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International Conference on Next Generation Web Services Practices (NWeSP)

作者： Peter Bartalos Mariá Bielikova Institute of Informatics and Software Engineering Faculty of Informatics and Information Technologies Slovak University of Technology Slovakia

Web service chaining forms one of the basic operation during Web service composition. To decide whether services can be chained, semantic matching between the I/O is usually evaluated. In this paper we propose an approach considering possible adaptation of output data before it is consumed as input by other service. We also define the corresponding rules based on which it is evaluated if the chaining is possible or not. Moreover, we deal also with the affect on workflow and service description, and their execution.

关键词： Web services informatics Semantic Web Computational modeling software engineering Information technology Research and development Contracts Engines User interfaces

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Fast and Scalable Semantic Web Service Composition Approach Considering Complex Pre/Postconditions

Fast and Scalable Semantic Web Service Composition Approach ...

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IEEE World Congress on Services (SERVICES)

作者： Peter Bartalos Maria Bieliková Institute of Informatics and Software Engineering Faculty of Informatics and Information Technologies Slovak University of Technology Slovakia

The process of semantic web service composition arranges several web services into one composite service to realize complex workflows with an exploitation of semantics. This paper proposes an approach to automatic semantic web service composition. Its advantage is good scalability regarding the complexity of user constraints and pre/post conditions. Based on these conditions it propagates the value restrictions constraint from the user goal through the overall composite service. The resulting plan depicts all the possible branches of the workflow leading to a goal. This includes the automatic generation of the conditions deciding which branch will be chosen during the execution. Finally, our approach exploits available data which can be used as input parameters for web services. If these are not offered, it searches for a web service producing them.

关键词： Semantic Web Web services Scalability informatics Automation Crisis management Accidents software engineering Information technology Research and development

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Towards More Effective Support of Service Composition: Utilizing AI-planning, Semantics and User's Assistance

Towards More Effective Support of Service Composition: Utili...

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International Conference on Next Generation Web Services Practices (NWeSP)

作者： Viera Rozinajova Michal Kasan Pavol Navrat Institute of Informatics and Software Engineering Faculty of Informatics and Information Technologies Slovak University of Technology Bratislava Slovakia

There are various approaches to service composition - some of them mainly based on AI planning. Although they offer relatively good results, in some cases they are not sophisticated enough to solve real problems. We identified some problems with automatic composition. Our belief is that the natural way to improve these techniques is to include user into the process of composing services. The goal of this paper is to present a new way of combining AI approaches incorporating also user assistance to create a meaningful plan. We shall also examine benefits of proposed combination. To demonstrate advantages of our approach we designed and implemented system performing Web service composition.

关键词： Web services Artificial intelligence Service oriented architecture Information systems software agents Humans informatics State-space methods software engineering Information technology

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On using of random access machine simulators in teaching of theoretical computer science 09

On using of random access machine simulators in teaching of ...

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International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing, CompSysTech'09

作者： Chudá, Daniela Nehéz, Martin Čerňanský, Michal Institute of Informatics and Software Engineering Faculty of Informatics and Information Technology Slovak University of Technology Ilkovičova 3 842 16 Bratislava 5 Slovakia Department of Information Technologies VSM School of Management City University of Seattle Bezručova 64 911 01 Trenčín Slovakia Panónska cesta 17 Bratislava 851 04 Slovakia Institute of Applied Informatics Faculty of Informatics and Information Technology Slovak University of Technology Ilkovičova 3 842 16 Bratislava 5 Slovakia

ISBN: (纸本)9781605589862

An objective of this paper is to present experiences with teaching of an abstract computational model Random Access Machine (RAM) as a part of the theoretical computer science course. A possibility of using simulation tools of RAM in such a teaching process are discussed as well. Key features and requirements of well designed RAM simulators are indicated. Our experiences with teaching process with RAM simulators at our university are also reported in this paper. © 2009 ACM.

关键词： Simulators

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Meeting Report: BioSharing at ISMB 2010

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Standards in genomic sciences 2010年第3期3卷 254-8页

作者： Dawn Field Susanna Sansone Edward F Delong Peter Sterk Iddo Friedberg Pascale Gaudet Susanna Lewis Renzo Kottmann Lynette Hirschman George Garrity Guy Cochrane John Wooley Folker Meyer Sarah Hunter Owen White Brian Bramlett Susan Gregurick Hilmar Lapp Sandra Orchard Philippe Rocca-Serra Alan Ruttenberg Nigam Shah Chris Taylor Anne Thessen Centre for Ecology & Hydrology Wallingford UK Oxford e-Research Centre University of Oxford Oxford UK Department of Biological Engineering Massachusetts Institue of Technology Cambridge USA Department of Microbiology Miami University Oxford USA Department of Computer Science and Software Engineering Miami University Oxford USA Swiss Institute of Bioinformatics Geneva 4 Switzerland Lawrence Berkeley National Laboratory Berkeley USA Microbial Genomics Group Max Planck Institute for Marine Microbiology & Jacobs University Bremen Bremen Germany Information Technology Center The MITRE Corporation Bedford USA Department of Microbiology and Molecular Genetics Michigan State University East Lansing USA European Molecular Biology Laboratory (EMBL) Outstation European Bioinformatics Institute (EBI) Cambridge UK University of California San Diego La Jolla USA Argonne National Laboratory Argonne USA Institute for Genome Sciences University of Maryland School of Medicine Baltimore USA Lux Bio Group Portland USA Biological Systems Science Division Department of Energy Washington DC USA National Evolutionary Synthesis Center (NESCent) Durham USA Science Commons c/o Massachusetts Institute of Technology Computer Science and Artificial Intelligence Laboratory Cambridge USA Stanford Center for Biomedical Informatics Research Stanford USA Marine Biological Laboratory USA

This report summarizes the proceedings of the one day BioSharing meeting held at the Intelligent Systems for Molecular Biology (ISMB) 2010 conference in Boston, MA, USA This inaugural BioSharing event was hosted by the Genomic Standards Consortium as part of its M3 & BioSharing special interest group (SIG) workshop. The BioSharing event included invited talks from a range of community leaders and a panel discussion at the end of the day. The panel session led to the formal agreement among community leaders to join together to promote cross-community knowledge exchange and collaborations. A key focus of the newly formed Biosharing community will be linking up resources to promote real-world data sharing (virtuous cycle of data) and supporting compliance with data policies through the creation of a one-stop-portal of information. Further information about the newly established BioSharing effort can be found at http://***.

关键词： Community Leader Funding Agency Special Interest Group Panel Discussion Standardization Effort

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Web search engine working as a bee hive

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Web Intelligence and Agent Systems 2008年第4期6卷 441-452页

作者： Navrat, Pavol Kovacik, Martin Ezzeddine, Anna Bou Rozinajova, Viera Slovak University of Technology Faculty of Informatics and Information Technologies Institute of Informatics and Software Engineering Ilkovicova 3 SK-842 16 Bratislava Slovakia

A new approach to web search that is based on a bee hive metaphor is presented. We proposed a modified model of a bee hive. Our model comprises of a dance floor, an auditorium, and a dispatch room. We have shown that the model is a true model of a bee hive in the sense it simulates several kinds of its typical behaviour. However, more importantly it is a simple model that describes some processes taking place in web search. Our model incorporates also several kinds of uncertainty. Experiments show that uncertainty increases robustness of the search and makes it actually more efficient. © 2008 - IOS Press and the authors. All rights reserved.

关键词： Recommender systems

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Collaborative multi-paradigm exploratory search

Collaborative multi-paradigm exploratory search

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Hypertext 2008 Workshop on Collaboration and Collective Intelligence 2008, WebScience'08

作者： Tvarozek, Michal Bieliková, Mária Institute of Informatics and Software Engineering Slovak University of Technology llkovicova 3 842 16 Bratislava Slovakia

New challenges for advanced web search interfaces and visualization tools arise as user needs shift from traditional lookup tasks towards more open ended search activities collectively described as exploratory search. Exploratory search opens new possibilities for employing social aspects for effective information retrieval. We facilitate exploratory search by providing users with an integrated search and navigation interface combining three search paradigms - full text search, view-based (faceted) search and content-based (query-by-example) search. Full text search is used for both domain data and metadata lookup, view-based search allows users to further refine/filter the respective result set, while content-based search orders or biases the results based on their similarity to a given set of sample results. Copyright 2008 ACM.

关键词： Visualization

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Personalized view-based search and visualization as a means for deep/semantic web data access 08

Personalized view-based search and visualization as a means ...

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17th International Conference on World Wide Web 2008, WWW'08

作者： Tvarozek, Michal Bieliková, Mária Institute of Informatics and Software Engineering Slovak University of Technology Ilkovicova 3 842 16 Bratislava Slovakia

ISBN: (纸本)9781605580852

Effective access to and navigation in information stored in deep Web ontological repositories or relational databases has yet to be realized due to issues with usability of user interfaces and the overall scope and complexity of information as well as the nature of exploratory user tasks. We propose the integration and adaptation of novel navigation and visualization approaches to faceted browsing such as visual depiction of facets and restrictions, visual navigation in (clusters of) search results and graph like exploration of individual search results' properties.

关键词： Visualization

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Hyperlinks visualization using social bookmarking 08

Hyperlinks visualization using social bookmarking

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HYPERTEXT'08: 19th ACM Conference on Hypertext and Hypermedia 2008, HT'08

作者： Tomša, Marek Bieliková, Mária Institute of Informatics and Software Engineering Faculty of Informatics and Information Technologies Slovak University of Technology Ilkovicova 3 842 16 Bratislava Slovakia

ISBN: (纸本)9781595939852

We present a method for navigation support by visualization of actual web page context. We browse and incrementally visualize a graph representing an abstraction of web navigation where nodes represent web pages and edges represent relationships between them expressed either by explicit links (one page linking to another through the content) or implied relationships (relevant pages several clicks away). We proposed several metrics for edge relevance evaluation. In the metrics, existing metadata in form of tags associated with bookmarks offered by collaborative social bookmarking sites is employed and user preferences represented by their tag usage are taken into account.

关键词： Websites

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The effect of entity generalization on software functional sizing: A case study

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9th International Conference on Product-Focused software Process Improvement, PROFES 2008

作者： Turetken, Oktay Demirors, Onur Gencel, Cigdem Ozcan Top, Ozden Ozkan, Baris Informatics Institute Middle East Technical University Ankara 06531 Turkey Department of Systems and Software Engineering Blekinge Institute of Technology

ISBN: (纸本)3540695648

In this paper we discuss a specific result derived from a multiple case study. The case study involved implementation of IFPUG Function Point Analysis and COSMIC Functional Size Measurement methods in an innovative military software development project by different groups of experts. Application of these methods in a case that provides a number of size measurement challenges enabled us to observe significant improvement opportunities for the methodologies. In this paper, we depict the utilization of the entity generalization concept in two FSM methods and based on our observations we discuss the effects of different interpretations of the concept for measuring the software functional size. © 2008 Springer-Verlag Berlin Heidelberg.

关键词： software design

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