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Advances in Information Retrieval Theory, Second International Conference on the Theory of Information Retrieval, ICTIR 2009, Cambridge, UK, September 10-12, 2009, Proceedings

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Is There Something Quantum-Like about the Human Mental Lexicon?
Peter Bruza

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Probably Approximately Correct Search
Ingemar J. Cox | Ruoxun Fu | Lars Kai Hansen

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PageRank: Splitting Homogeneous Singular Linear Systems of Index One
Douglas Vincent de Jager | Jeremy T. Bradley

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Training Data Cleaning for Text Classification
Andrea Esuli | Fabrizio Sebastiani

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Semi-parametric and Non-parametric Term Weighting for Information Retrieval
Donald Metzler | Hugo Zaragoza

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Bridging Language Modeling and Divergence from Randomness Models: A Log-Logistic Model for IR
Stéphane Clinchant | Éric Gaussier

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Ordinal Regression Based Model for Personalized Information Retrieval
Mohamed Farah

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Navigating in the Dark: Modeling Uncertainty in Ad Hoc Retrieval Using Multiple Relevance Models
Natali Soskin | Oren Kurland | Carmel Domshlak

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A Belief Model of Query Difficulty That Uses Subjective Logic
Christina Lioma | Roi Blanco | Raquel Mochales Palau | Marie-Francine Moens

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"A term is known by the company it keeps": On Selecting a Good Expansion Set in Pseudo-Relevance Feedback
Raghavendra Udupa | Abhijit Bhole | Pushpak Bhattacharyya

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An Effective Approach to Verbose Queries Using a Limited Dependencies Language Model
Eduard Hoenkamp | Peter Bruza | Dawei Song | Qiang Huang

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Time-Sensitive Language Modelling for Online Term Recurrence Prediction
Dell Zhang | Jinsong Lu | Robert Mao | Jian-Yun Nie

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Score Distributions in Information Retrieval
Avi Arampatzis | Stephen Robertson | Jaap Kamps

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Modeling the Score Distributions of Relevant and Non-relevant Documents
Evangelos Kanoulas | Virgiliu Pavlu | Keshi Dai | Javed A. Aslam

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Modeling Expected Utility of Multi-session Information Distillation
Yiming Yang | Abhimanyu Lad

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Specificity Aboutness in XML Retrieval
Tobias Blanke | Mounia Lalmas

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An Effectiveness Measure for Ambiguous and Underspecified Queries
Charles L. A. Clarke | Maheedhar Kolla | Olga Vechtomova

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An Analysis of NP-Completeness in Novelty and Diversity Ranking
Ben Carterette

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From "Identical" to "Similar": Fusing Retrieved Lists Based on Inter-document Similarities
Anna Khudyak Kozorovitzky | Oren Kurland

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A Quantum-Based Model for Interactive Information Retrieval
Benjamin Piwowarski | Mounia Lalmas

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The Quantum Probability Ranking Principle for Information Retrieval
Guido Zuccon | Leif Azzopardi | Keith van Rijsbergen

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Written Texts as Statistical Mechanical Problem
Kostadin Koroutchev | Elka Korutcheva | Jian Shen

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What Happened to Content-Based Information Filtering?
Nikolaos Nanas | Anne N. De Roeck | Manolis Vavalis

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Prior Information and the Determination of Event Spaces in Probabilistic Information Retrieval Models
Corrado Boscarino | Arjen P. de Vries

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Robust Word Similarity Estimation Using Perturbation Kernels
Kevyn Collins-Thompson

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Possibilistic Similarity Estimation and Visualization
Anas Dahabiah | John Puentes | Basel Solaiman

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A New Measure of the Cluster Hypothesis
Mark D. Smucker | James Allan

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Explaining User Performance in Information Retrieval: Challenges to IR Evaluation
Kalervo Järvelin

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A Four-Factor User Interaction Model for Content-Based Image Retrieval
Haiming Liu | Victoria S. Uren | Dawei Song | Stefan M. Rüger

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Predicting Query Performance by Query-Drift Estimation
Anna Shtok | Oren Kurland | David Carmel

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What's in a Link? From Document Importance to Topical Relevance
Marijn Koolen | Jaap Kamps

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Avoiding Bias in Text Clustering Using Constrained K-means and May-Not-Links
M. Eduardo Ares | Javier Parapar | Alvaro Barreiro

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Optimizing WebPage Interest
Willem Elbers | Theo P. van der Weide

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The "Beautiful" in Information
Gerald Benoît

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IR Evaluation without a Common Set of Topics
Matteo Cattelan | Stefano Mizzaro

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An Ad Hoc Information Retrieval Perspective on PLSI through Language Model Identification
Jean-Cédric Chappelier | Emmanuel Eckard

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Less Is More: Maximal Marginal Relevance as a Summarisation Feature
Jan Frederik Forst | Anastasios Tombros | Thomas Rölleke

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On the Notion of "An Information Need"
Eduard Hoenkamp

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A Logical Inference Approach to Query Expansion with Social Tags
Christina Lioma | Roi Blanco | Marie-Francine Moens

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Evaluating Mobile Proactive Context-Aware Retrieval: An Incremental Benchmark
Davide Menegon | Stefano Mizzaro | Elena Nazzi | Luca Vassena

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Predicting the Usefulness of Collection Enrichment for Enterprise Search
Jie Peng | Ben He | Iadh Ounis

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Ranking List Dispersion as a Query Performance Predictor
Joaquín Pérez-Iglesias | Lourdes Araujo

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Semi-subsumed Events: A Probabilistic Semantics of the BM25 Term Frequency Quantification
Hengzhi Wu | Thomas Roelleke

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Batch-Mode Computational Advertising Based on Modern Portfolio Theory
Dell Zhang | Jinsong Lu