| Vol-1173 urn:nbn:de:0074-1173-7 Copyright © 2007 for the individual papers by the papers' authors. Copying permitted only for private and academic purposes. This volume is published and copyrighted by its editors.

# CLEF 2007
CLEF2007 Working Notes

### Working Notes for CLEF 2007 Workshop
co-located with the 11th European Conference on Digital Libraries (ECDL 2007)

### Budapest, Hungary, September 19-21, 2007.

Edited by

### Alessandro Nardi *
Carol Peters *
Nicola Ferro (CEUR-WS Republishing Managing Editor) **

* Istituto di Scienze e Tecnologie dell'Informazione (ISTI), CNR, Pisa, Italy
** Department of Information Engineering (DEI), University of Padua, Via Gradenigo 6/B, 35131, Padova, Italy

## Table of Contents

### Preface

- What happened in CLEF 2007: Introduction to the Working Notes
  Carol Peters

### Cross-Language Geographical Information Retrieval

- GeoCLEF 2007: the CLEF 2007 Cross-Language Geographic Information Retrieval Track Overview
  Thomas Mandl, Fredric Gey, Giorgio Di Nunzio, Nicola Ferro, Ray Larson, Mark Sanderson, Diana Santos, Christa Womser-Hacker, Xing Xie
- Query Parsing Task for GeoCLEF2007 Report
  Zhisheng Li, Chong Wang, Xing Xie, Wei-Ying Ma
- University of Groningen at GeoCLEF 2007
  Geoffrey Andogah, Gosse Bouma
- MSRA Columbus at GeoCLEF2007
  Zhisheng Li, Chong Wang, Xing Xie, Wei-Ying Ma
- GIR Experiments with Forostar at GeoCLEF 2007
  Simon Overell, João Magalhães, Stefan Rüger
- MIRACLE at GeoCLEF Query Parsing 2007: Extraction and Classification of Geographical Information
  Sara Lana-Serrano, Julio Villena-Román, José Miguel Goñi-Menoyo
- Cheshire at GeoCLEF 2007: Retesting Text Retrieval Baselines
  Ray R. Larson
- GEOUJA System. University of Jaén at GeoCLEF 2007
  José M. Perea-Ortega, Miguel A. García-Cumbreras, Manuel García-Vega, Arturo Montejo-Ráez
- Monolingual Retrieval Experiments with Spatial Restrictions at GeoCLEF 2007
  Ralph Kolle, Ben Heuwing, Thomas Mandl, Christa Womser-Hacker
- GeoCLEF2007 Experiments in Query Parsing and Cross-language GIR
  Rocio Guillén
- The UPV at GeoCLEF 2007
  Davide Buscaldi, Paolo Rosso
- University of Hagen at GeoCLEF 2007: Exploring Location Indicators for Geographic Information Retrieval
  Johannes Leveling, Sven Hartrumpf
- TALP at GeoCLEF 2007: Using Terrier with Geographical Knowledge Filtering
  Daniel Ferrés, Horacio Rodríguez
- The University of Lisbon at GeoCLEF 2007
  Nuno Cardoso, David Cruz, Marcirio Chaves, Mário J. Silva
- TALP at GeoQuery 2007: Linguistic and Geographical Analysis for Query Parsing
  Daniel Ferrés, Horacio Rodríguez
- Location Identification for Geographic Information Retrieval
  Nasikhin, Mirna Adriani

### Cross-Language Retrieval in Image Collections

- Overview of the ImageCLEFphoto 2007 Photographic Retrieval Task
  Michael Grubinger, Paul Clough, Allan Hanbury, Henning Muller
- Overview of the ImageCLEF 2007 Object Retrieval Task
  Thomas Deselaers, Allan Hanbury, Ville Viitaniemi, András Bencúr, Mátyás Brendel, Bálint Daróczy, Hugo Jair Escalante Balderas, Theo Gevers, Carlos Arturo Hernández Gracidas, Steven C. H. Hoi, Jorma Laaksonen, Mingjing Li, Heidy Marisol Marin Castro, Hermann Ney, Xiaoguang Rui, Nicu Sebe, Julian Stöttinger, Lei Wu
- Overview of the ImageCLEF 2007 Medical Retrieval and Annotation Tasks
  Henning Muller, Thomas Deselaers, Eugene Kim, Jayashree Kalpathy-Cramer, Thomas M. Deserno, William Hersh
- Linked Relevance Feedback for the ImageCLEF Photo Task
  Ray R. Larson
- Exploring Image, Text and Geographic Evidences in ImageCLEF 2007
  Joao Magalhaes, Simon Overell, Stefan Rüger
- MIRACLE at ImageCLEFphoto 2007: Evaluation of Merging Strategies for Multilingual and Multimedia Information Retrieval
  Julio Villena-Roman, Sara Lana-Serrano, José Luis Martínez-Fernández, José Carlos González-Cristóbal
- XRCE's Participation to ImageCLEFphoto 2007
  Stephane Clinchant, Jean-Michel Renders, Gabriela Csurka
- Cross-Language and Cross-Media Image Retrieval: An Empirical Study at ImageCLEF2007
  Steven C. H. Hoi
- Experiment for Using Web Information to do Query and Document Expansion
  Yih-Chen Chang, Hsin-Hsi Chen
- Experiments with Clustering the Collection at ImageCLEF 2007
  Osama El Demerdash, Leila Kosseim, Sabine Bergler
- TIA-INAOE's Participation at ImageCLEF 2007
  H. Jair Escalante, Carlos A. Hernández, Aurelio López, Heidy M. Marín, Manuel Montes, Eduardo Morales, Luis E. Sucar, Luis Villaseñor
- IPAL at ImageClef 2007 Mixing Features, Models and Knowledge.
  Sheng Gao, Jean-Pierre Chevallet, Thi Hoang Diem Le, Trong Ton Pham, Joo Hwee Lim
- DCU and UTA at ImageCLEFPhoto 2007
  Anni Jarvelin, Peter Wilkins, Tomasz Adamek, Eija Airio, Gareth J. F. Jones, Alan F. Smeaton, Eero Sormunen
- Information Retrieval of Visual Descriptions with IR-n System based on Passages
  Sergio Navarro, Fernando Llopis, Rafael Muñoz Guillena, Elisa Noguera
- Multi-Modal Interactive Approach to ImageCLEF 2007 Photographic and Medical Retrieval Tasks by CINDI
  M. M. Rahman, Bipin C. Desai, Prabir Bhattacharya
- Cross-modal Retrieval by Text and Image Feature Biclustering
  Andras Benczur, István Bíró, Mátyás Brendel, Károly Csalogány, Bálint Daróczy, Dávid Siklósi
- Using Pseudo-relevance Feedback to Improve Image Retrieval Results
  Mouna Torjmen, Karen Pinel-Sauvagnat, Mohand Boughanem
- Content-based Image Retrieval Using Shape-Size Pattern Spectra
  Florence Tushabe, Michael H. F. Wilkinson
- Experiments for the ImageCLEF 2007 Photographic Retrieval Task
  Thomas Wilhelm, Jens Kursten, Maximilian Eibl
- CLEF2007: Image Annotation Task: an SVM-based Cue Integration Approach
  Tatiana Tommasi, Francesco Orabona, Barbara Caputo
- CYU_IM@ImageCLEF 2007: Medical Image Annotation Task
  Pei-Cheng Cheng, Wei-Pang Yang
- Multiplying Concept Sources for Graph Modeling
  Loïc Maisonnasse, Eric Gaussier, Jean-Pierre Chevallet
- MIRACLE at ImageCLEFmed 2007: Merging Textual and Visual Strategies to Improve Medical Image Retrieval
  Julio Villena-Román, Sara Lana-Serrano, José Carlos González-Cristóbal
- MIRACLE at ImageCLEFanot 2007: Machine Learning Experiments on Medical Image Annotation
  Sara Lana-Serrano, Julio Villena-Román, José Carlos González-Cristóbal, José Miguel Goñi-Menoyo
- Medical Image Retrieval and Automatic Annotation: OHSU at ImageCLEF 2007
  Jayashree Kalpathy-Cramer, William Hersh
- Speeding up IDM without Degradation of Retrieval Quality
  Michael Springmann, Heiko Schuldt
- Baseline Results for the CLEF 2007 Medical Automatic Annotation Task
  Mark O. Guld, Thomas M. Deserno
- SINAI at ImageCLEF 2007
  M.C. Díaz-Galiano, M.A. García-Cumbreras, M.T. Martín-Valdivia, A. Montejo-Raez, L.A. Ureña-López
- University and Hospitals of Geneva at ImageCLEF 2007
  Xin Zhou, Julien Gobeill, Patrick Ruch, Henning Müller
- FIRE in ImageCLEF 2007
  Thomas Deselaers, Tobias Gass, Tobias Weyand, Hermann Ney

### Cross-Language Speech Retrieval

- Overview of the CLEF-2007 Cross Language Speech Retrieval Track
  Pavel Pecina, Petra Hoffmannová, Gareth J.F. Jones, Ying Zhang, Douglas W. Oard
- SINAI at CL-SR Task at CLEF 2007
  M.C. Díaz-Galiano, M.T. Martín-Valdivia, M.A. García-Cumbreras, L.A. Ureña-López,
- Model Fusion Experiments for the Cross Language Speech Retrieval Task at CLEF 2007
  Muath Alzghool, Diana Inkpen
- University of Chicago at the CLEF 2007 Cross Language Speech Retrieval Track
  Gina-Anne Levow
- Attempts to Search Czech Spontaneous Spoken Interviews - the University of West Bohemia at CLEF 2007 CL-SR track
  Pavel Ircing, Ludek Muller
- Dublin City University at CLEF 2007: Cross Language Speech Retrieval (CL-SR) Experiments
  Ying Zhang, Gareth J. F. Jones, Ke Zhang
- Brown at CL-SR'07: Retrieving Conversational Speech in English and Czech
  Matthew Lease, Eugene Charniak
- Charles University at CLEF 2007 CL-SR Track
  Pavel Ceska, Pavel Pecina
- The University of Amsterdam at the CLEF Cross Language Speech Retrieval Track 2007
  Bouke Huurnink

### Domain-Specific Information Retrieval

- The Domain -Specific Track at CLEF 2007
  Vivien Petras, Stefan Baerisch, Maximillian Stempfhuber
- Experiments in Classification Clustering and Thesaurus Expansion for Domain Specific Cross-Language Retrieval
  Ray R. Larson
- XRCE's Participation to CLEF 2007 Domain-Specific Track
  Stephane Clinchant, Jean-Michel Renders
- Domain-Specific Cross Language Retrieval: Comparing and Merging Structured and Unstructured Indices
  Jens Kursten, Maximilian Eibl
- Domain-Specific IR for German, English and Russian Languages
  Claire Fautsch, Ljiljana Dolamic, Samir Abdou, Jacques Savoy

### Multilingual Document Retrieval

- CLEF 2007: Ad Hoc Track Overview
  Giorgio M. Di Nunzio, Nicola Ferro, Thomas Mandl, Carol Peters
- Czech Monolingual Information Retrieval Using Off-The-Shelf Components - the University of West Bohemia at CLEF 2007 Ad-Hoc track
  Pavel Ircing, Luděk Müller
- Sampling Precision to Depth 10000: Evaluation Experiments at CLEF 2007
  Stephen Tomlinson
- Applying Query Expansion Techniques to Ad Hoc Monolingual tasks with the IR-n system
  Elisa Noguera, Fernando Llopis
- Stemming Approaches for East European Languages
  Ljiljana Dolamic, Jacques Savoy
- Hungarian and Czech Stemming using YASS
  Prasenjit Majumder, Mandar Mitra, Dipasree Pal
- Charles University at CLEF 2007 Ad-Hoc Track
  Pavel Ceska, Pavel Pecina
- Ambiguity and Unknown Term Translation in CLIR
  Dong Zhou, Mark Truran, Tim Brailsford
- Evaluating Language Resources for CLEF 2007
  Herika Hayurani, Syandra Sari, Mirna Adriani
- Amharic-English Information Retrieval with Pseudo Relevance Feedback
  Atelach Alemu Argaw
- Performing Cross-Language Retrieval with Wikipedia
  Péter Schonhofen, András Benczúr, István Bíró, Károly Csalogány
- Oromo-English Information Retrieval Experiments at CLEF 2007
  Kula Kekeba Tune, Vasudeva Varma
- Cross-Lingual Information Retrieval System for Indian Languages
  Jagadeesh Jagarlamudi, A Kumaran
- Bengali, Hindi and Telugu to English Ad-hoc Bilingual Task at CLEF 2007
  Sivaji Bandyopadhyay, Tapabrata Mondal, Sudip Kumar Naskar, Asif Ekbal, Rejwanul Haque, Srinivasa Rao Godavarthy
- Hindi and Marathi to English Cross Language Information Retrieval at CLEF 2007
  Manoj Kumar Chinnakotla, Sagar Ranadive, Pushpak Bhattacharyya, Om P. Damani
- IIIT Hyderabad at CLEF 2007 - Adhoc Indian Language CLIR Task
  Prasad Pingali, Vasudeva Varma
- Bengali and Hindi to English Cross-language Text Retrieval under Limited Resources
  Debasis Mandal, Sandipan Dandapat, Mayank Gupta, Pratyush Banerjee, Sudeshna Sarkar
- Report of MIRACLE team for the Ad-Hoc Track in CLEF 2007
  José Miguel Goni-Menoyo, José C. González-Cristóbal, Julio Villena-Román, Sara Lana-Serrano
- SINAI at CLEF Ad-Hoc Robust Track 2007: Applying Google Search Engine for Robust Cross-Lingual Retrieval
  Fernando Martínez-Santiago, Arturo Montejo-Ráez, Miguel A. García Cumbrerasr
- CoLesIR at CLEF 2007: from English to French via Character N-Grams
  Jesús Vilares, Michael P. Oakes, Manuel Vilares
- Robust Retrieval Experiments at the University of Hildesheim
  Ben Heuwing, Thomas Mandl
- REINA at CLEF 2007 Robust Task
  Angel F. Zazo, Carlos G. Figuerola, José L. Alonso Berrocal

### MorphoChallenge

- Overview of Morpho Challenge in CLEF 2007
  Mikko Kurimo, Mathias Creutz, Ville Turunen
- Using Hand-Written Rewrite Rules to Induce Underlying Morphology
  Michael A. Tepper
- Towards Unsupervised Induction of Morphophonemic Rules
  Erwin Chan
- Simple Morpheme Labelling in Unsupervised Morpheme Analysis
  Delphine Bernhard
- Unsupervised and Knowledge-free Morpheme Segmentation and Analysis
  Stefan Bordag
- ParaMor: Finding Paradigms across Morphology
  Christian Monson, Jaime Carbonell, Alon Lavie, Lori Levin
- Unsupervised Acquiring of Morphological Paradigms from Tokenized Text
  Daniel Zeman
- N-Gram Morphemes for Retrieval
  Paul McNamee, James Mayfield
- Unsupervised Morpheme Analysis Evaluation by a Comparison to a Linguistic Gold Standard - Morpho Challenge 2007
  Mikko Kurimo, Mathias Creutz, Matti Varjokallio
- Unsupervised Morpheme Analysis Evaluation by IR experiments - Morpho Challenge 2007
  Mikko Kurimo, Mathias Creutz, Ville Turunen

### Multilingual Web Track

- Overview of WebCLEF 2007
  Valentin Jijkoun, Maarten de Rijke
- REINA at WebCLEF 2007. Selecting Useful Snippets
  Carlos G. Figuerola, José L. Alonso Berrocal, ángel F. Zazo Rodríguez, Emilio Rodríguez
- The University of Amsterdam at WebCLEF 2007: Using Centrality to Rank Web Snippets
  Valentin Jijkoun, Maarten de Rijke
- Dublin City University at WebCLEF 2007
  Sisay Fissaha Adafre

### Multiple Language Question Answering

- 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 Sutcliffe
- Overview of the Answer Validation Exercise 2007
  Anselmo Peñas, Álvaro Rodrigo, Felisa Verdejo
- Overview of QAST 2007
  Jordi Turmo, Pere Comas, Christelle Ayache, Djamel Mostefa, Sophie Rosset, Lori Lamel
- Question Answering with Joost at CLEF 2007
  Gosse Bouma, Geert Kloosterman, Jori Mur
- Cross Lingual Question Answering using CINDI_QA for QA@CLEF 2007
  Chedid Haddad, Bipin C. Desai
- AnswerFinder at QA@CLEF 2007
  Menno van Zaanen, Diego Mollá
- QA@L2F@QA@CLEF
  Ana Mendes, Luísa Coheur, Nuno J. Mamede, Luis Romão, João Loureiro, Ricardo Ribeiro, Fernando Batista, David Martins de Matos
- Esfinge at CLEF 2007: First Steps in a Multiple Question and Multiple Answer Approach
  Luís Miguel Cabral, Luís Fernando Costa, Diana Santos
- The Senso Question Answering Approach to Portuguese QA@CLEF-2007
  José Saias, Paulo Quaresma
- INAOE's Participation at QA@CLEF 2007
  Alberto Tellez, Antonio Juárez, Gustavo Hernández, Claudia Denicia, Esaú Villatoro, Manuel Montes, Luis Villaseñor
- MIRACLE Question Answering System for Spanish at CLEF 2007
  César de Pablo-Sánchez, José Luis Martínez, Ana García-Ledesma, Doaa Samy, Paloma Martínez, Antonio Moreno-Sandoval, Harith Al-Jumaily
- Multilingual Question Answering through Intermediate Translation: LCC's PowerAnswer at QA@CLEF 2007
  Mitchell Bowden, Marian Olteanu, Pasin Suriyentrakorn, Thomas d'Silva, Dan Moldovan
- DFKI-LT at QA@CLEF 2007
  Bogdan Sacaleanu, Günter Neumann, Christian Spurk
- RACAI's Question Answering System at QA@CLEF 2007
  Dan Tufiş, Dan Ştefănescu, Radu Ion, Alexandru Ceauşu
- The UPV at QA@CLEF 2007
  Davide Buscaldi, Yassine Benajiba, Paolo Rosso, Emilio Sanchis
- University of Wolverhampton at CLEF 2007
  Georgiana Puscasu, Constantin Orasan
- Cross Lingual Question Answering using QRISTAL for CLEF 2007
  Dominique Laurent, Patrick Séguéla, Sophie Nègre
- University of Hagen at QA@CLEF 2007: Coreference Resolution for Questions and Answer Merging
  Sven Hartrumpf, Ingo Glöckner, Johannes Leveling
- Priberam's Question Answering System in QA@CLEF 2007
  Carlos Amaral, Adán Cassan, Helena Figueira, André Martins, Afonso Mendes, Pedro Mendes, Cláudia Pinto, Daniel Vidal
- The University of Amsterdam at CLEF@QA 2007
  Valentin Jijkoun, Katja Hofmann, David Ahn, Mahboob Alam Khalid, Joris van Rantwijk, Maarten de Rijke, Erik Tjong, Kim Sang
- FBK-irst at CLEF 2007
  Milen Kouylekov, Matteo Negri, Bernardo Magnini, Bonaventura Coppola
- Finding Answers Using Resources in the Internet
  Septian Adiwibowo, Mirna Adriani
- Making RAPOSA (FOX) Smarter
  Luís Sarmento, Eugénio Oliveira
- UNED at Answer Validation Exercise 2007
  álvaro Rodrigo, Anselmo Penas, Felisa Verdejo
- DFKI-LT at AVE 2007: Using Recognizing Textual Entailment for Answer Validation
  Rui Wang, Günter Neumann
- SINAI at QA@CLEF 2007. Answer Validation Exercise
  M.A. García-Cumbreras, J.M. Perea-Ortega, F. Martínez Santiago, L.A. Ureña-López
- The Contribution of the University of Alicante to AVE 2007
  Óscar Ferrandez, Daniel Micol, Rafael Muñoz, Manuel Palomar
- University of Hagen at CLEF 2007: Answer Validation Exercise
  Ingo Glockner
- INAOE at AVE 2007: Experiments in Spanish Answer Validation
  Alberto Téllez-Valero, Manuel Montes-y-Gómez, Luis Villaseñor-Pineda
- Robust Question Answering for Speech Transcripts Using Minimal Syntactic Analysis
  Pere R. Comas, Jordi Turmo, Mihai Surdeanu
- The LIMSI Participation in the QAst Track
  Sophie Rosset, Olivier Galibert, Gilles Adda, Eric Bilinski
- AnswerFinder at QAst 2007: Named Entity Recognition for QA on Speech Transcripts
  Diego Molla, Steve Cassidy, Menno van Zaanen
- CLEF2007 Question Answering Experiments at Tokyo Institute of Technology
  E.W.D. Whittaker, J.R. Novak, M. Heie, S. Furui
- DFKI-LT at QAST 2007: Adapting QA Components to Mine Answers in Speech Transcripts
  Gunter Neumann, Rui Wang

### SemEval

- SemEval-2007 Task 01: Evaluating WSD on Cross-Language Information Retrieval
  Eneko Agirre, Oier Lopez de Lacalle, Bernardo Magnini, Arantxa Otegi, German Rigau, Piek Vossen

### Appendix

- Appendix A: Results of the Ad-hoc Bilingual and Monolingual Tasks
- Appendix B: Results of the Core Tracks - Ad-hoc Robust Tasks
- Appendix C: Results of the Domain Specific Track
- Appendix D: Results of GeoCLEF Track
- Appendix E: Participating Institutions

2014-08-18: submitted by Nicola Ferro
2014-08-22: published on CEUR-WS.org |valid HTML5|