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Advances in Information Retrieval - 37th European Conference on IR Research, ECIR 2015, Vienna, Austria, March 29 - April 2, 2015. Proceedings

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Towards Query Level Resource Weighting for Diversified Query Expansion
Arbi Bouchoucha | Xiaohua Liu | Jian-Yun Nie

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Exploring Composite Retrieval from the Users' Perspective
Horatiu S. Bota | Ke Zhou | Joemon M. Jose

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Improving Aggregated Search Coherence
Jaime Arguello

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On-topic Cover Stories from News Archives
Christian Schulte | Bilyana Taneva | Gerhard Weikum

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Multi-emotion Detection in User-Generated Reviews
Lars Buitinck | Jesse van Amerongen | Ed Tan | Maarten de Rijke

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Classification of Historical Notary Acts with Noisy Labels
Julia Efremova | Alejandro Montes García | Toon Calders

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ConceptFusion: A Flexible Scene Classification Framework
Mustafa Ilker Sarac | Ahmet Iscen | Eren Golge | Pinar Duygulu

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An Audio-Visual Approach to Music Genre Classification through Affective Color Features
Alexander Schindler | Andreas Rauber

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Multi-modal Correlated Centroid Space for Multi-lingual Cross-Modal Retrieval
Aditya Mogadala | Achim Rettinger

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A Discourse Search Engine Based on Rhetorical Structure Theory
Pascal Kuyten | Danushka Bollegala | Bernd Hollerit | Helmut Prendinger | Kiyoharu Aizawa

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Knowledge-Based Representation for Transductive Multilingual Document Classification
Salvatore Romeo | Dino Ienco | Andrea Tagarelli

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Distributional Correspondence Indexing for Cross-Language Text Categorization
Andrea Esuli | Alejandro Moreo Fernández

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Adaptive Caching of Fresh Web Search Results
Liudmila Ostroumova Prokhorenkova | Yury Ustinovskiy | Egor Samosvat | Damien Lefortier | Pavel Serdyukov

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Approximating Weighted Hamming Distance by Probabilistic Selection for Multiple Hash Tables
Chiang-Yu Tsai | Yin-Hsi Kuo | Winston H. Hsu

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Graph Regularised Hashing
Sean Moran | Victor Lavrenko

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Approximate Nearest-Neighbour Search with Inverted Signature Slice Lists
Timothy Chappell | Shlomo Geva | Guido Zuccon

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A Discriminative Approach to Predicting Assessor Accuracy
Hyun Joon Jung | Matthew Lease

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WHOSE - A Tool for Whole-Session Analysis in IIR
Daniel Hienert | Wilko van Hoek | Alina Weber | Dagmar Kern

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Looking for Books in Social Media: An Analysis of Complex Search Requests
Marijn Koolen | Toine Bogers | Antal van den Bosch | Jaap Kamps

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How Do Gain and Discount Functions Affect the Correlation between DCG and User Satisfaction?
Julián Urbano | Mónica Marrero

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Different Rankers on Different Subcollections
Timothy Jones | Falk Scholer | Andrew Turpin | Stefano Mizzaro | Mark Sanderson

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Retrievability and Retrieval Bias: A Comparison of Inequality Measures
Colin Wilkie | Leif Azzopardi

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Judging Relevance Using Magnitude Estimation
Eddy Maddalena | Stefano Mizzaro | Falk Scholer | Andrew Turpin

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Retrieving Time from Scanned Books
John Foley | James Allan

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A Noise-Filtering Approach for Spatio-temporal Event Detection in Social Media
Yuan Liang | James Caverlee | Cheng Cao

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Timeline Summarization from Relevant Headlines
Giang Binh Tran | Mohammad Alrifai | Eelco Herder

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A Self-training CRF Method for Recognizing Product Model Mentions in Web Forums
Henry S. Vieira | Altigran S. da Silva | Marco Cristo | Edleno Silva de Moura

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Information Extraction Grammars
Mónica Marrero | Julián Urbano

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Target-Based Topic Model for Problem Phrase Extraction
Elena Tutubalina

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On Identifying Phrases Using Collection Statistics
Simon Gog | Alistair Moffat | Matthias Petri

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MIST: Top-k Approximate Sub-string Mining Using Triplet Statistical Significance
Sourav Dutta

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Active Learning Applied to Rating Elicitation for Incentive Purposes
Marden B. Pasinato | Carlos E. Mello | Geraldo Zimbrão

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Entity-Centric Stream Filtering and Ranking: Filtering and Unfilterable Documents
Gebrekirstos G. Gebremeskel | Arjen P. de Vries

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Generating Music Playlists with Hierarchical Clustering and Q-Learning
James King | Vaiva Imbrasaite

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Time-Sensitive Collaborative Filtering through Adaptive Matrix Completion
Julien Gaillard | Jean-Michel Renders

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Toward the New Item Problem: Context-Enhanced Event Recommendation in Event-Based Social Networks
Zhenhua Wang | Ping He | Lidan Shou | Ke Chen | Sai Wu | Gang Chen

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On the Influence of User Characteristics on Music Recommendation Algorithms
Markus Schedl | David Hauger | Katayoun Farrahi | Marko Tkalcic

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A Study of Smoothing Methods for Relevance-Based Language Modelling of Recommender Systems
Daniel Valcarce | Javier Parapar | Alvaro Barreiro

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The Power of Contextual Suggestion
Adriel Dean-Hall | Charles L. A. Clarke

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Exploiting Semantic Annotations for Domain-Specific Entity Search
Tuukka Ruotsalo | Eero Hyvönen

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Reachability Analysis of Graph Modelled Collections
Serwah Sabetghadam | Mihai Lupu | Ralf Bierig | Andreas Rauber

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Main Core Retention on Graph-of-Words for Single-Document Keyword Extraction
François Rousseau | Michalis Vazirgiannis

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Entity Linking for Web Search Queries
Deepak P | Sayan Ranu | Prithu Banerjee | Sameep Mehta

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Beyond Sentiment Analysis: Mining Defects and Improvements from Customer Feedback
Samaneh Moghaddam

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Measuring User Influence, Susceptibility and Cynicalness in Sentiment Diffusion
Roy Ka-Wei Lee | Ee-Peng Lim

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Automated Controversy Detection on the Web
Shiri Dori-Hacohen | James Allan

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Learning Sentiment Based Ranked-Lexicons for Opinion Retrieval
Filipa Peleja | João Magalhães

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Topic-Dependent Sentiment Classification on Twitter
Steven Van Canneyt | Nathan Claeys | Bart Dhoedt

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Learning Higher-Level Features with Convolutional Restricted Boltzmann Machines for Sentiment Analysis
Trung Huynh | Yulan He | Stefan M. Rüger

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Towards Deep Semantic Analysis of Hashtags
Piyush Bansal | Romil Bansal | Vasudeva Varma

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Chalk and Cheese in Twitter: Discriminating Personal and Organization Accounts
Richard Jayadi Oentaryo | Jia-Wei Low | Ee-Peng Lim

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Handling Topic Drift for Topic Tracking in Microblogs
Yue Fei | Yihong Hong | Jianwu Yang

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Detecting Location-Centric Communities Using Social-Spatial Links with Temporal Constraints
Kwan Hui Lim | Jeffrey Chan | Christopher Leckie | Shanika Karunasekera

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Using Subjectivity Analysis to Improve Thread Retrieval in Online Forums
Prakhar Biyani | Sumit Bhatia | Cornelia Caragea | Prasenjit Mitra

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Selecting Training Data for Learning-Based Twitter Search
Dongxing Li | Ben He | Tiejian Luo | Xin Zhang

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Content-Based Similarity of Twitter Users
Stefano Mizzaro | Marco Pavan | Ivan Scagnetto

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A Corpus of Realistic Known-Item Topics with Associated Web Pages in the ClueWeb09
Matthias Hagen | Daniel Wägner | Benno Stein

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Designing States, Actions, and Rewards for Using POMDP in Session Search
Jiyun Luo | Sicong Zhang | Xuchu Dong | Hui Yang

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Retrieving Medical Literature for Clinical Decision Support
Luca Soldaini | Arman Cohan | Andrew Yates | Nazli Goharian | Ophir Frieder

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PatNet: A Lexical Database for the Patent Domain
Wolfgang Tannebaum | Andreas Rauber

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Learning to Rank Aggregated Answers for Crossword Puzzles
Massimo Nicosia | Gianni Barlacchi | Alessandro Moschitti

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Diagnose This If You Can - On the Effectiveness of Search Engines in Finding Medical Self-diagnosis Information
Guido Zuccon | Bevan Koopman | João R. M. Palotti

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Sources of Evidence for Automatic Indexing of Political Texts
Mostafa Dehghani | Hosein Azarbonyad | Maarten Marx | Jaap Kamps

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Automatically Assessing Wikipedia Article Quality by Exploiting Article-Editor Networks
Xinyi Li | Jintao Tang | Ting Wang | Zhunchen Luo | Maarten de Rijke

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Long Time, No Tweets! Time-aware Personalised Hashtag Suggestion
Morgan Harvey | Fabio Crestani

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Temporal Multinomial Mixture for Instance-Oriented Evolutionary Clustering
Young-Min Kim | Julien Velcin | Stéphane Bonnevay | Marian-Andrei Rizoiu

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Temporal Latent Topic User Profiles for Search Personalisation
Thanh Tien Vu | Alistair Willis | Son Ngoc Tran | Dawei Song

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Document Priors Based On Time-Sensitive Social Signals
Ismail Badache | Mohand Boughanem

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Prediction of Venues in Foursquare Using Flipped Topic Models
Wen-Haw Chong | Bing Tian Dai | Ee-Peng Lim

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Geographical Latent Variable Models for Microblog Retrieval
Alexander Kotov | Vineeth Rakesh | Eugene Agichtein | Chandan K. Reddy

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Nonparametric Topic Modeling Using Chinese Restaurant Franchise with Buddy Customers
Shoaib Jameel | Wai Lam | Lidong Bing

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A Hierarchical Tree Model for Update Summarization
Rumeng Li | Hiroyuki Shindo

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Document Boltzmann Machines for Information Retrieval
Qian Yu | Peng Zhang | Yuexian Hou | Dawei Song | Jun Wang

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Effective Healthcare Advertising Using Latent Dirichlet Allocation and Inference Engine
Yen-Chiu Li | Chien Chin Chen

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User Simulations for Interactive Search: Evaluating Personalized Query Suggestion
Suzan Verberne | Maya Sappelli | Kalervo Järvelin | Wessel Kraaij

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The Impact of Query Interface Design on Stress, Workload and Performance
Ashlee Edwards | Diane Kelly | Leif Azzopardi

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Detecting Spam URLs in Social Media via Behavioral Analysis
Cheng Cao | James Caverlee

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Predicting Re-finding Activity and Difficulty
Sargol Sadeghi | Roi Blanco | Peter Mika | Mark Sanderson | Falk Scholer | David Vallet

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User Behavior in Location Search on Mobile Devices
Yaser Norouzzadeh Ravari | Ilya Markov | Artem Grotov | Maarten Clements | Maarten de Rijke

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Detecting the Eureka Effect in Complex Search
Hui Yang | Jiyun Luo | Christopher Wing

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Twitter Sentiment Detection via Ensemble Classification Using Averaged Confidence Scores
Matthias Hagen | Martin Potthast | Michel Büchner | Benno Stein

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Reproducible Experiments on Lexical and Temporal Feedback for Tweet Search
Jinfeng Rao | Jimmy Lin | Miles Efron

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Rank-Biased Precision Reloaded: Reproducibility and Generalization
Nicola Ferro | Gianmaria Silvello

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Knowledge Journey Exhibit: Towards Age-Adaptive Search User Interfaces
Tatiana Gossen | Michael Kotzyba | Andreas Nürnberger

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PopMeter: Linked-Entities in a Sentiment Graph
Filipa Peleja

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Adaptive Faceted Ranking for Social Media Comments
Elaheh Momeni | Simon Braendle | Eytan Adar

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Signal: Advanced Real-Time Information Filtering
Miguel Martinez-Alvarez | Udo Kruschwitz | Wesley Hall | Massimo Poesio

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The iCrawl Wizard - Supporting Interactive Focused Crawl Specification
Gerhard Gossen | Elena Demidova | Thomas Risse

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Linguistically-Enhanced Search over an Open Diachronic Corpus
Rafael C. Carrasco | Isabel Martínez-Sempere | Enrique Mollá-Gandía | Felipe Sánchez-Martínez | Gustavo Candela Romero | Maria Pilar Escobar Esteban

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From Context-Aware to Context-Based: Mobile Just-In-Time Retrieval of Cultural Heritage Objects
Jörg Schlötterer | Christin Seifert | Wolfgang Lutz | Michael Granitzer

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Visual Analytics for Information Retrieval Evaluation (VAIRË 2015)
Marco Angelini | Nicola Ferro | Giuseppe Santucci | Gianmaria Silvello

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A Tutorial on Measuring Document Retrievability
Leif Azzopardi

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A Formal Approach to Effectiveness Metrics for Information Access: Retrieval, Filtering, and Clustering
Enrique Amigó | Julio Gonzalo | Stefano Mizzaro

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Statistical Power Analysis for Sample Size Estimation in Information Retrieval Experiments with Users
Diane Kelly

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Join the Living Lab: Evaluating News Recommendations in Real-Time
Frank Hopfgartner | Torben Brodt

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5th Workshop on Context-Awareness in Retrieval and Recommendation
Ernesto William De Luca | Alan Said | Fabio Crestani | David Elsweiler

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Workshop Multimodal Retrieval in the Medical Domain (MRMD) 2015
Henning Müller | Oscar Alfonso Jiménez del Toro | Allan Hanbury | Georg Langs | Antonio Foncubierta-Rodríguez

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Second International Workshop on Gamification for Information Retrieval (GamifIR'15)
Frank Hopfgartner | Gabriella Kazai | Udo Kruschwitz | Michael Meder | Mark Shovman

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Supporting Complex Search Tasks - ECIR 2015 Workshop
Maria Gäde | Mark M. Hall | Hugo C. Huurdeman | Jaap Kamps | Marijn Koolen | Mette Skov | Elaine Toms | David Walsh

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Bibliometric-Enhanced Information Retrieval: 2nd International BIR Workshop
Philipp Mayr | Ingo Frommholz | Andrea Scharnhorst | Peter Mutschke