Advances in Information Retrieval Theory

Invited Talk.- Is There Something Quantum-Like about the Human Mental Lexicon?.- Regular Papers.- Probably Approximately Correct Search.- PageRank: Splitting Homogeneous Singular Linear Systems of Index One.- Training Data Cleaning for Text Classification.- Semi-parametric and Non-parametric Term Weighting for Information Retrieval.- Bridging Language Modeling and Divergence from Randomness Models: A Log-Logistic Model for IR.- Ordinal Regression Based Model for Personalized Information Retrieval.- Navigating in the Dark: Modeling Uncertainty in Ad Hoc Retrieval Using Multiple Relevance Models.- A Belief Model of Query Difficulty That Uses Subjective Logic.- "A term is known by the company it keeps": On Selecting a Good Expansion Set in Pseudo-Relevance Feedback.- An Effective Approach to Verbose Queries Using a Limited Dependencies Language Model.- Time-Sensitive Language Modelling for Online Term Recurrence Prediction.- Score Distributions in Information Retrieval.- Modeling the Score Distributions of Relevant and Non-relevant Documents.- Modeling Expected Utility of Multi-session Information Distillation.- Specificity Aboutness in XML Retrieval.- An Effectiveness Measure for Ambiguous and Underspecified Queries.- An Analysis of NP-Completeness in Novelty and Diversity Ranking.- From "Identical" to "Similar": Fusing Retrieved Lists Based on Inter-document Similarities.- Short Papers.- A Quantum-Based Model for Interactive Information Retrieval.- The Quantum Probability Ranking Principle for Information Retrieval.- Written Texts as Statistical Mechanical Problem.- What Happened to Content-Based Information Filtering?.- Prior Information and the Determination of Event Spaces in Probabilistic Information Retrieval Models.- Robust Word Similarity EstimationUsing Perturbation Kernels.- Possibilistic Similarity Estimation and Visualization.- A New Measure of the Cluster Hypothesis.- Explaining User Performance in Information Retrieval: Challenges to IR Evaluation.- A