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

doi dblp

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

doi dblp

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.

doi dblp

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

doi dblp

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

doi dblp

Content-aware Neural Hashing for Cold-start Recommendation.

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

doi dblp

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.

doi dblp

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.

doi dblp

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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Power Law Distributions in Information Retrieval.

Casper Petersen|Jakob Grue Simonsen|Christina Lioma

ACM Transactions on Information Systems (TOIS) 2016 Volume 34 Issue 2

doi dblp

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

doi dblp

Ensemble Learned Vaccination Uptake Prediction using Web Search Queries.

Niels Dalum Hansen|Xiaohua Hu|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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

Preliminary study of technical terminology for the retrieval of scientific book metadata records.

Birger Larsen|Christina Lioma|Ingo Frommholz|Hinrich Schütze

The 35th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '12, Portland, OR, USA, August 12-16, 2012

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

Sense discrimination for physics retrieval.

Christina Lioma|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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

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

doi dblp

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.