained code is inserted in a specific section of the platform arbiters. We present an example of a simplified stereo MP3 decoder where the methodology is employed to generate the control code of arbiters. © 2010 IEEE. Source

Bashir S.,Mohammad Ali Jinnah University | Afzal W.,Mlardalen University | Baig A.R.,Imam Muhammad ibn Saud Islamic University
Applied Soft Computing Journal | Year: 2016

As social media and e-commerce on the Internet continue to grow, opinions have become one of the most important sources of information for users to base their future decisions on. Unfortunately, the large quantities of opinions make it difficult for an individual to comprehend and evaluate them all in a reasonable amount of time. The users have to read a large number of opinions of different entities before making any decision. Recently a new retrieval task in information retrieval known as Opinion-Based Entity Ranking (OpER) has emerged. OpER directly ranks relevant entities based on how well opinions on them are matched with a user's preferences that are given in the form of queries. With such a capability, users do not need to read a large number of opinions available for the entities. Previous research on OpER does not take into account the importance and subjectivity of query keywords in individual opinions of an entity. Entity relevance scores are computed primarily on the basis of occurrences of query keywords match, by assuming all opinions of an entity as a single field of text. Intuitively, entities that have positive judgments and strong relevance with query keywords should be ranked higher than those entities that have poor relevance and negative judgments. This paper outlines several ranking features and develops an intuitive framework for OpER in which entities are ranked according to how well individual opinions of entities are matched with the user's query keywords. As a useful ranking model may be constructed from many ranking features, we apply learning to rank approach based on genetic programming (GP) to combine features in order to develop an effective retrieval model for OpER task. The proposed approach is evaluated on two collections and is found to be significantly more effective than the standard OpER approach. © 2015 Elsevier B.V. Source

Hedberg D.,Royal Swedish Academy Of Sciences | Kullander S.,Royal Swedish Academy Of Sciences | Kullander S.,Uppsala University | Frank H.,Royal Swedish Academy Of Sciences | Frank H.,Mlardalen University
Ambio | Year: 2010

During 1920 October 2009, the Royal Swedish Academy of Sciences arranged the international symposium Energy 2050 in Stockholm. The symposium was held in association with the Swedish EU presidency in autumn 2009. Internationally renowned scientists assessed the energy issue in a broad perspective, with particular emphasis on the possibilities of a fossil-free future. The symposium focused on key topics emanating from the in-depth energy studies carried through by the Academs Energy Committee since 2005. The world community is facing a challenge of historic proportions to define a new energy paradigm based on fossil-energy substitutes. This article gives an overview of the current global energy situation (2007) and of the technologies which have the major potential for supplying energy up to year 2050 without jeopardizing the CO2 emission targets. © Royal Swedish Academy of Sciences 2010. Source

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