Evaluation of Multilingual and Multi-modal Information Retrieval: 7th Workshop of the Cross-Language Evaluation Forum, CLEF 2006, Alicante, Spain, September 20-22, 2006, Revised Selected Papers

Front Matter....Pages -
What Happened in CLEF 2006....Pages 1-10
Scientific Data of an Evaluation Campaign: Do We Properly Deal with Them?....Pages 11-20
CLEF 2006: Ad Hoc Track Overview....Pages 21-34
Hindi, Telugu, Oromo, English CLIR Evaluation....Pages 35-42
Amharic-English Information Retrieval....Pages 43-50
The University of Lisbon at CLEF 2006 Ad-Hoc Task....Pages 51-56
Query and Document Translation for English-Indonesian Cross Language IR....Pages 57-61
Passage Retrieval vs. Document Retrieval in the CLEF 2006 Ad Hoc Monolingual Tasks with the IR-n System....Pages 62-65
The PUCRS NLP-Group Participation in CLEF2006: Information Retrieval Based on Linguistic Resources....Pages 66-73
NLP-Driven Constructive Learning for Filtering an IR Document Stream....Pages 74-82
ENSM-SE at CLEF 2006 : Fuzzy Proxmity Method with an Adhoc Influence Function....Pages 83-90
A Study on the Use of Stemming for Monolingual Ad-Hoc Portuguese Information Retrieval....Pages 91-98
Benefits of Resource-Based Stemming in Hungarian Information Retrieval....Pages 99-106
Statistical vs. Rule-Based Stemming for Monolingual French Retrieval....Pages 107-110
A First Approach to CLIR Using Character N -Grams Alignment....Pages 111-118
SINAI at CLEF 2006 Ad Hoc Robust Multilingual Track: Query Expansion Using the Google Search Engine....Pages 119-126
Robust Ad-Hoc Retrieval Experiments with French and English at the University of Hildesheim....Pages 127-128
Comparing the Robustness of Expansion Techniques and Retrieval Measures....Pages 129-136
Experiments with Monolingual, Bilingual, and Robust Retrieval....Pages 137-144
Local Query Expansion Using Terms Windows for Robust Retrieval....Pages 145-152
Dublin City University at CLEF 2006: Robust Cross Language Track....Pages 153-156
JHU/APL Ad Hoc Experiments at CLEF 2006....Pages 157-162
The Domain-Specific Track at CLEF 2006: Overview of Approaches, Results and Assessment....Pages 163-169
Reranking Documents with Antagonistic Terms....Pages 170-173
Domain Specific Retrieval: Back to Basics....Pages 174-177
Monolingual Retrieval Experiments with a Domain-Specific Document Corpus at the Chemnitz University of Technology....Pages 178-185
iCLEF 2006 Overview: Searching the Flickr WWW Photo-Sharing Repository....Pages 186-194
Are Users Willing to Search Cross-Language? An Experiment with the Flickr Image Sharing Repository....Pages 195-204
Providing Multilingual Access to FLICKR for Arabic Users....Pages 205-216
Trusting the Results in Cross-Lingual Keyword-Based Image Retrieval....Pages 217-222
Overview of the CLEF 2006 Multilingual Question Answering Track....Pages 223-256
Overview of the Answer Validation Exercise 2006....Pages 257-264
Overview of the WiQA Task at CLEF 2006....Pages 265-274
Re-ranking Passages with LSA in a Question Answering System....Pages 275-279
Question Types Specification for the Use of Specialized Patterns in Prodicos System....Pages 280-289
Answer Translation: An Alternative Approach to Cross-Lingual Question Answering....Pages 290-299
Priberam’s Question Answering System in a Cross-Language Environment....Pages 300-309
LCC’s PowerAnswer at QA@CLEF 2006....Pages 310-317
Using Syntactic Knowledge for QA....Pages 318-327
A Cross-Lingual German-English Framework for Open-Domain Question Answering....Pages 328-338
Cross Lingual Question Answering Using QRISTAL for CLEF 2006....Pages 339-350
CLEF2006 Question Answering Experiments at Tokyo Institute of Technology....Pages 351-361
Quartz: A Question Answering System for Dutch....Pages 362-371
Experiments on Applying a Text Summarization System for Question Answering....Pages 372-376
 N -Gram vs. Keyword-Based Passage Retrieval for Question Answering....Pages 377-384
Cross-Lingual Romanian to English Question Answering at CLEF 2006....Pages 385-394
Finding Answers in the Œdipe System by Extracting and Applying Linguistic Patterns....Pages 395-404
Question Answering Beyond CLEF Document Collections....Pages 405-414
Using Machine Learning and Text Mining in Question Answering....Pages 415-423
Applying Dependency Trees and Term Density for Answer Selection Reinforcement....Pages 424-431
Interpretation and Normalization of Temporal Expressions for Question Answering....Pages 432-439
Relevance Measures for Question Answering, The LIA at QA@CLEF-2006....Pages 440-449
Monolingual and Cross–Lingual QA Using AliQAn and BRILI Systems for CLEF 2006....Pages 450-453
The Bilingual System MUSCLEF at QA@CLEF 2006....Pages 454-462
MIRACLE Experiments in QA@CLEF 2006 in Spanish: Main Task, Real-Time QA and Exploratory QA Using Wikipedia (WiQA)....Pages 463-472
A First Step to Address Biography Generation as an Iterative QA Task....Pages 473-482
The Effect of Entity Recognition on Answer Validation....Pages 483-489
A Knowledge-Based Textual Entailment Approach Applied to the AVE Task....Pages 490-493
Automatic Answer Validation Using COGEX....Pages 494-501
Paraphrase Substitution for Recognizing Textual Entailment....Pages 502-509
Experimenting a “General Purpose” Textual Entailment Learner in AVE....Pages 510-517
Answer Validation Through Robust Logical Inference....Pages 518-521
University of Alicante at QA@CLEF2006: Answer Validation Exercise....Pages 522-525
Towards Entailment-Based Question Answering: ITC-irst at CLEF 2006....Pages 526-536
Link-Based vs. Content-Based Retrieval for Question Answering Using Wikipedia....Pages 537-540
Identifying Novel Information Using Latent Semantic Analysis in the WiQA Task at CLEF 2006....Pages 541-549
A Bag-of-Words Based Ranking Method for the Wikipedia Question Answering Task....Pages 550-553
University of Alicante at WiQA 2006....Pages 554-560
A High Precision Information Retrieval Method for WiQA....Pages 561-568
QolA: Fostering Collaboration Within QA....Pages 569-578
Overview of the ImageCLEF 2006 Photographic Retrieval and Object Annotation Tasks....Pages 579-594
Overview of the ImageCLEFmed 2006 Medical Retrieval and Medical Annotation Tasks....Pages 595-608
Text Retrieval and Blind Feedback for the ImageCLEFphoto Task....Pages 609-612
Expanding Queries Through Word Sense Disambiguation....Pages 613-616
Using Visual Linkages for Multilingual Image Retrieval....Pages 617-624
Approaches of Using a Word-Image Ontology and an Annotated Image Corpus as Intermedia for Cross-Language Image Retrieval....Pages 625-632
Dublin City University at CLEF 2006: Experiments for the ImageCLEF Photo Collection Standard Ad Hoc Task....Pages 633-637
Image Classification with a Frequency–Based Information Retrieval Scheme for ImageCLEFmed 2006....Pages 638-643
Grayscale Radiograph Annotation Using Local Relational Features....Pages 644-651
MorphoSaurus in ImageCLEF 2006: The Effect of Subwords On Biomedical IR....Pages 652-659
Medical Image Retrieval and Automated Annotation: OHSU at ImageCLEF 2006....Pages 660-669
MedIC at ImageCLEF 2006: Automatic Image Categorization and Annotation Using Combined Visual Representations....Pages 670-677
Medical Image Annotation and Retrieval Using Visual Features....Pages 678-685
Baseline Results for the ImageCLEF 2006 Medical Automatic Annotation Task....Pages 686-689
A Refined SVM Applied in Medical Image Annotation....Pages 690-693
Inter-media Concept-Based Medical Image Indexing and Retrieval with UMLS at IPAL....Pages 694-701
UB at ImageCLEFmed 2006....Pages 702-705
Translation by Text Categorisation: Medical Image Retrieval in ImageCLEFmed 2006....Pages 706-710
Using Information Gain to Improve the ImageCLEF 2006 Collection....Pages 711-714
CINDI at ImageCLEF 2006: Image Retrieval & Annotation Tasks for the General Photographic and Medical Image Collections....Pages 715-724
Image Retrieval and Annotation Using Maximum Entropy....Pages 725-734
Inter-media Pseudo-relevance Feedback Application to ImageCLEF 2006 Photo Retrieval....Pages 735-738
ImageCLEF 2006 Experiments at the Chemnitz Technical University....Pages 739-743
Overview of the CLEF-2006 Cross-Language Speech Retrieval Track....Pages 744-758
Benefit of Proper Language Processing for Czech Speech Retrieval in the CL-SR Task at CLEF 2006....Pages 759-765
Applying Logic Forms and Statistical Methods to CL-SR Performance....Pages 766-769
XML Information Retrieval from Spoken Word Archives....Pages 770-777
Experiments for the Cross Language Speech Retrieval Task at CLEF 2006....Pages 778-785
CLEF-2006 CL-SR at Maryland: English and Czech....Pages 786-793
Dublin City University at CLEF 2006: Cross-Language Speech Retrieval (CL-SR) Experiments....Pages 794-802
Overview of WebCLEF 2006....Pages 803-819
Improving Web Pages Retrieval Using Combined Fields....Pages 820-825
A Penalisation-Based Ranking Approach for the Mixed Monolingual Task of WebCLEF 2006....Pages 826-829
Index Combinations and Query Reformulations for Mixed Monolingual Web Retrieval....Pages 830-833
Multilingual Web Retrieval Experiments with Field Specific Indexing Strategies for WebCLEF 2006 at the University of Hildesheim....Pages 834-837
Vocabulary Reduction and Text Enrichment at WebCLEF....Pages 838-843
Experiments with the 4 Query Sets of WebCLEF 2006....Pages 844-847
Applying Relevance Feedback for Retrieving Web-Page Retrieval....Pages 848-851
GeoCLEF 2006: The CLEF 2006 Cross-Language Geographic Information Retrieval Track Overview....Pages 852-876
MIRACLE’s Ad-Hoc and Geographical IR Approaches for CLEF 2006....Pages 877-880
GIR Experimentation....Pages 881-888
GIR with Geographic Query Expansion....Pages 889-892
Monolingual and Bilingual Experiments in GeoCLEF2006....Pages 893-900
Experiments on the Exclusion of Metonymic Location Names from GIR....Pages 901-904
The University of New South Wales at GeoCLEF 2006....Pages 905-912
GEOUJA System. The First Participation of the University of Jaén at GEOCLEF 2006....Pages 913-917
R2D2 at GeoCLEF 2006: A Combined Approach....Pages 918-925
MSRA Columbus at GeoCLEF 2006....Pages 926-929
Forostar: A System for GIR....Pages 930-937
NICTA I2D2 Group at GeoCLEF 2006....Pages 938-945
Blind Relevance Feedback and Named Entity Based Query Expansion for Geographic Retrieval at GeoCLEF 2006....Pages 946-953
A WordNet-Based Indexing Technique for Geographical Information Retrieval....Pages 954-957
University of Twente at GeoCLEF 2006: Geofiltered Document Retrieval....Pages 958-961
TALP at GeoCLEF 2006: Experiments Using JIRS and Lucene with the ADL Feature Type Thesaurus....Pages 962-969
GeoCLEF Text Retrieval and Manual Expansion Approaches....Pages 970-977
UB at GeoCLEF 2006....Pages 978-985
The University of Lisbon at GeoCLEF 2006....Pages 986-994
Back Matter....Pages -