CLEF 2006: Alicante, Spain

Introduction

• Carol Peters:
  What Happened in CLEF 2006. 1-10
  
• Maristella Agosti, Giorgio Maria Di Nunzio, Nicola Ferro:
  Scientific Data of an Evaluation Campaign: Do We Properly Deal with Them? 11-20
  

Part I: Multilingual Textual Document Retrieval (Ad Hoc)

• Giorgio Maria Di Nunzio, Nicola Ferro, Thomas Mandl, Carol Peters:
  CLEF 2006: Ad Hoc Track Overview. 21-34
  

Cross-Language

• Prasad Pingali, Kula Kekeba Tune, Vasudeva Varma:
  Hindi, Telugu, Oromo, English CLIR Evaluation. 35-42
  
• Atelach Alemu Argaw, Lars Asker:
  Amharic-English Information Retrieval. 43-50
  
• Nuno Cardoso, Mário J. Silva, Bruno Martins:
  The University of Lisbon at CLEF 2006 Ad-Hoc Task. 51-56
  
• Herika Hayurani, Syandra Sari, Mirna Adriani:
  Query and Document Translation for English-Indonesian Cross Language IR. 57-61
  

Monolingual

• Elisa Noguera, Fernando Llopis:
  Passage Retrieval vs. Document Retrieval in the CLEF 2006 Ad Hoc Monolingual Tasks with the IR-n System. 62-65
  
• Marco Gonzalez, Vera Lúcia Strube de Lima:
  The PUCRS NLP-Group Participation in CLEF2006: Information Retrieval Based on Linguistic Resources. 66-73
  
• João Marcelo Azevedo Arcoverde, Maria das Graças Volpe Nunes:
  NLP-Driven Constructive Learning for Filtering an IR Document Stream. 74-82
  
• Annabelle Mercier, Michel Beigbeder:
  ENSM-SE at CLEF 2006 : Fuzzy Proxmity Method with an Adhoc Influence Function. 83-90
  
• Viviane Moreira Orengo, Luciana S. Buriol, Alexandre Ramos Coelho:
  A Study on the Use of Stemming for Monolingual Ad-Hoc Portuguese Information Retrieval. 91-98
  
• Péter Halácsy, Viktor Trón:
  Benefits of Resource-Based Stemming in Hungarian Information Retrieval. 99-106
  
• Prasenjit Majumder, Mandar Mitra, Kalyankumar Datta:
  Statistical vs. Rule-Based Stemming for Monolingual French Retrieval. 107-110
  

Robust and More

• Jesús Vilares, Michael P. Oakes, John Tait:
  A First Approach to CLIR Using Character N -Grams Alignment. 111-118
  
• Fernando Martínez Santiago, Arturo Montejo Ráez, Miguel Angel García Cumbreras, Luis Alfonso Ureña López:
  SINAI at CLEF 2006 Ad Hoc Robust Multilingual Track: Query Expansion Using the Google Search Engine. 119-126
  
• Thomas Mandl, René Hackl, Christa Womser-Hacker:
  Robust Ad-Hoc Retrieval Experiments with French and English at the University of Hildesheim. 127-128
  
• Stephen Tomlinson:
  Comparing the Robustness of Expansion Techniques and Retrieval Measures. 129-136
  
• Jacques Savoy, Samir Abdou:
  Experiments with Monolingual, Bilingual, and Robust Retrieval. 137-144
  
• Ángel F. Zazo Rodríguez, José Luis Alonso Berrocal, Carlos G. Figuerola:
  Local Query Expansion Using Terms Windows for Robust Retrieval. 145-152
  
• Adenike M. Lam-Adesina, Gareth J. F. Jones:
  Dublin City University at CLEF 2006: Robust Cross Language Track. 153-156
  
• Paul McNamee:
  JHU/APL Ad Hoc Experiments at CLEF 2006. 157-162
  

Part II: Domain-Specific Information Retrieval (Domain-Specific)

• Maximilian Stempfhuber, Stefan Baerisch:
  The Domain-Specific Track at CLEF 2006: Overview of Approaches, Results and Assessment. 163-169
  
• Johannes Leveling:
  Reranking Documents with Antagonistic Terms. 170-173
  
• Ray R. Larson:
  Domain Specific Retrieval: Back to Basics. 174-177
  
• Jens Kürsten, Maximilian Eibl:
  Monolingual Retrieval Experiments with a Domain-Specific Document Corpus at the Chemnitz University of Technology. 178-185
  

Part III: Interactive Cross-Langauge Information Retrieval (i-CLEF)

• Jussi Karlgren, Julio Gonzalo, Paul Clough:
  iCLEF 2006 Overview: Searching the Flickr WWW Photo-Sharing Repository. 186-194
  
• Javier Artiles, Julio Gonzalo, Fernando López-Ostenero, Víctor Peinado:
  Are Users Willing to Search Cross-Language? An Experiment with the Flickr Image Sharing Repository. 195-204
  
• Paul Clough, Azzah Al-Maskari, Kareem Darwish:
  Providing Multilingual Access to FLICKR for Arabic Users. 205-216
  
• Jussi Karlgren, Fredrik Olsson:
  Trusting the Results in Cross-Lingual Keyword-Based Image Retrieval. 217-222
  

Part IV: Multiple Language Question Answering (QA@CLEF)

• Bernardo Magnini, Danilo Giampiccolo, Pamela Forner, Christelle Ayache, Valentin Jijkoun, Petya Osenova, Anselmo Peñas, Paulo Rocha, Bogdan Sacaleanu, Richard F. E. Sutcliffe:
  Overview of the CLEF 2006 Multilingual Question Answering Track. 223-256
  
• Anselmo Peñas, Álvaro Rodrigo, Valentín Sama, Felisa Verdejo:
  Overview of the Answer Validation Exercise 2006. 257-264
  
• Valentin Jijkoun, Maarten de Rijke:
  Overview of the WiQA Task at CLEF 2006. 265-274
  

Main Task: Mono- and Bilingual QA

• David Tomás, José Luis Vicedo González:
  Re-ranking Passages with LSA in a Question Answering System. 275-279
  
• Emmanuel Desmontils, Christine Jacquin, Laura Monceaux:
  Question Types Specification for the Use of Specialized Patterns in Prodicos System. 280-289
  
• Johan Bos, Malvina Nissim:
  Answer Translation: An Alternative Approach to Cross-Lingual Question Answering. 290-299
  
• Adán Cassan, Helena Figueira, André F. T. Martins, Afonso Mendes, Pedro Mendes, Cláudia Pinto, Daniel Vidal:
  Priberam's Question Answering System in a Cross-Language Environment. 300-309
  
• Mitchell Bowden, Marian Olteanu, Pasin Suriyentrakorn, Jonathan Clark, Dan I. Moldovan:
  LCC's PowerAnswer at QA@CLEF 2006. 310-317
  
• Gosse Bouma, Ismail Fahmi, Jori Mur, Gertjan van Noord, Lonneke van der Plas, Jörg Tiedemann:
  Using Syntactic Knowledge for QA. 318-327
  
• Bogdan Sacaleanu, Günter Neumann:
  A Cross-Lingual German-English Framework for Open-Domain Question Answering. 328-338
  
• Dominique Laurent, Patrick Séguéla, Sophie Nègre:
  Cross Lingual Question Answering Using QRISTAL for CLEF 2006. 339-350
  
• Edward W. D. Whittaker, Josef R. Novak, Pierre Chatain, Paul R. Dixon, Matthias H. Heie, Sadaoki Furui:
  CLEF2006 Question Answering Experiments at Tokyo Institute of Technology. 351-361
  
• David Ahn, Valentin Jijkoun, Joris van Rantwijk, Maarten de Rijke, Erik F. Tjong Kim Sang:
  Quartz: A Question Answering System for Dutch. 362-371
  
• Pedro Paulo Balage Filho, Vinícius Rodrigues de Uzêda, Thiago Alexandre Salgueiro Pardo, Maria das Graças Volpe Nunes:
  Experiments on Applying a Text Summarization System for Question Answering. 372-376
  
• Davide Buscaldi, José Manuel Gómez Soriano, Paolo Rosso, Emilio Sanchis:
  N -Gram vs. Keyword-Based Passage Retrieval for Question Answering. 377-384
  
• Georgiana Puscasu, Adrian Iftene, Ionut Pistol, Diana Trandabat, Dan Tufis, Alin Ceausu, Dan Stefanescu, Radu Ion, Iustin Dornescu, Mihai Alex Moruz, Dan Cristea:
  Cross-Lingual Romanian to English Question Answering at CLEF 2006. 385-394
  
• Romaric Besançon, Mehdi Embarek, Olivier Ferret:
  Finding Answers in the OEdipe System by Extracting and Applying Linguistic Patterns. 395-404
  
• Luís Fernando Costa:
  Question Answering Beyond CLEF Document Collections. 405-414
  
• Antonio Juárez-González, Alberto Téllez-Valero, Claudia Denicia-Carral, Manuel Montes-y-Gómez, Luis Villaseñor Pineda:
  Using Machine Learning and Text Mining in Question Answering. 415-423
  
• Manuel Alberto Pérez-Coutiño, Manuel Montes-y-Gómez, Aurelio López-López, Luis Villaseñor Pineda, Aarón Pancardo-Rodríguez:
  Applying Dependency Trees and Term Density for Answer Selection Reinforcement. 424-431
  
• Sven Hartrumpf, Johannes Leveling:
  Interpretation and Normalization of Temporal Expressions for Question Answering. 432-439
  
• Laurent Gillard, Laurianne Sitbon, Eric Blaudez, Patrice Bellot, Marc El-Bèze:
  Relevance Measures for Question Answering, The LIA at QA@CLEF-2006. 440-449
  
• Sergio Ferrández, Pilar López-Moreno, Sandra Roger, Antonio Ferrández, Jesús Peral, X. Alvarado, Elisa Noguera, Fernando Llopis:
  Monolingual and Cross-Lingual QA Using AliQAn and BRILI Systems for CLEF 2006. 450-453
  
• Brigitte Grau, Anne-Laure Ligozat, Isabelle Robba, Anne Vilnat, Michael Bagur, Kevin Séjourné:
  The Bilingual System MUSCLEF at QA@CLEF 2006. 454-462
  
• César de Pablo-Sánchez, Ana González-Ledesma, Antonio Moreno-Sandoval, Maria Teresa Vicente-Díez:
  MIRACLE Experiments in QA@CLEF 2006 in Spanish: Main Task, Real-Time QA and Exploratory QA Using Wikipedia (WiQA). 463-472
  
• Luís Sarmento:
  A First Step to Address Biography Generation as an Iterative QA Task. 473-482
  

Answer Validation Exercise (AVE)

• Álvaro Rodrigo, Anselmo Peñas, Jesús Herrera, Felisa Verdejo:
  The Effect of Entity Recognition on Answer Validation. 483-489
  
• Óscar Ferrández, Rafael M. Terol, Rafael Muñoz, Patricio Martínez-Barco, Manuel Palomar:
  A Knowledge-Based Textual Entailment Approach Applied to the AVE Task. 490-493
  
• Marta Tatu, Brandon Iles, Dan I. Moldovan:
  Automatic Answer Validation Using COGEX. 494-501
  
• Wauter Bosma, Chris Callison-Burch:
  Paraphrase Substitution for Recognizing Textual Entailment. 502-509
  
• Fabio Massimo Zanzotto, Alessandro Moschitti:
  Experimenting a "General Purpose" Textual Entailment Learner in AVE. 510-517
  
• Ingo Glöckner:
  Answer Validation Through Robust Logical Inference. 518-521
  
• Zornitsa Kozareva, Sonia Vázquez, Andrés Montoyo:
  University of Alicante at QA@CLEF2006: Answer Validation Exercise. 522-525
  
• Milen Kouylekov, Matteo Negri, Bernardo Magnini, Bonaventura Coppola:
  Towards Entailment-Based Question Answering: ITC-irst at CLEF 2006. 526-536
  

Question Answering Using Wikipedia (WiQA)

• Sisay Fissaha Adafre, Valentin Jijkoun, Maarten de Rijke:
  Link-Based vs. Content-Based Retrieval for Question Answering Using Wikipedia. 537-540
  
• Richard F. E. Sutcliffe, Josef Steinberger, Udo Kruschwitz, Mijail Alexandrov Kabadjov, Massimo Poesio:
  Identifying Novel Information Using Latent Semantic Analysis in the WiQA Task at CLEF 2006. 541-549
  
• Davide Buscaldi, Paolo Rosso:
  A Bag-of-Words Based Ranking Method for the Wikipedia Question Answering Task. 550-553
  
• Antonio Toral Ruiz, Georgiana Puscasu, Lorenza Moreno-Monteagudo, Rubén Izquierdo-Beviá, Estela Saquete Boró:
  University of Alicante at WiQA 2006. 554-560
  
• Constantin Orasan, Georgiana Puscasu:
  A High Precision Information Retrieval Method for WiQA. 561-568
  
• Diana Santos, Luís Fernando Costa:
  QolA: Fostering Collaboration Within QA. 569-578
  

Part V: Cross-Language Retrieval in Image Collections (ImageCLEF)

Overviews

• Paul Clough, Michael Grubinger, Thomas Deselaers, Allan Hanbury, Henning Müller:
  Overview of the ImageCLEF 2006 Photographic Retrieval and Object Annotation Tasks. 579-594
  
• Henning Müller, Thomas Deselaers, Thomas Martin Deserno, Paul Clough, Eugene Kim, William R. Hersh:
  Overview of the ImageCLEFmed 2006 Medical Retrieval and Medical Annotation Tasks. 595-608
  

ImageCLEFphoto

• Ray R. Larson:
  Text Retrieval and Blind Feedback for the ImageCLEFphoto Task. 609-612
  
• José Luis Martínez-Fernández, Ana M. García-Serrano, Julio Villena-Román, Paloma Martínez:
  Expanding Queries Through Word Sense Disambiguation. 613-616
  
• Masashi Inoue:
  Using Visual Linkages for Multilingual Image Retrieval. 617-624
  
• Yih-Chen Chang, Hsin-Hsi Chen:
  Approaches of Using a Word-Image Ontology and an Annotated Image Corpus as Intermedia for Cross-Language Image Retrieval. 625-632
  
• Kieran McDonald, Gareth J. F. Jones:
  Dublin City University at CLEF 2006: Experiments for the ImageCLEF Photo Collection Standard Ad Hoc Task. 633-637
  

ImageCLEFmed

• Henning Müller, Tobias Gass, Antoine Geissbühler:
  Image Classification with a Frequency-Based Information Retrieval Scheme for ImageCLEFmed 2006. 638-643
  
• Lokesh Setia, Alexandra Teynor, Alaa Halawani, Hans Burkhardt:
  Grayscale Radiograph Annotation Using Local Relational Features. 644-651
  
• Philipp Daumke, Jan Paetzold, Kornél G. Markó:
  MorphoSaurus in ImageCLEF 2006: The Effect of Subwords On Biomedical IR. 652-659
  
• William R. Hersh, Jayashree Kalpathy-Cramer, Jeffery R. Jensen:
  Medical Image Retrieval and Automated Annotation: OHSU at ImageCLEF 2006. 660-669
  
• Filip Florea, Alexandrina Rogozan, Eugen Barbu, Abdelaziz Bensrhair, Stéfan Jacques Darmoni:
  MedIC at ImageCLEF 2006: Automatic Image Categorization and Annotation Using Combined Visual Representations. 670-677
  
• Jing Liu, Yang Hu, Mingjing Li, Songde Ma, Wei-Ying Ma:
  Medical Image Annotation and Retrieval Using Visual Features. 678-685
  
• Mark Oliver Güld, Christian Thies, Benedikt Fischer, Thomas Martin Deserno:
  Baseline Results for the ImageCLEF 2006 Medical Automatic Annotation Task. 686-689
  
• Bo Qiu:
  A Refined SVM Applied in Medical Image Annotation. 690-693
  
• Caroline Lacoste, Jean-Pierre Chevallet, Joo-Hwee Lim, Diem Thi Hoang Le, Wei Xiong, Daniel Racoceanu, Roxana Teodorescu, Nicolas Vuillemenot:
  Inter-media Concept-Based Medical Image Indexing and Retrieval with UMLS at IPAL. 694-701
  
• Miguel E. Ruiz:
  UB at ImageCLEFmed 2006. 702-705
  

ImageCLEFphoto and med

• Julien Gobeill, Henning Müller, Patrick Ruch:
  Translation by Text Categorisation: Medical Image Retrieval in ImageCLEFmed 2006. 706-710
  
• Manuel Carlos Díaz-Galiano, Miguel Angel García Cumbreras, Maite Teresa Martín-Valdivia, Arturo Montejo Ráez, Luis Alfonso Ureña López:
  Using Information Gain to Improve the ImageCLEF 2006 Collection. 711-714
  
• Md. Mahmudur Rahman, Varun Sood, Bipin C. Desai, Prabir Bhattacharya:
  CINDI at ImageCLEF 2006: Image Retrieval & Annotation Tasks for the General Photographic and Medical Image Collections. 715-724
  
• Thomas Deselaers, Tobias Weyand, Hermann Ney:
  Image Retrieval and Annotation Using Maximum Entropy. 725-734
  
• Nicolas Maillot, Jean-Pierre Chevallet, Joo-Hwee Lim:
  Inter-media Pseudo-relevance Feedback Application to ImageCLEF 2006 Photo Retrieval. 735-738
  
• Thomas Wilhelm, Maximilian Eibl:
  ImageCLEF 2006 Experiments at the Chemnitz Technical University. 739-743
  

Part VI: Cross-Language Speech Retrieval (CLSR)

• Douglas W. Oard, Jianqiang Wang, Gareth J. F. Jones, Ryen W. White, Pavel Pecina, Dagobert Soergel, Xiaoli Huang, Izhak Shafran:
  Overview of the CLEF-2006 Cross-Language Speech Retrieval Track. 744-758
  
• Pavel Ircing, Ludek Müller:
  Benefit of Proper Language Processing for Czech Speech Retrieval in the CL-SR Task at CLEF 2006. 759-765
  
• Rafael M. Terol, Patricio Martínez-Barco, Manuel Palomar:
  Applying Logic Forms and Statistical Methods to CL-SR Performance. 766-769
  
• Robin Aly, Djoerd Hiemstra, Roeland Ordelman, Laurens van der Werff, Franciska de Jong:
  XML Information Retrieval from Spoken Word Archives. 770-777
  
• Muath Alzghool, Diana Zaiu Inkpen:
  Experiments for the Cross Language Speech Retrieval Task at CLEF 2006. 778-785
  
• Jianqiang Wang, Douglas W. Oard:
  CLEF-2006 CL-SR at Maryland: English and Czech. 786-793
  
• Gareth J. F. Jones, Ke Zhang, Adenike M. Lam-Adesina:
  Dublin City University at CLEF 2006: Cross-Language Speech Retrieval (CL-SR) Experiments. 794-802
  

Part VII: Multilingual Web Track (WebCLEF)

• Krisztian Balog, Leif Azzopardi, Jaap Kamps, Maarten de Rijke:
  Overview of WebCLEF 2006. 803-819
  
• Carlos G. Figuerola, José Luis Alonso Berrocal, Ángel F. Zazo Rodríguez, Emilio Rodríguez:
  Improving Web Pages Retrieval Using Combined Fields. 820-825
  
• David Pinto, Paolo Rosso, Ernesto Jiménez:
  A Penalisation-Based Ranking Approach for the Mixed Monolingual Task of WebCLEF 2006. 826-829
  
• Krisztian Balog, Maarten de Rijke:
  Index Combinations and Query Reformulations for Mixed Monolingual Web Retrieval. 830-833
  
• Ben Heuwing, Thomas Mandl, Robert Strötgen:
  Multilingual Web Retrieval Experiments with Field Specific Indexing Strategies for WebCLEF 2006 at the University of Hildesheim. 834-837
  
• Franco Rojas López, Héctor Jiménez-Salazar, David Pinto:
  Vocabulary Reduction and Text Enrichment at WebCLEF. 838-843
  
• Stephen Tomlinson:
  Experiments with the 4 Query Sets of WebCLEF 2006. 844-847
  
• Syntia Wijaya, Bimo Widhi, Tommy Khoerniawan, Mirna Adriani:
  Applying Relevance Feedback for Retrieving Web-Page Retrieval. 848-851
  

Part VIII: Cross-Language Geographical Retrieval (GeoCLEF)

• Fredric C. Gey, Ray R. Larson, Mark Sanderson, Kerstin Bischoff, Thomas Mandl, Christa Womser-Hacker, Diana Santos, Paulo Rocha, Giorgio Maria Di Nunzio, Nicola Ferro:
  GeoCLEF 2006: The CLEF 2006 Cross-Language Geographic Information Retrieval Track Overview. 852-876
  
• José Miguel Goñi-Menoyo, José Carlos González Cristóbal, Sara Lana-Serrano, Ángel Martínez-González:
  MIRACLE's Ad-Hoc and Geographical IR Approaches for CLEF 2006. 877-880
  
• Geoffrey Andogah:
  GIR Experimentation. 881-888
  
• Antonio Toral, Óscar Ferrández, Elisa Noguera, Zornitsa Kozareva, Andrés Montoyo, Rafael Muñoz:
  GIR with Geographic Query Expansion. 889-892
  
• Rocio Guillén:
  Monolingual and Bilingual Experiments in GeoCLEF2006. 893-900
  
• Johannes Leveling, Dirk Veiel:
  Experiments on the Exclusion of Metonymic Location Names from GIR. 901-904
  
• You-Heng Hu, Linlin Ge:
  The University of New South Wales at GeoCLEF 2006. 905-912
  
• Manuel García Vega, Miguel Angel García Cumbreras, Luis Alfonso Ureña López, José M. Perea-Ortega:
  GEOUJA System. The First Participation of the University of Jaén at GEOCLEF 2006. 913-917
  
• Manuel García Vega, Miguel Angel García Cumbreras, Luis Alfonso Ureña López, José M. Perea-Ortega, Francisco Javier Ariza-López, Óscar Ferrández, Antonio Toral, Zornitsa Kozareva, Elisa Noguera, Andrés Montoyo, Rafael Muñoz, Davide Buscaldi, Paolo Rosso:
  R2D2 at GeoCLEF 2006: A Combined Approach. 918-925
  
• Zhisheng Li, Chong Wang, Xing Xie, Xufa Wang, Wei-Ying Ma:
  MSRA Columbus at GeoCLEF 2006. 926-929
  
• Simon E. Overell, João Magalhães, Stefan M. Rüger:
  Forostar: A System for GIR. 930-937
  
• Yi Li, Nicola Stokes, Lawrence Cavedon, Alistair Moffat:
  NICTA I2D2 Group at GeoCLEF 2006. 938-945
  
• Kerstin Bischoff, Thomas Mandl, Christa Womser-Hacker:
  Blind Relevance Feedback and Named Entity Based Query Expansion for Geographic Retrieval at GeoCLEF 2006. 946-953
  
• Davide Buscaldi, Paolo Rosso, Emilio Sanchis:
  A WordNet-Based Indexing Technique for Geographical Information Retrieval. 954-957
  
• Claudia Hauff, Dolf Trieschnigg, Henning Rode:
  University of Twente at GeoCLEF 2006: Geofiltered Document Retrieval. 958-961
  
• Daniel Ferrés, Horacio Rodríguez:
  TALP at GeoCLEF 2006: Experiments Using JIRS and Lucene with the ADL Feature Type Thesaurus. 962-969
  
• Ray R. Larson, Fredric C. Gey:
  GeoCLEF Text Retrieval and Manual Expansion Approaches. 970-977
  
• Miguel E. Ruiz, June M. Abbas, David Mark, Stuart Shapiro, Sílvia Barcellos Southwick:
  UB at GeoCLEF 2006. 978-985
  
• Bruno Martins, Nuno Cardoso, Marcirio Silveira Chaves, Leonardo Andrade, Mário J. Silva:
  The University of Lisbon at GeoCLEF 2006. 986-994
  

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