Valentin Jijkoun

2011

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DIR 2011: the eleventh Dutch-Belgian information retrieval workshop.
Corrado Boscarino|Katja Hofmann|Valentin Jijkoun|Edgar Meij|Maarten de Rijke|Wouter Weerkamp
SIGIR Forum 2011 Volume 45 Issue 1
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Bootstrapping subjectivity detection.
Valentin Jijkoun|Maarten de Rijke
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

2008

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Advances in Multilingual and Multimodal Information Retrieval, 8th Workshop of the Cross-Language Evaluation Forum, CLEF 2007, Budapest, Hungary, September 19-21, 2007, Revised Selected Papers
Conference and Labs of the Evaluation Forum (CLEF) 2008
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Overview of WebCLEF 2008.
Valentin Jijkoun|Maarten de Rijke
Evaluating Systems for Multilingual and Multimodal Information Access, 9th Workshop of the Cross-Language Evaluation Forum, CLEF 2008, Aarhus, Denmark, September 17-19, 2008, Revised Selected Papers
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Overview of WebCLEF 2008 (Draft).
Valentin Jijkoun|Maarten de Rijke
Working Notes for CLEF 2008 Workshop co-located with the 12th European Conference on Digital Libraries (ECDL 2008) , Aarhus, Denmark, September 17-19, 2008.
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The Impact of Named Entity Normalization on Information Retrieval for Question Answering.
Mahboob Alam Khalid|Valentin Jijkoun|Maarten de Rijke
Advances in Information Retrieval , 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings
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Named entity normalization in user generated content.
Valentin Jijkoun|Mahboob Alam Khalid|Maarten Marx|Maarten de Rijke
Proceedings of the Second Workshop on Analytics for Noisy Unstructured Text Data, AND 2008, Singapore, July 24, 2008

2007

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"More like these": growing entity classes from seeds.
Luís Sarmento|Valentin Jijkoun|Maarten de Rijke|Eugénio C. Oliveira
Proceedings of the Sixteenth ACM Conference on Information and Knowledge Management, CIKM 2007, Lisbon, Portugal, November 6-10, 2007
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Overview of the CLEF 2007 Multilingual Question Answering Track.
Danilo Giampiccolo|Pamela Forner|Jesús Herrera|Anselmo Peñas|Christelle Ayache|Corina Forascu|Valentin Jijkoun|Petya Osenova|Paulo Rocha|Bogdan Sacaleanu|Richard F. E. Sutcliffe
Advances in Multilingual and Multimodal Information Retrieval, 8th Workshop of the Cross-Language Evaluation Forum, CLEF 2007, Budapest, Hungary, September 19-21, 2007, Revised Selected Papers
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The University of Amsterdam's Question Answering System at QA@CLEF 2007.
Valentin Jijkoun|Katja Hofmann|David Ahn|Mahboob Alam Khalid|Joris van Rantwijk|Maarten de Rijke|Erik F. Tjong Kim Sang
Advances in Multilingual and Multimodal Information Retrieval, 8th Workshop of the Cross-Language Evaluation Forum, CLEF 2007, Budapest, Hungary, September 19-21, 2007, Revised Selected Papers
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Overview of WebCLEF 2007.
Valentin Jijkoun|Maarten de Rijke
Advances in Multilingual and Multimodal Information Retrieval, 8th Workshop of the Cross-Language Evaluation Forum, CLEF 2007, Budapest, Hungary, September 19-21, 2007, Revised Selected Papers
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Using Centrality to Rank Web Snippets.
Valentin Jijkoun|Maarten de Rijke
Advances in Multilingual and Multimodal Information Retrieval, 8th Workshop of the Cross-Language Evaluation Forum, CLEF 2007, Budapest, Hungary, September 19-21, 2007, Revised Selected Papers
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Overview of the CLEF 2007 Multilingual Question Answering Track.
Danilo Giampiccolo|Pamela Forner|Anselmo Peñas|Christelle Ayache|Dan Cristea|Valentin Jijkoun|Petya Osenova|Paulo Rocha|Bogdan Sacaleanu|Richard F. E. Sutcliffe
Working Notes for CLEF 2007 Workshop co-located with the 11th European Conference on Digital Libraries (ECDL 2007), Budapest, Hungary, September 19-21, 2007.
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The University of Amsterdam at CLEF@QA 2007.
Valentin Jijkoun|Katja Hofmann|David Ahn|Mahboob Alam Khalid|Joris van Rantwijk|Maarten de Rijke|Erik F. Tjong Kim Sang
Working Notes for CLEF 2007 Workshop co-located with the 11th European Conference on Digital Libraries (ECDL 2007), Budapest, Hungary, September 19-21, 2007.
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Overview of WebCLEF 2007.
Valentin Jijkoun|Maarten de Rijke
Working Notes for CLEF 2007 Workshop co-located with the 11th European Conference on Digital Libraries (ECDL 2007), Budapest, Hungary, September 19-21, 2007.
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The University of Amsterdam at WebCLEF 2007: Using Centrality to Rank Web Snippets.
Valentin Jijkoun|Maarten de Rijke
Working Notes for CLEF 2007 Workshop co-located with the 11th European Conference on Digital Libraries (ECDL 2007), Budapest, Hungary, September 19-21, 2007.
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The University of Amsterdam at the TREC 2007 QA Track.
Katja Hofmann|Valentin Jijkoun|Mahboob Alam Khalid|Joris van Rantwijk|Erik F. Tjong Kim Sang
Proceedings of The Sixteenth Text REtrieval Conference, TREC 2007, Gaithersburg, Maryland, USA, November 5-9, 2007
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Electoral search using the VerkiezingsKijker: an experience report.
Valentin Jijkoun|Maarten Marx|Maarten de Rijke|Frank van Waveren
Proceedings of the 16th International Conference on World Wide Web, WWW 2007, Banff, Alberta, Canada, May 8-12, 2007

2006

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Link-Based vs. Content-Based Retrieval for Question Answering Using Wikipedia.
Sisay Fissaha Adafre|Valentin Jijkoun|Maarten de Rijke
Evaluation of Multilingual and Multi-modal Information Retrieval, 7th Workshop of the Cross-Language Evaluation Forum, CLEF 2006, Alicante, Spain, September 20-22, 2006, Revised Selected Papers
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Quartz: A Question Answering System for Dutch.
David Ahn|Valentin Jijkoun|Joris van Rantwijk|Maarten de Rijke|Erik F. Tjong Kim Sang
Evaluation of Multilingual and Multi-modal Information Retrieval, 7th Workshop of the Cross-Language Evaluation Forum, CLEF 2006, Alicante, Spain, September 20-22, 2006, Revised Selected Papers
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Overview of the WiQA Task at CLEF 2006.
Valentin Jijkoun|Maarten de Rijke
Evaluation of Multilingual and Multi-modal Information Retrieval, 7th Workshop of the Cross-Language Evaluation Forum, CLEF 2006, Alicante, Spain, September 20-22, 2006, Revised Selected Papers
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Overview of the CLEF 2006 Multilingual Question Answering Track.
Bernardo Magnini|Danilo Giampiccolo|Pamela Forner|Christelle Ayache|Valentin Jijkoun|Petya Osenova|Anselmo Peñas|Paulo Rocha|Bogdan Sacaleanu|Richard F. E. Sutcliffe
Evaluation of Multilingual and Multi-modal Information Retrieval, 7th Workshop of the Cross-Language Evaluation Forum, CLEF 2006, Alicante, Spain, September 20-22, 2006, Revised Selected Papers
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The University of Amsterdam at WiQA 2006.
Sisay Fissaha Adafre|Valentin Jijkoun|Maarten de Rijke
Working Notes for CLEF 2006 Workshop co-located with the 10th European Conference on Digital Libraries (ECDL 2006), Alicante, Spain, September 20-22, 2006.
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Overview of WiQA 2006.
Valentin Jijkoun|Maarten de Rijke
Working Notes for CLEF 2006 Workshop co-located with the 10th European Conference on Digital Libraries (ECDL 2006), Alicante, Spain, September 20-22, 2006.
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The University of Amsterdam at CLEF@QA 2006.
Valentin Jijkoun|Joris van Rantwijk|David Ahn|Erik F. Tjong Kim Sang|Maarten de Rijke
Working Notes for CLEF 2006 Workshop co-located with the 10th European Conference on Digital Libraries (ECDL 2006), Alicante, Spain, September 20-22, 2006.
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Overview of the CLEF 2006 Multilingual Question Answering Track.
Bernardo Magnini|Danilo Giampiccolo|Pamela Forner|Christelle Ayache|Petya Osenova|Anselmo Peñas|Valentin Jijkoun|Bogdan Sacaleanu|Paulo Rocha|Richard F. E. Sutcliffe
Working Notes for CLEF 2006 Workshop co-located with the 10th European Conference on Digital Libraries (ECDL 2006), Alicante, Spain, September 20-22, 2006.

2005

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Retrieving answers from frequently asked questions pages on the web.
Valentin Jijkoun|Maarten de Rijke
Proceedings of the 2005 ACM CIKM International Conference on Information and Knowledge Management, Bremen, Germany, October 31 - November 5, 2005
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Towards an Offline XML-Based Strategy for Answering Questions.
David Ahn|Valentin Jijkoun|Karin Müller|Maarten de Rijke|Erik F. Tjong Kim Sang
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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The University of Amsterdam at QA@CLEF 2005.
David Ahn|Valentin Jijkoun|Karin Müller|Maarten de Rijke|Erik F. Tjong Kim Sang
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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Towards a Multi-Stream Question Answering-As-XML-Retrieval Strategy.
David Ahn|Sisay Fissaha Adafre|Valentin Jijkoun|Karin Müller|Maarten de Rijke|Erik F. Tjong Kim Sang
Proceedings of the Fourteenth Text REtrieval Conference, TREC 2005, Gaithersburg, Maryland, USA, November 15-18, 2005

2004

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Making Stone Soup: Evaluating a Recall-Oriented Multi-stream Question Answering System for Dutch.
David Ahn|Valentin Jijkoun|Karin Müller|Maarten de Rijke|Stefan Schlobach|Gilad Mishne
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 Amsterdam at QA@CLEF 2004.
Valentin Jijkoun|Gilad Mishne|Maarten de Rijke|Stefan Schlobach|David Ahn|Karin Müller
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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Answer Selection in a Multi-stream Open Domain Question Answering System.
Valentin Jijkoun|Maarten de Rijke
Advances in Information Retrieval, 26th European Conference on IR Research, ECIR 2004, Sunderland, UK, April 5-7, 2004, Proceedings
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Using Wikipedia at the TREC QA Track.
David Ahn|Valentin Jijkoun|Gilad Mishne|Karin Müller|Maarten de Rijke|Stefan Schlobach
Proceedings of the Thirteenth Text REtrieval Conference, TREC 2004, Gaithersburg, Maryland, USA, November 16-19, 2004

2003

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How Frogs Built the Berlin Wall: A Detailed Error Analysis of a Question Answering System for Dutch.
Valentin Jijkoun|Gilad Mishne|Maarten de Rijke
Comparative Evaluation of Multilingual Information Access Systems, 4th Workshop of the Cross-Language Evaluation Forum, CLEF 2003, Trondheim, Norway, August 21-22, 2003, Revised Selected Papers
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The University of Amsterdam at QA@CLEF2003.
Valentin Jijkoun|Gilad Mishne|Maarten de Rijke
Working Notes for CLEF 2003 Workshop co-located with the 7th European Conference on Digital Libraries (ECDL 2003), Trondheim, Norway, August 21-22, 2003.
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The University of Amsterdam at the TREC 2003 Question Answering Track.
Valentin Jijkoun|Gilad Mishne|Christof Monz|Maarten de Rijke|Stefan Schlobach|Oren Tsur
Proceedings of The Twelfth Text REtrieval Conference, TREC 2003, Gaithersburg, Maryland, USA, November 18-21, 2003