Evaluating Systems for Multilingual and Multimodal Information Access: 9th Workshop of the Cross-Language Evaluation Forum, CLEF 2008, Aarhus, Denmark, September 17-19, 2008, Revised Selected Papers

Front Matter....Pages -
What Happened in CLEF 2008....Pages 1-14
CLEF 2008: Ad Hoc Track Overview....Pages 15-37
Logistic Regression for Metadata: Cheshire Takes on Adhoc-TEL....Pages 38-41
Query Expansion via Library Classification System....Pages 42-49
Experiments on a Multinomial Language Model versus Lucene’s Off-the-Shelf Ranking Scheme and Rocchio Query Expansion (TEL@CLEF Monolingual Task)....Pages 50-57
WikiTranslate: Query Translation for Cross-Lingual Information Retrieval Using Only Wikipedia....Pages 58-65
UFRGS@CLEF2008: Using Association Rules for Cross-Language Information Retrieval....Pages 66-74
CLEF 2008 Ad-Hoc Track: Comparing and Combining Different IR Approaches....Pages 75-82
Multi-language Models and Meta-dictionary Adaptation for Accessing Multilingual Digital Libraries....Pages 83-88
Improving Persian Information Retrieval Systems Using Stemming and Part of Speech Tagging....Pages 89-96
Fusion of Retrieval Models at CLEF 2008 Ad Hoc Persian Track....Pages 97-104
Cross Language Experiments at Persian@CLEF 2008....Pages 105-112
Evaluating Word Sense Disambiguation Tools for Information Retrieval Task....Pages 113-117
IXA at CLEF 2008 Robust-WSD Task: Using Word Sense Disambiguation for (Cross Lingual) Information Retrieval....Pages 118-125
SENSE: SEmantic N-levels Search Engine at CLEF2008 Ad Hoc Robust-WSD Track....Pages 126-133
IR-n in the CLEF Robust WSD Task 2008....Pages 134-137
Query Clauses and Term Independence....Pages 138-145
Analysis of Word Sense Disambiguation-Based Information Retrieval....Pages 146-154
Crosslanguage Retrieval Based on Wikipedia Statistics....Pages 155-162
Sampling Precision to Depth 10000 at CLEF 2008....Pages 163-169
JHU Ad Hoc Experiments at CLEF 2008....Pages 170-177
UniNE at CLEF 2008: TEL, and Persian IR....Pages 178-185
The Domain-Specific Track at CLEF 2008....Pages 186-198
UniNE at Domain-Specific IR - CLEF 2008....Pages 199-202
Back to Basics – Again – for Domain-Specific Retrieval....Pages 203-206
Concept Models for Domain-Specific Search....Pages 207-214
The Xtrieval Framework at CLEF 2008: Domain-Specific Track....Pages 215-218
Using Wikipedia and Wiktionary in Domain-Specific Information Retrieval....Pages 219-226
Overview of iCLEF 2008: Search Log Analysis for Multilingual Image Retrieval....Pages 227-235
Log Analysis of Multilingual Image Searches in Flickr....Pages 236-242
Cross-Lingual Image Retrieval Interactions Based on a Game Competition....Pages 243-250
A Study of Users’ Image Seeking Behaviour in FlickLing....Pages 251-259
SICS at iCLEF 2008: User Confidence and Satisfaction Tentatively Inferred from iCLEF Logs....Pages 260-261
Overview of the Clef 2008 Multilingual Question Answering Track....Pages 262-295
Overview of the Answer Validation Exercise 2008....Pages 296-313
Overview of QAST 2008....Pages 314-324
Assessing the Impact of Thesaurus-Based Expansion Techniques in QA-Centric IR....Pages 325-332
Using AliQAn in Monolingual QA@CLEF 2008....Pages 333-336
Priberam’s Question Answering System in QA@CLEF 2008....Pages 337-344
IdSay: Question Answering for Portuguese....Pages 345-352
Dublin City University at QA@CLEF 2008....Pages 353-360
Using Answer Retrieval Patterns to Answer Portuguese Questions....Pages 361-368
Ihardetsi: A Basque Question Answering System at QA@CLEF 2008....Pages 369-376
Question Interpretation in QA@L 2 F....Pages 377-384
UAIC Participation at QA@CLEF2008....Pages 385-392
RACAI’s QA System at the Romanian–Romanian QA@CLEF2008 Main Task....Pages 393-400
Combining Logic and Machine Learning for Answering Questions....Pages 401-408
The MIRACLE Team at the CLEF 2008 Multilingual Question Answering Track....Pages 409-420
Efficient Question Answering with Question Decomposition and Multiple Answer Streams....Pages 421-428
DFKI-LT at QA@CLEF 2008....Pages 429-437
Integrating Logic Forms and Anaphora Resolution in the AliQAn System....Pages 438-441
Some Experiments in Question Answering with a Disambiguated Document Collection....Pages 442-447
Answer Validation on English and Romanian Languages....Pages 448-451
The Answer Validation System ProdicosAV Dedicated to French....Pages 452-459
Studying the Influence of Semantic Constraints in AVE....Pages 460-467
RAVE: A Fast Logic-Based Answer Validator....Pages 468-471
Information Synthesis for Answer Validation....Pages 472-475
Analyzing the Use of Non-overlap Features for Supervised Answer Validation....Pages 476-479
The LIMSI Multilingual, Multitask QAst System....Pages 480-487
IBQAst: A Question Answering System for Text Transcriptions....Pages 488-491
Robust Question Answering for Speech Transcripts: UPC Experience in QAst 2008....Pages 492-499
Overview of the ImageCLEFphoto 2008 Photographic Retrieval Task....Pages 500-511
Overview of the ImageCLEFmed 2008 Medical Image Retrieval Task....Pages 512-522
Medical Image Annotation in ImageCLEF 2008....Pages 523-530
The Visual Concept Detection Task in ImageCLEF 2008....Pages 531-538
Overview of the WikipediaMM Task at ImageCLEF 2008....Pages 539-550
Meiji University at ImageCLEF2008 Photo Retrieval Task: Evaluation of Image Retrieval Methods Integrating Different Media....Pages 551-559
Building a Diversity Featured Search System by Fusing Existing Tools....Pages 560-567
Some Results Using Different Approaches to Merge Visual and Text-Based Features in CLEF’08 Photo Collection....Pages 568-571
MIRACLE-GSI at ImageCLEFphoto 2008: Different Strategies for Automatic Topic Expansion....Pages 572-576
Using Visual Concepts and Fast Visual Diversity to Improve Image Retrieval....Pages 577-584
A Comparative Study of Diversity Methods for Hybrid Text and Image Retrieval Approaches....Pages 585-592
University of Jaén at ImagePhoto 2008: Filtering the Results with the Cluster Term....Pages 593-596
Combining TEXT-MESS Systems at ImageCLEF 2008....Pages 597-604
Image Retrieval by Inter-media Fusion and Pseudo-relevance Feedback....Pages 605-611
Increasing Precision and Diversity in Photo Retrieval by Result Fusion....Pages 612-619
Diversity in Image Retrieval: DCU at ImageCLEFPhoto 2008....Pages 620-627
Visual Affinity Propagation Improves Sub-topics Diversity without Loss of Precision in Web Photo Retrieval....Pages 628-631
Exploiting Term Co-occurrence for Enhancing Automated Image Annotation....Pages 632-639
Enhancing Visual Concept Detection by a Novel Matrix Modular Scheme on SVM....Pages 640-643
SZTAKI @ ImageCLEF 2008: Visual Feature Analysis in Segmented Images....Pages 644-651
THESEUS Meets ImageCLEF: Combining Evaluation Strategies for a New Visual Concept Detection Task 2009....Pages 652-660
Query Types and Visual Concept-Based Post-retrieval Clustering....Pages 661-668
Annotation-Based Expansion and Late Fusion of Mixed Methods for Multimedia Image Retrieval....Pages 669-676
Evaluation of Diversity-Focused Strategies for Multimedia Retrieval....Pages 677-684
Clustering for Photo Retrieval at Image CLEF 2008....Pages 685-690
Methods for Combining Content-Based and Textual-Based Approaches in Medical Image Retrieval....Pages 691-695
An SVM Confidence-Based Approach to Medical Image Annotation....Pages 696-703
LIG at ImageCLEF 2008....Pages 704-711
The MedGIFT Group at ImageCLEF 2008....Pages 712-718
MIRACLE at ImageCLEFmed 2008: Semantic vs. Statistical Strategies for Topic Expansion....Pages 719-723
Experiments in Calibration and Validation for Medical Content-Based Images Retrieval....Pages 724-727
MIRACLE at ImageCLEFannot 2008: Nearest Neighbour Classification of Image Feature Vectors for Medical Image Annotation....Pages 728-731
Query Expansion on Medical Image Retrieval: MeSH vs. UMLS....Pages 732-735
Query and Document Expansion with Medical Subject Headings Terms at Medical Imageclef 2008....Pages 736-743
Multimodal Medical Image Retrieval OHSU at ImageCLEF 2008....Pages 744-751
Baseline Results for the ImageCLEF 2008 Medical Automatic Annotation Task in Comparison over the Years....Pages 752-755
Evaluating the Impact of Image Names in Context-Based Image Retrieval....Pages 756-762
Large-Scale Cross-Media Retrieval of WikipediaMM Images with Textual and Visual Query Expansion....Pages 763-770
Conceptual Image Retrieval over a Large Scale Database....Pages 771-778
UJM at ImageCLEFwiki 2008....Pages 779-786
Overview of WebCLEF 2008....Pages 787-793
On the Evaluation of Snippet Selection for WebCLEF....Pages 794-797
UNED at WebCLEF 2008: Applying High Restrictive Summarization, Low Restrictive Information Retrieval and Multilingual Techniques....Pages 798-801
Retrieval of Snippets of Web Pages Converted to Plain Text. More Questions Than Answers....Pages 802-807
GeoCLEF 2008: The CLEF 2008 Cross-Language Geographic Information Retrieval Track Overview....Pages 808-821
GIR with Language Modeling and DFR Using Terrier....Pages 822-829
Cheshire at GeoCLEF 2008: Text and Fusion Approaches for GIR....Pages 830-837
Geographic and Textual Data Fusion in Forostar....Pages 838-842
Query Expansion for Effective Geographic Information Retrieval....Pages 843-850
Integrating Methods from IR and QA for Geographic Information Retrieval....Pages 851-854
Using Query Reformulation and Keywords in the Geographic Information Retrieval Task....Pages 855-862
Using GeoWordNet for Geographical Information Retrieval....Pages 863-866
GeoTextMESS: Result Fusion with Fuzzy Borda Ranking in Geographical Information Retrieval....Pages 867-874
A Ranking Approach Based on Example Texts for Geographic Information Retrieval....Pages 875-879
Ontology-Based Query Construction for GeoCLEF....Pages 880-884
Experiments with Geographic Evidence Extracted from Documents....Pages 885-893
GikiP at GeoCLEF 2008: Joining GIR and QA Forces for Querying Wikipedia....Pages 894-905
Overview of VideoCLEF 2008: Automatic Generation of Topic-Based Feeds for Dual Language Audio-Visual Content....Pages 906-917
MIRACLE at VideoCLEF 2008: Topic Identification and Keyframe Extraction in Dual Language Videos....Pages 918-922
DCU at VideoClef 2008....Pages 923-926
Using an Information Retrieval System for Video Classification....Pages 927-930
VideoCLEF 2008: ASR Classification with Wikipedia Categories....Pages 931-934
Metadata and Multilinguality in Video Classification....Pages 935-938
Overview of CLEF 2008 INFILE Pilot Track....Pages 939-946
Online Document Filtering Using Adaptive k-NN....Pages 947-950
Overview of Morpho Challenge 2008....Pages 951-966
ParaMor and Morpho Challenge 2008....Pages 967-974
Allomorfessor: Towards Unsupervised Morpheme Analysis....Pages 975-982
Using Unsupervised Paradigm Acquisition for Prefixes....Pages 983-990
Morpho Challenge Evaluation by Information Retrieval Experiments....Pages 991-998
Back Matter....Pages -