Advances in Information Retrieval: 31th European Conference on IR Research, ECIR 2009, Toulouse, France, April 6-9, 2009. Proceedings

Front Matter....Pages -
Query Evolution....Pages 1-1
Searching User Generated Content: What’s Next?....Pages 2-2
Upcoming Industrial Needs for Search....Pages 3-3
Mean-Variance Analysis: A New Document Ranking Theory in Information Retrieval....Pages 4-16
Risk-Aware Information Retrieval....Pages 17-28
A Comparative Study of Utilizing Topic Models for Information Retrieval....Pages 29-41
Synchronous Collaborative Information Retrieval: Techniques and Evaluation....Pages 42-53
Movie Recommender: Semantically Enriched Unified Relevance Model for Rating Prediction in Collaborative Filtering....Pages 54-65
Revisiting IR Techniques for Collaborative Search Strategies....Pages 66-77
Active Sampling for Rank Learning via Optimizing the Area under the ROC Curve....Pages 78-89
Regression Rank: Learning to Meet the Opportunity of Descriptive Queries....Pages 90-101
Active Learning Strategies for Multi-Label Text Classification....Pages 102-113
Joint Ranking for Multilingual Web Search....Pages 114-125
Diversity, Assortment, Dissimilarity, Variety: A Study of Diversity Measures Using Low Level Features for Video Retrieval....Pages 126-137
Bayesian Mixture Hierarchies for Automatic Image Annotation....Pages 138-149
XML Multimedia Retrieval: From Relevant Textual Information to Relevant Multimedia Fragments....Pages 150-161
Effectively Searching Maps in Web Documents....Pages 162-176
Enhancing Expert Finding Using Organizational Hierarchies....Pages 177-188
A Vector Space Model for Ranking Entities and Its Application to Expert Search....Pages 189-201
Sentiment-Oriented Contextual Advertising....Pages 202-215
Lexical Graphs for Improved Contextual Ad Recommendation....Pages 216-227
A Probabilistic Retrieval Model for Semistructured Data....Pages 228-239
Model Fusion in Conceptual Language Modeling....Pages 240-251
Graded-Inclusion-Based Information Retrieval Systems....Pages 252-263
Multidimensional Relevance: A New Aggregation Criterion....Pages 264-275
Using Multiple Query Aspects to Build Test Collections without Human Relevance Judgments....Pages 276-287
If I Had a Million Queries....Pages 288-300
The Combination and Evaluation of Query Performance Prediction Methods....Pages 301-312
Investigating Learning Approaches for Blog Post Opinion Retrieval....Pages 313-324
Integrating Proximity to Subjective Sentences for Blog Opinion Retrieval....Pages 325-336
Adapting Naive Bayes to Domain Adaptation for Sentiment Analysis....Pages 337-349
PathRank: Web Page Retrieval with Navigation Path....Pages 350-361
Query Expansion Using External Evidence....Pages 362-374
Selective Application of Query-Independent Features in Web Information Retrieval....Pages 375-387
Measuring the Search Effectiveness of a Breadth-First Crawl....Pages 388-399
Using Contextual Information to Improve Search in Email Archives....Pages 400-411
Part of Speech Based Term Weighting for Information Retrieval....Pages 412-423
Word Particles Applied to Information Retrieval....Pages 424-436
“ They Are Out There, If You Know Where to Look ”: Mining Transliterations of OOV Query Terms for Cross-Language Information Retrieval....Pages 437-448
E-Mail Classification for Phishing Defense....Pages 449-460
Multi-facet Rating of Product Reviews....Pages 461-472
Exploiting Surface Features for the Prediction of Podcast Preference....Pages 473-484
A Topic-Based Measure of Resource Description Quality for Distributed Information Retrieval....Pages 485-496
Simple Adaptations of Data Fusion Algorithms for Source Selection....Pages 497-508
Document Compaction for Efficient Query Biased Snippet Generation....Pages 509-520
Organizing Suggestions in Autocompletion Interfaces....Pages 521-529
Building a Graph of Names and Contextual Patterns for Named Entity Classification....Pages 530-537
Combination of Documents Features Based on Simulated Click-through Data....Pages 538-545
Discovering Association Rules on Experiences from Large-Scale Blog Entries....Pages 546-553
Extracting Geographic Context from the Web: GeoReferencing in MyMoSe....Pages 554-561
What Else Is There? Search Diversity Examined....Pages 562-569
Using Second Order Statistics to Enhance Automated Image Annotation....Pages 570-577
Classifying and Characterizing Query Intent....Pages 578-586
Design and Evaluation of a University-Wide Expert Search Engine....Pages 587-594
A Study of the Impact of Index Updates on Distributed Query Processing for Web Search....Pages 595-602
Generic and Spatial Approaches to Image Search Results Diversification....Pages 603-610
Studying Query Expansion Effectiveness....Pages 611-619
Correlation of Term Count and Document Frequency for Google N-Grams....Pages 620-627
A Cost-Aware Strategy for Query Result Caching in Web Search Engines....Pages 628-636
Quality-Oriented Search for Depression Portals....Pages 637-644
Evaluation of Text Clustering Algorithms with N-Gram-Based Document Fingerprints....Pages 645-653
Exploiting Flickr Tags and Groups for Finding Landmark Photos....Pages 654-661
Refining Keyword Queries for XML Retrieval by Combining Content and Structure....Pages 662-669
Cover Coefficient-Based Multi-document Summarization....Pages 670-674
A Practitioner’s Guide for Static Index Pruning....Pages 675-679
Revisiting N-Gram Based Models for Retrieval in Degraded Large Collections....Pages 680-684
A Simple Linear Ranking Algorithm Using Query Dependent Intercept Variables....Pages 685-690
Measurement Techniques and Caching Effects....Pages 691-695
On Automatic Plagiarism Detection Based on n -Grams Comparison....Pages 696-700
Exploiting Visual Concepts to Improve Text-Based Image Retrieval....Pages 701-705
Choosing the Best MT Programs for CLIR Purposes – Can MT Metrics Be Helpful?....Pages 706-712
Entropy-Based Static Index Pruning....Pages 713-718
Representing User Navigation in XML Retrieval with Structural Summaries....Pages 719-723
ESUM: An Efficient System for Query-Specific Multi-document Summarization....Pages 724-728
Using WordNet’s Semantic Relations for Opinion Detection in Blogs....Pages 729-733
Improving Opinion Retrieval Based on Query-Specific Sentiment Lexicon....Pages 734-738
Automatically Maintained Domain Knowledge: Initial Findings....Pages 739-743
A Framework of Evaluation for Question-Answering Systems....Pages 744-748
Combining Content and Context Similarities for Image Retrieval....Pages 749-754
Investigating the Global Semantic Impact of Speech Recognition Error on Spoken Content Collections....Pages 755-760
Supervised Semantic Indexing....Pages 761-765
Split and Merge Based Story Segmentation in News Videos....Pages 766-770
Encoding Ordinal Features into Binary Features for Text Classification....Pages 771-775
Topic and Trend Detection in Text Collections Using Latent Dirichlet Allocation....Pages 776-780
Measuring Similarity of Geographic Regions for Geographic Information Retrieval....Pages 781-785
Towards the Selection of Induced Syntactic Relations....Pages 786-790
DiffPost: Filtering Non-relevant Content Based on Content Difference between Two Consecutive Blog Posts....Pages 791-795
An Unsupervised Approach to Product Attribute Extraction....Pages 796-800
Workshop on Contextual Information Access, Seeking and Retrieval Evaluation....Pages 801-802
Workshop on Information Retrieval over Social Networks....Pages 803-803
Workshop on Geographic Information on the Internet Workshop (GIIW)....Pages 804-805
Current Developments in Information Retrieval Evaluation....Pages 806-809
Information Extraction and Linking in a Retrieval Context....Pages 810-813
Mining Query Logs....Pages 814-817
Back Matter....Pages -