Accessing Multilingual Information Repositories

1. Front Matter

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2. What Happened in CLEF 2005

   1. What Happened in CLEF 2005

      • Carol Peters

      Pages 1-10

3. Part I. Multilingual Textual Document Retrival (Ad Hoc)

   1. CLEF 2005: Ad Hoc Track Overview

      • Giorgio M. Di Nunzio, Nicola Ferro, Gareth J. F. Jones, Carol Peters

      Pages 11-36

4. Cross-Language and More

   1. Ad-Hoc Mono- and Bilingual Retrieval Experiments at the University of Hildesheim

      • René Hackl, Thomas Mandl, Christa Womser-Hacker

      Pages 37-43

   2. MIRACLE at Ad-Hoc CLEF 2005: Merging and Combining Without Using a Single Approach

      • José M. Goñi-Menoyo, José C. González-Cristóbal, Julio Villena-Román

      Pages 44-53

   3. The XLDB Group at the CLEF 2005 Ad-Hoc Task

      • Nuno Cardoso, Leonardo Andrade, Alberto Simões, Mário J. Silva

      Pages 54-60

   4. Thomson Legal and Regulatory Experiments at CLEF-2005

      • Isabelle Moulinier, Ken Williams

      Pages 61-68

   5. Using the X-IOTA System in Mono- and Bilingual Experiments at CLEF 2005

      • Loïc Maisonnasse, Gilles Sérasset, Jean-Pierre Chevallet

      Pages 69-78

   6. Bilingual and Multilingual Experiments with the IR-n System

      • Elisa Noguera, Fernando Llopis, Rafael Muñoz, Rafael M. Terol, Miguel A. García-Cumbreras, Fernando Martínez-Santiago et al.

      Pages 79-82

   7. Dictionary-Based Amharic-French Information Retrieval

      • Atelach Alemu Argaw, Lars Asker, Rickard Cöster, Jussi Karlgren, Magnus Sahlgren

      Pages 83-92

   8. A Hybrid Approach to Query and Document Translation Using a Pivot Language for Cross-Language Information Retrieval

      • Kazuaki Kishida, Noriko Kando

      Pages 93-101

   9. Conceptual Indexing for Multilingual Information Retrieval

      • Jacques Guyot, Saïd Radhouani, Gilles Falquet

      Pages 102-112

   10. SINAI at CLEF 2005: Multi-8 Two-Years-on and Multi-8 Merging-Only Tasks

       • Fernando Martínez-Santiago, Miguel A. García-Cumbreras, L. A. Ureña-López

       Pages 113-120

   11. CLEF 2005: Multilingual Retrieval by Combining Multiple Multilingual Ranked Lists

       • Luo Si, Jamie Callan

       Pages 121-130

   12. Monolingual, Bilingual, and GIRT Information Retrieval at CLEF-2005

       • Jacques Savoy, Pierre-Yves Berger

       Pages 131-140

   13. Socio-Political Thesaurus in Concept-Based Information Retrieval

       • Mikhail Ageev, Boris Dobrov, Natalia Loukachevitch

       Pages 141-150

   14. The Performance of a Machine Translation-Based English-Indonesian CLIR System

       • Mirna Adriani, Ihsan Wahyu

       Pages 151-154

   15. Exploring New Languages with HAIRCUT at CLEF 2005

       • Paul McNamee

       Pages 155-164

   16. Dublin City University at CLEF 2005: Multi-8 Two-Years-On Merging Experiments

       • Adenike M. Lam-Adesina, Gareth J. F. Jones

       Pages 165-169

   17. Applying Light Natural Language Processing to Ad-Hoc Cross Language Information Retrieval

       • Christina Lioma, Craig Macdonald, Ben He, Vassilis Plachouras, Iadh Ounis

       Pages 170-178

The sixth campaign of the Cross Language Evaluation Forum (CLEF) for European languages was held from January to September 2005. CLEF is by now an established international evaluation initiative and 74 groups from all over the world submitted results for one or more of the different evaluation tracks in 2005, compared with 54 groups in 2004. There were eight distinct evaluation tracks, designed to test the performance of a wide range of systems for multilingual information access. Full details regarding the design of the tracks, the methodologies used for evaluation, and the results obtained by the participants can be found in the different sections of these proceedings. As always the results of the campaign were reported and discussed at the annual workshop held in Vienna, Austria, September 21-23, immediately following the ninth European Conference on Digital Libraries. The workshop was attended by approximately 110 academic and industrial researchers and system developers. In addition to presentations by participants in the campaign, Noriko Kando from the National Institute of Informatics, Tokyo, gave an invited talk on the activities of the NTCIR evaluation initiative for Asian languages. Breakout sessions gave participants a chance to discuss ideas and results in detail. The final session was dedicated to proposals for activities for CLEF 2006. The presentations given at the workshop can be found on the CLEF Web site at: www. clef-campaign. org. We should like to thank the other members of the CLEF Steering Committee for their assistance in the coordination of this event.

• Thesaurus
• bilingual information retrieval
• corpus
• cross-languarge queries
• cross-languarge question answering
• cross-lingual text retrieval
• geographgic information retrieval
• interactive text retrieval systems
• machine learning
• machine translation
• multilingual informati
• natural language processing
• ontology
• programming
• unmanned aerial vehicle

• ISTI-CNR, Area di Ricerca, Pisa, Italy

  Carol Peters

• University of California, Berkeley, USA

  Fredric C. Gey

• No Affiliations,  

  Julio Gonzalo

• Business Information Systems, University of Applied Sciences, Sierre, Switzerland

  Henning Müller

• Centre for Digital Video Processing & School of Computing, Dublin City University, Dublin 9, Ireland

  Gareth J. F. Jones

• German Institute for International and Security Affairs, Stiftung Wissenschaft und Politik (SWP), Berlin, Germany

  Michael Kluck

• ITC-IRST, Trento, Italy

  Bernardo Magnini

• ISLA, University of Amsterdam,  

  Maarten Rijke

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