Advances in Multilingual and Multimodal Information Retrieval: 8th Workshop of the Cross-Language Evaluation Forum, CLEF 2007, Budapest, Hungary, September 19-21, 2007, Revised Selected Papers

Front Matter....Pages -
What Happened in CLEF 2007....Pages 1-12
CLEF 2007: Ad Hoc Track Overview....Pages 13-32
Charles University at CLEF 2007 Ad-Hoc Track....Pages 33-36
Stemming Approaches for East European Languages....Pages 37-44
Applying Query Expansion Techniques to Ad Hoc Monolingual Tasks with the IR-n System....Pages 45-48
Bulgarian, Hungarian and Czech Stemming Using YASS....Pages 49-56
Sampling Precision to Depth 10000 at CLEF 2007....Pages 57-63
Disambiguation and Unknown Term Translation in Cross Language Information Retrieval....Pages 64-71
Cross-Language Retrieval with Wikipedia....Pages 72-79
Cross-Lingual Information Retrieval System for Indian Languages....Pages 80-87
Bengali, Hindi and Telugu to English Ad-Hoc Bilingual Task at CLEF 2007....Pages 88-94
Bengali and Hindi to English CLIR Evaluation....Pages 95-102
Improving Recall for Hindi, Telugu, Oromo to English CLIR....Pages 103-110
Hindi to English and Marathi to English Cross Language Information Retrieval Evaluation....Pages 111-118
Amharic-English Information Retrieval with Pseudo Relevance Feedback....Pages 119-126
Indonesian-English Transitive Translation for Cross-Language Information Retrieval....Pages 127-133
Robust Retrieval Experiments at the University of Hildesheim....Pages 134-136
SINAI at CLEF Ad-Hoc Robust Track 2007: Applying Google Search Engine for Robust Cross-Lingual Retrieval....Pages 137-142
Improving Robustness Using Query Expansion....Pages 143-147
English-to-French CLIR: A Knowledge-Light Approach through Character N -Grams Alignment....Pages 148-155
MIRACLE Progress in Monolingual Information Retrieval at Ad-Hoc CLEF 2007....Pages 156-159
The Domain-Specific Track at CLEF 2007....Pages 160-173
The XTRIEVAL Framework at CLEF 2007: Domain-Specific Track....Pages 174-181
Query Translation through Dictionary Adaptation....Pages 182-187
Experiments in Classification Clustering and Thesaurus Expansion for Domain Specific Cross-Language Retrieval....Pages 188-195
Domain-Specific IR for German, English and Russian Languages....Pages 196-199
Overview of the CLEF 2007 Multilingual Question Answering Track....Pages 200-236
Overview of the Answer Validation Exercise 2007....Pages 237-248
Overview of QAST 2007....Pages 249-256
Question Answering with Joost at CLEF 2007....Pages 257-260
What Happened to Esfinge in 2007?....Pages 261-268
Coreference Resolution for Questions and Answer Merging by Validation....Pages 269-272
Multilingual Question Answering through Intermediate Translation: LCC’s PowerAnswer at QA@CLEF 2007....Pages 273-283
RACAI’s Question Answering System at QA@CLEF2007....Pages 284-291
DFKI-LT at QA@CLEF 2007....Pages 292-299
University of Wolverhampton at CLEF 2007....Pages 300-307
Bilingual Question Answering Using CINDI_QA at QA@CLEF 2007....Pages 308-315
The University of Évora’s Participation in QA@CLEF-2007....Pages 316-323
Web-Based Anaphora Resolution for the QUASAR Question Answering System....Pages 324-327
A Lexical Approach for Spanish Question Answering....Pages 328-331
Finding Answers Using Resources in the Internet....Pages 332-335
UAIC Romanian QA System for QA@CLEF....Pages 336-343
The University of Amsterdam’s Question Answering System at QA@CLEF 2007....Pages 344-351
Combining Wikipedia and Newswire Texts for Question Answering in Spanish....Pages 352-355
QA@L 2 F, First Steps at QA@CLEF....Pages 356-363
Priberam’s Question Answering System in QA@CLEF 2007....Pages 364-371
Combining Logic and Aggregation for Answer Selection....Pages 372-376
On the Application of Lexical-Syntactic Knowledge to the Answer Validation Exercise....Pages 377-380
Combining Lexical Information with Machine Learning for Answer Validation at QA@CLEF 2007....Pages 381-386
Using Recognizing Textual Entailment as a Core Engine for Answer Validation....Pages 387-390
A Supervised Learning Approach to Spanish Answer Validation....Pages 391-394
UAIC Participation at AVE 2007....Pages 395-403
UNED at Answer Validation Exercise 2007....Pages 404-409
Adapting QA Components to Mine Answers in Speech Transcripts....Pages 410-413
The LIMSI Participation in the QAst Track....Pages 414-423
Robust Question Answering for Speech Transcripts Using Minimal Syntactic Analysis....Pages 424-432
Overview of the ImageCLEFphoto 2007 Photographic Retrieval Task....Pages 433-444
Overview of the ImageCLEF 2007 Object Retrieval Task....Pages 445-471
Overview of the ImageCLEFmed 2007 Medical Retrieval and Medical Annotation Tasks....Pages 472-491
FIRE in ImageCLEF 2007: Support Vector Machines and Logistic Models to Fuse Image Descriptors for Photo Retrieval....Pages 492-499
MIRACLE at ImageCLEFphoto 2007: Evaluation of Merging Strategies for Multilingual and Multimedia Information Retrieval....Pages 500-503
Using an Image-Text Parallel Corpus and the Web for Query Expansion in Cross-Language Image Retrieval....Pages 504-511
SINAI System: Combining IR Systems at ImageCLEFPhoto 2007....Pages 512-517
Multimodal Retrieval by Text–Segment Biclustering....Pages 518-521
Analysing an Approach to Information Retrieval of Visual Descriptions with IR-n, a System Based on Passages....Pages 522-529
DCU and UTA at ImageCLEFPhoto 2007....Pages 530-537
Cross-Language and Cross-Media Image Retrieval: An Empirical Study at ImageCLEF2007....Pages 538-545
Towards Annotation-Based Query and Document Expansion for Image Retrieval....Pages 546-553
Content-Based Image Retrieval Using Combined 2D Attribute Pattern Spectra....Pages 554-561
Text-Based Clustering of the ImageCLEFphoto Collection for Augmenting the Retrieved Results....Pages 562-568
Trans-Media Pseudo-Relevance Feedback Methods in Multimedia Retrieval....Pages 569-576
Cue Integration for Medical Image Annotation....Pages 577-584
Multiplying Concept Sources for Graph Modeling....Pages 585-592
MIRACLE at ImageCLEFmed 2007: Merging Textual and Visual Strategies to Improve Medical Image Retrieval....Pages 593-596
MIRACLE at ImageCLEFanot 2007: Machine Learning Experiments on Medical Image Annotation....Pages 597-600
Integrating MeSH Ontology to Improve Medical Information Retrieval....Pages 601-606
Speeding Up IDM without Degradation of Retrieval Quality....Pages 607-614
Content-Based Medical Image Retrieval Using Low-Level Visual Features and Modality Identification....Pages 615-622
Medical Image Retrieval and Automatic Annotation: OHSU at ImageCLEF 2007....Pages 623-630
Using Bayesian Network for Conceptual Indexing: Application to Medical Document Indexing with UMLS Metathesaurus....Pages 631-636
Baseline Results for the ImageCLEF 2007 Medical Automatic Annotation Task Using Global Image Features....Pages 637-640
Evaluation of Automatically Assigned MeSH Terms for Retrieval of Medical Images....Pages 641-648
University and Hospitals of Geneva Participating at ImageCLEF 2007....Pages 649-656
An Interactive and Dynamic Fusion-Based Image Retrieval Approach by CINDI....Pages 657-664
Using Pseudo-Relevance Feedback to Improve Image Retrieval Results....Pages 665-673
Overview of the CLEF-2007 Cross-Language Speech Retrieval Track....Pages 674-686
A Dirichlet-Smoothed Bigram Model for Retrieving Spontaneous Speech....Pages 687-694
Model Fusion Experiments for the CLSR Task at CLEF 2007....Pages 695-702
Dublin City University at CLEF 2007: Cross-Language Speech Retrieval Experiments....Pages 703-711
What Can and Cannot Be Found in Czech Spontaneous Speech Using Document-Oriented IR Methods — UWB at CLEF 2007 CL-SR Track....Pages 712-718
Using Information Gain to Filter Information in CLEF CL-SR Track....Pages 719-724
Overview of WebCLEF 2007....Pages 725-731
Segmentation of Web Documents and Retrieval of Useful Passages....Pages 732-736
Using Centrality to Rank Web Snippets....Pages 737-741
Using Web-Content for Retrieving Snippets....Pages 742-744
GeoCLEF 2007: The CLEF 2007 Cross-Language Geographic Information Retrieval Track Overview....Pages 745-772
Inferring Location Names for Geographic Information Retrieval....Pages 773-780
GeoParsing Web Queries....Pages 781-785
MIRACLE at GeoCLEF Query Parsing 2007: Extraction and Classification of Geographical Information....Pages 786-793
Relevance Measures Using Geographic Scopes and Types....Pages 794-801
Using Geographic Signatures as Query and Document Scopes in Geographic IR....Pages 802-810
Cheshire at GeoCLEF 2007: Retesting Text Retrieval Baselines....Pages 811-814
On the Relative Importance of Toponyms in GeoCLEF....Pages 815-822
Filtering for Improving the Geographic Information Search....Pages 823-829
TALP at GeoCLEF 2007: Results of a Geographical Knowledge Filtering Approach with Terrier....Pages 830-833
TALP at GeoQuery 2007: Linguistic and Geographical Analysis for Query Parsing....Pages 834-837
Applying Geo-feedback to Geographic Information Retrieval....Pages 838-841
Exploring LDA-Based Document Model for Geographic Information Retrieval....Pages 842-849
Mono-and Crosslingual Retrieval Experiments with Spatial Restrictions at GeoCLEF 2007....Pages 850-855
GIR Experiments with Forostar....Pages 856-863
Morpho Challenge Evaluation Using a Linguistic Gold Standard....Pages 864-872
Simple Morpheme Labelling in Unsupervised Morpheme Analysis....Pages 873-880
Unsupervised and Knowledge-Free Morpheme Segmentation and Analysis....Pages 881-891
Unsupervised Acquiring of Morphological Paradigms from Tokenized Text....Pages 892-899
ParaMor: Finding Paradigms across Morphology....Pages 900-907
SemEval-2007 Task 01: Evaluating WSD on Cross-Language Information Retrieval....Pages 908-917
Back Matter....Pages -