BibSonomy publications for /author/KrauseSat Feb 11 19:24:16 CET 2012Berlin [u.a.]Advances in Information Retrieval101--113Lecture Notes in Computer ScienceA Comparison of Social Bookmarking with Traditional Search49562008imported Social bookmarking systems allow users to store links to internet resources on a web page. As social bookmarking systems are growing in popularity, search algorithms have been developed that transfer the idea of link-based rankings in the Web to a social bookmarking system's data structure. These rankings differ from traditional search engine rankings in that they incorporate the rating of users. In this study, we compare search in social bookmarking systems with traditional Web search. In the first part, we compare the user activity and behaviour in both kinds of systems, as well as the overlap of the underlying sets of URLs. In the second part, we compare graph-based and vector space rankings for social bookmarking systems with commercial search engine rankings. Our experiments are performed on data of the social bookmarking system Del.icio.us and on rankings and log data from Google, MSN, and AOL. We will show that part of the difference between the systems is due to different behaviour (e.g. the concatenation of multi-word lexems to single terms in Del.icio.us), and that real-world events may trigger similar behaviour in both kinds of systems. We will also show that a graph-based ranking approach on folksonomies yields results that are closer to the rankings of the commercial search engines than vector space retrieval, and that the correlation is high in particular for the domains that are well covered by the social bookmarking system.Wed Feb 08 00:00:00 CET 2012TKDD421Inferring Networks of Diffusion and Influence.52012dblp Mon Feb 06 00:00:00 CET 2012Computer Physics Communications4880-889A massively parallel, multi-disciplinary Barnes-Hut tree code for extreme-scale N-body simulations.1832012dblp Mon Feb 06 00:00:00 CET 2012Multiscale Modeling & Simulation41459-1494Coupling Molecular Dynamics and Continua with Weak Constraints.92011dblp Thu Feb 02 00:00:00 CET 2012IEEE Communications Letters12938-940On bounding the performance of group-wise multiuser detectors.132009dblp Thu Feb 02 00:00:00 CET 2012Informatik Spektrum112-23Datenschutz im Web 2.0 am Beispiel des sozialen Tagging-Systems BibSonomy.352012dblp Tue Jan 31 00:00:00 CET 2012COORDINATIONconf/coordination/2011187-201Lecture Notes in Computer ScienceSimulation-Based Performance Analysis of Channel-Based Coordination Models.67212011dblp Tue Jan 31 00:00:00 CET 2012PARAconf/para/2006799-808Lecture Notes in Computer ScienceGrid Enabling Your Data Resources with OGSA-DAI.46992006dblp Sun Jan 29 11:46:30 CET 2012Proceedings of the 17th ACM Conference on Information and Knowledge Management, CIKM 2008, Napa Valley, California, USA, October 26-30, 20081429-1430{R}anking in {F}olksonomy {S}ystems: can context help?2008folksonomy ranking social-search Fri Jan 27 00:00:00 CET 2012e-Science Workshopsconf/eScience/2011w66-73Parallel Scale-Transfer in Multiscale MD-FE Coupling Using Remote Memory Access.2011dblp Tue Jan 24 00:00:00 CET 2012GLOBECOMconf/globecom/20111-5Preprocessing for Iterative ML-Detection in Frequency-Selective MIMO Channels.2011dblp Mon Jan 23 00:00:00 CET 2012IACR Cryptology ePrint Archive92BDD-based Cryptanalysis of Keystream Generators.20012001dblp Thu Jan 19 12:34:45 CET 2012Berlin / HeidelbergThe VLDB Journaldec6849--875The Social Bookmark and Publication Management System BibSonomy192010bibsonomy bookmark publication sharing social system 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 18 00:00:00 CET 2012IEEE Trans. Automat. Contr.102390-2405Simultaneous Optimization of Sensor Placements and Balanced Schedules.562011dblp Fri Jan 13 00:00:00 CET 2012IACR Cryptology ePrint Archive511The Cryptographic Power of Random Selection.20112011dblp Mon Jan 02 00:00:00 CET 2012AMCISconf/amcis/200914Shared Services Strategies and Their Determinants: A Multiple Case Study Analysis in the Public Sector.2009dblp Thu Dec 29 00:00:00 CET 2011Universität Trier, Mathematik/Informatik, ForschungsberichtSeparating Counting Communication Complexity Classes92-011992dblp Fri Dec 23 00:00:00 CET 2011AAAIconf/aaai/1994-1833-838Principled Multilingual Grammars for Large Corpora.1994dblp Fri Dec 23 00:00:00 CET 2011AAAI Workshop on Intelligent Multimedia Interfacesconf/aaai/1991w328-352A Multilayered Empirical Approach to Multimodality: Towards Mixed Solutions of Natural Language and Graphical Interfaces.1991dblp Wed Dec 21 01:05:11 CET 2011J Chem Inf Comput Sci61733-1739NMRShiftDB - Constructing a free chemical information system with open-source components432003NMR The process of designing and implementing NMRShiftDB, an open-source, open-content database for chemical structures and their NMR data based solely on free software is described. NMRShiftDB is available to the community on http://www.nmrshiftdb.org. It allows for open submission and retrieval of data sets by its user community. The software and the content itself is freely distributable, allowing for the establishment of a highly available mirror system of databases in collaborating laboratories.