2023

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The Infinite Index: Information Retrieval on Generative Text-To-Image Models
Niklas Deckers | Maik Fröbe | Johannes Kiesel | Gianluca Pandolfo | Christopher Schröder | Benno Stein | Martin Potthast
Proceedings of the 2023 Conference on Human Information Interaction and Retrieval, CHIIR 2023, Austin, TX, USA, March 19-23, 2023

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Overview of Touché 2023: Argument and Causal Retrieval - Extended Abstract
Alexander Bondarenko | Maik Fröbe | Johannes Kiesel | Ferdinand Schlatt | Valentin Barrière | Brian Ravenet | Léo Hemamou | Simon Luck | Jan Heinrich Reimer | Benno Stein | Martin Potthast | Matthias Hagen
Advances in Information Retrieval - 45th European Conference on Information Retrieval, ECIR 2023, Dublin, Ireland, April 2-6, 2023, Proceedings, Part III

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Overview of PAN 2023: Authorship Verification, Multi-author Writing Style Analysis, Profiling Cryptocurrency Influencers, and Trigger Detection - Extended Abstract
Janek Bevendorff | Mara Chinea-Rios | Marc Franco-Salvador | Annina Heini | Erik Körner | Krzysztof Kredens | Maximilian Mayerl | Piotr Pezik | Martin Potthast | Francisco Rangel | Paolo Rosso | Efstathios Stamatatos | Benno Stein | Matti Wiegmann | Magdalena Wolska | Eva Zangerle
Advances in Information Retrieval - 45th European Conference on Information Retrieval, ECIR 2023, Dublin, Ireland, April 2-6, 2023, Proceedings, Part III

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Dynamic Exploratory Search for the Information Retrieval Anthology
Tim Gollub | Jason Brockmeyer | Benno Stein | Martin Potthast
Advances in Information Retrieval - 45th European Conference on Information Retrieval, ECIR 2023, Dublin, Ireland, April 2-6, 2023, Proceedings, Part III

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Continuous Integration for Reproducible Shared Tasks with TIRA.io
Maik Fröbe | Matti Wiegmann | Nikolay Kolyada | Bastian Grahm | Theresa Elstner | Frank Loebe | Matthias Hagen | Benno Stein | Martin Potthast
Advances in Information Retrieval - 45th European Conference on Information Retrieval, ECIR 2023, Dublin, Ireland, April 2-6, 2023, Proceedings, Part III

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Bootstrapped nDCG Estimation in the Presence of Unjudged Documents
Maik Fröbe | Lukas Gienapp | Martin Potthast | Matthias Hagen
Advances in Information Retrieval - 45th European Conference on Information Retrieval, ECIR 2023, Dublin, Ireland, April 2-6, 2023, Proceedings, Part I

2022

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Report on the 13th Conference and Labs of the Evaluation Forum (CLEF 2022): Experimental IR Meets Multilinguality, Multimodality, and Interaction
Alberto Barrón-Cedeño | Giovanni Da San Martino | Mirko Degli Esposti | Guglielmo Faggioli | Nicola Ferro | Allan Hanbury | Craig Macdonald | Gabriella Pasi | Martin Potthast | Fabrizio Sebastiani
2022 Volume 56 Issue 2

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How Train-Test Leakage Affects Zero-Shot Retrieval
Maik Fröbe | Christopher Akiki | Martin Potthast | Matthias Hagen
String Processing and Information Retrieval - 29th International Symposium, SPIRE 2022, Concepción, Chile, November 8-10, 2022, Proceedings

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Sparse Pairwise Re-ranking with Pre-trained Transformers
Lukas Gienapp | Maik Fröbe | Matthias Hagen | Martin Potthast
ICTIR '22: The 2022 ACM SIGIR International Conference on the Theory of Information Retrieval, Madrid, Spain, July 11 - 12, 2022

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Overview of Touché 2022: Argument Retrieval
Alexander Bondarenko | Maik Fröbe | Johannes Kiesel | Shahbaz Syed | Timon Gurcke | Meriem Beloucif | Alexander Panchenko | Chris Biemann | Benno Stein | Henning Wachsmuth | Martin Potthast | Matthias Hagen
Proceedings of the Working Notes of CLEF 2022 - Conference and Labs of the Evaluation Forum, Bologna, Italy, September 5th - to - 8th, 2022

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Overview of the Style Change Detection Task at PAN 2022
Eva Zangerle | Maximilian Mayerl | Martin Potthast | Benno Stein
Proceedings of the Working Notes of CLEF 2022 - Conference and Labs of the Evaluation Forum, Bologna, Italy, September 5th - to - 8th, 2022

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Overview of the Authorship Verification Task at PAN 2022
Efstathios Stamatatos | Mike Kestemont | Krzysztof Kredens | Piotr Pezik | Annina Heini | Janek Bevendorff | Benno Stein | Martin Potthast
Proceedings of the Working Notes of CLEF 2022 - Conference and Labs of the Evaluation Forum, Bologna, Italy, September 5th - to - 8th, 2022

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Proceedings of the Working Notes of CLEF 2022 - Conference and Labs of the Evaluation Forum, Bologna, Italy, September 5th - to - 8th, 2022

Proceedings of the Working Notes of CLEF 2022 - Conference and Labs of the Evaluation Forum, Bologna, Italy, September 5th - to - 8th, 2022

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Overview of PAN 2022: Authorship Verification, Profiling Irony and Stereotype Spreaders, and Style Change Detection
Janek Bevendorff | Berta Chulvi | Elisabetta Fersini | Annina Heini | Mike Kestemont | Krzysztof Kredens | Maximilian Mayerl | Reynier Ortega-Bueno | Piotr Pezik | Martin Potthast | Francisco Rangel | Paolo Rosso | Efstathios Stamatatos | Benno Stein | Matti Wiegmann | Magdalena Wolska | Eva Zangerle
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 13th International Conference of the CLEF Association, CLEF 2022, Bologna, Italy, September 5-8, 2022, Proceedings

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Overview of Touché 2022: Argument Retrieval
Alexander Bondarenko | Maik Fröbe | Johannes Kiesel | Shahbaz Syed | Timon Gurcke | Meriem Beloucif | Alexander Panchenko | Chris Biemann | Benno Stein | Henning Wachsmuth | Martin Potthast | Matthias Hagen
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 13th International Conference of the CLEF Association, CLEF 2022, Bologna, Italy, September 5-8, 2022, Proceedings

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Noise-Reduction for Automatically Transferred Relevance Judgments
Maik Fröbe | Christopher Akiki | Martin Potthast | Matthias Hagen
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 13th International Conference of the CLEF Association, CLEF 2022, Bologna, Italy, September 5-8, 2022, Proceedings

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Experimental IR Meets Multilinguality, Multimodality, and Interaction - 13th International Conference of the CLEF Association, CLEF 2022, Bologna, Italy, September 5-8, 2022, Proceedings

Experimental IR Meets Multilinguality, Multimodality, and Interaction - 13th International Conference of the CLEF Association, CLEF 2022, Bologna, Italy, September 5-8, 2022, Proceedings

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The Power of Anchor Text in the Neural Retrieval Era
Maik Fröbe | Sebastian Günther | Maximilian Probst | Martin Potthast | Matthias Hagen
Advances in Information Retrieval - 44th European Conference on IR Research, ECIR 2022, Stavanger, Norway, April 10-14, 2022, Proceedings, Part I

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Overview of Touché 2022: Argument Retrieval - Extended Abstract
Alexander Bondarenko | Maik Fröbe | Johannes Kiesel | Shahbaz Syed | Timon Gurcke | Meriem Beloucif | Alexander Panchenko | Chris Biemann | Benno Stein | Henning Wachsmuth | Martin Potthast | Matthias Hagen
Advances in Information Retrieval - 44th European Conference on IR Research, ECIR 2022, Stavanger, Norway, April 10-14, 2022, Proceedings, Part II

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Overview of PAN 2022: Authorship Verification, Profiling Irony and Stereotype Spreaders, Style Change Detection, and Trigger Detection - Extended Abstract
Janek Bevendorff | Berta Chulvi | Elisabetta Fersini | Annina Heini | Mike Kestemont | Krzysztof Kredens | Maximilian Mayerl | Reyner Ortega-Bueno | Piotr Pezik | Martin Potthast | Francisco Rangel | Paolo Rosso | Efstathios Stamatatos | Benno Stein | Matti Wiegmann | Magdalena Wolska | Eva Zangerle
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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The information retrieval anthology 2021: inaugural status report and challenges ahead
Martin Potthast | Benno Stein | Matthias Hagen
2021 Volume 55 Issue 1

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Meta-Information in Conversational Search
Johannes Kiesel | Lars Meyer | Martin Potthast | Benno Stein
2021 Volume 39 Issue 4

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Predicting essay quality from search and writing behavior
Pertti Vakkari | Michael Völske | Martin Potthast | Matthias Hagen | Benno Stein
2021 Volume 72 Issue 7

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The Information Retrieval Anthology
Martin Potthast | Sebastian Günther | Janek Bevendorff | Jan Philipp Bittner | Alexander Bondarenko | Maik Fröbe | Christian Kahmann | Andreas Niekler | Michael Völske | Benno Stein | Matthias Hagen
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

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CopyCat: Near-Duplicates Within and Between the ClueWeb and the Common Crawl
Maik Fröbe | Janek Bevendorff | Lukas Gienapp | Michael Völske | Benno Stein | Martin Potthast | Matthias Hagen
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

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Identifying Queries in Instant Search Logs
Markus Fischer | Kristof Komlossy | Benno Stein | Martin Potthast | Matthias Hagen
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

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Overview of Touché 2021: Argument Retrieval
Alexander Bondarenko | Lukas Gienapp | Maik Fröbe | Meriem Beloucif | Yamen Ajjour | Alexander Panchenko | Chris Biemann | Benno Stein | Henning Wachsmuth | Martin Potthast | Matthias Hagen
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 12th International Conference of the CLEF Association, CLEF 2021, Virtual Event, September 21-24, 2021, Proceedings

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Overview of PAN 2021: Authorship Verification, Profiling Hate Speech Spreaders on Twitter, and Style Change Detection
Janek Bevendorff | Berta Chulvi | Gretel Liz De la Peña Sarracén | Mike Kestemont | Enrique Manjavacas | Ilia Markov | Maximilian Mayerl | Martin Potthast | Francisco Rangel | Paolo Rosso | Efstathios Stamatatos | Benno Stein | Matti Wiegmann | Magdalena Wolska | Eva Zangerle
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 12th International Conference of the CLEF Association, CLEF 2021, Virtual Event, September 21-24, 2021, Proceedings

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Learning to Rank Arguments with Feature Selection
Christopher Akiki | Maik Fröbe | Matthias Hagen | Martin Potthast
Proceedings of the Working Notes of CLEF 2021 - Conference and Labs of the Evaluation Forum, Bucharest, Romania, September 21st - to - 24th, 2021

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Overview of Touché 2021: Argument Retrieval
Alexander Bondarenko | Lukas Gienapp | Maik Fröbe | Meriem Beloucif | Yamen Ajjour | Alexander Panchenko | Chris Biemann | Benno Stein | Henning Wachsmuth | Martin Potthast | Matthias Hagen
Proceedings of the Working Notes of CLEF 2021 - Conference and Labs of the Evaluation Forum, Bucharest, Romania, September 21st - to - 24th, 2021

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Overview of the Style Change Detection Task at PAN 2021
Eva Zangerle | Maximilian Mayerl | Martin Potthast | Benno Stein
Proceedings of the Working Notes of CLEF 2021 - Conference and Labs of the Evaluation Forum, Bucharest, Romania, September 21st - to - 24th, 2021

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Overview of the Cross-Domain Authorship Verification Task at PAN 2021
Mike Kestemont | Enrique Manjavacas | Ilia Markov | Janek Bevendorff | Matti Wiegmann | Efstathios Stamatatos | Benno Stein | Martin Potthast
Proceedings of the Working Notes of CLEF 2021 - Conference and Labs of the Evaluation Forum, Bucharest, Romania, September 21st - to - 24th, 2021

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Overview of Touché 2021: Argument Retrieval - Extended Abstract
Alexander Bondarenko | Lukas Gienapp | Maik Fröbe | Meriem Beloucif | Yamen Ajjour | Alexander Panchenko | Chris Biemann | Benno Stein | Henning Wachsmuth | Martin Potthast | Matthias Hagen
Advances in Information Retrieval - 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 - April 1, 2021, Proceedings, Part II

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Overview of PAN 2021: Authorship Verification, Profiling Hate Speech Spreaders on Twitter, and Style Change Detection - Extended Abstract
Janek Bevendorff | Berta Chulvi | Gretel Liz De la Peña Sarracén | Mike Kestemont | Enrique Manjavacas | Ilia Markov | Maximilian Mayerl | Martin Potthast | Francisco Manuel Rangel Pardo | Paolo Rosso | Efstathios Stamatatos | Benno Stein | Matti Wiegmann | Magdalena Wolska | Eva Zangerle
Advances in Information Retrieval - 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 - April 1, 2021, Proceedings, Part II

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An Empirical Comparison of Web Page Segmentation Algorithms
Johannes Kiesel | Lars Meyer | Florian Kneist | Benno Stein | Martin Potthast
Advances in Information Retrieval - 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 - April 1, 2021, Proceedings, Part II

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Advances in Information Retrieval - 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 - April 1, 2021, Proceedings, Part II

Advances in Information Retrieval - 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 - April 1, 2021, Proceedings, Part II

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Advances in Information Retrieval - 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 - April 1, 2021, Proceedings, Part I

Advances in Information Retrieval - 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 - April 1, 2021, Proceedings, Part I

2020

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The dilemma of the direct answer
Martin Potthast | Matthias Hagen | Benno Stein
2020 Volume 54 Issue 1

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Sampling Bias Due to Near-Duplicates in Learning to Rank
Maik Fröbe | Janek Bevendorff | Jan Heinrich Reimer | Martin Potthast | Matthias Hagen
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020

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Web Page Segmentation Revisited: Evaluation Framework and Dataset
Johannes Kiesel | Florian Kneist | Lars Meyer | Kristof Komlossy | Benno Stein | Martin Potthast
CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020

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CauseNet: Towards a Causality Graph Extracted from the Web
Stefan Heindorf | Yan Scholten | Henning Wachsmuth | Axel-Cyrille Ngonga Ngomo | Martin Potthast
CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020

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The Impact of Negative Relevance Judgments on NDCG
Lukas Gienapp | Maik Fröbe | Matthias Hagen | Martin Potthast
CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020

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Estimating Topic Difficulty Using Normalized Discounted Cumulated Gain
Lukas Gienapp | Benno Stein | Matthias Hagen | Martin Potthast
CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020

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Overview of Touché 2020: Argument Retrieval - Extended Abstract
Alexander Bondarenko | Maik Fröbe | Meriem Beloucif | Lukas Gienapp | Yamen Ajjour | Alexander Panchenko | Chris Biemann | Benno Stein | Henning Wachsmuth | Martin Potthast | Matthias Hagen
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 11th International Conference of the CLEF Association, CLEF 2020, Thessaloniki, Greece, September 22-25, 2020, Proceedings

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Overview of PAN 2020: Authorship Verification, Celebrity Profiling, Profiling Fake News Spreaders on Twitter, and Style Change Detection
Janek Bevendorff | Bilal Ghanem | Anastasia Giachanou | Mike Kestemont | Enrique Manjavacas | Ilia Markov | Maximilian Mayerl | Martin Potthast | Francisco M. Rangel Pardo | Paolo Rosso | Günther Specht | Efstathios Stamatatos | Benno Stein | Matti Wiegmann | Eva Zangerle
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 11th International Conference of the CLEF Association, CLEF 2020, Thessaloniki, Greece, September 22-25, 2020, Proceedings

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Overview of the Style Change Detection Task at PAN 2020
Eva Zangerle | Maximilian Mayerl | Günther Specht | Martin Potthast | Benno Stein
Working Notes of CLEF 2020 - Conference and Labs of the Evaluation Forum, Thessaloniki, Greece, September 22-25, 2020

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Overview of the Cross-Domain Authorship Verification Task at PAN 2020
Mike Kestemont | Enrique Manjavacas | Ilia Markov | Janek Bevendorff | Matti Wiegmann | Efstathios Stamatatos | Martin Potthast | Benno Stein
Working Notes of CLEF 2020 - Conference and Labs of the Evaluation Forum, Thessaloniki, Greece, September 22-25, 2020

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Overview of the Celebrity Profiling Task at PAN 2020
Matti Wiegmann | Benno Stein | Martin Potthast
Working Notes of CLEF 2020 - Conference and Labs of the Evaluation Forum, Thessaloniki, Greece, September 22-25, 2020

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Overview of Touché 2020: Argument Retrieval
Alexander Bondarenko | Maik Fröbe | Meriem Beloucif | Lukas Gienapp | Yamen Ajjour | Alexander Panchenko | Chris Biemann | Benno Stein | Henning Wachsmuth | Martin Potthast | Matthias Hagen
Working Notes of CLEF 2020 - Conference and Labs of the Evaluation Forum, Thessaloniki, Greece, September 22-25, 2020

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Exploring Argument Retrieval with Transformers
Christopher Akiki | Martin Potthast
Working Notes of CLEF 2020 - Conference and Labs of the Evaluation Forum, Thessaloniki, Greece, September 22-25, 2020

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Abstractive Snippet Generation
Wei-Fan Chen | Shahbaz Syed | Benno Stein | Matthias Hagen | Martin Potthast
WWW '20: The Web Conference 2020, Taipei, Taiwan, April 20-24, 2020

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Touché: First Shared Task on Argument Retrieval
Alexander Bondarenko | Matthias Hagen | Martin Potthast | Henning Wachsmuth | Meriem Beloucif | Chris Biemann | Alexander Panchenko | Benno Stein
Advances in Information Retrieval - 42nd European Conference on IR Research, ECIR 2020, Lisbon, Portugal, April 14-17, 2020, Proceedings, Part II

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Shared Tasks on Authorship Analysis at PAN 2020
Janek Bevendorff | Bilal Ghanem | Anastasia Giachanou | Mike Kestemont | Enrique Manjavacas | Martin Potthast | Francisco M. Rangel Pardo | Paolo Rosso | Günther Specht | Efstathios Stamatatos | Benno Stein | Matti Wiegmann | Eva Zangerle
Advances in Information Retrieval - 42nd European Conference on IR Research, ECIR 2020, Lisbon, Portugal, April 14-17, 2020, Proceedings, Part II

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A Search Engine for Police Press Releases to Double-Check the News
Maik Fröbe | Nina Schwanke | Matthias Hagen | Martin Potthast
Advances in Information Retrieval - 42nd European Conference on IR Research, ECIR 2020, Lisbon, Portugal, April 14-17, 2020, Proceedings, Part II

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The Effect of Content-Equivalent Near-Duplicates on the Evaluation of Search Engines
Maik Fröbe | Jan Philipp Bittner | Martin Potthast | Matthias Hagen
Advances in Information Retrieval - 42nd European Conference on IR Research, ECIR 2020, Lisbon, Portugal, April 14-17, 2020, Proceedings, Part II

2019

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Modeling the usefulness of search results as measured by information use
Pertti Vakkari | Michael Völske | Martin Potthast | Matthias Hagen | Benno Stein
2019 Volume 56 Issue 3

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Argument Search: Assessing Argument Relevance
Martin Potthast | Lukas Gienapp | Florian Euchner | Nick Heilenkötter | Nico Weidmann | Henning Wachsmuth | Benno Stein | Matthias Hagen
Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2019, Paris, France, July 21-25, 2019

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Overview of the Style Change Detection Task at PAN 2019
Eva Zangerle | Michael Tschuggnall | Günther Specht | Benno Stein | Martin Potthast
Working Notes of CLEF 2019 - Conference and Labs of the Evaluation Forum, Lugano, Switzerland, September 9-12, 2019

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Overview of the Cross-domain Authorship Attribution Task at PAN 2019
Mike Kestemont | Efstathios Stamatatos | Enrique Manjavacas | Walter Daelemans | Martin Potthast | Benno Stein
Working Notes of CLEF 2019 - Conference and Labs of the Evaluation Forum, Lugano, Switzerland, September 9-12, 2019

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Overview of the Celebrity Profiling Task at PAN 2019
Matti Wiegmann | Benno Stein | Martin Potthast
Working Notes of CLEF 2019 - Conference and Labs of the Evaluation Forum, Lugano, Switzerland, September 9-12, 2019

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Overview of PAN 2019: Bots and Gender Profiling, Celebrity Profiling, Cross-Domain Authorship Attribution and Style Change Detection
Walter Daelemans | Mike Kestemont | Enrique Manjavacas | Martin Potthast | Francisco M. Rangel Pardo | Paolo Rosso | Günther Specht | Efstathios Stamatatos | Benno Stein | Michael Tschuggnall | Matti Wiegmann | Eva Zangerle
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 10th International Conference of the CLEF Association, CLEF 2019, Lugano, Switzerland, September 9-12, 2019, Proceedings

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Debiasing Vandalism Detection Models at Wikidata
Stefan Heindorf | Yan Scholten | Gregor Engels | Martin Potthast
The World Wide Web Conference, WWW 2019, San Francisco, CA, USA, May 13-17, 2019

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A Decade of Shared Tasks in Digital Text Forensics at PAN
Martin Potthast | Paolo Rosso | Efstathios Stamatatos | Benno Stein
Advances in Information Retrieval - 41st European Conference on IR Research, ECIR 2019, Cologne, Germany, April 14-18, 2019, Proceedings, Part II

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Wikipedia Text Reuse: Within and Without
Milad Alshomary | Michael Völske | Tristan Licht | Henning Wachsmuth | Benno Stein | Matthias Hagen | Martin Potthast
Advances in Information Retrieval - 41st European Conference on IR Research, ECIR 2019, Cologne, Germany, April 14-18, 2019, Proceedings, Part I

2018

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Shaping the Information Nutrition Label
Tim Gollub | Martin Potthast | Benno Stein
Proceedings of the Second International Workshop on Recent Trends in News Information Retrieval co-located with 40th European Conference on Information Retrieval (ECIR 2018), Grenoble, France, March 26, 2018

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A Plan for Ancillary Copyright: Original Snippets
Martin Potthast | Wei-Fan Chen | Matthias Hagen | Benno Stein
Proceedings of the Second International Workshop on Recent Trends in News Information Retrieval co-located with 40th European Conference on Information Retrieval (ECIR 2018), Grenoble, France, March 26, 2018

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A User Study on Snippet Generation: Text Reuse vs. Paraphrases
Wei-Fan Chen | Matthias Hagen | Benno Stein | Martin Potthast
The 41st International ACM SIGIR Conference on Research & Development in Information Retrieval, SIGIR 2018, Ann Arbor, MI, USA, July 08-12, 2018

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Overview of the Author Identification Task at PAN-2018: Cross-domain Authorship Attribution and Style Change Detection
Mike Kestemont | Michael Tschuggnall | Efstathios Stamatatos | Walter Daelemans | Günther Specht | Benno Stein | Martin Potthast
Working Notes of CLEF 2018 - Conference and Labs of the Evaluation Forum, Avignon, France, September 10-14, 2018

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Overview of the Author Obfuscation Task at PAN 2018: A New Approach to Measuring Safety
Martin Potthast | Felix Schremmer | Matthias Hagen | Benno Stein
Working Notes of CLEF 2018 - Conference and Labs of the Evaluation Forum, Avignon, France, September 10-14, 2018

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Overview of the 6th Author Profiling Task at PAN 2018: Multimodal Gender Identification in Twitter
Francisco M. Rangel Pardo | Paolo Rosso | Manuel Montes-y-Gómez | Martin Potthast | Benno Stein
Working Notes of CLEF 2018 - Conference and Labs of the Evaluation Forum, Avignon, France, September 10-14, 2018

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Overview of PAN 2018 - Author Identification, Author Profiling, and Author Obfuscation
Efstathios Stamatatos | Francisco M. Rangel Pardo | Michael Tschuggnall | Benno Stein | Mike Kestemont | Paolo Rosso | Martin Potthast
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 9th International Conference of the CLEF Association, CLEF 2018, Avignon, France, September 10-14, 2018, Proceedings

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WASP: Web Archiving and Search Personalized
Johannes Kiesel | Arjen P. de Vries | Matthias Hagen | Benno Stein | Martin Potthast
Proceedings of the First Biennial Conference on Design of Experimental Search & Information Retrieval Systems, Bertinoro, Italy, August 28-31, 2018

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Elastic ChatNoir: Search Engine for the ClueWeb and the Common Crawl
Janek Bevendorff | Benno Stein | Matthias Hagen | Martin Potthast
Advances in Information Retrieval - 40th European Conference on IR Research, ECIR 2018, Grenoble, France, March 26-29, 2018, Proceedings

2017

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WSDM Cup 2017: Vandalism Detection and Triple Scoring
Stefan Heindorf | Martin Potthast | Hannah Bast | Björn Buchhold | Elmar Haussmann
Proceedings of the Tenth ACM International Conference on Web Search and Data Mining, WSDM 2017, Cambridge, United Kingdom, February 6-10, 2017

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A Large-Scale Query Spelling Correction Corpus
Matthias Hagen | Martin Potthast | Marcel Gohsen | Anja Rathgeber | Benno Stein
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

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Source Retrieval for Web-Scale Text Reuse Detection
Matthias Hagen | Martin Potthast | Payam Adineh | Ehsan Fatehifar | Benno Stein
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, CIKM 2017, Singapore, November 06 - 10, 2017

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Overview of the Author Identification Task at PAN-2017: Style Breach Detection and Author Clustering
Michael Tschuggnall | Efstathios Stamatatos | Ben Verhoeven | Walter Daelemans | Günther Specht | Benno Stein | Martin Potthast
Working Notes of CLEF 2017 - Conference and Labs of the Evaluation Forum, Dublin, Ireland, September 11-14, 2017

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Overview of the Author Obfuscation Task at PAN 2017: Safety Evaluation Revisited
Matthias Hagen | Martin Potthast | Benno Stein
Working Notes of CLEF 2017 - Conference and Labs of the Evaluation Forum, Dublin, Ireland, September 11-14, 2017

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Overview of the 5th Author Profiling Task at PAN 2017: Gender and Language Variety Identification in Twitter
Francisco Manuel Rangel Pardo | Paolo Rosso | Martin Potthast | Benno Stein
Working Notes of CLEF 2017 - Conference and Labs of the Evaluation Forum, Dublin, Ireland, September 11-14, 2017

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Overview of PAN'17 - Author Identification, Author Profiling, and Author Obfuscation
Martin Potthast | Francisco M. Rangel Pardo | Michael Tschuggnall | Efstathios Stamatatos | Paolo Rosso | Benno Stein
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 8th International Conference of the CLEF Association, CLEF 2017, Dublin, Ireland, September 11-14, 2017, Proceedings

2016

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Algorithms and Corpora for Persian Plagiarism Detection - Overview of PAN at FIRE 2016
Habibollah Asghari | Salar Mohtaj | Omid Fatemi | Heshaam Faili | Paolo Rosso | Martin Potthast
Text Processing - FIRE 2016 International Workshop, Kolkata, India, December 7-10, 2016, Revised Selected Papers

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Algorithms and Corpora for Persian Plagiarism Detection: Overview of PAN at FIRE 2016
Habibollah Asghari | Salar Mohtaj | Omid Fatemi | Heshaam Faili | Paolo Rosso | Martin Potthast
Working notes of FIRE 2016 - Forum for Information Retrieval Evaluation, Kolkata, India, December 7-10, 2016

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Vandalism Detection in Wikidata
Stefan Heindorf | Martin Potthast | Benno Stein | Gregor Engels
Proceedings of the 25th ACM International Conference on Information and Knowledge Management, CIKM 2016, Indianapolis, IN, USA, October 24-28, 2016

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How Writers Search: Analyzing the Search and Writing Logs of Non-fictional Essays
Matthias Hagen | Martin Potthast | Michael Völske | Jakob Gomoll | Benno Stein
Proceedings of the 2016 ACM Conference on Human Information Interaction and Retrieval, CHIIR 2016, Carrboro, North Carolina, USA, March 13-17, 2016

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Overview of the 4th Author Profiling Task at PAN 2016: Cross-Genre Evaluations
Francisco Manuel Rangel Pardo | Paolo Rosso | Ben Verhoeven | Walter Daelemans | Martin Potthast | Benno Stein
Working Notes of CLEF 2016 - Conference and Labs of the Evaluation forum, Évora, Portugal, 5-8 September, 2016

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Author Obfuscation: Attacking the State of the Art in Authorship Verification
Martin Potthast | Matthias Hagen | Benno Stein
Working Notes of CLEF 2016 - Conference and Labs of the Evaluation forum, Évora, Portugal, 5-8 September, 2016

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Clustering by Authorship Within and Across Documents
Efstathios Stamatatos | Michael Tschuggnall | Ben Verhoeven | Walter Daelemans | Günther Specht | Benno Stein | Martin Potthast
Working Notes of CLEF 2016 - Conference and Labs of the Evaluation forum, Évora, Portugal, 5-8 September, 2016

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Overview of PAN'16 - New Challenges for Authorship Analysis: Cross-Genre Profiling, Clustering, Diarization, and Obfuscation
Paolo Rosso | Francisco M. Rangel Pardo | Martin Potthast | Efstathios Stamatatos | Michael Tschuggnall | Benno Stein
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 7th International Conference of the CLEF Association, CLEF 2016, Évora, Portugal, September 5-8, 2016, Proceedings

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Clickbait Detection
Martin Potthast | Sebastian Köpsel | Benno Stein | Matthias Hagen
Advances in Information Retrieval - 38th European Conference on IR Research, ECIR 2016, Padua, Italy, March 20-23, 2016. Proceedings

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Who Wrote the Web? Revisiting Influential Author Identification Research Applicable to Information Retrieval
Martin Potthast | Sarah Braun | Tolga Buz | Fabian Duffhauss | Florian Friedrich | Jörg Marvin Gülzow | Jakob Köhler | Winfried Lötzsch | Fabian Müller | Maike Elisa Müller | Robert Paßmann | Bernhard Reinke | Lucas Rettenmeier | Thomas Rometsch | Timo Sommer | Michael Träger | Sebastian Wilhelm | Benno Stein | Efstathios Stamatatos | Matthias Hagen
Advances in Information Retrieval - 38th European Conference on IR Research, ECIR 2016, Padua, Italy, March 20-23, 2016. Proceedings

2015

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Report on the Evaluation-as-a-Service (EaaS) Expert Workshop
Frank Hopfgartner | Allan Hanbury | Henning Müller | Noriko Kando | Simon Mercer | Jayashree Kalpathy-Cramer | Martin Potthast | Tim Gollub | Anastasia Krithara | Jimmy Lin | Krisztian Balog | Ivan Eggel
2015 Volume 49 Issue 1

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Towards Vandalism Detection in Knowledge Bases: Corpus Construction and Analysis
Stefan Heindorf | Martin Potthast | Benno Stein | Gregor Engels
Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval, Santiago, Chile, August 9-13, 2015

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Overview of the PAN/CLEF 2015 Evaluation Lab
Efstathios Stamatatos | Martin Potthast | Francisco M. Rangel Pardo | Paolo Rosso | Benno Stein
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 6th International Conference of the CLEF Association, CLEF 2015, Toulouse, France, September 8-11, 2015, Proceedings

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Towards Data Submissions for Shared Tasks: First Experiences for the Task of Text Alignment
Martin Potthast | Steve Goering | Paolo Rosso | Benno Stein
Working Notes of CLEF 2015 - Conference and Labs of the Evaluation forum, Toulouse, France, September 8-11, 2015

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Source Retrieval for Plagiarism Detection from Large Web Corpora: Recent Approaches
Matthias Hagen | Martin Potthast | Benno Stein
Working Notes of CLEF 2015 - Conference and Labs of the Evaluation forum, Toulouse, France, September 8-11, 2015

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Overview of the Author Identification Task at PAN 2015
Efstathios Stamatatos | Walter Daelemans | Ben Verhoeven | Patrick Juola | Aurelio López-López | Martin Potthast | Benno Stein
Working Notes of CLEF 2015 - Conference and Labs of the Evaluation forum, Toulouse, France, September 8-11, 2015

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Overview of the 3rd Author Profiling Task at PAN 2015
Francisco M. Rangel Pardo | Fabio Celli | Paolo Rosso | Martin Potthast | Benno Stein | Walter Daelemans
Working Notes of CLEF 2015 - Conference and Labs of the Evaluation forum, Toulouse, France, September 8-11, 2015

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Twitter Sentiment Detection via Ensemble Classification Using Averaged Confidence Scores
Matthias Hagen | Martin Potthast | Michel Büchner | Benno Stein
Advances in Information Retrieval - 37th European Conference on IR Research, ECIR 2015, Vienna, Austria, March 29 - April 2, 2015. Proceedings

2014

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Improving the Reproducibility of PAN's Shared Tasks: - Plagiarism Detection, Author Identification, and Author Profiling
Martin Potthast | Tim Gollub | Francisco M. Rangel Pardo | Paolo Rosso | Efstathios Stamatatos | Benno Stein
Information Access Evaluation. Multilinguality, Multimodality, and Interaction - 5th International Conference of the CLEF Initiative, CLEF 2014, Sheffield, UK, September 15-18, 2014. Proceedings

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Overview of the Author Profiling Task at PAN 2014
Francisco M. Rangel Pardo | Paolo Rosso | Irina Chugur | Martin Potthast | Martin Trenkmann | Benno Stein | Ben Verhoeven | Walter Daelemans
Working Notes for CLEF 2014 Conference, Sheffield, UK, September 15-18, 2014

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Overview of the Author Identification Task at PAN 2014
Efstathios Stamatatos | Walter Daelemans | Ben Verhoeven | Benno Stein | Martin Potthast | Patrick Juola | Miguel A. Sánchez-Pérez | Alberto Barrón-Cedeño
Working Notes for CLEF 2014 Conference, Sheffield, UK, September 15-18, 2014

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Overview of the 6th International Competition on Plagiarism Detection
Martin Potthast | Matthias Hagen | Anna Beyer | Matthias Busse | Martin Tippmann | Paolo Rosso | Benno Stein
Working Notes for CLEF 2014 Conference, Sheffield, UK, September 15-18, 2014

2013

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Paraphrase acquisition via crowdsourcing and machine learning
Steven Burrows | Martin Potthast | Benno Stein
2013 Volume 4 Issue 3

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Towards Optimum Query Segmentation: In Doubt Without
Matthias Hagen | Martin Potthast | Anna Beyer | Benno Stein
Proceedings of the 13th Dutch-Belgian Workshop on Information Retrieval, Delft, The Netherlands, April 26th, 2013

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Overview of the 5th International Competition on Plagiarism Detection
Martin Potthast | Matthias Hagen | Tim Gollub | Martin Tippmann | Johannes Kiesel | Paolo Rosso | Efstathios Stamatatos | Benno Stein
Working Notes for CLEF 2013 Conference , Valencia, Spain, September 23-26, 2013

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Recent Trends in Digital Text Forensics and Its Evaluation - Plagiarism Detection, Author Identification, and Author Profiling
Tim Gollub | Martin Potthast | Anna Beyer | Matthias Busse | Francisco M. Rangel Pardo | Paolo Rosso | Efstathios Stamatatos | Benno Stein
Information Access Evaluation. Multilinguality, Multimodality, and Visualization - 4th International Conference of the CLEF Initiative, CLEF 2013, Valencia, Spain, September 23-26, 2013. Proceedings

2012

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Information Retrieval in the Commentsphere
Martin Potthast | Benno Stein | Fabian Loose | Steffen Becker
2012 Volume 3 Issue 4

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Overview of the 4th International Competition on Plagiarism Detection
Martin Potthast | Tim Gollub | Matthias Hagen | Johannes Kiesel | Maximilian Michel | Arnd Oberländer | Martin Tippmann | Alberto Barrón-Cedeño | Parth Gupta | Paolo Rosso | Benno Stein
CLEF 2012 Evaluation Labs and Workshop, Online Working Notes, Rome, Italy, September 17-20, 2012

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Webis at the TREC 2012 Session Track
Matthias Hagen | Martin Potthast | Matthias Busse | Jakob Gomoll | Jannis Harder | Benno Stein
Proceedings of The Twenty-First Text REtrieval Conference, TREC 2012, Gaithersburg, Maryland, USA, November 6-9, 2012

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ChatNoir: a search engine for the ClueWeb09 corpus
Martin Potthast | Matthias Hagen | Benno Stein | Jan Graßegger | Maximilian Michel | Martin Tippmann | Clement Welsch
The 35th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '12, Portland, OR, USA, August 12-16, 2012

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Towards optimum query segmentation: in doubt without
Matthias Hagen | Martin Potthast | Anna Beyer | Benno Stein
21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012

2011

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Fourth international workshop on uncovering plagiarism, authorship, and social software misuse
Benno Stein | Martin Potthast | Paolo Rosso | Alberto Barrón-Cedeño | Efstathios Stamatatos | Moshe Koppel
2011 Volume 45 Issue 1

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Overview of the 3rd International Competition on Plagiarism Detection
Martin Potthast | Andreas Eiselt | Alberto Barrón-Cedeño | Benno Stein | Paolo Rosso
CLEF 2011 Labs and Workshop, Notebook Papers, 19-22 September 2011, Amsterdam, The Netherlands

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Overview of the 2nd International Competition on Wikipedia Vandalism Detection
Martin Potthast | Teresa Holfeld
CLEF 2011 Labs and Workshop, Notebook Papers, 19-22 September 2011, Amsterdam, The Netherlands

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Query segmentation revisited
Matthias Hagen | Martin Potthast | Benno Stein | Christof Bräutigam
Proceedings of the 20th International Conference on World Wide Web, WWW 2011, Hyderabad, India, March 28 - April 1, 2011

2010

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Overview of the 2nd International Competition on Plagiarism Detection
Martin Potthast | Alberto Barrón-Cedeño | Andreas Eiselt | Benno Stein | Paolo Rosso
CLEF 2010 LABs and Workshops, Notebook Papers, 22-23 September 2010, Padua, Italy

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Overview of the 1st International Competition on Wikipedia Vandalism Detection
Martin Potthast | Benno Stein | Teresa Holfeld
CLEF 2010 LABs and Workshops, Notebook Papers, 22-23 September 2010, Padua, Italy

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The power of naive query segmentation
Matthias Hagen | Martin Potthast | Benno Stein | Christof Bräutigam
Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010

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Crowdsourcing a wikipedia vandalism corpus
Martin Potthast
Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010

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Towards comment-based cross-media retrieval
Martin Potthast | Benno Stein | Steffen Becker
Proceedings of the 19th International Conference on World Wide Web, WWW 2010, Raleigh, North Carolina, USA, April 26-30, 2010

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Netspeak - Assisting Writers in Choosing Words
Martin Potthast | Martin Trenkmann | Benno Stein
Advances in Information Retrieval, 32nd European Conference on IR Research, ECIR 2010, Milton Keynes, UK, March 28-31, 2010. Proceedings

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Opinion Summarization of Web Comments
Martin Potthast | Steffen Becker
Advances in Information Retrieval, 32nd European Conference on IR Research, ECIR 2010, Milton Keynes, UK, March 28-31, 2010. Proceedings

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Cross-Language High Similarity Search: Why No Sub-linear Time Bound Can Be Expected
Maik Anderka | Benno Stein | Martin Potthast
Advances in Information Retrieval, 32nd European Conference on IR Research, ECIR 2010, Milton Keynes, UK, March 28-31, 2010. Proceedings

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Retrieving Customary Web Language to Assist Writers
Benno Stein | Martin Potthast | Martin Trenkmann
Advances in Information Retrieval, 32nd European Conference on IR Research, ECIR 2010, Milton Keynes, UK, March 28-31, 2010. Proceedings

2009

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Measuring the descriptiveness of web comments
Martin Potthast
Proceedings of the 32nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2009, Boston, MA, USA, July 19-23, 2009

2008

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Automatic Vandalism Detection in Wikipedia
Martin Potthast | Benno Stein | Robert Gerling
Advances in Information Retrieval , 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings

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A Wikipedia-Based Multilingual Retrieval Model
Martin Potthast | Benno Stein | Maik Anderka
Advances in Information Retrieval , 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings

2007

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Wikipedia in the pocket: indexing technology for near-duplicate detection and high similarity search
Martin Potthast
SIGIR 2007: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Amsterdam, The Netherlands, July 23-27, 2007

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Strategies for retrieving plagiarized documents
Benno Stein | Sven Meyer zu Eissen | Martin Potthast
SIGIR 2007: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Amsterdam, The Netherlands, July 23-27, 2007