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

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Query Evolution
W. Bruce Croft

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Searching User Generated Content: What's Next?
Maarten de Rijke

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Upcoming Industrial Needs for Search
Gregory Grefenstette

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Mean-Variance Analysis: A New Document Ranking Theory in Information Retrieval
Jun Wang

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Risk-Aware Information Retrieval
Jianhan Zhu | Jun Wang | Michael J. Taylor | Ingemar J. Cox

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A Comparative Study of Utilizing Topic Models for Information Retrieval
Xing Yi | James Allan

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Synchronous Collaborative Information Retrieval: Techniques and Evaluation
Colum Foley | Alan F. Smeaton

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Movie Recommender: Semantically Enriched Unified Relevance Model for Rating Prediction in Collaborative Filtering
Yashar Moshfeghi | Deepak Agarwal | Benjamin Piwowarski | Joemon M. Jose

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Revisiting IR Techniques for Collaborative Search Strategies
Hideo Joho | David Hannah | Joemon M. Jose

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Active Sampling for Rank Learning via Optimizing the Area under the ROC Curve
Pinar Donmez | Jaime G. Carbonell

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Regression Rank: Learning to Meet the Opportunity of Descriptive Queries
Matthew Lease | James Allan | W. Bruce Croft

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Active Learning Strategies for Multi-Label Text Classification
Andrea Esuli | Fabrizio Sebastiani

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Joint Ranking for Multilingual Web Search
Wei Gao | Cheng Niu | Ming Zhou | Kam-Fai Wong

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Diversity, Assortment, Dissimilarity, Variety: A Study of Diversity Measures Using Low Level Features for Video Retrieval
Martin Halvey | P. Punitha | David Hannah | Robert Villa | Frank Hopfgartner | Anuj Goyal | Joemon M. Jose

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Bayesian Mixture Hierarchies for Automatic Image Annotation
Vassilios Stathopoulos | Joemon M. Jose

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XML Multimedia Retrieval: From Relevant Textual Information to Relevant Multimedia Fragments
Mouna Torjmen | Karen Pinel-Sauvagnat | Mohand Boughanem

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Effectively Searching Maps in Web Documents
Qingzhao Tan | Prasenjit Mitra | C. Lee Giles

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Enhancing Expert Finding Using Organizational Hierarchies
Maryam Karimzadehgan | Ryen W. White | Matthew Richardson

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A Vector Space Model for Ranking Entities and Its Application to Expert Search
Gianluca Demartini | Julien Gaugaz | Wolfgang Nejdl

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Sentiment-Oriented Contextual Advertising
Teng-Kai Fan | Chia-Hui Chang

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Lexical Graphs for Improved Contextual Ad Recommendation
Symeon Papadopoulos | Fotis Menemenis | Yiannis Kompatsiaris | Ben Bratu

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A Probabilistic Retrieval Model for Semistructured Data
Jin Young Kim | Xiaobing Xue | W. Bruce Croft

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Model Fusion in Conceptual Language Modeling
Loïc Maisonnasse | Éric Gaussier | Jean-Pierre Chevallet

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Graded-Inclusion-Based Information Retrieval Systems
Patrick Bosc | Vincent Claveau | Olivier Pivert | Laurent Ughetto

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Multidimensional Relevance: A New Aggregation Criterion
Célia da Costa Pereira | Mauro Dragoni | Gabriella Pasi

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Using Multiple Query Aspects to Build Test Collections without Human Relevance Judgments
Miles Efron

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If I Had a Million Queries
Ben Carterette | Virgiliu Pavlu | Evangelos Kanoulas | Javed A. Aslam | James Allan

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The Combination and Evaluation of Query Performance Prediction Methods
Claudia Hauff | Leif Azzopardi | Djoerd Hiemstra

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Investigating Learning Approaches for Blog Post Opinion Retrieval
Shima Gerani | Mark James Carman | Fabio Crestani

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Integrating Proximity to Subjective Sentences for Blog Opinion Retrieval
Rodrygo L. T. Santos | Ben He | Craig Macdonald | Iadh Ounis

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Adapting Naive Bayes to Domain Adaptation for Sentiment Analysis
Songbo Tan | Xueqi Cheng | Yuefen Wang | Hongbo Xu

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PathRank: Web Page Retrieval with Navigation Path
Jianqiang Li | Yu Zhao

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Query Expansion Using External Evidence
Zhijun Yin | Milad Shokouhi | Nick Craswell

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Selective Application of Query-Independent Features in Web Information Retrieval
Jie Peng | Iadh Ounis

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Measuring the Search Effectiveness of a Breadth-First Crawl
Dennis Fetterly | Nick Craswell | Vishwa Vinay

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Using Contextual Information to Improve Search in Email Archives
Wouter Weerkamp | Krisztian Balog | Maarten de Rijke

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Part of Speech Based Term Weighting for Information Retrieval
Christina Lioma | Roi Blanco

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Word Particles Applied to Information Retrieval
Evandro B. Gouvêa | Bhiksha Raj

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"They Are Out There, If You Know Where to Look": Mining Transliterations of OOV Query Terms for Cross-Language Information Retrieval
Raghavendra Udupa | K. Saravanan | Anton Bakalov | Abhijit Bhole

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E-Mail Classification for Phishing Defense
Wilfried N. Gansterer | David Pölz

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Multi-facet Rating of Product Reviews
Stefano Baccianella | Andrea Esuli | Fabrizio Sebastiani

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Exploiting Surface Features for the Prediction of Podcast Preference
Manos Tsagkias | Martha A. Larson | Maarten de Rijke

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A Topic-Based Measure of Resource Description Quality for Distributed Information Retrieval
Mark Baillie | Mark James Carman | Fabio Crestani

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Simple Adaptations of Data Fusion Algorithms for Source Selection
Georgios Paltoglou | Michail Salampasis | Maria Satratzemi

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Document Compaction for Efficient Query Biased Snippet Generation
Yohannes Tsegay | Simon J. Puglisi | Andrew Turpin | Justin Zobel

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Organizing Suggestions in Autocompletion Interfaces
Alia Amin | Michiel Hildebrand | Jacco van Ossenbruggen | Vanessa Evers | Lynda Hardman

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Building a Graph of Names and Contextual Patterns for Named Entity Classification
César de Pablo-Sánchez | Paloma Martínez

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Combination of Documents Features Based on Simulated Click-through Data
Ali Mohammad Zareh Bidoki | James A. Thom

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Discovering Association Rules on Experiences from Large-Scale Blog Entries
Takeshi Kurashima | Ko Fujimura | Hidenori Okuda

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Extracting Geographic Context from the Web: GeoReferencing in MyMoSe
Álvaro Zubizarreta | Pablo de la Fuente | José Manuel Cantera | Mario Arias | Jorge Cabrero Alonso | Guido García Bernardo | César Llamas | Jesús Vegas

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What Else Is There? Search Diversity Examined
Mark Sanderson | Jiayu Tang | Thomas Arni | Paul D. Clough

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Using Second Order Statistics to Enhance Automated Image Annotation
Ainhoa Llorente | Stefan M. Rüger

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Classifying and Characterizing Query Intent
Azin Ashkan | Charles L. A. Clarke | Eugene Agichtein | Qi Guo

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Design and Evaluation of a University-Wide Expert Search Engine
Ruud Liebregts | Toine Bogers

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A Study of the Impact of Index Updates on Distributed Query Processing for Web Search
Charalampos Sarigiannis | Vassilis Plachouras | Ricardo Baeza-Yates

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Generic and Spatial Approaches to Image Search Results Diversification
Monica Lestari Paramita | Jiayu Tang | Mark Sanderson

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Studying Query Expansion Effectiveness
Ben He | Iadh Ounis

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Correlation of Term Count and Document Frequency for Google N-Grams
Martin Klein | Michael L. Nelson

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A Cost-Aware Strategy for Query Result Caching in Web Search Engines
Ismail Sengör Altingövde | Rifat Ozcan | Özgür Ulusoy

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Quality-Oriented Search for Depression Portals
Thanh Tin Tang | David Hawking | Ramesh S. Sankaranarayana | Kathleen Griffiths | Nick Craswell

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Evaluation of Text Clustering Algorithms with N-Gram-Based Document Fingerprints
Javier Parapar | Alvaro Barreiro

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Exploiting Flickr Tags and Groups for Finding Landmark Photos
Rabeeh Abbasi | Sergey Chernov | Wolfgang Nejdl | Raluca Paiu | Steffen Staab

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Refining Keyword Queries for XML Retrieval by Combining Content and Structure
Desislava Petkova | W. Bruce Croft | Yanlei Diao

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Cover Coefficient-Based Multi-document Summarization
Gonenc Ercan | Fazli Can

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A Practitioner's Guide for Static Index Pruning
Ismail Sengör Altingövde | Rifat Ozcan | Özgür Ulusoy

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Revisiting N-Gram Based Models for Retrieval in Degraded Large Collections
Javier Parapar | Ana Freire | Alvaro Barreiro

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A Simple Linear Ranking Algorithm Using Query Dependent Intercept Variables
Nir Ailon

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Measurement Techniques and Caching Effects
Stefan Pohl | Alistair Moffat

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On Automatic Plagiarism Detection Based on n-Grams Comparison
Alberto Barrón-Cedeño | Paolo Rosso

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Exploiting Visual Concepts to Improve Text-Based Image Retrieval
Sabrina Tollari | Marcin Detyniecki | Christophe Marsala | Ali Fakeri-Tabrizi | Massih-Reza Amini | Patrick Gallinari

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Choosing the Best MT Programs for CLIR Purposes - Can MT Metrics Be Helpful?
Kimmo Kettunen

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Entropy-Based Static Index Pruning
Lei Zheng | Ingemar J. Cox

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Representing User Navigation in XML Retrieval with Structural Summaries
Mir Sadek Ali | Mariano P. Consens | Birger Larsen

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ESUM: An Efficient System for Query-Specific Multi-document Summarization
C. Ravindranath Chowdary | P. Sreenivasa Kumar

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Using WordNet's Semantic Relations for Opinion Detection in Blogs
Malik Muhammad Saad Missen | Mohand Boughanem

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Improving Opinion Retrieval Based on Query-Specific Sentiment Lexicon
Seung-Hoon Na | Yeha Lee | Sang-Hyob Nam | Jong-Hyeok Lee

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Automatically Maintained Domain Knowledge: Initial Findings
Deirdre Lungley | Udo Kruschwitz

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A Framework of Evaluation for Question-Answering Systems
Sarra El Ayari | Brigitte Grau

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Combining Content and Context Similarities for Image Retrieval
Xiaojun Wan

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Investigating the Global Semantic Impact of Speech Recognition Error on Spoken Content Collections
Martha A. Larson | Manos Tsagkias | Jiyin He | Maarten de Rijke

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Supervised Semantic Indexing
Bing Bai | Jason Weston | Ronan Collobert | David Grangier

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Split and Merge Based Story Segmentation in News Videos
Anuj Goyal | P. Punitha | Frank Hopfgartner | Joemon M. Jose

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Encoding Ordinal Features into Binary Features for Text Classification
Andrea Esuli | Fabrizio Sebastiani

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Topic and Trend Detection in Text Collections Using Latent Dirichlet Allocation
Levent Bolelli | Seyda Ertekin | C. Lee Giles

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Measuring Similarity of Geographic Regions for Geographic Information Retrieval
Andreas Henrich | Volker Lüdecke

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Towards the Selection of Induced Syntactic Relations
Nicolas Béchet | Mathieu Roche | Jacques Chauché

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DiffPost: Filtering Non-relevant Content Based on Content Difference between Two Consecutive Blog Posts
Sang-Hyob Nam | Seung-Hoon Na | Yeha Lee | Jong-Hyeok Lee

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An Unsupervised Approach to Product Attribute Extraction
Santosh Raju | Prasad Pingali | Vasudeva Varma

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Workshop on Contextual Information Access, Seeking and Retrieval Evaluation
Bich-Liên Doan | Joemon M. Jose | Massimo Melucci | Lynda Tamine-Lechani

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Workshop on Information Retrieval over Social Networks
Stéphane Marchand-Maillet | Arjen P. de Vries | Mor Naaman

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Workshop on Geographic Information on the Internet Workshop (GIIW)
Gregory Grefenstette | Pierre-Alain Moëllic | Adrian Popescu | Florence Sèdes

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Current Developments in Information Retrieval Evaluation
Thomas Mandl

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Information Extraction and Linking in a Retrieval Context
Marie-Francine Moens | Djoerd Hiemstra

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Mining Query Logs
Salvatore Orlando | Fabrizio Silvestri