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Computer Science - Artificial Intelligence | Advances in Multilingual and Multimodal Information Retrieval - 8th Workshop of the Cross-Language

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

Jijkoun, V., Mandl, Th., Müller, H., Oard, D.W., Petras, V., Santos, D. (Eds.)


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This book constitutes the thoroughly refereed proceedings of the 8th Workshop of the Cross-Language Evaluation Forum, CLEF 2007, held in Budapest, Hungary, September 2007.

The revised and extended papers were carefully reviewed and selected for inclusion in the book. There are 115 contributions in total and an introduction. The seven distrinct evaluation tracks in CLEF 2007, are designed to test the performance of a wide range of multilingual information access systems or system components. The papers are organized in topical sections on Multilingual Textual Document Retrieval (Ad Hoc), Domain-Specific Information Retrieval (Domain-Specific), Multiple Language Question Answering (QA@CLEF), cross-language retrieval in image collections (Image CLEF), cross-language speech retrieval (CL-SR), multilingual Web retrieval (WebCLEF), cross-language geographical retrieval (GeoCLEF), and CLEF in other evaluations.

Content Level » Research

Keywords » Clustering - Parsing - Thesaurus - WebCLEF - YASS - answer validation - bilingual information retrieval - classification - corpus - cross-language queries - cross-language question a - cross-lingual - information retrieval - machine learning - multilingual

Related subjects » Artificial Intelligence - Database Management & Information Retrieval - Linguistics

Table of contents 

What Happened in CLEF 2007.- I: Multilingual Textual Document Retrieval (Ad Hoc).- CLEF 2007: Ad Hoc Track Overview.- Charles University at CLEF 2007 Ad-Hoc Track.- Stemming Approaches for East European Languages.- Applying Query Expansion Techniques to Ad Hoc Monolingual Tasks with the IR-n System.- Bulgarian, Hungarian and Czech Stemming Using YASS.- Sampling Precision to Depth 10000 at CLEF 2007.- Disambiguation and Unknown Term Translation in Cross Language Information Retrieval.- Cross-Language Retrieval with Wikipedia.- Cross-Lingual Information Retrieval System for Indian Languages.- Bengali, Hindi and Telugu to English Ad-Hoc Bilingual Task at CLEF 2007.- Bengali and Hindi to English CLIR Evaluation.- Improving Recall for Hindi, Telugu, Oromo to English CLIR.- Hindi to English and Marathi to English Cross Language Information Retrieval Evaluation.- Amharic-English Information Retrieval with Pseudo Relevance Feedback.- Indonesian-English Transitive Translation for Cross-Language Information Retrieval.- Robust Retrieval Experiments at the University of Hildesheim.- SINAI at CLEF Ad-Hoc Robust Track 2007: Applying Google Search Engine for Robust Cross-Lingual Retrieval.- Improving Robustness Using Query Expansion.- English-to-French CLIR: A Knowledge-Light Approach through Character N-Grams Alignment.- MIRACLE Progress in Monolingual Information Retrieval at Ad-Hoc CLEF 2007.- II: Domain-Specific Information Retrieval (Domain-Specific).- The Domain-Specific Track at CLEF 2007.- The XTRIEVAL Framework at CLEF 2007: Domain-Specific Track.- Query Translation through Dictionary Adaptation.- Experiments in Classification Clustering and Thesaurus Expansion for Domain Specific Cross-Language Retrieval.- Domain-Specific IR for German, English and Russian Languages.- III: Multiple Language Question Answering (QA@CLEF).- Overview of the CLEF 2007 Multilingual Question Answering Track.- Overview of the Answer Validation Exercise 2007.- Overview of QAST 2007.- Question Answering with Joost at CLEF 2007.- What Happened to Esfinge in 2007?.- Coreference Resolution for Questions and Answer Merging by Validation.- Multilingual Question Answering through Intermediate Translation: LCC’s PowerAnswer at QA@CLEF 2007.- RACAI’s Question Answering System at QA@CLEF2007.- DFKI-LT at QA@CLEF 2007.- University of Wolverhampton at CLEF 2007.- Bilingual Question Answering Using CINDI_QA at QA@CLEF 2007.- The University of Évora’s Participation in QA@CLEF-2007.- Web-Based Anaphora Resolution for the QUASAR Question Answering System.- A Lexical Approach for Spanish Question Answering.- Finding Answers Using Resources in the Internet.- UAIC Romanian QA System for QA@CLEF.- The University of Amsterdam’s Question Answering System at QA@CLEF 2007.- Combining Wikipedia and Newswire Texts for Question Answering in Spanish.- QA@L2F, First Steps at QA@CLEF.- Priberam’s Question Answering System in QA@CLEF 2007.- Combining Logic and Aggregation for Answer Selection.- On the Application of Lexical-Syntactic Knowledge to the Answer Validation Exercise.- Combining Lexical Information with Machine Learning for Answer Validation at QA@CLEF 2007.- Using Recognizing Textual Entailment as a Core Engine for Answer Validation.- A Supervised Learning Approach to Spanish Answer Validation.- UAIC Participation at AVE 2007.- UNED at Answer Validation Exercise 2007.- Adapting QA Components to Mine Answers in Speech Transcripts.- The LIMSI Participation in the QAst Track.- Robust Question Answering for Speech Transcripts Using Minimal Syntactic Analysis.- IV: Cross-Language Retrieval in Image Collections (ImageCLEF).- Overview of the ImageCLEFphoto 2007 Photographic Retrieval Task.- Overview of the ImageCLEF 2007 Object Retrieval Task.- Overview of the ImageCLEFmed 2007 Medical Retrieval and Medical Annotation Tasks.- FIRE in ImageCLEF 2007: Support Vector Machines and Logistic Models to Fuse Image Descriptors for Photo Retrieval.- MIRACLE at ImageCLEFphoto 2007: Evaluation of Merging Strategies for Multilingual and Multimedia Information Retrieval.- Using an Image-Text Parallel Corpus and the Web for Query Expansion in Cross-Language Image Retrieval.- SINAI System: Combining IR Systems at ImageCLEFPhoto 2007.- Multimodal Retrieval by Text–Segment Biclustering.- Analysing an Approach to Information Retrieval of Visual Descriptions with IR-n, a System Based on Passages.- DCU and UTA at ImageCLEFPhoto 2007.- Cross-Language and Cross-Media Image Retrieval: An Empirical Study at ImageCLEF2007.- Towards Annotation-Based Query and Document Expansion for Image Retrieval.- Content-Based Image Retrieval Using Combined 2D Attribute Pattern Spectra.- Text-Based Clustering of the ImageCLEFphoto Collection for Augmenting the Retrieved Results.- Trans-Media Pseudo-Relevance Feedback Methods in Multimedia Retrieval.- Cue Integration for Medical Image Annotation.- Multiplying Concept Sources for Graph Modeling.- MIRACLE at ImageCLEFmed 2007: Merging Textual and Visual Strategies to Improve Medical Image Retrieval.- MIRACLE at ImageCLEFanot 2007: Machine Learning Experiments on Medical Image Annotation.- Integrating MeSH Ontology to Improve Medical Information Retrieval.- Speeding Up IDM without Degradation of Retrieval Quality.- Content-Based Medical Image Retrieval Using Low-Level Visual Features and Modality Identification.- Medical Image Retrieval and Automatic Annotation: OHSU at ImageCLEF 2007.- Using Bayesian Network for Conceptual Indexing: Application to Medical Document Indexing with UMLS Metathesaurus.- Baseline Results for the ImageCLEF 2007 Medical Automatic Annotation Task Using Global Image Features.- Evaluation of Automatically Assigned MeSH Terms for Retrieval of Medical Images.- University and Hospitals of Geneva Participating at ImageCLEF 2007.- An Interactive and Dynamic Fusion-Based Image Retrieval Approach by CINDI.- Using Pseudo-Relevance Feedback to Improve Image Retrieval Results.- V: Cross-Language Speech Retrieval (CL-SR).- Overview of the CLEF-2007 Cross-Language Speech Retrieval Track.- A Dirichlet-Smoothed Bigram Model for Retrieving Spontaneous Speech.- Model Fusion Experiments for the CLSR Task at CLEF 2007.- Dublin City University at CLEF 2007: Cross-Language Speech Retrieval Experiments.- What Can and Cannot Be Found in Czech Spontaneous Speech Using Document-Oriented IR Methods — UWB at CLEF 2007 CL-SR Track.- Using Information Gain to Filter Information in CLEF CL-SR Track.- VI: Multilingual Web Retrieval (WebCLEF).- Overview of WebCLEF 2007.- Segmentation of Web Documents and Retrieval of Useful Passages.- Using Centrality to Rank Web Snippets.- Using Web-Content for Retrieving Snippets.- VII: Cross-Language Geographical Retrieval (GeoCLEF).- GeoCLEF 2007: The CLEF 2007 Cross-Language Geographic Information Retrieval Track Overview.- Inferring Location Names for Geographic Information Retrieval.- GeoParsing Web Queries.- MIRACLE at GeoCLEF Query Parsing 2007: Extraction and Classification of Geographical Information.- Relevance Measures Using Geographic Scopes and Types.- Using Geographic Signatures as Query and Document Scopes in Geographic IR.- Cheshire at GeoCLEF 2007: Retesting Text Retrieval Baselines.- On the Relative Importance of Toponyms in GeoCLEF.- Filtering for Improving the Geographic Information Search.- TALP at GeoCLEF 2007: Results of a Geographical Knowledge Filtering Approach with Terrier.- TALP at GeoQuery 2007: Linguistic and Geographical Analysis for Query Parsing.- Applying Geo-feedback to Geographic Information Retrieval.- Exploring LDA-Based Document Model for Geographic Information Retrieval.- Mono-and Crosslingual Retrieval Experiments with Spatial Restrictions at GeoCLEF 2007.- GIR Experiments with Forostar.- VIII: CLEF in Other Evaluations.- Morpho Challenge Evaluation Using a Linguistic Gold Standard.- Simple Morpheme Labelling in Unsupervised Morpheme Analysis.- Unsupervised and Knowledge-Free Morpheme Segmentation and Analysis.- Unsupervised Acquiring of Morphological Paradigms from Tokenized Text.- ParaMor: Finding Paradigms across Morphology.- SemEval-2007 Task 01: Evaluating WSD on Cross-Language Information Retrieval.

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