766 research outputs found

    Dagstuhl News January - December 2007

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    "Dagstuhl News" is a publication edited especially for the members of the Foundation "Informatikzentrum Schloss Dagstuhl" to thank them for their support. The News give a summary of the scientific work being done in Dagstuhl. Each Dagstuhl Seminar is presented by a small abstract describing the contents and scientific highlights of the seminar as well as the perspectives or challenges of the research topic

    Proceedings of the 5th International Workshop on Reconfigurable Communication-centric Systems on Chip 2010 - ReCoSoC\u2710 - May 17-19, 2010 Karlsruhe, Germany. (KIT Scientific Reports ; 7551)

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    ReCoSoC is intended to be a periodic annual meeting to expose and discuss gathered expertise as well as state of the art research around SoC related topics through plenary invited papers and posters. The workshop aims to provide a prospective view of tomorrow\u27s challenges in the multibillion transistor era, taking into account the emerging techniques and architectures exploring the synergy between flexible on-chip communication and system reconfigurability

    Mining a Small Medical Data Set by Integrating the Decision Tree and t-test

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    [[abstract]]Although several researchers have used statistical methods to prove that aspiration followed by the injection of 95% ethanol left in situ (retention) is an effective treatment for ovarian endometriomas, very few discuss the different conditions that could generate different recovery rates for the patients. Therefore, this study adopts the statistical method and decision tree techniques together to analyze the postoperative status of ovarian endometriosis patients under different conditions. Since our collected data set is small, containing only 212 records, we use all of these data as the training data. Therefore, instead of using a resultant tree to generate rules directly, we use the value of each node as a cut point to generate all possible rules from the tree first. Then, using t-test, we verify the rules to discover some useful description rules after all possible rules from the tree have been generated. Experimental results show that our approach can find some new interesting knowledge about recurrent ovarian endometriomas under different conditions.[[journaltype]]國外[[incitationindex]]EI[[booktype]]紙本[[countrycodes]]FI

    Early growth technology analysis : case studies in solar energy and geothermal energy

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    Thesis (S.M. in Technology and Policy)--Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2010.Cataloged from PDF version of thesis.Includes bibliographical references (p. 85-87).Public and private organizations try to forecast the future of technological developments and allocate funds accordingly. Based on our interviews with experts from MIT's Entrepreneurship Center, Sloan School of Management, and IBM, and review of literature, we found out that this important fund allocation process is dominated by reliance on expert opinions, which has important drawbacks alongside its advantages. In this Thesis, we introduce a data-driven approach, called early growth technology analysis, to technology forecasting that utilizes diverse information sources to analyze the evolution of promising new technologies. Our approach is based on bibliometric analysis, consisting of three key steps: extraction of related keywords from online publication databases, determining the occurrence frequencies of these keywords, and identifying those exhibiting rapid growth. Our proposal goes beyond the theoretical level, and is embodied in software that collects the required inputs from the user through a visual interface, extracts data from web sites on the fly, performs an analysis on the collected data, and displays the results. Compared to earlier software within our group, the new interface offers a much improved user experience in performing the analysis. Although these methods are applicable to any domain of study, this Thesis presents results from case studies on the fields of solar and geothermal energy. We identified emerging technologies in these specific fields to test the viability of our results. We believe that data-driven approaches, such as the one proposed in this Thesis, will increasingly be used by policy makers to complement, verify, and validate expert opinions in mapping practical goals into basic/applied research areas and coming up with technology investment decisions.by Ayse Kaya Firat.S.M.in Technology and Polic

    Variations and Application Conditions Of the Data Type »Image« - The Foundation of Computational Visualistics

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    Few years ago, the department of computer science of the University Magdeburg invented a completely new diploma programme called 'computational visualistics', a curriculum dealing with all aspects of computational pictures. Only isolated aspects had been studied so far in computer science, particularly in the independent domains of computer graphics, image processing, information visualization, and computer vision. So is there indeed a coherent domain of research behind such a curriculum? The answer to that question depends crucially on a data structure that acts as a mediator between general visualistics and computer science: the data structure "image". The present text investigates that data structure, its components, and its application conditions, and thus elaborates the very foundations of computational visualistics as a unique and homogenous field of research. Before concentrating on that data structure, the theory of pictures in general and the definition of pictures as perceptoid signs in particular are closely examined. This includes an act-theoretic consideration about resemblance as the crucial link between image and object, the communicative function of context building as the central concept for comparing pictures and language, and several modes of reflection underlying the relation between image and image user. In the main chapter, the data structure "image" is extendedly analyzed under the perspectives of syntax, semantics, and pragmatics. While syntactic aspects mostly concern image processing, semantic questions form the core of computer graphics and computer vision. Pragmatic considerations are particularly involved with interactive pictures but also extend to the field of information visualization and even to computer art. Four case studies provide practical applications of various aspects of the analysis

    Proceedings of the Inaugural Meeting ofAIS SIGPrag

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    The Special Interest Group on Pragmatist IS Research (SIGPrag) was approved by the Association for InformationSystems (AIS) council at its June 2008 meeting in Gallway. The motivation for this initiative is the growingrecognition of the importance of theorizing the IT artifact and its organizational and societal context from apragmatic and action-oriented perspective. SIGPrag\u27s mission is to provide a much-needed centre of gravity and tofacilitate exchange of ideas and further development of this area of IS scholarship.In summary, pragmatist IS research rests on the following set of assumptions: * Human life is a life of activity.* Humans do things that effect changes in their environment and/or within themselves.* Doing permeates thinking, conceptualizations and language use.* Human consciousness is a practical one that is in constant interplay with interventive, investigative, andevaluative actions.* Practical consciousness is formed by experience from previous actions and participation in social contexts.* IT and information systems are fundamentally symbolic language systems.* Linguistically expressed collective presuppositions, norms and categories (such as those embedded in ITand information systems) serve human activity and life.* The true value of IT and information systems lies in their potential to support human communication andcollaboration central to human activity and life.For more information about SIGPrag, its mission and current activities, please visit http://www.sigprag.org/The inaugural meeting of SIGPrag is to be held in Paris on Dec 14, 2008, in conjunction with the InternationalConference on Information Systems (ICIS). The meeting will consist of two parts, a scientific meeting and abusiness meeting. For the scientific meeting a call for position papers was issued in the summer of 2008, whichresulted in the following papers being selected for presentation:• What Kind of Pragmatism in Information Systems Research? by Göran Goldkuhl.• Pragmatic Approach in IS Projects Grounded on Recognised Frameworks by Raija Halonen.• Co-Design as Social Constructive Pragmatism by Mikael Lind, Ulf Seigerroth, Olov Forsgren, and AndersHjalmarsson.• Pragmatism and Information Systems (IS): Neurophilosophical approach by Garikoitz Lerma Usabiagaand Francesc Miralles.• Sustainability Communication: A role for IT and IS in relating business and Society by Mark Aakhus andPaul Ziek.• Managing Ambiguity while Reducing Uncertainty by Gianni Jacucci and Mike Martin.• A Pragmatic Conception of Service Encounters by Mikael Lind and Nicklas Salomonson.• Making the Web More Pragmatic: Exploring the Potential Of Some Pragmatic Concepts For IS ResearchAnd Development by Jens Allwood and Mikael Lind.• Introducing Human in Complex System: A Cognitive Pragmatics Based Model by G. Lortal.• The Pragmatic Web: An Application View by Mareike Schoop.• Design Research from a Communicative Perspective: How to Design Things with Words by Hans Weigand.• Representation and Correspondence: On the Validity of the Representation Assumption in InformationSystem Design by Pär J. Ågerfalk and Owen Eriksson.• Habermas’ theory in action by Jan L.G. Dietz.• Challenges to Information Systems Development by Roland Kaschek.The idea behind this inaugural meeting was to bring together people that share an affinity with pragmatist ISresearch and to initiate a scientific discussion about the role of pragmatist research in IS. We certainly hope that thisdiscussion will continue over the years to come. The papers are freely available for download athttp://www.sigprag.org
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