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The University of Amsterdam at NTCIR-5

Jaap Kamps, Michiel van der Bruggen, Maarten de Rijke
2005 NTCIR Conference on Evaluation of Information Access Technologies  
We describe the University of Amsterdam's participation in the Cross-Lingual Information Retrieval task at NTCIR-5.  ...  Second, on a unigram index, the language model is very effective, and even exceeds the performance of the vector space model on the bigram index.  ...  Acknowledgments Jaap Kamps was supported by grants from the Netherlands Organization for Scientific Research  ... 
dblp:conf/ntcir/KampsBR05 fatcat:ik3lfohz3rccjloedy7t6im3se

Overview of NTCIR-13

Makoto P. Kato, Yiqun Liu
2017 NTCIR Conference on Evaluation of Information Access Technologies  
NTCIR-13 presents a diverse set of evaluation tasks related to information retrieval, question answering, natural language processing, etc (in total, nine tasks have been organized at NTCIR-13).  ...  This is an overview of NTCIR-13, the thirteenth sesquiannual research project for evaluating information access technologies.  ...  Kato (Co-chair, Kyoto University, Japan), Chin-Yew Lin (Microsoft Research Asia, China), Yiqun Liu (Co-chair, Tsinghua University, China), Maarten de Rijke (University of Amsterdam, the Netherlands), Mark  ... 
dblp:conf/ntcir/Kato017 fatcat:3j3ldhps7ngeveivpjcxnh4oqu

Overview of NTCIR-11

Hideo Joho, Kazuaki Kishida
2014 NTCIR Conference on Evaluation of Information Access Technologies  
NTCIR-11 presents the most diverse set of evaluation tasks in the history of NTCIR, led by over 40 cutting-edge researchers worldwide.  ...  This is an overview of NTCIR-11, the eleventh sesquiannual workshop for the evaluation of Information Access technologies.  ...  Finally, we would like to thank the current and past members of the NTCIR office for their continuous and careful support of our activity.  ... 
dblp:conf/ntcir/JohoK14 fatcat:q6qhskofejd3lfhs6ih6s5dcpq

DGLab Question Answering System and Automatic Evaluation Method at NTCIR-13 QA Lab-3 for University Entrance Exam on World History Essay

Mike Tian-Jian Jiang
2017 NTCIR Conference on Evaluation of Information Access Technologies  
The paper describes DGLab question answering system and automatic evaluation method at NTCIR-13 QA Lab-3 for Japanese university entrance exam on world history essay.  ...  The proposed system follows the organizer-recommended pipeline, consisting of an extraction module and a summarization one.  ...  CONCLUSION The paper describes DGLab question answering system and automatic evaluation method at NTCIR-13 QA Lab-3 for Japanese university entrance exam on world history essay.  ... 
dblp:conf/ntcir/Jiang17 fatcat:el2xbkvqhna73mzzd5jy7eip54

An Evaluation of Geographic and Temporal Search

Fredric C. Gey, Noriko Kando, Ray R. Larson
2010 Lernen, Wissen, Daten, Analysen  
This paper summarizes parts of the NTCIR-Geo-Time Task held in Tokyo June 15-18, 2010.  ...  This task was the first evaluation specifically of search with both Geographic and Temporal constraints, i.e. it combines geographic information retrieval (GIR) with time-based search to find specific  ...  Acknowledgments We thank participant assessors Christopher Harris (University of Iowa), Krishna Janakiraman (UC Berkeley), Ricardo Vaz and Flávio Esteves (Technical University of Lisbon).  ... 
dblp:conf/lwa/GeyKL10 fatcat:n3mg3gxekffbnjjioe3gicx44i

Overview of CLIR Task at the Fifth NTCIR Workshop

Kazuaki Kishida, Kuang-hua Chen, Sukhoon Lee, Kazuko Kuriyama, Noriko Kando, Hsin-Hsi Chen, Sung-Hyon Myaeng
2005 NTCIR Conference on Evaluation of Information Access Technologies  
The purpose of this paper is to overview research efforts at the NTCIR-5 CLIR task, which is a project of large-scale retrieval experiments on cross-lingual information retrieval (CLIR) of Chinese, Japanese  ...  This paper describes the system of the NTCIR-5 CLIR task and its test collection (document sets, topic sets, and method for relevance judgments), and reviews CLIR techniques used by participants and search  ...  In Proceedings of the Fifth NTCIR Workshop. [7] Jaap Kamps, Michiel van der Bruggen, Maarten de Rijke. The University of Amsterdam at NTCIR-5. In Proceedings of the Fifth NTCIR Workshop. [8] K.  ... 
dblp:conf/ntcir/KishidaCLKKCM05 fatcat:h6wk76opi5bsxamfqpvsohvvyu

Technical University of Lisbon CLEF 2008 Submission: TEL@CLEF Monolingual Task

Jorge Machado, Bruno Martins, José Luis Borbinha
2008 Conference and Labs of the Evaluation Forum  
We describe our participation in the TEL@CLEF task of the CLEF 2008 ad-hoc track, where we measured the retrieval performance of the IR service that is currently under development as part of the DIGMAP  ...  In our runs, we experimented combinations of query expansion, Lucene's off-the-shelf ranking scheme and the ranking scheme based on multinomial language modelling.  ...  This extension was developed at the Informatics Institute of the University of Amsterdam 3 .  ... 
dblp:conf/clef/MachadoMB08a fatcat:sud7izr24vda5i5yhufkfhnigm

CLEF 2014

Linda Cappellato, Mark Sanderson, Elaine Toms, Robert Villa, Paul Clough, Nicola Ferro, Mark Hall, Martin Halvey, Allan Hanbury, Evangelos Kanoulas, Wessel Kraaij, Mihai Lupu
2014 SIGIR Forum  
We would also like to acknowledge the support provided by Microsoft Research and the University of Sheffield.  ...  Acknowledgments The success of CLEF 2014 would not have been possible without the contributions of the members of the Programme Committee, the Organizing Committee, Lab Organizers, students volunteers  ...  Introduction The 2014 Conference and Labs of the Evaluation Forum 1 (CLEF) event was held at the University of Sheffield, UK, on September 15-18, 2014.  ... 
doi:10.1145/2701583.2701589 fatcat:oellkoy6zfehfg7hgyaumipvzy

Geo-Temporal retrieval filtering versus answer resolution using Wikipedia

Jorge Machado, José Luis Borbinha, Bruno Martins
2011 NTCIR Conference on Evaluation of Information Access Technologies  
We describe an evaluation experiment on GeoTemporal Document Retrieval created for the GeoTime evaluation task of NTCIR 2011.  ...  The first contribution of this work is the collections' statistics, which by itself reveals the relevance of this subject.  ...  We would also like to thanks to Professor Pável Calado and the students Pedro Barros and Irina Lopes, from the INESC-ID / Technical University of Lisbon at IST, for their valuable contribution in the topic  ... 
dblp:conf/ntcir/MachadoBM11 fatcat:yfx4hdyq3fh4rbyjy4auub7bma

Experiments with Geo-Temporal Expressions Filtering and Query Expansion at Document and Phrase Context Resolution

Jorge Machado, José Luis Borbinha, Bruno Martins
2010 NTCIR Conference on Evaluation of Information Access Technologies  
We describe an evaluation experiment on GeoTemporal Document Retrieval created for the GeoTime evaluation task of NTCIR 2010.  ...  GeoTemporal Retrieval aims at to improve retrieval results using Geographic and Temporal dimensions of relevance.  ...  We would also like to thanks to Professor Pável Calado and students Ricardo Vaz and Flávio Esteves, from the INESC-ID / Technical University of Lisbon at IST, for their valuable contribution in the assessments  ... 
dblp:conf/ntcir/MachadoBM10 fatcat:jd5jsvctvngchds6eo3ljkxaei

Experiments with N-Gram Prefixes on a Multinomial Language Model versus Lucene's Off-the-Shelf Ranking Scheme and Rocchio Query Expansion (TEL@CLEF Monolingual Task) [chapter]

Jorge Machado, Bruno Martins, José Borbinha
2010 Lecture Notes in Computer Science  
The N-Gram stemming model was based in a linear combination of N-Gram, with n between 2 and 5, using weight factors obtained by learning from last year topics and assessments.  ...  We describe our participation in the TEL@CLEF task of the CLEF 2009 ad-hoc track, where we measured the retrieval performance of LGTE, an index engine for Geo-Temporal collection which is mostly based  ...  This extension was developed at the Informatics Institute of the University of Amsterdam 4 .  ... 
doi:10.1007/978-3-642-15754-7_10 fatcat:slrsc7dwgjgcveg2iaqkhrwmbm

Report on the Information Retrieval Festival (IRFest2017)

Leif Azzopardi, Craig Macdonald, Iadh Ounis, Martin Halvey
2017 SIGIR Forum  
The workshop had a total of 75 attendees from across the Scottish universities and beyond.  ...  The aim of the workshop was to increase awareness and interaction between IR-related researchers working in, across, and with Scottish and UK universities.  ...  Acknowledgements We would like to thank: the Scottish Informatics and Computing Science Alliance (SICSA); the University of Glasgow's 60th Anniversary Computing Science committee; and ACM SI-GIR executive  ... 
doi:10.1145/3130332.3130336 fatcat:3ejhaputzve5dileftpldba4uu

Comparative Evaluation of Cross-language Information Retrieval Systems [chapter]

Carol Peters
2005 Lecture Notes in Computer Science  
In this paper, we outline the various activities initiated by CLEF over the years in order to meet the emerging needs of the application communities, and trace the impact of these activities on advances  ...  With the increasing importance of the "Global Information Society" and as the world's depositories of online collections proliferate, there is a growing need for systems that enable access to information  ...  A group from the University of Amsterdam is responsible for developing a pilot WebCLEF track. They intend to build on insights gained while building the W10G and the .gov collections at TREC [6] .  ... 
doi:10.1007/978-3-540-31842-2_16 fatcat:4ad3pwr6pnhr5n6v3gwzsqd4cu

Report on the SIGIR 2007 workshop on focused retrieval

Andrew Trotman, Shlomo Geva, Jaap Kamps
2007 SIGIR Forum  
On the 27th July 2007 the SIGIR 2007 Workshop on Focused Retrieval was held as part of SIGIR in Amsterdam, the Netherlands.  ...  This report outlines the events of the workshop and summarizes the major outcomes.  ...  The University of Otago is hosting the workshop proceedings which are online (http://www.cs.otago.ac.nz/sigirfocus/).  ... 
doi:10.1145/1328964.1328981 fatcat:3qi4wek47zffha4k7l2y5xkw4m

Spanish Question Answering Evaluation [chapter]

Anselmo Peñas, Felisa Verdejo, Jesús Herrera
2004 Lecture Notes in Computer Science  
This paper reports the most significant issues related to the launching of a Monolingual Spanish Question Answering evaluation track at the Cross Language Evaluation Forum (CLEF 2003).  ...  It introduces some questions about multilingualism and describes the methodology for test suite production, task, judgment of answers as well as the results obtained by the participant systems.  ...  This work has been supported by the Spanish government (MCyT, TIC-2002-10597-E).  ... 
doi:10.1007/978-3-540-24630-5_58 fatcat:jqohsaxei5epnm4qavmuxbxwbe
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