Advances in Information Retrieval: 33rd European Conference on IR Research, ECIR 2011, Dublin, Ireland, April 18-21, 2011. Proceedings

Front Matter....Pages -
IR Research: Systems, Interaction, Evaluation and Theories....Pages 1-3
Ad Retrieval Systems in vitro and in vivo : Knowledge-Based Approaches to Computational Advertising....Pages 4-5
The Value of User Feedback....Pages 6-6
Text Classification for a Large-Scale Taxonomy Using Dynamically Mixed Local and Global Models for a Node....Pages 7-18
User-Related Tag Expansion for Web Document Clustering....Pages 19-31
A Comparative Experimental Assessment of a Threshold Selection Algorithm in Hierarchical Text Categorization....Pages 32-42
Improving Tag-Based Recommendation by Topic Diversification....Pages 43-54
A Joint Model of Feature Mining and Sentiment Analysis for Product Review Rating....Pages 55-66
Modeling Answerer Behavior in Collaborative Question Answering Systems....Pages 67-79
Clash of the Typings....Pages 80-91
Are Semantically Related Links More Effective for Retrieval?....Pages 92-103
Caching for Realtime Search....Pages 104-116
Enhancing Deniability against Query-Logs....Pages 117-128
On the Contributions of Topics to System Evaluation....Pages 129-140
A Methodology for Evaluating Aggregated Search Results....Pages 141-152
Design and Implementation of Relevance Assessments Using Crowdsourcing....Pages 153-164
In Search of Quality in Crowdsourcing for Search Engine Evaluation....Pages 165-176
Summarizing a Document Stream....Pages 177-188
A Link Prediction Approach to Recommendations in Large-Scale User-Generated Content Systems....Pages 189-200
Topic Classification in Social Media Using Metadata from Hyperlinked Objects....Pages 201-206
Peddling or Creating? Investigating the Role of Twitter in News Reporting....Pages 207-213
Latent Sentiment Model for Weakly-Supervised Cross-Lingual Sentiment Classification....Pages 214-225
Fractional Similarity: Cross-Lingual Feature Selection for Search....Pages 226-237
Is a Query Worth Translating: Ask the Users!....Pages 238-250
Balancing Exploration and Exploitation in Learning to Rank Online....Pages 251-263
ReFER: Effective Relevance Feedback for Entity Ranking....Pages 264-276
The Limits of Retrieval Effectiveness....Pages 277-282
Learning Conditional Random Fields from Unaligned Data for Natural Language Understanding....Pages 283-288
Subspace Tracking for Latent Semantic Analysis....Pages 289-300
Text Retrieval Methods for Item Ranking in Collaborative Filtering....Pages 301-306
Classifying with Co-stems....Pages 307-313
Interactive Trademark Image Retrieval by Fusing Semantic and Visual Content....Pages 314-325
Dynamic Two-Stage Image Retrieval from Large Multimodal Databases....Pages 326-337
Comparing Twitter and Traditional Media Using Topic Models....Pages 338-349
Exploiting Thread Structures to Improve Smoothing of Language Models for Forum Post Retrieval....Pages 350-361
Incorporating Query Expansion and Quality Indicators in Searching Microblog Posts....Pages 362-367
Discovering Fine-Grained Sentiment with Latent Variable Structured Prediction Models....Pages 368-374
Combining Global and Local Semantic Contexts for Improving Biomedical Information Retrieval....Pages 375-386
Smoothing Click Counts for Aggregated Vertical Search....Pages 387-398
Automatic People Tagging for Expertise Profiling in the Enterprise....Pages 399-410
Text Classification: A Sequential Reading Approach....Pages 411-423
Domain Adaptation for Text Categorization by Feature Labeling....Pages 424-435
TEMPER: A Temporal Relevance Feedback Method....Pages 436-447
Terms of a Feather: Content-Based News Recommendation and Discovery Using Twitter....Pages 448-459
Topical and Structural Linkage in Wikipedia....Pages 460-465
An Analysis of Time-Instability in Web Search Results....Pages 466-478
Rules of Thumb for Information Acquisition from Large and Redundant Data....Pages 479-490
Bringing Why-QA to Web Search....Pages 491-496
The Power of Peers....Pages 497-502
Introducing the User-over-Ranking Hypothesis....Pages 503-509
Second Chance: A Hybrid Approach for Dynamic Result Caching in Search Engines....Pages 510-516
Learning Models for Ranking Aggregates....Pages 517-529
Efficient Compressed Inverted Index Skipping for Disjunctive Text-Queries....Pages 530-542
Within-Document Term-Based Index Pruning with Statistical Hypothesis Testing....Pages 543-554
SkipBlock: Self-indexing for Block-Based Inverted List....Pages 555-561
Weight-Based Boosting Model for Cross-Domain Relevance Ranking Adaptation....Pages 562-567
What Makes Re-finding Information Difficult? A Study of Email Re-finding....Pages 568-579
A User-Oriented Model for Expert Finding....Pages 580-592
Simulating Simple and Fallible Relevance Feedback....Pages 593-604
AutoEval: An Evaluation Methodology for Evaluating Query Suggestions Using Query Logs....Pages 605-610
To Seek, Perchance to Fail: Expressions of User Needs in Internet Video Search....Pages 611-616
Passage Reranking for Question Answering Using Syntactic Structures and Answer Types....Pages 617-628
An Iterative Approach to Text Segmentation....Pages 629-640
Improving Query Focused Summarization Using Look-Ahead Strategy....Pages 641-652
A Generalized Method for Word Sense Disambiguation Based on Wikipedia....Pages 653-664
Representing Document Lengths with Identifiers....Pages 665-669
Free-Text Search versus Complex Web Forms....Pages 670-674
Multilingual Log Analysis: LogCLEF....Pages 675-678
A Large-Scale System Evaluation on Component-Level....Pages 679-682
Should MT Systems Be Used as Black Boxes in CLIR?....Pages 683-686
Video Retrieval Based on Words-of-Interest Selection....Pages 687-690
Classic Children’s Literature - Difficult to Read?....Pages 691-694
Applying Machine Learning Diversity Metrics to Data Fusion in Information Retrieval....Pages 695-698
Reranking Collaborative Filtering with Multiple Self-contained Modalities....Pages 699-703
How Far Are We in Trust-Aware Recommendation?....Pages 704-707
Re-ranking for Multimedia Indexing and Retrieval....Pages 708-711
Combining Query Translation Techniques to Improve Cross-Language Information Retrieval....Pages 712-715
Back to the Roots: Mean-Variance Analysis of Relevance Estimations....Pages 716-720
A Novel Re-ranking Approach Inspired by Quantum Measurement....Pages 721-724
Simple vs. Sophisticated Approaches for Patent Prior-Art Search....Pages 725-728
Towards Quantum-Based DB+IR Processing Based on the Principle of Polyrepresentation....Pages 729-732
ATTention: Understanding Authors and Topics in Context of Temporal Evolution....Pages 733-737
Role of Emotional Features in Collaborative Recommendation....Pages 738-742
The Importance of the Depth for Text-Image Selection Strategy in Learning-To-Rank....Pages 743-746
Personal Blog Retrieval Using Opinion Features....Pages 747-750
Processing Queries in Session in a Quantum-Inspired IR Framework....Pages 751-754
Towards Predicting Relevance Using a Quantum-Like Framework....Pages 755-758
Fusion vs. Two-Stage for Multimodal Retrieval....Pages 759-762
Combination of Feature Selection Methods for Text Categorisation....Pages 763-766
Time-Surfer: Time-Based Graphical Access to Document Content....Pages 767-771
ARES: A Retrieval Engine Based on Sentiments....Pages 772-775
Web Search Query Assistance Functionality for Young Audiences....Pages 776-779
Conversation Retrieval from Twitter....Pages 780-783
Finding Useful Users on Twitter: Twittomender the Followee Recommender....Pages 784-787
Visual Exploration of Health Information for Children....Pages 788-792
Back Matter....Pages -