Advances in Information Retrieval: 34th European Conference on IR Research, ECIR 2012, Barcelona, Spain, April 1-5, 2012, Proceedings (Lecture Notes in Computer Science)

Annotation This book constitutes the proceedings of the 34th European Conference on IR Research, ECIR 2012, held in Barcelona, Spain, in April 2012. The 37 full papers, 28 poster papers and 7 demonstrations presented in this volume were carefully reviewed and selected from 167 submissions. The contributions are organized in sections named: query representation; blogs and online-community search; semi-structured retrieval; evaluation; applications; retrieval models; image and video retrieval; text and content classification, categorisation, clustering; systems efficiency; industry track; and posters Front Matter....Pages - Explaining Query Modifications....Pages 1-12 Modeling Transactional Queries via Templates....Pages 13-24 Exploring Query Patterns in Email Search....Pages 25-36 Interactive Search Support for Difficult Web Queries....Pages 37-49 Predicting the Future Impact of News Events....Pages 50-62 Detection of News Feeds Items Appropriate for Children....Pages 63-72 Comparing Tweets and Tags for URLs....Pages 73-84 Geo-Location Estimation of Flickr Images: Social Web Based Enrichment....Pages 85-96 A Field Relevance Model for Structured Document Retrieval....Pages 97-108 Relation Based Term Weighting Regularization....Pages 109-120 A New Approach to Answerer Recommendation in Community Question Answering Services....Pages 121-132 On the Modeling of Entities for Ad-Hoc Entity Search in the Web of Data....Pages 133-145 Result Disambiguation in Web People Search....Pages 146-157 On Smoothing Average Precision....Pages 158-169 New Metrics for Meaningful Evaluation of Informally Structured Speech Retrieval....Pages 170-181 On Aggregating Labels from Multiple Crowd Workers to Infer Relevance of Documents....Pages 182-194 How Random Walks Can Help Tourism....Pages 195-206 Retrieving Candidate Plagiarised Documents Using Query Expansion....Pages 207-218 Reliability Prediction of Webpages in the Medical Domain....Pages 219-231 Automatic Foldering of Email Messages:A Combination Approach....Pages 232-243 A Log-Logistic Model-Based Interpretation of TF Normalization of BM25....Pages 244-255 Score Transformation in Linear Combination for Multi-criteria Relevance Ranking....Pages 256-267 Axiomatic Analysis of Translation Language Model for Information Retrieval....Pages 268-280 An Information-Based Cross-Language Information Retrieval Model....Pages 281-292 Extended Expectation Maximization for Inferring Score Distributions....Pages 293-304 Top-k Retrieval Using Facility Location Analysis....Pages 305-316 An Interactive Paper and Digital Pen Interface for Query-by-Sketch Image Retrieval....Pages 317-328 Image Abstraction in Crossmedia Retrieval for Text Illustration....Pages 329-339 A Latent Variable Ranking Model for Content-Based Retrieval....Pages 340-351 Language Modelling of Constraints for Text Clustering....Pages 352-363 A Framework for Unsupervised Spam Detection in Social Networking Sites....Pages 364-375 Classification of Short Texts by Deploying Topical Annotations....Pages 376-387 Cluster Labeling for Multilingual Scatter/Gather Using Comparable Corpora....Pages 388-400 Adaptive Time-to-Live Strategies for Query Result Caching in Web Search Engines....Pages 401-412 Intra-query Concurrent Pipelined Processing for Distributed Full-Text Retrieval....Pages 413-425 Usefulness of Sentiment Analysis....Pages 426-435 Modeling Static Caching in Web Search Engines....Pages 436-446 Integrating Interactive Visualizations in the Search Process of Digital Libraries and IR Systems....Pages 447-450 On Theoretically Valid Score Distributions in Information Retrieval....Pages 451-454 Adaptive Temporal Query Modeling....Pages 455-458 The Design of a Visual History Tool to Help Users Refind Information within a Website....Pages 459-462 Analyzing the Polarity of Opinionated Queries....Pages 463-467 Semi-automatic Document Classification: Exploiting Document Difficulty....Pages 468-471 Investigating Summarization Techniques for Geo-Tagged Image Indexing....Pages 472-475 Handling OOV Words in Indian-language – English CLIR....Pages 476-479 Using a Medical Thesaurus to Predict Query Difficulty....Pages 480-484 Studying a Personality Coreference Network in a News Stories Photo Collection....Pages 485-488 Phrase Pair Classification for Identifying Subtopics....Pages 489-493 Full and Mini-batch Clustering of News Articles with Star-EM....Pages 494-498 Assessing and Predicting Vertical Intent for Web Queries....Pages 499-502 Predicting IMDB Movie Ratings Using Social Media....Pages 503-507 Squeezing the Ensemble Pruning: Faster and More Accurate Categorization for News Portals....Pages 508-511 A General Framework for People Retrieval in Social Media with Multiple Roles....Pages 512-516 Analysis of Query Reformulations in a Search Engine of a Local Web Site....Pages 517-521 Temporal Pseudo-relevance Feedback in Microblog Retrieval....Pages 522-526 Learning Adaptive Domain Models from Click Data to Bootstrap Interactive Web Search....Pages 527-530 A Little Interaction Can Go a Long Way: Enriching the Query Formulation Process....Pages 531-534 Learning to Rank from Relevance Feedback for e-Discovery....Pages 535-539 When Simple is (more than) Good Enough: Effective Semantic Search with (almost) no Semantics....Pages 540-543 Evaluating Personal Information Retrieval....Pages 544-547 Applying Power Graph Analysis to Weighted Graphs....Pages 548-551 An Investigation of Term Weighting Approaches for Microblog Retrieval....Pages 552-555 On the Size of Full Element-Indexes for XML Keyword Search....Pages 556-560 Combining Probabilistic Language Models for Aspect-Based Sentiment Retrieval....Pages 561-564 In Praise of Laziness: A Lazy Strategy for Web Information Extraction....Pages 565-568 LiveTweet: Monitoring and Predicting Interesting Microblog Posts....Pages 569-570 A User Interface for Query-by-Sketch Based Image Retrieval with Color Sketches....Pages 571-572 Crisees : Real-Time Monitoring of Social Media Streams to Support Crisis Management....Pages 573-575 A Mailbox Search Engine Using Query Multi-modal Expansion and Community-Based Smoothing....Pages 576-577 EmSe: Supporting Children’s Information Needs within a Hospital Environment....Pages 578-580 Retro: Time-Based Exploration of Product Reviews....Pages 581-582 Querium: A Session-Based Collaborative Search System....Pages 583-584 Back Matter....Pages - The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use.