PUMA publications for /user/hotho/myown%20bibsonomyWed May 27 15:20:47 CEST 2015Firenze, Italy24th International World Wide Web Conference (WWW2015)May 18 - May 22Hyptrails: A bayesian approach for comparing hypotheses about human trails20152015 bibsonomy compare human hypotheses hyptrails myown trails web Wed Oct 29 11:18:17 CET 2014Proceedings of the 16th {LWA} Workshops: KDML, {IR} and FGWM, Aachen, Germany, September 8-10, 2014.18--19Evaluating Assumptions about Social Tagging - {A} Study of User Behavior
in BibSonomy20142014 behavior bibsonomy myown navigation tagging Mon Jan 20 14:27:08 CET 2014RSWeb@RecSysCEUR Workshop ProceedingsProceedings of the Fifth ACM RecSys Workshop on Recommender Systems and the Social Web co-located with the 7th ACM Conference on Recommender Systems (RecSys 2013), Hong Kong, China, October 13, 2013.106620132013 bibsonomy l3s myown recommender social web workshop Thu Jan 09 19:49:35 CET 2014Berlin, HeidelbergUbiquitous Social Media Analysis Third International Workshops, MUSE 2012, Bristol, UK, September 24, 2012, and MSM 2012, Milwaukee, WI, USA, June 25, 2012, Revised Selected Papers20132013 analysis bibsonomy media myown postproceedings social workshop Tue Dec 11 09:38:35 CET 2012Informatik Spektrum112-23Datenschutz im Web 2.0 am Beispiel des sozialen Tagging-Systems BibSonomy.3520122012 bibsonomy datenschutz myown privacy tagging Thu Jan 27 09:24:11 CET 2011Berlin / HeidelbergThe VLDB Journaldec6849--875The Social Bookmark and Publication Management System BibSonomy1920102010 bibsonomy myown publication social system tagging taggingsurvey vldb Social resource sharing systems are central elements of the Web 2.0 and use the same kind of lightweight knowledge representation, called folksonomy. Their large user communities and ever-growing networks of user-generated content have made them an attractive object of investigation for researchers from different disciplines like Social Network Analysis, Data Mining, Information Retrieval or Knowledge Discovery. In this paper, we summarize and extend our work on different aspects of this branch of Web 2.0 research, demonstrated and evaluated within our own social bookmark and publication sharing system BibSonomy, which is currently among the three most popular systems of its kind. We structure this presentation along the different interaction phases of a user with our system, coupling the relevant research questions of each phase with the corresponding implementation issues. This approach reveals in a systematic fashion important aspects and results of the broad bandwidth of folksonomy research like capturing of emergent semantics, spam detection, ranking algorithms, analogies to search engine log data, personalized tag recommendations and information extraction techniques. We conclude that when integrating a real-life application like BibSonomy into research, certain constraints have to be considered; but in general, the tight interplay between our scientific work and the running system has made BibSonomy a valuable platform for demonstrating and evaluating Web 2.0 research.Wed Jan 26 16:28:11 CET 2011Barcelona, SpainProceedings of the Workshop on Mining Ubiquitous and Social Environments (MUSE2010)Community Assessment using Evidence Networks20102010 assessment bibsonomy community evidence myown networks Community mining is a prominent approach for identifying (user) communities in social and ubiquitous contexts. While there are a variety of methods for community mining and detection, the effective evaluation and validation of the mined communities is usually non-trivial. Often there is no evaluation data at hand in order to validate the discovered groups. This paper proposes evidence networks using implicit information for the evaluation of communities. The presented evaluation approach is based on the idea of reconstructing existing social structures for the assessment and evaluation of a given clustering. We analyze and compare the presented evidence networks using user data from the real-world social
bookmarking application BibSonomy. The results indicate that the evidence
networks reflect the relative rating of the explicit ones very well.Wed Jan 26 16:27:34 CET 2011HMD -- Praxis der Wirtschaftsinformatik#feb#47-58{Publikationsmanagement mit BibSonomy -- ein Social-Bookmarking-System f{\"u}r Wissenschaftler}Heft 27120102.0 2010 bibsonomy bookmarking myown social tagging taggingsurvey web Kooperative Verschlagwortungs- bzw. Social-Bookmarking-Systeme wie Delicious, Mister Wong oder auch unser eigenes System BibSonomy erfreuen sich immer gr{\"o}{\ss}erer Beliebtheit und bilden einen zentralen Bestandteil des heutigen Web 2.0. In solchen Systemen erstellen Nutzer leichtgewichtige Begriffssysteme, sogenannte Folksonomies, die die Nutzerdaten strukturieren. Die einfache Bedienbarkeit, die Allgegenw{\"a}rtigkeit, die st{\"a}ndige Verf{\"u}gbarkeit, aber auch die M{\"o}glichkeit, Gleichgesinnte spontan in solchen Systemen zu entdecken oder sie schlicht als Informationsquelle zu nutzen, sind Gr{\"u}nde f{\"u}r ihren gegenw{\"a}rtigen Erfolg. Der Artikel f{\"u}hrt den Begriff Social Bookmarking ein und diskutiert zentrale Elemente (wie Browsing und Suche) am Beispiel von BibSonomy anhand typischer Arbeitsabl{\"a}ufe eines Wissenschaftlers. Wir beschreiben die Architektur von BibSonomy sowie Wege der Integration und Vernetzung von BibSonomy mit Content-Management-Systemen und Webauftritten. Der Artikel schlie{\ss}t mit Querbez{\"u}gen zu aktuellen Forschungsfragen im Bereich Social Bookmarking.Wed Jan 26 16:23:12 CET 2011MultiMedia und Recht454-458Social Bookmarking-Systeme – die unerkannten Datensammler - Ungewollte personenbezogene Datenverabeitung?720102010 bibsonomy bookmarking datenschutz info2.0 myown social Thu May 20 20:53:45 CEST 2010Krakow, Poland7th Conference on Computer Methods and SystemsNovemberISBN 83-916420-5-4Who are the Spammers? Understandable Local Patterns for Concept Description20092009 bibsonomy discovery dm myown spam subgroup Sun Oct 25 13:32:08 CET 2009Workshop on Knowledge Discovery, Data Mining, and Machine Learningsep44 --51Testing and Evaluating Tag Recommenders in a Live System20092009 bibsonomy folksonomy framework myown recommender tagging taggingsurvey The challenge to provide tag recommendations for collaborative tagging systems has attracted quite some attention of researchers lately. However, most research focused on evaluation and development of appropriate methods rather than tackling the practical challenges of how to integrate recommendation methods into real tagging systems, record and evaluate their performance. In this paper we describe the tag recommendation framework we developed for our social bookmark and publication sharing system BibSonomy. With the intention to develop, test, and evaluate recommendation algorithms and supporting cooperation with researchers, we designed the framework to be easily extensible, open for a variety of methods, and usable independent from BibSonomy. Furthermore, this paper presents an evaluation of two exemplarily deployed recommendation methods, demonstrating the power of the framework.Sun Oct 25 13:29:41 CET 2009Proc. LeGo-09: From Local Patterns to Global Models, Workshop at the 2009 European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databasesaccepted{Towards Understanding Spammers - Discovering Local Patterns for Concept Characterization and Description}20092009 bibsonomy discovery dm myown spam subgroup Sun Sep 27 19:50:19 CEST 2009New York, NY, USAHT '09: Proceedings of the 20th ACM Conference on Hypertext and Hypermediajun323--324Managing publications and bookmarks with BibSonomy20092009 bibsonomy ht09 myown In this demo we present BibSonomy, a social bookmark and publication sharing system.Thu Jan 15 12:26:32 CET 2009Berlin, HeidelbergSocial Semantic Web18363--391X.media.pressSocial Bookmarking am Beispiel BibSonomy20092009 bibsonomy bookmarking myown social tagorapub BibSonomy ist ein kooperatives Verschlagwortungssystem (Social Bookmarking System), betrieben vom Fachgebiet Wissensverarbeitung
der Universität Kassel. Es erlaubt das Speichern und Organisieren von Web-Lesezeichen und Metadaten für wissenschaftlichePublikationen. In diesem Beitrag beschreiben wir die von BibSonomy bereitgestellte Funktionalität, die dahinter stehende Architektursowie das zugrunde liegende Datenmodell. Ferner erläutern wir Anwendungsbeispiele und gehen auf Methoden zur Analyse der in BibSonomy und ähnlichen Systemen enthaltenen Daten ein.Tue Jun 17 22:31:22 CEST 2008Semantic Web and Web 2.0Web Semantics: Science, Services and Agents on the World Wide Webfeb 138--53Discovering Shared Conceptualizations in Folksonomies620082008 analysis bibsonomy concept discovering fca folksonomy formal myown tagging taggingsurvey Social bookmarking tools are rapidly emerging on the Web. In such systems users are setting up lightweight conceptual structures called folksonomies. Unlike ontologies, shared conceptualizations are not formalized, but rather implicit. We present a new data mining task, the mining of all frequent tri-concepts, together with an efficient algorithm, for discovering these implicit shared conceptualizations. Our approach extends the data mining task of discovering all closed itemsets to three-dimensional data structures to allow for mining folksonomies. We provide a formal definition of the problem, and present an efficient algorithm for its solution. Finally, we show the applicability of our approach on three large real-world examples.Thu Jan 31 12:12:22 CET 2008Sheffield, EnglandProceedings of the 15th International Conference on Conceptual StructuresJulyLNCSAnalysis of the Publication Sharing Behaviour in {BibSonomy}460420072007 bibsonomy fca iccs myown trias BibSonomy is a web-based social resource sharing system which allows users to organise and share bookmarks and publications in a collaborative manner. In this paper we present the system, followed by a description of the insights in the structure of its bibliographic data that we gained by applying techniques we developed in the area of Formal Concept Analysis.Wed Jan 23 10:27:06 CET 2008Banff, CanadaWorkshop on Social and Collaborative Construction of Structured Knowledge (CKC 2007) at WWW 2007Organizing Publications and Bookmarks in BibSonomy20072007 bibsonomy bookmarks challenge myown organizing Tue Jan 15 10:31:01 CET 2008Budva, MontenegroProceedings of the 3rd European Semantic Web Conference June411-426LNCSInformation Retrieval in Folksonomies: Search and Ranking401120062006 bibsonomy definition folkrank folksonomy ir kdubiq myown pagerank rank ranking search seminar2006 sosbuch summerschool Fri Jan 26 17:40:36 CET 2007DresdenProc. Workshop on Applications of Semantic Technologies, Informatik 2006octEmergent Semantics in BibSonomyP-9420062006 bibsonomy myown emergence semantics Fri Jan 26 13:34:18 CET 2007Halle-WittenbergProc. 18. Workshop Grundlagen von DatenbankenJune80-84Wege zur Entdeckung von Communities in Folksonomies20062006 folksonomy bibsonomy myown community