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Proceedings of the Fifth International Conference on Web Search and Web Data Mining, WSDM 2012, Seattle, WA, USA, February 8-12, 2012

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Nowcasting the macroeconomy with search engine data
Hal R. Varian

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Spatially-aware indexing for image object retrieval
Roelof van Zwol | Lluis Garcia Pueyo

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Auralist: introducing serendipity into music recommendation
Yuan Cao Zhang | Diarmuid Ó Séaghdha | Daniele Quercia | Tamas Jambor

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Efficient misbehaving user detection in online video chat services
Hanqiang Cheng | Yu-Li Liang | Xinyu Xing | Xue Liu | Richard Han | Qin Lv | Shivakant Mishra

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Beyond co-occurrence: discovering and visualizing tag relationships from geo-spatial and temporal similarities
Haipeng Zhang | Mohammed Korayem | Erkang You | David J. Crandall

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Object matching in tweets with spatial models
Nilesh N. Dalvi | Ravi Kumar | Bo Pang

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Beyond 100 million entities: large-scale blocking-based resolution for heterogeneous data
George Papadakis | Ekaterini Ioannou | Claudia Niederée | Themis Palpanas | Wolfgang Nejdl

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Mining contrastive opinions on political texts using cross-perspective topic model
Yi Fang | Luo Si | Naveen Somasundaram | Zhengtao Yu

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Coupled temporal scoping of relational facts
Partha Pratim Talukdar | Derry Wijaya | Tom M. Mitchell

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Overcoming browser cookie churn with clustering
Anirban Dasgupta | Maxim Gurevich | Liang Zhang | Belle L. Tseng | Achint Oommen Thomas

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mTrust: discerning multi-faceted trust in a connected world
Jiliang Tang | Huiji Gao | Huan Liu

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Of hammers and nails: an empirical comparison of three paradigms for processing large graphs
Marc Najork | Dennis Fetterly | Alan Halverson | Krishnaram Kenthapadi | Sreenivas Gollapudi

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Pairwise cross-domain factor model for heterogeneous transfer ranking
Bo Long | Yi Chang | Anlei Dong | Jianzhang He

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Scalable inference in latent variable models
Amr Ahmed | Mohamed Aly | Joseph Gonzalez | Shravan M. Narayanamurthy | Alexander J. Smola

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Learning recommender systems with adaptive regularization
Steffen Rendle

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Collaborative ranking
Suhrid Balakrishnan | Sumit Chopra

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From chatter to headlines: harnessing the real-time web for personalized news recommendation
Gianmarco De Francisci Morales | Aristides Gionis | Claudio Lucchese

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ETF: extended tensor factorization model for personalizing prediction of review helpfulness
Samaneh Moghaddam | Mohsen Jamali | Martin Ester

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Multi-relational matrix factorization using bayesian personalized ranking for social network data
Artus Krohn-Grimberghe | Lucas Drumond | Christoph Freudenthaler | Lars Schmidt-Thieme

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Comment spam detection by sequence mining
Ravi Kant | Srinivasan H. Sengamedu | Krishnan S. Kumar

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Mining slang and urban opinion words and phrases from cQA services: an optimization approach
Hadi Amiri | Tat-Seng Chua

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No search result left behind: branching behavior with browser tabs
Jeff Huang | Thomas Lin | Ryen W. White

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Characterizing web content, user interests, and search behavior by reading level and topic
Jin Young Kim | Kevyn Collins-Thompson | Paul N. Bennett | Susan T. Dumais

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Topical clustering of search results
Ugo Scaiella | Paolo Ferragina | Andrea Marino | Massimiliano Ciaramita

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To each his own: personalized content selection based on text comprehensibility
Chenhao Tan | Evgeniy Gabrilovich | Bo Pang

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WebSets: extracting sets of entities from the web using unsupervised information extraction
Bhavana Bharat Dalvi | William W. Cohen | Jamie Callan

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Selecting actions for resource-bounded information extraction using reinforcement learning
Pallika H. Kanani | Andrew McCallum

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Online selection of diverse results
Debmalya Panigrahi | Atish Das Sarma | Gagan Aggarwal | Andrew Tomkins

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Overlapping clusters for distributed computation
Reid Andersen | David F. Gleich | Vahab S. Mirrokni

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Sponsored search auctions with conflict constraints
Panagiotis Papadimitriou | Hector Garcia-Molina

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Post-click conversion modeling and analysis for non-guaranteed delivery display advertising
Rómer Rosales | Haibin Cheng | Eren Manavoglu

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Incorporating revisiting behaviors into click models
Danqing Xu | Yiqun Liu | Min Zhang | Shaoping Ma | Liyun Ru

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A noise-aware click model for web search
Weizhu Chen | Dong Wang | Yuchen Zhang | Zheng Chen | Adish Singla | Qiang Yang

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Personalized click model through collaborative filtering
Si Shen | Botao Hu | Weizhu Chen | Qiang Yang

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Fair and balanced: learning to present news stories
Amr Ahmed | Choon Hui Teo | S. V. N. Vishwanathan | Alexander J. Smola

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Extracting search-focused key n-grams for relevance ranking in web search
Chen Wang | Keping Bi | Yunhua Hu | Hang Li | Guihong Cao

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Query suggestion by constructing term-transition graphs
Yang Song | Dengyong Zhou | Li-wei He

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Language models for keyword search over data graphs
Yosi Mass | Yehoshua Sagiv

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Large-scale analysis of individual and task differences in search result page examination strategies
Georg Buscher | Ryen W. White | Susan T. Dumais | Jeff Huang

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Sequence clustering and labeling for unsupervised query intent discovery
Jackie Chi Kit Cheung | Xiao Li

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IR system evaluation using nugget-based test collections
Virgiliu Pavlu | Shahzad Rajput | Peter B. Golbus | Javed A. Aslam

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Tapping into knowledge base for concept feedback: leveraging conceptnet to improve search results for difficult queries
Alexander Kotov | ChengXiang Zhai

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Domain bias in web search
Samuel Ieong | Nina Mishra | Eldar Sadikov | Li Zhang

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Optimized top-k processing with global page scores on block-max indexes
Dongdong Shan | Shuai Ding | Jing He | Hongfei Yan | Xiaoming Li

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Probabilistic models for personalizing web search
David A. Sontag | Kevyn Collins-Thompson | Paul N. Bennett | Ryen W. White | Susan T. Dumais | Bodo Billerbeck

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Effective query formulation with multiple information sources
Michael Bendersky | Donald Metzler | W. Bruce Croft

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Learning to rank with multi-aspect relevance for vertical search
Changsung Kang | Xuanhui Wang | Yi Chang | Belle L. Tseng

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Beyond ten blue links: enabling user click modeling in federated web search
Danqi Chen | Weizhu Chen | Haixun Wang | Zheng Chen | Qiang Yang

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Finding the right consumer: optimizing for conversion in display advertising campaigns
Yandong Liu | Sandeep Pandey | Deepak Agarwal | Vanja Josifovski

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Fast top-k retrieval for model based recommendation
Deepak Agarwal | Maxim Gurevich

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Relational click prediction for sponsored search
Chenyan Xiong | Taifeng Wang | Wenkui Ding | Yidong Shen | Tie-Yan Liu

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"I loan because...": understanding motivations for pro-social lending
Yang Liu | Roy Chen | Yan Chen | Qiaozhu Mei | Suzy Salib

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Correlating financial time series with micro-blogging activity
Eduardo J. Ruiz | Vagelis Hristidis | Carlos Castillo | Aristides Gionis | Alejandro Jaimes

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Harmony and dissonance: organizing the people's voices on political controversies
Rawia Awadallah | Maya Ramanath | Gerhard Weikum

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Identifying content for planned events across social media sites
Hila Becker | Dan Iter | Mor Naaman | Luis Gravano

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Daily deals: prediction, social diffusion, and reputational ramifications
John W. Byers | Michael Mitzenmacher | Georgios Zervas

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On clustering heterogeneous social media objects with outlier links
Guo-Jun Qi | Charu C. Aggarwal | Thomas S. Huang

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Adding semantics to microblog posts
Edgar Meij | Wouter Weerkamp | Maarten de Rijke

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Exploring social influence via posterior effect of word-of-mouth recommendations
Junming Huang | Xueqi Cheng | Huawei Shen | Tao Zhou | Xiaolong Jin

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Find me opinion sources in blogosphere: a unified framework for opinionated blog feed retrieval
Xueke Xu | Songbo Tan | Yue Liu | Xueqi Cheng | Zheng Lin | Jiafeng Guo

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Understanding cyclic trends in social choices
Anish Das Sarma | Sreenivas Gollapudi | Rina Panigrahy | Li Zhang

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Maximizing product adoption in social networks
Smriti Bhagat | Amit Goyal | Laks V. S. Lakshmanan

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Answers, not links: extracting tips from yahoo! answers to address how-to web queries
Ingmar Weber | Antti Ukkonen | Aristides Gionis

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A straw shows which way the wind blows: ranking potentially popular items from early votes
Peifeng Yin | Ping Luo | Min Wang | Wang-Chien Lee

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A large-scale sentiment analysis for Yahoo! answers
Onur Kucuktunc | Berkant Barla Cambazoglu | Ingmar Weber | Hakan Ferhatosmanoglu

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What's in a hashtag?: content based prediction of the spread of ideas in microblogging communities
Oren Tsur | Ari Rappoport

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Tips, dones and todos: uncovering user profiles in foursquare
Marisa A. Vasconcelos | Saulo M. R. Ricci | Jussara M. Almeida | Fabrício Benevenuto | Virgílio A. F. Almeida

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When will it happen?: relationship prediction in heterogeneous information networks
Yizhou Sun | Jiawei Han | Charu C. Aggarwal | Nitesh V. Chawla

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The life and death of online groups: predicting group growth and longevity
Sanjay Ram Kairam | Dan J. Wang | Jure Leskovec

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Evaluating search in personal social media collections
Chia-Jung Lee | W. Bruce Croft | Jin Young Kim

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Learning evolving and emerging topics in social media: a dynamic nmf approach with temporal regularization
Ankan Saha | Vikas Sindhwani

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Effects of user similarity in social media
Ashton Anderson | Daniel P. Huttenlocher | Jon M. Kleinberg | Jure Leskovec

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How user behavior is related to social affinity
Rina Panigrahy | Marc Najork | Yinglian Xie

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Finding your friends and following them to where you are
Adam Sadilek | Henry A. Kautz | Jeffrey P. Bigham

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How to win friends and influence people, truthfully: influence maximization mechanisms for social networks
Yaron Singer

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Inferring social ties across heterogenous networks
Jie Tang | Tiancheng Lou | Jon M. Kleinberg

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The secret life of social links
Hilary Mason

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Exploration and discovery of user-generated content in large information spaces
Luca Chiarandini

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Computational advertising: leveraging user interaction & contextual factors for improved ad relevance & targeting
Kushal S. Dave

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The early bird gets the buzz: detecting anomalies and emerging trends in information networks
Brian Thompson

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Characterizing and harnessing peer-production of information in social tagging systems
Elizeu Santos-Neto

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Mining, searching and exploiting collaboratively generated content on the web
Eugene Agichtein | Evgeniy Gabrilovich

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Collaborative information seeking: understanding users, systems, and content
Chirag Shah

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Machine learning for query-document matching in search
Hang Li | Jun Xu

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2nd international workshop on diversity in document retrieval (DDR 2012)
Craig Macdonald | Jun Wang | Charles L. A. Clarke

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WSCD 2012: workshop on web search click data 2012
Pavel Serdyukov | Nick Craswell | Georges Dupret