2023

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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

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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

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
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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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

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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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Multi-head Self-attention with Role-Guided Masks
Dongsheng Wang | Casper Hansen | Lucas Chaves Lima | Christian Hansen | Maria Maistro | Jakob Grue Simonsen | Christina Lioma
Advances in Information Retrieval - 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 - April 1, 2021, Proceedings, Part II

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
2020 Volume 54 Issue 2

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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

ICTIR '20: The 2020 ACM SIGIR International Conference on the Theory of Information Retrieval, Virtual Event, Norway, September 14-17, 2020

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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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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

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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

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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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Experimental IR Meets Multilinguality, Multimodality, and Interaction - 11th International Conference of the CLEF Association, CLEF 2020, Thessaloniki, Greece, September 22-25, 2020, Proceedings

Experimental IR Meets Multilinguality, Multimodality, and Interaction - 11th International Conference of the CLEF Association, CLEF 2020, Thessaloniki, Greece, September 22-25, 2020, Proceedings

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 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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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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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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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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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
2016 Volume 50 Issue 1

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Power Law Distributions in Information Retrieval
Casper Petersen | Jakob Grue Simonsen | Christina Lioma
2016 Volume 34 Issue 2

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On the Need for and Provision for an 'IDEAL' Scholarly Information Retrieval Test Collection
Birger Larsen | Christina Lioma
Proceedings of the Third Workshop on Bibliometric-enhanced Information Retrieval co-located with the 38th European Conference on Information Retrieval (ECIR 2016), Padova, Italy, March 20, 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 | Ingemar J. Cox | Yevgeny Seldin | 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

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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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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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Ensemble Learned Vaccination Uptake Prediction using Web Search Queries
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

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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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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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

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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

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 '13, Copenhagen, Denmark, September 29 - October 02, 2013

2012

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Report on TBAS 2012: workshop on task-based and aggregated search
Birger Larsen | Christina Lioma | Arjen P. de Vries
2012 Volume 46 Issue 1

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Graph-based term weighting for information retrieval
Roi Blanco | Christina Lioma
2012 Volume 15 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
2012 Volume 48 Issue 6

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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

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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

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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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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

2011

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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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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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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

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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
2009 Volume 12 Issue 3

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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

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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

2008

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

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

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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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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

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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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

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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
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
Accessing Multilingual Information Repositories, 6th Workshop of the Cross-Language Evalution Forum, CLEF 2005, Vienna, Austria, 21-23 September, 2005, Revised Selected Papers

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

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