Publikationen

Hier finden Sie von Know-Center MitarbeiterInnen verfasste wissenschaftliche Publikationen

2011

Kern Roman, Zechner Mario, Granitzer Michael

Model Selection Strategies for Author Disambiguation

IEEE Computer Society: 8th International Workshop on Text-based Information Retrieval in Procceedings of 22th International Conference on Database and Expert Systems Applications (DEXA 11), IEEE , 2011

Konferenz
Author disambiguation is a prerequisite for utilizingbibliographic metadata in citation analysis. Automaticdisambiguation algorithms mostly rely on cluster-based disambiguationstrategies for identifying unique authors given theirnames and publications. However, most approaches rely onknowing the correct number of unique authors a-priori, whichis rarely the case in real world settings. In this publicationwe analyse cluster-based disambiguation strategies and developa model selection method to estimate the number of distinctauthors based on co-authorship networks. We show that, givenclean textual features, the developed model selection methodprovides accurate guesses of the number of unique authors.
2011

Kern Roman, Seifert Christin, Zechner Mario, Granitzer Michael

Vote/Veto Meta-Classifier for Authorship Identification

CLEF 2011: Proceedings of the 2011 Conference on Multilingual and Multimodal Information Access Evaluation (Lab and Workshop Notebook Papers), Amsterdam, The Netherlands, 2011

For the PAN 2011 authorship identification challenge we have developeda system based on a meta-classifier which selectively uses the results ofmultiple base classifiers. In addition we also performed feature engineering basedon the given domain of e-mails. We present our system as well as results on theevaluation dataset. Our system performed second and third best in the authorshipattribution task on the large data sets, and ranked middle for the small data set inthe attribution task and in the verification task.
2010

Kern Roman, Zechner Mario, Granitzer Michael, Muhr M.

External and Intrinsic Plagiarism Detection using a Cross-Lingual Retrieval and Segmentation System Lab Report for PAN at CLEF 2010

2nd International Competition on Plagiarism Detection, 2010

Konferenz
We present our hybrid system for the PAN challenge at CLEF 2010.Our system performs plagiarism detection for translated and non-translated externallyas well as intrinsically plagiarized document passages. Our external plagiarismdetection approach is formulated as an information retrieval problem, usingheuristic post processing to arrive at the final detection results. For the retrievalstep, source documents are split into overlapping blocks which are indexed via aLucene instance. Suspicious documents are similarly split into consecutive overlappingboolean queries which are performed on the Lucene index to retrieve aninitial set of potentially plagiarized passages. For performance reasons queriesmight get rejected via a heuristic before actually being executed. Candidate hitsgathered via the retrieval step are further post-processed by performing sequenceanalysis on the passages retrieved from the index with respect to the passagesused for querying the index. By applying several merge heuristics bigger blocksare formed from matching sequences. German and Spanish source documentsare first translated using word alignment on the Europarl corpus before enteringthe above detection process. For each word in a translated document severaltranslations are produced. Intrinsic plagiarism detection is done by finding majorchanges in style measured via word suffixes after the documents have been partitionedby an linear text segmentation algorithm. Our approach lead us to the thirdoverall rank with an overall score of 0.6948.
2009

Granitzer Michael, Zechner Mario, Seifert C.

Context based Wikipedia Linking

Advances in Focused Retrieval 7th International Workshop of the Initiative for the Evaluation of XML Retrieval (INEX 2008), Geva, S., Kamps, J., Trotman, A., Springer, 2009

Konferenz
2009

Zechner Mario, Granitzer Michael

Accelerating K-Means on the Graphics Processor via CUDA

Proceedings of the 2009 First International Conference on Intensive Applications and Services (INTENSIVE 2009), IEEE Computer Society, 2009

2009

Zechner Mario, Kern Roman, Granitzer Michael, Muhr M.

External and Intrinsic Plagiarism Detection Using Vector Space Models

Proceedings of the SEPLN'09 Workshop on Uncovering Plagiarism, Authorship and Social Software Misuse, 2009

Konferenz
2009

Zechner Mario, Granitzer Michael

A Competitive Learning Approach to Instance Selection for Support Vector Machines

To appear in: Proceedings of the 3rd International Conference on Knowledge Science, Engineering and Management, 2009

Konferenz
2009

Zechner Mario, Granitzer Michael

K-Means on the Graphics Processor: Design And Experimental Analysis

International Journal on Advances in Systems and Measurements, Volume 2, Number 2&3, Paleologu, C., 2009

Journal
2008

Granitzer Michael, Seifert C., Zechner Mario

Context Resolution Strategies for Automatic Wikipedia Linking

INEX 2008 pre-proceedings, Dagstuhl, Germany, Geva, S., Kamps, J., Trotman, A., Shlomo Geva and Jaap Kamps and Andrew Trotman (Eds.), 2008

Konferenz
2008

Granitzer Michael, Zechner Mario, Kolbitsch J., Kemper P., In't Velt R.

Evaluation of Automatic Linking Strategies for Wikipedia Pages

Proceedings of the IADIS WWW/Internet Conference 2008, IADIS, 2008

Konferenz
2007

Kienreich Wolfgang, Zechner Mario, Sabol Vedran

Comprehensive Astronomical Visualization for a Multimedia Encyclopedia

3rd International Symposium of Knowledge and Argument Visualization. Proceedings of IV07, 11th International Conference Information Visualisation, IEEE Computer Society, London, UK, 2007

Konferenz
2007

Zechner Mario, Kienreich Wolfgang

Scalable Realtime Glyph Rendering on Consumer Level Graphics Hardware: A Hybrid Approach

Proceedings of VIIP07 - 7th IASTED Conference on Visualization, Imaging and Image Processing, ACTA Press, Palma de Mallorca, Spain, 2007

Konferenz
Kontakt Karriere

Hiermit erkläre ich ausdrücklich meine Einwilligung zum Einsatz und zur Speicherung von Cookies. Weiter Informationen finden sich unter Datenschutzerklärung

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close