Frank Hopfgartner

2026

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Automating Computational Reproducibility in Social Science: Comparing Prompt-Based and Agent-Based Approaches.
Syed Mehtab Hussain Shah|Frank Hopfgartner|Arnim Bleier
Companion Proceedings of the ACM Web Conference 2026, WWW Companion 2026, Dubai, United Arab Emirates, 29 June 2026 - 3 July 2026

2024

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Proceedings of the 2024 ACM SIGIR Conference on Human Information Interaction and Retrieval, CHIIR 2024, Sheffield, United Kingdom, March 10-14, 2024
Conference on Human Information Interaction and Retrieval (CHIIR) 2024
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Towards improving user awareness of search engine biases: A participatory design approach.
Monica Lestari Paramita|Maria Kasinidou|Styliani Kleanthous|Paolo Rosso|Tsvi Kuflik|Frank Hopfgartner
Journal of the Association for Information Science and Technology (JASIST) 2024 Volume 75 Issue 5
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The Effect of Simulated Contextual Factors on Recipe Rating and Nutritional Intake Behaviour.
Mengyisong Zhao|Morgan Harvey|David Cameron|Frank Hopfgartner
Proceedings of the 2024 ACM SIGIR Conference on Human Information Interaction and Retrieval, CHIIR 2024, Sheffield, United Kingdom, March 10-14, 2024

2023

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Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023
International Conference on Information and Knowledge Management (CIKM) 2023
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Data science curriculum in the iField.
Yin Zhang|Dan Wu|Loni Hagen|Il-Yeol Song|Javed Mostafa|Sam Gyun Oh|Theresa D. Anderson|Chirag Shah|Bradley Wade Bishop|Frank Hopfgartner|Kai Eckert|Lisa Federer|Jeffrey S. Saltz
Journal of the Association for Information Science and Technology (JASIST) 2023 Volume 74 Issue 6

2022

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BASE: a Bias-Aware news Search Engine for improving user awareness (prototype).
Monica Lestari Paramita|Maria Kasinidou|Frank Hopfgartner
Proceedings of the Third International Conference on Design of Experimental Search & Information REtrieval Systems, San Jose, CA, USA, August 30-31, 2022.
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Overview of the NTCIR-16 Lifelog-4 Task.
Liting Zhou|Cathal Gurrin|Graham Healy|Hideo Joho|Binh T. Nguyen|Rami Albatal|Frank Hopfgartner|Duc-Tien Dang-Nguyen
Proceedings of the 16th NTCIR Conference on Evaluation of Information Access Technologies, NTCIR 2022, Tokyo, Japan, June 14-17, 2022

2021

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Report on the CyCAT winter school on fairness, accountability, transparency and ethics (FATE) in AI.
Styliani Kleanthous|Jahna Otterbacher|Jo Bates|Fausto Giunchiglia|Frank Hopfgartner|Tsvi Kuflik|Kalia Orphanou|Monica Lestari Paramita|Michael Rovatsos|Avital Shulner-Tal
SIGIR Forum 2021 Volume 55 Issue 1
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Do you see what I see? Images of the COVID-19 pandemic through the lens of Google.
Monica Lestari Paramita|Kalia Orphanou|Evgenia Christoforou|Jahna Otterbacher|Frank Hopfgartner
Information Processing and Management 2021 Volume 58 Issue 5
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A Comparative Study of Using Pre-trained Language Models for Toxic Comment Classification.
Zhixue Zhao|Ziqi Zhang|Frank Hopfgartner
Companion of The Web Conference 2021, Virtual Event / Ljubljana, Slovenia, April 19-23, 2021.

2020

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Leveraging digital forensics and data exploration to understand the creative work of a filmmaker: A case study of Stephen Dwoskin's digital archive.
Zoe Bartliff|Yunhyong Kim|Frank Hopfgartner|Guy Baxter
Information Processing and Management 2020 Volume 57 Issue 6
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Overview of NTCIR-15 MART.
Graham Healy|Tu-Khiem Le|Hideo Joho|Frank Hopfgartner|Cathal Gurrin
Proceedings of the 15th NTCIR Conference on Evaluation of Information Access Technologies, NTCIR 2020, Tokyo, Japan, December 8-11, 2020

2019

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Advances in Lifelog Data Organisation and Retrieval at the NTCIR-14 Lifelog-3 Task.
Cathal Gurrin|Hideo Joho|Frank Hopfgartner|Liting Zhou|Van-Tu Ninh|Tu-Khiem Le|Rami Albatal|Duc-Tien Dang-Nguyen|Graham Healy
NII Testbeds and Community for Information Access Research - 14th International Conference, NTCIR 2019, Tokyo, Japan, June 10-13, 2019, Revised Selected Papers
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Overview of the NTCIR-14 Lifelog-3 Task.
Cathal Gurrin|Hideo Joho|Frank Hopfgartner|Liting Zhou|Van-Tu Ninh|Tu-Khiem Le|Rami Albatal|Duc-Tien Dang-Nguyen|Graham Healy
Proceedings of the 14th NTCIR Conference on Evaluation of Information Access Technologies, NTCIR 2019, Tokyo, Japan, June 10-13, 2019

2017

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Interactive Search in Video & Lifelogging Repositories.
Frank Hopfgartner|Klaus Schoeffmann
Proceedings of the 2017 Conference on Conference Human Information Interaction and Retrieval, CHIIR 2017, Oslo, Norway, March 7-11, 2017
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CLEF 2017 NewsREEL Overview: A Stream-Based Recommender Task for Evaluation and Education.
Andreas Lommatzsch|Benjamin Kille|Frank Hopfgartner|Martha A. Larson|Torben Brodt|Jonas Seiler|Özlem Özgöbek
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 8th International Conference of the CLEF Association, CLEF 2017, Dublin, Ireland, September 11-14, 2017, Proceedings
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CLEF 2017 NewsREEL Overview: Offline and Online Evaluation of Stream-based News Recommender Systems.
Benjamin Kille|Andreas Lommatzsch|Frank Hopfgartner|Martha A. Larson|Torben Brodt
Working Notes of CLEF 2017 - Conference and Labs of the Evaluation Forum, Dublin, Ireland, September 11-14, 2017.
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Overview of NTCIR-13 Lifelog-2 Task.
Cathal Gurrin|Hideo Joho|Frank Hopfgartner|Liting Zhou|Duc-Tien Dang-Nguyen|Rashmi Gupta|Rami Albatal
The 13th NTCIR Conference, Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, December 5-8, 2017
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A Stream-based Resource for Multi-Dimensional Evaluation of Recommender Algorithms.
Benjamin Kille|Andreas Lommatzsch|Frank Hopfgartner|Martha A. Larson|Arjen P. de Vries
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

2016

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Report on the 1st International Workshop on Recent Trends in News Information Retrieval (NewsIR16).
Miguel Martinez-Alvarez|Udo Kruschwitz|Gabriella Kazai|Frank Hopfgartner|David P. A. Corney|Ricardo Campos|Dyaa Albakour
SIGIR Forum 2016 Volume 50 Issue 1
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GamifIR 2016: SIGIR 2016 Workshop on Gamification for Information Retrieval.
Michael Meder|Frank Hopfgartner|Gabriella Kazai|Udo Kruschwitz
SIGIR Forum 2016 Volume 50 Issue 2
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Overview of NewsREEL'16: Multi-dimensional Evaluation of Real-Time Stream-Recommendation Algorithms.
Benjamin Kille|Andreas Lommatzsch|Gebrekirstos G. Gebremeskel|Frank Hopfgartner|Martha A. Larson|Jonas Seiler|Davide Malagoli|András Serény|Torben Brodt|Arjen P. de Vries
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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CLEF NewsREEL 2016: Comparing Multi-dimensional Offline and Online Evaluation of News Recommender Systems.
Benjamin Kille|Andreas Lommatzsch|Frank Hopfgartner|Martha A. Larson|Jonas Seiler|Davide Malagoli|András Serény|Torben Brodt
Working Notes of CLEF 2016 - Conference and Labs of the Evaluation forum, Évora, Portugal, 5-8 September, 2016.
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First International Workshop on Recent Trends in News Information Retrieval (NewsIR'16).
Miguel Martinez-Alvarez|Udo Kruschwitz|Gabriella Kazai|Frank Hopfgartner|David P. A. Corney|Ricardo Campos|Dyaa Albakour
Advances in Information Retrieval - 38th European Conference on IR Research, ECIR 2016, Padua, Italy, March 20-23, 2016. Proceedings
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Overview of NTCIR-12 Lifelog Task.
Cathal Gurrin|Hideo Joho|Frank Hopfgartner|Liting Zhou|Rami Albatal
Proceedings of the 12th NTCIR Conference on Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, June 7-10, 2016
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NTCIR Lifelog: The First Test Collection for Lifelog Research.
Cathal Gurrin|Hideo Joho|Frank Hopfgartner|Liting Zhou|Rami Albatal
Proceedings of the 39th International ACM SIGIR conference on Research and Development in Information Retrieval, SIGIR 2016, Pisa, Italy, July 17-21, 2016
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Third International Workshop on Gamification for Information Retrieval (GamifIR 2016).
Michael Meder|Frank Hopfgartner|Gabriella Kazai|Udo Kruschwitz
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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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
SIGIR Forum 2015 Volume 49 Issue 1
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ECIR 2015 Workshop on Gamification for Information Retrieval (GamifIR'15).
Gabriella Kazai|Lumi|Frank Hopfgartner|Udo Kruschwitz|Michael Meder
SIGIR Forum 2015 Volume 49 Issue 1
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Benchmarking News Recommendations: The CLEF NewsREEL Use Case.
Frank Hopfgartner|Torben Brodt|Jonas Seiler|Benjamin Kille|Andreas Lommatzsch|Martha A. Larson|Roberto Turrin|András Serény
SIGIR Forum 2015 Volume 49 Issue 2
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Stream-Based Recommendations: Online and Offline Evaluation as a Service.
Benjamin Kille|Andreas Lommatzsch|Roberto Turrin|András Serény|Martha A. Larson|Torben Brodt|Jonas Seiler|Frank Hopfgartner
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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Overview of CLEF NewsREEL 2015: News Recommendation Evaluation Lab.
Benjamin Kille|Andreas Lommatzsch|Roberto Turrin|András Serény|Martha A. Larson|Torben Brodt|Jonas Seiler|Frank Hopfgartner
Working Notes of CLEF 2015 - Conference and Labs of the Evaluation forum, Toulouse, France, September 8-11, 2015.
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Join the Living Lab: Evaluating News Recommendations in Real-Time.
Frank Hopfgartner|Torben Brodt
Advances in Information Retrieval - 37th European Conference on IR Research, ECIR 2015, Vienna, Austria, March 29 - April 2, 2015. Proceedings
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Second International Workshop on Gamification for Information Retrieval (GamifIR'15).
Frank Hopfgartner|Gabriella Kazai|Udo Kruschwitz|Michael Meder|Mark Shovman
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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Proceedings of the First International Workshop on Gamification for Information Retrieval, GamifIR@ECIR '14, Amsterdam, The Netherlands, April 13, 2014
International Workshop on Gamification for Information Retrieval 2014
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The Video Browser Showdown: a live evaluation of interactive video search tools.
Klaus Schoeffmann|David Ahlström|Werner Bailer|Claudiu Cobârzan|Frank Hopfgartner|Kevin McGuinness|Cathal Gurrin|Christian Frisson|Duy-Dinh Le|Manfred del Fabro|Hongliang Bai|Wolfgang Weiss
International Journal of Multimedia Information Retrieval (IJMIR) 2014 Volume 3 Issue 2
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Benchmarking News Recommendations in a Living Lab.
Frank Hopfgartner|Benjamin Kille|Andreas Lommatzsch|Till Plumbaum|Torben Brodt|Tobias Heintz
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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Workshop on Gamification for Information Retrieval (GamifIR'14).
Frank Hopfgartner|Gabriella Kazai|Udo Kruschwitz|Michael Meder
Advances in Information Retrieval - 36th European Conference on IR Research, ECIR 2014, Amsterdam, The Netherlands, April 13-16, 2014. Proceedings
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DAIKnow: A Gamified Enterprise Bookmarking System.
Michael Meder|Till Plumbaum|Frank Hopfgartner
Advances in Information Retrieval - 36th European Conference on IR Research, ECIR 2014, Amsterdam, The Netherlands, April 13-16, 2014. Proceedings
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Shedding light on a living lab: the CLEF NEWSREEL open recommendation platform.
Torben Brodt|Frank Hopfgartner
Fifth Information Interaction in Context Symposium, IIiX '14, Regensburg, Germany, August 26-29, 2014
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Users' reading habits in online news portals.
Cagdas Esiyok|Benjamin Kille|Brijnesh Johannes Jain|Frank Hopfgartner|Sahin Albayrak
Fifth Information Interaction in Context Symposium, IIiX '14, Regensburg, Germany, August 26-29, 2014
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A Visualization Tool for Violent Scenes Detection.
Dominique Maniry|Esra Acar|Frank Hopfgartner|Sahin Albayrak
International Conference on Multimedia Retrieval, ICMR '14, Glasgow, United Kingdom - April 01 - 04, 2014

2013

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Report on the SIGIR 2013 workshop on benchmarking adaptive retrieval and recommender systems.
Pablo Castells|Frank Hopfgartner|Alan Said|Mounia Lalmas
SIGIR Forum 2013 Volume 47 Issue 2
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Workshop on benchmarking adaptive retrieval and recommender systems: BARS 2013.
Pablo Castells|Frank Hopfgartner|Alan Said|Mounia Lalmas
The 36th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '13, Dublin, Ireland - July 28 - August 01, 2013

2012

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Supporting browsing of user generated video on a tablet.
Frank Hopfgartner|David Scott|Jinlin Guo|Yang Yang|Cathal Gurrin|Alan F. Smeaton
International Conference on Multimedia Retrieval, ICMR '12, Hong Kong, China, June 5-8, 2012

2011

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Effects of Usage-Based Feedback on Video Retrieval: A Simulation-Based Study.
David Vallet|Frank Hopfgartner|Joemon M. Jose|Pablo Castells
ACM Transactions on Information Systems (TOIS) 2011 Volume 29 Issue 2

2010

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Personalised video retrieval: application of implicit feedback and semantic user profiles.
Frank Hopfgartner
SIGIR Forum 2010 Volume 44 Issue 2

2009

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AIR 2008: second international workshop on adaptive information retrieval.
Hideo Joho|Frank Hopfgartner|Joemon M. Jose|C. J. van Rijsbergen
SIGIR Forum 2009 Volume 43 Issue 1
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Supporting aspect-based video browsing: analysis of a user study.
Thierry Urruty|Frank Hopfgartner|David Hannah|Desmond Elliott|Joemon M. Jose
Proceedings of the 8th ACM International Conference on Image and Video Retrieval, CIVR 2009, Santorini Island, Greece, July 8-10, 2009
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Split and Merge Based Story Segmentation in News Videos.
Anuj Goyal|P. Punitha|Frank Hopfgartner|Joemon M. Jose
Advances in Information Retrieval, 31th European Conference on IR Research, ECIR 2009, Toulouse, France, April 6-9, 2009. Proceedings
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Diversity, Assortment, Dissimilarity, Variety: A Study of Diversity Measures Using Low Level Features for Video Retrieval.
Martin Halvey|P. Punitha|David Hannah|Robert Villa|Frank Hopfgartner|Anuj Goyal|Joemon M. Jose
Advances in Information Retrieval, 31th European Conference on IR Research, ECIR 2009, Toulouse, France, April 6-9, 2009. Proceedings

2008

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Use of Implicit Graph for Recommending Relevant Videos: A Simulated Evaluation.
David Vallet|Frank Hopfgartner|Joemon M. Jose
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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Evaluating the implicit feedback models for adaptive video retrieval.
Frank Hopfgartner|Joemon M. Jose
Proceedings of the 9th ACM SIGMM International Workshop on Multimedia Information Retrieval, MIR 2007, Augsburg, Bavaria, Germany, September 24-29, 2007