IR
Anthology
Community
Avi
Arampatzis
2025
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DUTH at CLEF JOKER 2025 Tasks 2 and 3: Translating Puns and Proper Names with Neural Approaches.
Georgios Arampatzis
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Avi Arampatzis
Working Notes of the Conference and Labs of the Evaluation Forum, CLEF 2025, Madrid, Spain, 9-12 September 2025.
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DUTH at CLEF 2025 SimpleText Track: Tackling Scientific Text Simplification and Hallucination Detection.
Georgios Arampatzis
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Avi Arampatzis
Working Notes of the Conference and Labs of the Evaluation Forum, CLEF 2025, Madrid, Spain, 9-12 September 2025.
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DUTH at EXIST 2025: Multilingual Sexism Detection with Soft Labels and Transformers.
Georgios Arampatzis
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Vasileios Perifanis
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Symeon Symeonidis
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Avi Arampatzis
Working Notes of the Conference and Labs of the Evaluation Forum, CLEF 2025, Madrid, Spain, 9-12 September 2025.
2023
doi
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Experimental IR Meets Multilinguality, Multimodality, and Interaction - 14th International Conference of the CLEF Association, CLEF 2023, Thessaloniki, Greece, September 18-21, 2023, Proceedings
Conference and Labs of the Evaluation Forum (CLEF) 2023
doi
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Report on the 14th Conference and Labs of the Evaluation Forum (CLEF 2023): Experimental IR Meets Multilinguality, Multimodality, and Interaction.
Mohammad Aliannejadi
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Avi Arampatzis
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Guglielmo Faggioli
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Nicola Ferro
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Anastasia Giachanou
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Evangelos Kanoulas
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Dan Li
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Theodora Tsikrika
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Michalis Vlachos
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Stefanos Vrochidis
SIGIR Forum 2023 Volume 57 Issue 2
2021
doi
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Pseudo relevance feedback optimization.
Avi Arampatzis
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Georgios Peikos
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Symeon Symeonidis
Discover Computing 2021 Volume 24 Issue 4-5
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Transfer Learning for Automated Responses to the BDI Questionnaire.
Christoforos Spartalis
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George Drosatos
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Avi Arampatzis
Proceedings of the Working Notes of CLEF 2021 - Conference and Labs of the Evaluation Forum, Bucharest, Romania, September 21st - to - 24th, 2021.
2020
doi
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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
doi
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Report on CLEF 2020.
Avi Arampatzis
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Linda Cappellato
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Carsten Eickhoff
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Nicola Ferro
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Hideo Joho
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Evangelos Kanoulas
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Christina Lioma
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Aurélie Névéol
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Theodora Tsikrika
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Stefanos Vrochidis
SIGIR Forum 2020 Volume 54 Issue 2
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DUTh at TREC 2020 Conversational Assistance Track.
Michalis Fotiadis
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Georgios Peikos
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Symeon Symeonidis
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Avi Arampatzis
Proceedings of the Twenty-Ninth Text REtrieval Conference, TREC 2020, Virtual Event [Gaithersburg, Maryland, USA], November 16-20, 2020.
2019
doi
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Language models and fusion for authorship attribution.
Olga Fourkioti
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Symeon Symeonidis
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Avi Arampatzis
Information Processing and Management 2019 Volume 56 Issue 6
2018
doi
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Suggesting Points-of-Interest via Content-Based, Collaborative, and Hybrid Fusion Methods in Mobile Devices.
Avi Arampatzis
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Georgios Kalamatianos
ACM Transactions on Information Systems (TOIS) 2018 Volume 36 Issue 3
2016
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DUTh at the ImageCLEF 2016 Image Annotation Task: Content Selection.
Georgios Barlas
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Maria Ntonti
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Avi Arampatzis
Working Notes of CLEF 2016 - Conference and Labs of the Evaluation forum, Évora, Portugal, 5-8 September, 2016.
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Augmenting Medical Queries with UMLS Concepts via MetaMap.
Christopher Agrafiotes
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Avi Arampatzis
Proceedings of The Twenty-Fifth Text REtrieval Conference, TREC 2016, Gaithersburg, Maryland, USA, November 15-18, 2016
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Recommending Points-of-Interest via Weighted kNN, Rated Rocchio, and Borda Count Fusion.
Georgios Kalamatianos
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Avi Arampatzis
Proceedings of The Twenty-Fifth Text REtrieval Conference, TREC 2016, Gaithersburg, Maryland, USA, November 15-18, 2016
2015
doi
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Versatile Query Scrambling for Private Web Search.
Avi Arampatzis
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George Drosatos
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Pavlos S. Efraimidis
Discover Computing 2015 Volume 18 Issue 4
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DUTH at TREC 2015 Clinical Decision Support Track.
George Drosatos
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Stefanos Roumeliotis
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Eleni Kaldoudi
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Avi Arampatzis
Proceedings of The Twenty-Fourth Text REtrieval Conference, TREC 2015, Gaithersburg, Maryland, USA, November 17-20, 2015
2013
doi
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Dynamic two-stage image retrieval from large multimedia databases.
Avi Arampatzis
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Konstantinos Zagoris
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Savvas A. Chatzichristofis
Information Processing and Management 2013 Volume 49 Issue 1
doi
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A query scrambler for search privacy on the internet.
Avi Arampatzis
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Pavlos S. Efraimidis
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George Drosatos
Discover Computing 2013 Volume 16 Issue 6
doi
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A Versatile Tool for Privacy-Enhanced Web Search.
Avi Arampatzis
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George Drosatos
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Pavlos S. Efraimidis
Advances in Information Retrieval - 35th European Conference on IR Research, ECIR 2013, Moscow, Russia, March 24-27, 2013. Proceedings
doi
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On CORI Results Merging.
Ilya Markov
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Avi Arampatzis
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Fabio Crestani
Advances in Information Retrieval - 35th European Conference on IR Research, ECIR 2013, Moscow, Russia, March 24-27, 2013. Proceedings
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DUTH at TREC 2013 Contextual Suggestion Track.
George Drosatos
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Giorgos Stamatelatos
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Avi Arampatzis
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Pavlos S. Efraimidis
Proceedings of The Twenty-Second Text REtrieval Conference, TREC 2013, Gaithersburg, Maryland, USA, November 19-22, 2013
2012
doi
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Unsupervised linear score normalization revisited.
Ilya Markov
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Avi Arampatzis
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Fabio Crestani
The 35th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '12, Portland, OR, USA, August 12-16, 2012
2011
doi
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Modeling score distributions in information retrieval.
Avi Arampatzis
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Stephen Robertson
Discover Computing 2011 Volume 14 Issue 1
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DUTH at ImageCLEF 2011 Wikipedia Retrieval.
Avi Arampatzis
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Konstantinos Zagoris
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Savvas A. Chatzichristofis
CLEF 2011 Labs and Workshop, Notebook Papers, 19-22 September 2011, Amsterdam, The Netherlands
doi
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Enhancing Deniability against Query-Logs.
Avi Arampatzis
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Pavlos S. Efraimidis
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George Drosatos
Advances in Information Retrieval - 33rd European Conference on IR Research, ECIR 2011, Dublin, Ireland, April 18-21, 2011. Proceedings
doi
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Dynamic Two-Stage Image Retrieval from Large Multimodal Databases.
Avi Arampatzis
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Konstantinos Zagoris
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Savvas A. Chatzichristofis
Advances in Information Retrieval - 33rd European Conference on IR Research, ECIR 2011, Dublin, Ireland, April 18-21, 2011. Proceedings
doi
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Fusion vs. Two-Stage for Multimodal Retrieval.
Avi Arampatzis
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Konstantinos Zagoris
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Savvas A. Chatzichristofis
Advances in Information Retrieval - 33rd European Conference on IR Research, ECIR 2011, Dublin, Ireland, April 18-21, 2011. Proceedings
doi
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Bag-of-visual-words vs global image descriptors on two-stage multimodal retrieval.
Savvas A. Chatzichristofis
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Konstantinos Zagoris
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Avi Arampatzis
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011
doi
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The TREC files: the (ground) truth is out there.
Savvas A. Chatzichristofis
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Konstantinos Zagoris
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Avi Arampatzis
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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Multimedia Search with Noisy Modalities: Fusion and Multistage Retrieval.
Avi Arampatzis
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Savvas A. Chatzichristofis
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Konstantinos Zagoris
CLEF 2010 LABs and Workshops, Notebook Papers, 22-23 September 2010, Padua, Italy
doi
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An Empirical Study of Query Specificity.
Avi Arampatzis
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Jaap Kamps
Advances in Information Retrieval, 32nd European Conference on IR Research, ECIR 2010, Milton Keynes, UK, March 28-31, 2010. Proceedings
doi
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Late fusion of compact composite descriptorsfor retrieval from heterogeneous image databases.
Savvas A. Chatzichristofis
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Avi Arampatzis
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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DUTH Does Probabilities of Relevance at the Legal Track.
Dim P. Papadopoulos
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Vicky S. Kalogeiton
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Avi Arampatzis
Proceedings of The Nineteenth Text REtrieval Conference, TREC 2010, Gaithersburg, Maryland, USA, November 16-19, 2010
2009
doi
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A signal-to-noise approach to score normalization.
Avi Arampatzis
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Jaap Kamps
Proceedings of the 18th ACM Conference on Information and Knowledge Management, CIKM 2009, Hong Kong, China, November 2-6, 2009
doi
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Score Distributions in Information Retrieval.
Avi Arampatzis
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Stephen Robertson
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Jaap Kamps
Advances in Information Retrieval Theory, Second International Conference on the Theory of Information Retrieval, ICTIR 2009, Cambridge, UK, September 10-12, 2009, Proceedings
doi
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Where to stop reading a ranked list?: threshold optimization using truncated score distributions.
Avi Arampatzis
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Jaap Kamps
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Stephen Robertson
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
doi
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A study of query length.
Avi Arampatzis
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Jaap Kamps
Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2008, Singapore, July 20-24, 2008
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Where to Stop Reading a Ranked List?
Avi Arampatzis
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Jaap Kamps
Proceedings of The Seventeenth Text REtrieval Conference, TREC 2008, Gaithersburg, Maryland, USA, November 18-21, 2008
2007
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Unified Access to Heterogeneous Data in Cultural Heritage.
Marijn Koolen
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Avi Arampatzis
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Jaap Kamps
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Vincent de Keijzer
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Nir Nussbaum
Computer-Assisted Information Retrieval (Recherche d'Information et ses Applications) - RIAO 2007, 8th International Conference, Carnegie Mellon University, Pittsburgh, PA, USA, May 30 - June 1, 2007. Proceedings, CD-ROM
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Access to Legal Documents: Exact Match, Best Match, and Combinations.
Avi Arampatzis
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Jaap Kamps
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Martijn Kooken
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Nir Nussbaum
Proceedings of The Sixteenth Text REtrieval Conference, TREC 2007, Gaithersburg, Maryland, USA, November 5-9, 2007
2001
doi
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The Score-Distributional Threshold Optimization for Adaptive Binary Classification Tasks.
Avi Arampatzis
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André van Hameren
SIGIR 2001: Proceedings of the 24th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, September 9-13, 2001, New Orleans, Louisiana, USA
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Unbiased S-D Threshold Optimization, Initial Query Degradation, Decay, and Incrementality, for Adaptive Document Filtering.
Avi Arampatzis
Proceedings of The Tenth Text REtrieval Conference, TREC 2001, Gaithersburg, Maryland, USA, November 13-16, 2001
2000
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Term Weighting for Filtering based on Distribution of Terms over Time.
Avi Arampatzis
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Theo P. van der Weide
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Cornelis H. A. Koster
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Patrick van Bommel
Computer-Assisted Information Retrieval (Recherche d'Information et ses Applications) - RIAO 2000, 6th International Conference, College de France, France, April 12-14, 2000. Proceedings
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Incrementality, Half-life, and Threshold Optimization for Adaptive Document Filtering.
Avi Arampatzis
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Jean Beney
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Cornelis H. A. Koster
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Theo P. van der Weide
Proceedings of The Ninth Text REtrieval Conference, TREC 2000, Gaithersburg, Maryland, USA, November 13-16, 2000
1998
doi
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Phase-Based Information Retrieval.
Avi Arampatzis
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T. Tsoris
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Cornelis H. A. Koster
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Theo P. van der Weide
Information Processing and Management 1998 Volume 34 Issue 6
1997
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IRENA: Information Retrieval Engine based on Natural Language Analysis.
Avi Arampatzis
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T. Tsoris
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Cornelis H. A. Koster
Computer-Assisted Information Retrieval (Recherche d'Information et ses Applications) - RIAO 1997, 5th International Conference, McGill University, Montreal, Canada, June 25-27, 1997. Proceedings