2016

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Dynamic Collective Entity Representations for Entity Ranking
David Graus | Manos Tsagkias | Wouter Weerkamp | Edgar Meij | Maarten de Rijke
Proceedings of the Ninth ACM International Conference on Web Search and Data Mining, San Francisco, CA, USA, February 22-25, 2016

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Building a Self-Learning Search Engine: From Research to Business
Manos Tsagkias | Wouter Weerkamp
Proceedings of the 39th International ACM SIGIR conference on Research and Development in Information Retrieval, SIGIR 2016, Pisa, Italy, July 17-21, 2016

2014

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Semanticizing search engine queries: the University of Amsterdam at the ERD 2014 challenge
David Graus | Daan Odijk | Manos Tsagkias | Wouter Weerkamp | Maarten de Rijke
ERD'14, Proceedings of the First ACM International Workshop on Entity Recognition & Disambiguation, July 11, 2014, Gold Coast, Queensland, Australia

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Recipient recommendation in enterprises using communication graphs and email content
David Graus | David van Dijk | Manos Tsagkias | Wouter Weerkamp | Maarten de Rijke
The 37th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR '14, Gold Coast , QLD, Australia - July 06 - 11, 2014

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Time-Aware Rank Aggregation for Microblog Search
Shangsong Liang | Zhaochun Ren | Wouter Weerkamp | Edgar Meij | Maarten de Rijke
Proceedings of the 23rd ACM International Conference on Conference on Information and Knowledge Management, CIKM 2014, Shanghai, China, November 3-7, 2014

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Query-Dependent Contextualization of Streaming Data
Nikos Voskarides | Daan Odijk | Manos Tsagkias | Wouter Weerkamp | Maarten de Rijke
Advances in Information Retrieval - 36th European Conference on IR Research, ECIR 2014, Amsterdam, The Netherlands, April 13-16, 2014. Proceedings

2013

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Pseudo test collections for training and tuning microblog rankers
Richard Berendsen | Manos Tsagkias | Wouter Weerkamp | Maarten de Rijke
The 36th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '13, Dublin, Ireland - July 28 - August 01, 2013

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Inside the world's playlist
Wouter Weerkamp | Manos Tsagkias | Maarten de Rijke
22nd ACM International Conference on Information and Knowledge Management, CIKM'13, San Francisco, CA, USA, October 27 - November 1, 2013

2012

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Exploiting External Collections for Query Expansion
Wouter Weerkamp | Krisztian Balog | Maarten de Rijke
2012 Volume 6 Issue 4

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Finding people and their utterances in social media
Wouter Weerkamp
2012 Volume 46 Issue 1

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Credibility-inspired ranking for blog post retrieval
Wouter Weerkamp | Maarten de Rijke
2012 Volume 15 Issue 3-4

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Adding semantics to microblog posts
Edgar Meij | Wouter Weerkamp | Maarten de Rijke
Proceedings of the Fifth International Conference on Web Search and Web Data Mining, WSDM 2012, Seattle, WA, USA, February 8-12, 2012

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The University of Amsterdam at TREC 2012
Richard Berendsen | Edgar Meij | Daan Odijk | Maarten de Rijke | Wouter Weerkamp
Proceedings of The Twenty-First Text REtrieval Conference, TREC 2012, Gaithersburg, Maryland, USA, November 6-9, 2012

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Adaptive Temporal Query Modeling
Maria-Hendrike Peetz | Edgar Meij | Maarten de Rijke | Wouter Weerkamp
Advances in Information Retrieval - 34th European Conference on IR Research, ECIR 2012, Barcelona, Spain, April 1-5, 2012. Proceedings

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A Framework for Unsupervised Spam Detection in Social Networking Sites
Maarten Bosma | Edgar Meij | Wouter Weerkamp
Advances in Information Retrieval - 34th European Conference on IR Research, ECIR 2012, Barcelona, Spain, April 1-5, 2012. Proceedings

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Result Disambiguation in Web People Search
Richard Berendsen | Bogomil Kovachev | Evangelia-Paraskevi Nastou | Maarten de Rijke | Wouter Weerkamp
Advances in Information Retrieval - 34th European Conference on IR Research, ECIR 2012, Barcelona, Spain, April 1-5, 2012. Proceedings

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
2011 Volume 45 Issue 1

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Blog feed search with a post index
Wouter Weerkamp | Krisztian Balog | Maarten de Rijke
2011 Volume 14 Issue 5

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Linking online news and social media
Manos Tsagkias | Maarten de Rijke | Wouter Weerkamp
Proceedings of the Forth International Conference on Web Search and Web Data Mining, WSDM 2011, Hong Kong, China, February 9-12, 2011

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Hypergeometric language models for republished article finding
Manos Tsagkias | Maarten de Rijke | Wouter Weerkamp
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

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People searching for people: analysis of a people search engine log
Wouter Weerkamp | Richard Berendsen | Bogomil Kovachev | Edgar Meij | Krisztian Balog | 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

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Incorporating Query Expansion and Quality Indicators in Searching Microblog Posts
Kamran Massoudi | Manos Tsagkias | Maarten de Rijke | Wouter Weerkamp
Advances in Information Retrieval - 33rd European Conference on IR Research, ECIR 2011, Dublin, Ireland, April 18-21, 2011. Proceedings

2010

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The University of Amsterdam at TREC 2010: Session, Entity and Relevance Feedback
Marc Bron | Jiyin He | Katja Hofmann | Edgar Meij | Maarten de Rijke | Manos Tsagkias | Wouter Weerkamp
Proceedings of The Nineteenth Text REtrieval Conference, TREC 2010, Gaithersburg, Maryland, USA, November 16-19, 2010

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Finding people and their utterances in social media
Wouter Weerkamp
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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A two-stage model for blog feed search
Wouter Weerkamp | Krisztian Balog | Maarten de Rijke
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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News Comments: Exploring, Modeling, and Online Prediction
Manos Tsagkias | Wouter Weerkamp | Maarten de Rijke
Advances in Information Retrieval, 32nd European Conference on IR Research, ECIR 2010, Milton Keynes, UK, March 28-31, 2010. Proceedings

2009

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Topical Diversity and Relevance Feedback
Edgar Meij | Jiyin He | Wouter Weerkamp | Maarten de Rijke
Proceedings of The Eighteenth Text REtrieval Conference, TREC 2009, Gaithersburg, Maryland, USA, November 17-20, 2009

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Heuristic Ranking and Diversification of Web Documents
Jiyin He | Krisztian Balog | Katja Hofmann | Edgar Meij | Maarten de Rijke | Manos Tsagkias | Wouter Weerkamp
Proceedings of The Eighteenth Text REtrieval Conference, TREC 2009, Gaithersburg, Maryland, USA, November 17-20, 2009

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From Blogs to News: Identifying Hot Topics in the Blogosphere
Wouter Weerkamp | Manos Tsagkias | Maarten de Rijke
Proceedings of The Eighteenth Text REtrieval Conference, TREC 2009, Gaithersburg, Maryland, USA, November 17-20, 2009

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A comparison of retrieval-based hierarchical clustering approaches to person name disambiguation
Christof Monz | Wouter Weerkamp
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

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A query model based on normalized log-likelihood
Edgar Meij | Wouter Weerkamp | Maarten de Rijke
Proceedings of the 18th ACM Conference on Information and Knowledge Management, CIKM 2009, Hong Kong, China, November 2-6, 2009

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Predicting the volume of comments on online news stories
Manos Tsagkias | Wouter Weerkamp | Maarten de Rijke
Proceedings of the 18th ACM Conference on Information and Knowledge Management, CIKM 2009, Hong Kong, China, November 2-6, 2009

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Using Contextual Information to Improve Search in Email Archives
Wouter Weerkamp | Krisztian Balog | Maarten de Rijke
Advances in Information Retrieval, 31th European Conference on IR Research, ECIR 2009, Toulouse, France, April 6-9, 2009. Proceedings

2008

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Blogger, stick to your story: modeling topical noise in blogs with coherence measures
Jiyin He | Wouter Weerkamp | Martha A. Larson | Maarten de Rijke
Proceedings of the Second Workshop on Analytics for Noisy Unstructured Text Data, AND 2008, Singapore, July 24, 2008

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PodCred: a framework for analyzing podcast preference
Manos Tsagkias | Martha A. Larson | Wouter Weerkamp | Maarten de Rijke
Proceedings of the 2nd ACM Workshop on Information Credibility on the Web, WICOW 2008, Napa Valley, California, USA, October 30, 2008

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Metadata and Multilinguality in Video Classification
Jiyin He | Xu Zhang | Wouter Weerkamp | Martha A. Larson
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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The University of Amsterdam at VideoCLEF 2008
Jiyin He | Xu Zhang | Wouter Weerkamp | Martha A. Larson
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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Incorporating Non-Relevance Information in the Estimation of Query Models
Edgar Meij | Wouter Weerkamp | Jiyin He | Maarten de Rijke
Proceedings of The Seventeenth Text REtrieval Conference, TREC 2008, Gaithersburg, Maryland, USA, November 18-21, 2008

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External Query Expansion in the Blogosphere
Wouter Weerkamp | Maarten de Rijke
Proceedings of The Seventeenth Text REtrieval Conference, TREC 2008, Gaithersburg, Maryland, USA, November 18-21, 2008

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Parsimonious relevance models
Edgar Meij | Wouter Weerkamp | Krisztian Balog | Maarten de Rijke
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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Bloggers as experts: feed distillation using expert retrieval models
Krisztian Balog | Maarten de Rijke | Wouter Weerkamp
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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A few examples go a long way: constructing query models from elaborate query formulations
Krisztian Balog | Wouter Weerkamp | Maarten de Rijke
Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2008, Singapore, July 20-24, 2008

2007

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Query and Document Models for Enterprise Search
Krisztian Balog | Katja Hofmann | Wouter Weerkamp | Maarten de Rijke
Proceedings of The Sixteenth Text REtrieval Conference, TREC 2007, Gaithersburg, Maryland, USA, November 5-9, 2007

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Language Modeling Approaches to Blog Postand Feed Finding
Breyten Ernsting | Wouter Weerkamp | Maarten de Rijke
Proceedings of The Sixteenth Text REtrieval Conference, TREC 2007, Gaithersburg, Maryland, USA, November 5-9, 2007

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