Christina Lioma

2026

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Predicting Document Relevance from Brain Recordings.
Vadym Gryshchuk|Maria Maistro|Christina Lioma|Tuukka Ruotsalo
ACM Transactions on Information Systems (TOIS) 2026 Volume 44 Issue 1
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Post-training Denoising of User Profiles with LLMs in Collaborative Filtering Recommendation.
Ervin Dervishaj|Maria Maistro|Tuukka Ruotsalo|Christina Lioma
Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part I
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Measuring Individual User Fairness with User Similarity and Effectiveness Disparity.
Theresia Veronika Rampisela|Maria Maistro|Tuukka Ruotsalo|Christina Lioma
Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part II

2025

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Feature Attribution Explanations of Session-Based Recommendations.
Simone Borg Bruun|Maria Maistro|Christina Lioma
Advances in Information Retrieval - 47th European Conference on Information Retrieval, ECIR 2025, Lucca, Italy, April 6-10, 2025, Proceedings, Part II
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Are Representation Disentanglement and Interpretability Linked in Recommendation Models? - A Critical Review and Reproducibility Study.
Ervin Dervishaj|Tuukka Ruotsalo|Maria Maistro|Christina Lioma
Advances in Information Retrieval - 47th European Conference on Information Retrieval, ECIR 2025, Lucca, Italy, April 6-10, 2025, Proceedings, Part IV
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An EEG Dataset of Word-level Brain Responses for Semantic Text Relevance.
Vadym Gryshchuk|Michiel M. A. Spapé|Maria Maistro|Christina Lioma|Tuukka Ruotsalo
Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025
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Joint Evaluation of Fairness and Relevance in Recommender Systems with Pareto Frontier.
Theresia Veronika Rampisela|Tuukka Ruotsalo|Maria Maistro|Christina Lioma
Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025- 2 May 2025

2024

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Can We Trust Recommender System Fairness Evaluation? The Role of Fairness and Relevance.
Theresia Veronika Rampisela|Tuukka Ruotsalo|Maria Maistro|Christina Lioma
Proceedings of the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2024, Washington DC, USA, July 14-18, 2024

2023

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Graph-Based Recommendation for Sparse and Heterogeneous User Interactions.
Simone Borg Bruun|Kacper Kenji Lesniak|Mirko Biasini|Vittorio Carmignani|Panagiotis Filianos|Christina Lioma|Maria Maistro
Advances in Information Retrieval - 45th European Conference on Information Retrieval, ECIR 2023, Dublin, Ireland, April 2-6, 2023, Proceedings, Part I
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Joint Extraction and Classification of Danish Competences for Job Matching.
Qiuchi Li|Christina Lioma
Advances in Information Retrieval - 45th European Conference on Information Retrieval, ECIR 2023, Dublin, Ireland, April 2-6, 2023, Proceedings, Part II

2022

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Complex-valued Neural Network-based Quantum Language Models.
Peng Zhang|Wenjie Hui|Benyou Wang|Donghao Zhao|Dawei Song|Christina Lioma|Jakob Grue Simonsen
ACM Transactions on Information Systems (TOIS) 2022 Volume 40 Issue 4

2021

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Principled Multi-Aspect Evaluation Measures of Rankings.
Maria Maistro|Lucas Chaves Lima|Jakob Grue Simonsen|Christina Lioma
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021
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Multi-head Self-attention with Role-Guided Masks.
Florence Cloppet|Dongsheng Wang|Casper Hansen|Christopher F. Beaulieu|Lucas Chaves Lima|Daniel L. Rubin|Florence Cloppet|Dongsheng Wang|Christian Hansen|Maria Maistro|Christopher F. Beaulieu|Casper Hansen|Jakob Grue Simonsen|Lucas Chaves Lima|Daniel L. Rubin|Christina Lioma
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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Projected Hamming Dissimilarity for Bit-Level Importance Coding in Collaborative Filtering.
Christian Hansen|Casper Hansen|Jakob Grue Simonsen|Christina Lioma
WWW '21: The Web Conference 2021, Virtual Event / Ljubljana, Slovenia, April 19-23, 2021.
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Unsupervised Multi-Index Semantic Hashing.
Christian Hansen|Casper Hansen|Jakob Grue Simonsen|Stephen Alstrup|Christina Lioma
WWW '21: The Web Conference 2021, Virtual Event / Ljubljana, Slovenia, April 19-23, 2021.

2020

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Experimental IR Meets Multilinguality, Multimodality, and Interaction - 11th International Conference of the CLEF Association, CLEF 2020, Thessaloniki, Greece, September 22-25, 2020, Proceedings
Conference and Labs of the Evaluation Forum (CLEF) 2020
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ICTIR '20: The 2020 ACM SIGIR International Conference on the Theory of Information Retrieval, Virtual Event, Norway, September 14-17, 2020
International Conference on the Theory of Information Retrieval (ICTIR) 2020
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Report on CLEF 2020.
Avi Arampatzis|Linda Cappellato|Carsten Eickhoff|Nicola Ferro|Hideo Joho|Evangelos Kanoulas|Christina Lioma|Aurélie Névéol|Theodora Tsikrika|Stefanos Vrochidis
SIGIR Forum 2020 Volume 54 Issue 2
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Fact Check-Worthiness Detection with Contrastive Ranking.
Casper Hansen|Christian Hansen|Jakob Grue Simonsen|Christina Lioma
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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Factuality Checking in News Headlines with Eye Tracking.
Christian Hansen|Casper Hansen|Jakob Grue Simonsen|Birger Larsen|Stephen Alstrup|Christina Lioma
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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Content-aware Neural Hashing for Cold-start Recommendation.
Peicheng Yu|Casper Hansen|Neil Shah|Christian Hansen|Jakob Grue Simonsen|Stephen Alstrup|Christina Lioma|Casper Hansen|Peicheng Yu|Christian Hansen|Neil Shah
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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Unsupervised Semantic Hashing with Pairwise Reconstruction.
Casper Hansen|Christian Hansen|Jakob Grue Simonsen|Stephen Alstrup|Christina Lioma
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020

2019

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Neural Weakly Supervised Fact Check-Worthiness Detection with Contrastive Sampling-Based Ranking Loss.
Casper Hansen|Christian Hansen|Jakob Grue Simonsen|Christina Lioma
Working Notes of CLEF 2019 - Conference and Labs of the Evaluation Forum, Lugano, Switzerland, September 9-12, 2019.
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Contextually Propagated Term Weights for Document Representation.
Casper Hansen|Christian Hansen|Stephen Alstrup|Jakob Grue Simonsen|Christina Lioma
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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Unsupervised Neural Generative Semantic Hashing.
Casper Hansen|Christian Hansen|Jakob Grue Simonsen|Stephen Alstrup|Christina Lioma
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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Neural Check-Worthiness Ranking with Weak Supervision: Finding Sentences for Fact-Checking.
Casper Hansen|Christian Hansen|Stephen Alstrup|Jakob Grue Simonsen|Christina Lioma
Companion of The 2019 World Wide Web Conference, WWW 2019, San Francisco, CA, USA, May 13-17, 2019.
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Contextual Compositionality Detection with External Knowledge Bases and Word Embeddings.
Dongsheng Wang|Qiuchi Li|Lucas Chaves Lima|Jakob Grue Simonsen|Christina Lioma
Companion of The 2019 World Wide Web Conference, WWW 2019, San Francisco, CA, USA, May 13-17, 2019.

2018

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The Copenhagen Team Participation in the Check-Worthiness Task of the Competition of Automatic Identification and Verification of Claims in Political Debates of the CLEF-2018 CheckThat! Lab.
Casper Hansen|Christian Hansen|Jakob Grue Simonsen|Christina Lioma
Working Notes of CLEF 2018 - Conference and Labs of the Evaluation Forum, Avignon, France, September 10-14, 2018.
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The Copenhagen Team Participation in the Factuality Task of the Competition of Automatic Identification and Verification of Claims in Political Debates of the CLEF-2018 Fact Checking Lab.
Dongsheng Wang|Jakob Grue Simonsen|Birger Larsen|Christina Lioma
Working Notes of CLEF 2018 - Conference and Labs of the Evaluation Forum, Avignon, France, September 10-14, 2018.

2017

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Smart City Analytics: Ensemble-Learned Prediction of Citizen Home Care.
Casper Hansen|Christian Hansen|Stephen Alstrup|Christina Lioma
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, CIKM 2017, Singapore, November 06 - 10, 2017
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Evaluation Measures for Relevance and Credibility in Ranked Lists.
Christina Lioma|Jakob Grue Simonsen|Birger Larsen
Proceedings of the ACM SIGIR International Conference on Theory of Information Retrieval, ICTIR 2017, Amsterdam, The Netherlands, October 1-4, 2017
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Seasonal Web Search Query Selection for Influenza-Like Illness (ILI) Estimation.
Niels Dalum Hansen|Kåre Mølbak|Ingemar J. Cox|Christina Lioma
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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Time-Series Adaptive Estimation of Vaccination Uptake Using Web Search Queries.
Niels Dalum Hansen|Kåre Mølbak|Ingemar J. Cox|Christina Lioma
Proceedings of the 26th International Conference on World Wide Web Companion, Perth, Australia, April 3-7, 2017

2016

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Report on ECIR 2016: 38th European Conference on Information Retrieval.
Nicola Ferro|Fabio Crestani|Marie-Francine Moens|Josiane Mothe|Fabrizio Silvestri|Jaana Kekäläinen|Paolo Rosso|Paul D. Clough|Gabriella Pasi|Christina Lioma|Stefano Mizzaro|Giorgio Maria Di Nunzio|Claudia Hauff|Omar Alonso|Pavel Serdyukov|Gianmaria Silvello
SIGIR Forum 2016 Volume 50 Issue 1
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Power Law Distributions in Information Retrieval.
Casper Petersen|Jakob Grue Simonsen|Christina Lioma
ACM Transactions on Information Systems (TOIS) 2016 Volume 34 Issue 2
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Multi-Dueling Bandits and Their Application to Online Ranker Evaluation.
Brian Brost|Yevgeny Seldin|Ingemar J. Cox|Christina Lioma
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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Ensemble Learned Vaccination Uptake Prediction using Web Search Queries.
Xiaohua Hu|Niels Dalum Hansen|Christina Lioma|Kåre Mølbak
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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Adaptive Distributional Extensions to DFR Ranking.
Casper Petersen|Jakob Grue Simonsen|Kalervo Järvelin|Christina Lioma
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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Exploiting the Bipartite Structure of Entity Grids for Document Coherence and Retrieval.
Christina Lioma|Fabien Tarissan|Jakob Grue Simonsen|Casper Petersen|Birger Larsen
Proceedings of the 2016 ACM on International Conference on the Theory of Information Retrieval, ICTIR 2016, Newark, DE, USA, September 12- 6, 2016
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An Improved Multileaving Algorithm for Online Ranker Evaluation.
Brian Brost|Iadh Ounis|Ingemar J. Cox|Yevgeny Seldin|Ingemar J. Cox|Iadh Ounis|Christina Lioma
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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The Impact of Using Combinatorial Optimisation for Static Caching of Posting Lists.
Casper Petersen|Jakob Grue Simonsen|Christina Lioma
Information Retrieval Technology - 11th Asia Information Retrieval Societies Conference, AIRS 2015, Brisbane, QLD, Australia, December 2-4, 2015. Proceedings
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A Hierarchical Recurrent Encoder-Decoder for Generative Context-Aware Query Suggestion.
Alessandro Sordoni|Yoshua Bengio|Hossein Vahabi|Christina Lioma|Jakob Grue Simonsen|Jian-Yun Nie
Proceedings of the 24th ACM International Conference on Information and Knowledge Management, CIKM 2015, Melbourne, VIC, Australia, October 19 - 23, 2015
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Entropy and Graph Based Modelling of Document Coherence using Discourse Entities: An Application to IR.
Casper Petersen|Christina Lioma|Jakob Grue Simonsen|Birger Larsen
Proceedings of the 2015 International Conference on The Theory of Information Retrieval, ICTIR 2015, Northampton, Massachusetts, USA, September 27-30, 2015
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Non-Compositional Term Dependence for Information Retrieval.
Christina Lioma|Jakob Grue Simonsen|Birger Larsen|Niels Dalum Hansen
Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval, Santiago, Chile, August 9-13, 2015

2014

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Temporal Context for Authorship Attribution - A Study of Danish Secondary Schools.
Niels Dalum Hansen|Christina Lioma|Birger Larsen|Stephen Alstrup
Multidisciplinary Information Retrieval - 7th Information Retrieval Facility Conference, IRFC 2014, Copenhagen, Denmark, November 10-12, 2014, Proceedings

2013

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International Conference on the Theory of Information Retrieval, ICTIR '13, Copenhagen, Denmark, September 29 - October 02, 2013
International Conference on the Theory of Information Retrieval (ICTIR) 2013

2012

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Graph-based term weighting for information retrieval.
Roi Blanco|Christina Lioma
Discover Computing 2012 Volume 15 Issue 1
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Report on TBAS 2012: workshop on task-based and aggregated search.
Birger Larsen|Christina Lioma|Arjen P. de Vries
SIGIR Forum 2012 Volume 46 Issue 1
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The tipping point: F-score as a function of the number of retrieved items.
Raf Guns|Christina Lioma|Birger Larsen
Information Processing and Management 2012 Volume 48 Issue 6
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An exploratory study into perceived task complexity, topic specificity and usefulness for integrated search.
Peter Ingwersen|Christina Lioma|Birger Larsen|Peiling Wang
Information Interaction in Context: 2012, IIix'12, Nijmegen, The Netherlands, August 21-24, 2012
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Preliminary experiments using subjective logic for the polyrepresentation of information needs.
Christina Lioma|Birger Larsen|Peter Ingwersen
Information Interaction in Context: 2012, IIix'12, Nijmegen, The Netherlands, August 21-24, 2012
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Preliminary study of technical terminology for the retrieval of scientific book metadata records.
Maria Heuss|Birger Larsen|Tanya Chowdhury|Christina Lioma|Maria Heuss|Birger Larsen|Christina Lioma|Tanya Chowdhury|Ingo Frommholz|James Allan|Ingo Frommholz|James Allan|Avishek Anand|Hinrich Schütze|Avishek Anand|Hinrich Schütze
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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Rhetorical relations for information retrieval.
Christina Lioma|Birger Larsen|Wei Lu
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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Fixed versus dynamic co-occurrence windows in TextRank term weights for information retrieval.
Wei Lu|Qikai Cheng|Christina Lioma
The 35th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '12, Portland, OR, USA, August 12-16, 2012

2011

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Rare Disease Diagnosis as an Information Retrieval Task.
Radu Dragusin|Paula Petcu|Christina Lioma|Birger Larsen|Henrik Jørgensen|Ole Winther
Advances in Information Retrieval Theory - Third International Conference, ICTIR 2011, Bertinoro, Italy, September 12-14, 2011. Proceedings
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User Perspectives on Query Difficulty.
Christina Lioma|Birger Larsen|Hinrich Schütze
Advances in Information Retrieval Theory - Third International Conference, ICTIR 2011, Bertinoro, Italy, September 12-14, 2011. Proceedings
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Expanding Queries with Term and Phrase Translations in Patent Retrieval.
Charles Jochim|Christina Lioma|Hinrich Schütze
Multidisciplinary Information Retrieval - Second Information Retrieval Facility Conference, IRFC 2011, Vienna, Austria, June 6, 2011. Proceedings
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Sense discrimination for physics retrieval.
Mark Stevenson|Christina Lioma|Christina Lioma|Mark Stevenson|Alok Kothari|Hinrich Schütze
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

2010

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Preliminary study into query translation for patent retrieval.
Charles Jochim|Christina Lioma|Hinrich Schütze|Steffen Koch|Thomas Ertl
Proceedings of the 3rd International Workshop on Patent Information Retrieval, PaIR '10, Toronto, ON, Canada, October 26, 2010
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A subjective logic formalisation of the principle of polyrepresentation for information needs.
Christina Lioma|Birger Larsen|Hinrich Schütze|Peter Ingwersen
Information Interaction in Context Symposium, IIiX 2010, New Brunswick, NJ, USA, August 18-21, 2010

2009

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Mixed monolingual homepage finding in 34 languages: the role of language script and search domain.
Roi Blanco|Christina Lioma
Discover Computing 2009 Volume 12 Issue 3
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Part of Speech Based Term Weighting for Information Retrieval.
Christina Lioma|Roi Blanco
Advances in Information Retrieval, 31th European Conference on IR Research, ECIR 2009, Toulouse, France, April 6-9, 2009. Proceedings
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A Logical Inference Approach to Query Expansion with Social Tags.
Christina Lioma|Roi Blanco|Marie-Francine Moens
Advances in Information Retrieval Theory, Second International Conference on the Theory of Information Retrieval, ICTIR 2009, Cambridge, UK, September 10-12, 2009, Proceedings
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A Belief Model of Query Difficulty That Uses Subjective Logic.
Christina Lioma|Roi Blanco|Raquel Mochales Palau|Marie-Francine Moens
Advances in Information Retrieval Theory, Second International Conference on the Theory of Information Retrieval, ICTIR 2009, Cambridge, UK, September 10-12, 2009, Proceedings

2008

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A syntactically-based query reformulation technique for information retrieval.
Christina Lioma|Iadh Ounis
Information Processing and Management 2008 Volume 44 Issue 1

2007

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Light Syntactically-Based Index Pruning for Information Retrieval.
Christina Lioma|Iadh Ounis
Advances in Information Retrieval, 29th European Conference on IR Research, ECIR 2007, Rome, Italy, April 2-5, 2007, Proceedings
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Random walk term weighting for information retrieval.
Roi Blanco|Christina Lioma
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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Extending Weighting Models with a Term Quality Measure.
Christina Lioma|Iadh Ounis
String Processing and Information Retrieval, 14th International Symposium, SPIRE 2007, Santiago, Chile, October 29-31, 2007, Proceedings

2006

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University of Glasgow at TREC 2006: Experiments in Terabyte and Enterprise Tracks with Terrier.
Christina Lioma|Craig Macdonald|Vassilis Plachouras|Jie Peng|Ben He|Iadh Ounis
Proceedings of the Fifteenth Text REtrieval Conference, TREC 2006, Gaithersburg, Maryland, USA, November 14-17, 2006

2005

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Applying Light Natural Language Processing to Ad-Hoc Cross Language Information Retrieval.
Christina Lioma|Craig Macdonald|Ben He|Vassilis Plachouras|Iadh Ounis
Accessing Multilingual Information Repositories, 6th Workshop of the Cross-Language Evalution Forum, CLEF 2005, Vienna, Austria, 21-23 September, 2005, Revised Selected Papers
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University of Glasgow at WebCLEF 2005: Experiments in Per-Field Normalisation and Language Specific Stemming.
Craig Macdonald|Vassilis Plachouras|Ben He|Christina Lioma|Iadh Ounis
Accessing Multilingual Information Repositories, 6th Workshop of the Cross-Language Evalution Forum, CLEF 2005, Vienna, Austria, 21-23 September, 2005, Revised Selected Papers
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Applying Light Natural Language Processing to Ad-Hoc Cross Language Information Retrieval.
Christina Lioma|Craig Macdonald|Ben He|Vassilis Plachouras|Iadh Ounis
Working Notes for CLEF 2005 Workshop co-located with the 9th European Conference on Digital Libraries (ECDL 2005), Wien, Austria, September 21-22, 2005.
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University of Glasgow at WebCLEF 2005: Experiments in per-field Normalisation and Language Specific Stemming.
Craig Macdonald|Vassilis Plachouras|Ben He|Christina Lioma|Iadh Ounis
Working Notes for CLEF 2005 Workshop co-located with the 9th European Conference on Digital Libraries (ECDL 2005), Wien, Austria, September 21-22, 2005.

2004

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The University of Glasgow at CLEF 2004: French Monolingual Information Retrieval with Terrier.
Christina Lioma|Ben He|Vassilis Plachouras|Iadh Ounis
Multilingual Information Access for Text, Speech and Images, 5th Workshop of the Cross-Language Evaluation Forum, CLEF 2004, Bath, UK, September 15-17, 2004, Revised Selected Papers
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The University of Glasgow at CLEF 2004: French Monolingual Information Retrieval with Terrier.
Christina Lioma|Ben He|Vassilis Plachouras|Iadh Ounis
Working Notes for CLEF 2004 Workshop co-located with the 8th European Conference on Digital Libraries (ECDL 2004), Bath, UK, September 15-17, 2004.