Michael Granitzer

2026

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From SERPs to Agents: A Platform for Comparative Studies of Information Interaction.
Saber Zerhoudi|Michael Granitzer
Proceedings of the 2026 Conference on Human Information Interaction and Retrieval, CHIIR 2026, Seattle, WA, USA, March 22-26, 2026
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In-Browser Agents for Search Assistance.
Saber Zerhoudi|Michael Granitzer
Proceedings of the 2026 Conference on Human Information Interaction and Retrieval, CHIIR 2026, Seattle, WA, USA, March 22-26, 2026
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The Third International Workshop on Open Web Search (WOWS).
Laura Caspari|Maik Fröbe|Sebastian Heineking|Michael Granitzer|Gijs Hendriksen|Djoerd Hiemstra|Martin Potthast|Arjen P. de Vries|Saber Zerhoudi
Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part III
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CoRECT: A Framework for Evaluating Embedding Compression Techniques at Scale.
Laura Caspari|Michael Dinzinger|Kanishka Ghosh Dastidar|Christofer Fellicious|Jelena Mitrovic|Michael Granitzer
Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part IV
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Creating Specialized RAG-Based Search Engines Using the Open Web Index.
Alexander Nussbaumer|Michael Dinzinger|Sebastian Heineking|Gijs Hendriksen|Felix Holz|Saber Zerhoudi|Martin Potthast|Michael Granitzer
Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part IV
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Beyond the Click: A Framework for Inferring Cognitive Traces in Search.
Saber Zerhoudi|Michael Granitzer
Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part IV
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OwlerLite: Scope- and Freshness-Aware Web Retrieval for LLM Assistants.
Saber Zerhoudi|Michael Dinzinger|Michael Granitzer|Jelena Mitrovic
Companion Proceedings of the ACM Web Conference 2026, WWW Companion 2026, Dubai, United Arab Emirates, 29 June 2026 - 3 July 2026

2025

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Report on the 2nd Search Futures Workshop at ECIR 2025.
Charles L. A. Clarke|Paul B. Kantor|Adam Roegiest|Johanne R. Trippas|Zhaochun Ren|Maria Sofia Bucarelli|Xiao Fu|Yixing Fan|Michael Granitzer|David Graus|Maria Heuss|Jaap Kamps|Yibin Lei|Andrew Parry|Damiaan Reijnaers|Maarten de Rijke|Siddharth A. K. Singh|Yubao Tang|Suzan Verberne|Jonas Wallat|Yumeng Wang|Chen Xu|Andrew Yates|Saber Zerhoudi|Jujia Zhao
SIGIR Forum 2025 Volume 59 Issue 1
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Instruct-to-SPARQL: A text-to-SPARQL dataset for training SPARQL Agents.
Mehdi Ben Amor|Alexis Strappazzon|Michael Granitzer|Elöd Egyed-Zsigmond|Jelena Mitrovic
Proceedings of the 2025 ACM SIGIR Conference on Human Information Interaction and Retrieval, CHIIR 2025, MelbourneAustralia, March 24-28, 2025
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SearchLab: Exploring Conversational and Traditional Search Interfaces in Information Retrieval.
Saber Zerhoudi|Michael Granitzer
Proceedings of the 2025 ACM SIGIR Conference on Human Information Interaction and Retrieval, CHIIR 2025, MelbourneAustralia, March 24-28, 2025
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Compressed Concatenation of Small Embedding Models.
Mohamed Ayoub Ben Ayad|Michael Dinzinger|Kanishka Ghosh Dastidar|Jelena Mitrovic|Michael Granitzer
Proceedings of the 34th ACM International Conference on Information and Knowledge Management, CIKM 2025, Seoul, Republic of Korea, November 10-14, 2025
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UXSim: Towards a Hybrid User Search Simulation.
Saber Zerhoudi|Michael Granitzer
Proceedings of the 34th ACM International Conference on Information and Knowledge Management, CIKM 2025, Seoul, Republic of Korea, November 10-14, 2025
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The Second International Workshop on Open Web Search (WOWS).
Sheikh Mastura Farzana|Maik Fröbe|Michael Granitzer|Gijs Hendriksen|Djoerd Hiemstra|Martin Potthast|Arjen P. de Vries|Saber Zerhoudi
Advances in Information Retrieval - 47th European Conference on Information Retrieval, ECIR 2025, Lucca, Italy, April 6-10, 2025, Proceedings, Part V
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WebFAQ: A Multilingual Collection of Natural Q&A Datasets for Dense Retrieval.
Michael Dinzinger|Laura Caspari|Kanishka Ghosh Dastidar|Jelena Mitrovic|Michael Granitzer
Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025

2024

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Report on the 1st International Workshop on Open Web Search (WOWS 2024) at ECIR 2024.
Sheikh Mastura Farzana|Maik Fröbe|Michael Granitzer|Gijs Hendriksen|Djoerd Hiemstra|Martin Potthast|Arjen P. de Vries|Saber Zerhoudi
SIGIR Forum 2024 Volume 58 Issue 1
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Impact and development of an Open Web Index for open web search.
Michael Granitzer|Stefan Voigt|Noor Afshan Fathima|Martin Golasowski|Christian Guetl|Tobias Hecking|Gijs Hendriksen|Djoerd Hiemstra|Jan Martinovic|Jelena Mitrovic|Izidor Mlakar|Stavros Moiras|Alexander Nussbaumer|Per Öster|Martin Potthast|Marjana Sencar Srdic|Sharikadze Megi|Katerina Slaninová|Benno Stein|Arjen P. de Vries|Vít Vondrák|Andreas Wagner|Saber Zerhoudi
Journal of the Association for Information Science and Technology (JASIST) 2024 Volume 75 Issue 5
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The First International Workshop on Open Web Search (WOWS).
Sheikh Mastura Farzana|Maik Fröbe|Michael Granitzer|Gijs Hendriksen|Djoerd Hiemstra|Martin Potthast|Saber Zerhoudi
Advances in Information Retrieval - 46th European Conference on Information Retrieval, ECIR 2024, Glasgow, UK, March 24-28, 2024, Proceedings, Part V
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The Open Web Index - Crawling and Indexing the Web for Public Use.
Gijs Hendriksen|Michael Dinzinger|Sheikh Mastura Farzana|Noor Afshan Fathima|Maik Fröbe|Sebastian Schmidt|Saber Zerhoudi|Michael Granitzer|Matthias Hagen|Djoerd Hiemstra|Martin Potthast|Benno Stein
Advances in Information Retrieval - 46th European Conference on Information Retrieval, ECIR 2024, Glasgow, UK, March 24-28, 2024, Proceedings, Part V
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A Longitudinal Study of Content Control Mechanisms.
Michael Dinzinger|Michael Granitzer
Companion Proceedings of the ACM on Web Conference 2024, WWW 2024, Singapore, Singapore, May 13-17, 2024

2022

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The SimIIR 2.0 Framework: User Types, Markov Model-Based Interaction Simulation, and Advanced Query Generation.
Saber Zerhoudi|Sebastian Günther|Kim Plassmeier|Timo Borst|Christin Seifert|Matthias Hagen|Michael Granitzer
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022
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Evaluating Simulated User Interaction and Search Behaviour.
Saber Zerhoudi|Michael Granitzer|Christin Seifert|Joerg Schloetterer
Advances in Information Retrieval - 44th European Conference on IR Research, ECIR 2022, Stavanger, Norway, April 10-14, 2022, Proceedings, Part II

2021

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Automated identification of bias inducing words in news articles using linguistic and context-oriented features.
Timo Spinde|Lada Rudnitckaia|Jelena Mitrovic|Felix Hamborg|Michael Granitzer|Bela Gipp|Karsten Donnay
Information Processing and Management 2021 Volume 58 Issue 3
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Query Change as a Contextual Markov Model for Simulating User Search Behaviour.
Saber Zerhoudi|Michael Granitzer|Jörg Schlötterer|Christin Seifert
FIRE 2021: Forum for Information Retrieval Evaluation, Virtual Event, India, December 13 - 17, 2021

2020

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Influence of Random Walk Parametrization on Graph Embeddings.
Fabian Schliski|Jörg Schlötterer|Michael Granitzer
Advances in Information Retrieval - 42nd European Conference on IR Research, ECIR 2020, Lisbon, Portugal, April 14-17, 2020, Proceedings, Part II

2018

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Stacked Gender Prediction from Tweet Texts and Images: Notebook for PAN at CLEF 2018.
Giovanni Ciccone|Arthur Sultan|Léa Laporte|Elöd Egyed-Zsigmond|Alaa Alhamzeh|Michael Granitzer
Working Notes of CLEF 2018 - Conference and Labs of the Evaluation Forum, Avignon, France, September 10-14, 2018.
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Collection-Document Summaries.
Nils Witt|Michael Granitzer|Christin Seifert
Advances in Information Retrieval - 40th European Conference on IR Research, ECIR 2018, Grenoble, France, March 26-29, 2018, Proceedings

2017

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INSA LYON and UNI PASSAU's Participation at PAN@CLEF'17: Author Profiling task.
Guillaume Kheng|Léa Laporte|Michael Granitzer
Working Notes of CLEF 2017 - Conference and Labs of the Evaluation Forum, Dublin, Ireland, September 11-14, 2017.

2016

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Evaluating Memory Efficiency and Robustness of Word Embeddings.
Johannes Jurgovsky|Michael Granitzer|Christin Seifert
Advances in Information Retrieval - 38th European Conference on IR Research, ECIR 2016, Padua, Italy, March 20-23, 2016. Proceedings
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Robust and Collective Entity Disambiguation through Semantic Embeddings.
Stefan Zwicklbauer|Christin Seifert|Michael Granitzer
Proceedings of the 39th International ACM SIGIR conference on Research and Development in Information Retrieval, SIGIR 2016, Pisa, Italy, July 17-21, 2016

2015

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From Context-Aware to Context-Based: Mobile Just-In-Time Retrieval of Cultural Heritage Objects.
Jörg Schlötterer|Christin Seifert|Wolfgang Lutz|Michael Granitzer
Advances in Information Retrieval - 37th European Conference on IR Research, ECIR 2015, Vienna, Austria, March 29 - April 2, 2015. Proceedings

2012

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Overview and analysis of personal and social tagging context to construct user models.
Karin Schoefegger|Michael Granitzer
Proceedings of the 2nd Workshop on Context-awareness in Retrieval and Recommendation, CaRR '12, Lisbon, Portugal, February 14, 2012
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Harnessing user library statistics for research evaluation and knowledge domain visualization.
Peter Kraker|Christian Körner|Kris Jack|Michael Granitzer
Proceedings of the 21st World Wide Web Conference, WWW 2012, Lyon, France, April 16-20, 2012 (Companion Volume)
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Measuring the quality of web content using factual information.
Elisabeth Lex|Michael Völske|Marcelo Errecalde|Edgardo Ferretti|Leticia C. Cagnina|Christopher Horn|Benno Stein|Michael Granitzer
Proceedings of the 2nd Joint WICOW/AIRWeb Workshop on Web Quality, WebQuality '12, Lyon, France, April 16, 2012

2011

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Vote/Veto Meta-Classifier for Authorship Identification - Notebook for PAN at CLEF 2011.
Roman Kern|Christin Seifert|Mario Zechner|Michael Granitzer
CLEF 2011 Labs and Workshop, Notebook Papers, 19-22 September 2011, Amsterdam, The Netherlands
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Realtime Ad Hoc Search in Twitter: Know-Center at TREC Microblog Track 2011.
Christopher Horn|Oliver Pimas|Michael Granitzer|Elisabeth Lex
Proceedings of The Twentieth Text REtrieval Conference, TREC 2011, Gaithersburg, Maryland, USA, November 15-18, 2011

2010

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External and Intrinsic Plagiarism Detection Using a Cross-Lingual Retrieval and Segmentation System - Lab Report for PAN at CLEF 2010.
Markus Muhr|Roman Kern|Mario Zechner|Michael Granitzer
CLEF 2010 LABs and Workshops, Notebook Papers, 22-23 September 2010, Padua, Italy
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Stylometric features for emotion level classification in news related blogs.
Elisabeth Lex|Michael Granitzer|Markus Muhr|Andreas Juffinger
Recherche d'Information Assistée par Ordinateur, RIAO 2010: Adaptivity, Personalization and Fusion of Heterogeneous Information, 9th International Conference, Bibliotheque Nationale de France, Paris, France, April 28-30, 2010, Proceedings
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Analysis of structural relationships for hierarchical cluster labeling.
Markus Muhr|Roman Kern|Michael Granitzer
Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010

2009

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Evaluation of Axiomatic Approaches to Crosslanguage Retrieval.
Roman Kern|Andreas Juffinger|Michael Granitzer
Multilingual Information Access Evaluation I. Text Retrieval Experiments, 10th Workshop of the Cross-Language Evaluation Forum, CLEF 2009, Corfu, Greece, September 30 - October 2, 2009, Revised Selected Papers
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Application of Axiomatic Approaches to Crosslanguage Retrieval.
Roman Kern|Andreas Juffinger|Michael Granitzer
Working Notes for CLEF 2009 Workshop co-located with the 13th European Conference on Digital Libraries (ECDL 2009) , Corfù, Greece, September 30 - October 2, 2009.
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Facet Classification of Blogs: Know-Center at the TREC 2009 Blog Distillation Task.
Elisabeth Lex|Michael Granitzer|Andreas Juffinger
Proceedings of The Eighteenth Text REtrieval Conference, TREC 2009, Gaithersburg, Maryland, USA, November 17-20, 2009
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Blog credibility ranking by exploiting verified content.
Andreas Juffinger|Michael Granitzer|Elisabeth Lex
Proceedings of the 3rd ACM Workshop on Information Credibility on the Web, WICOW 2009, Madrid, Spain, April 20, 2009

2008

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Crosslanguage Retrieval Based on Wikipedia Statistics.
Andreas Juffinger|Roman Kern|Michael Granitzer
Evaluating Systems for Multilingual and Multimodal Information Access, 9th Workshop of the Cross-Language Evaluation Forum, CLEF 2008, Aarhus, Denmark, September 17-19, 2008, Revised Selected Papers
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Exploiting Cooccurrence on Corpus and Document Level for Fair Crosslanguage Retrieval.
Andreas Juffinger|Roman Kern|Michael Granitzer
Working Notes for CLEF 2008 Workshop co-located with the 12th European Conference on Digital Libraries (ECDL 2008) , Aarhus, Denmark, September 17-19, 2008.