13:00 -> 14:30% Room Segóvia I Track Keynote Keynote Speaker – Jon Kleinberg
15:00 -> 16:30% Room Alhambra II Track Research Track - Recommender Systems I - 15:00 - 16:30 Is It Time for a Career Switch Presenters: Anmol Bhasin, Christian Posse, Yi Zhang, Jian Wang
15:00 -> 16:30% Room Alhambra II Track Research Track - Recommender Systems I - 15:00 - 16:30 SoCo: A Social Network Aided Context-Aware Recommender System Presenters: Xin Liu , Karl Aberer
15:00 -> 16:30% Room Alhambra II Track Research Track - Recommender Systems I - 15:00 - 16:30 One-class Collaborative Filtering with Random Graphs Presenters: Ulrich Paquet, Noam Koenigstein
15:00 -> 16:30% Room Alhambra II Track Research Track - Recommender Systems I - 15:00 - 16:30 Probabilistic Group Recommendation via Information Matching Presenters: Jagadeesh Gorla, Neal Lathia, Jun Wang, Stephen Robertson
15:00 -> 16:30% Room Liberdade Track Research Track - Log Analysis - 15:00 - 16:30 From Cookies to Cooks: Insights on Dietary Patterns via Analysis of Web Usage Logs Presenters: Robert West, Ryen W. White, Eric Horvitz
15:00 -> 16:30% Room Liberdade Track Research Track - Log Analysis - 15:00 - 16:30 A Young Liberal Christian Woman Is Searching The Web Presenters: Thore Graepel, Michal Kosinski, Bin Bi
15:00 -> 16:30% Room Liberdade Track Research Track - Log Analysis - 15:00 - 16:30 Web Usage Mining with Semantic Analysis Presenters: Laura Hollink, Peter Mika, Roi Blanco
15:00 -> 16:30% Room Liberdade Track Research Track - Log Analysis - 15:00 - 16:30 Mining Acronym Expansions and Their Meanings Using Query Click Log Presenters: Tao Cheng, Bilyana Taneva, Kaushik Chakrabarti, Yeye He
15:00 -> 16:30% Room El Pardo II Track Research Track - Semantic Querying and Retrieval - 15:00 - 16:30 Making the Most of your Triple Store: Query Answering in OWL 2 Using an RL Reasoner Presenters: Jay Banerjee, Zhe Wu, Yujiao Zhou, Bernardo Cuenca Grau, Ian Horrocks
15:00 -> 16:30% Room El Pardo II Track Research Track - Semantic Querying and Retrieval - 15:00 - 16:30 PrefixSolve: Efficiently Solving Multi-Source Multi-Destination Path Queries On RDF Graphs by Sharing Suffix Computations Presenters: Sidan Gao, Kemafor Anyanwu
15:00 -> 16:30% Room El Pardo II Track Research Track - Semantic Querying and Retrieval - 15:00 - 16:30 Sorry, I don’t speak SPARQL — Translating SPARQL Queries into Natural Language Presenters: Axel-Cyrille Ngonga Ngomo, Lorenz Bühmann, Christina Unger, Jens Lehmann, Daniel Gerber
15:00 -> 16:30% Room El Pardo I Track Research Track - Web Security: Attacks and Defenses - 15:00 - 16:30 The role of web hosting providers in detecting compromised websites (Best paper nominee) Presenters: Davide Canali, Davide Balzarotti, Aurélien Francillon
15:00 -> 16:30% Room El Pardo I Track Research Track - Web Security: Attacks and Defenses - 15:00 - 16:30 Transparent Key Infrastructure (TKI): A Proposal for a Public-Key Validation Presenters: Tiffany Hyun-Jin Kim, Lin-Shung Huang, Adrian Perrig, Collin Jackson, Virgil Gligor
15:00 -> 16:30% Room El Pardo I Track Research Track - Web Security: Attacks and Defenses - 15:00 - 16:30 Lightweight Server Support for Browser-Based CSRF Protection Presenters: Alexei Czeskis, Alexander Mikroyannidis, Tadayoshi Kohno, Helen Wang
15:00 -> 16:30% Room Alvorada I Track Research Track - Team / Group Formation and Stability - 15:00 - 16:30 Expressive Languages for Selecting Groups from Graph-Structured Data Presenters: Vitaliy Liptchinsky, Benjamin Satzger, Rostyslav Zabolotnyi, Schahram Dustdar
15:00 -> 16:30% Room Alvorada I Track Research Track - Team / Group Formation and Stability - 15:00 - 16:30 Towards Realistic Team Formation in Social Networks based on Densest Subgraphs Presenters: Syama Sundar Rangapuram, Thomas Bühler, Matthias Hein
15:00 -> 16:30% Room Alvorada I Track Research Track - Team / Group Formation and Stability - 15:00 - 16:30 Predicting Group Stability in Online Social Networks Presenters: Akshay Patil, Juan Liu, Jie Gao
15:00 -> 16:30% Room Alvorada I Track Research Track - Team / Group Formation and Stability - 15:00 - 16:30 Mining Structural Hole Spanners in Large Networks Presenters: Tiancheng Lou, Jie Tang
15:00 -> 16:30% Room Itamaraty Track Practice and Experience Track - Social Networks - 15:00 - 16:30 Predicting Purchase Behaviors from Social Media Presenters: Yongzheng Zhang, Marco Pennacchiotti
15:00 -> 16:30% Room Itamaraty Track Practice and Experience Track - Social Networks - 15:00 - 16:30 WTF: The Who to Follow Service at Twitter Presenters: Pankaj Gupta, Ashish Goel, Jimmy Lin, Aneesh Sharma, Dong Wang, Reza Zadeh
15:00 -> 16:30% Room Itamaraty Track Practice and Experience Track - Social Networks - 15:00 - 16:30 A CRM system for Social Media. Challenges and Experiences Presenters: Jitendra Ajmera, Ashish Verma, Danish Contractor, Stephen Dill, Hyung-Il Ahn, Meena Nagarajan, Matthew Denesuk
15:00 -> 16:30% Room Itamaraty Track Practice and Experience Track - Social Networks - 15:00 - 16:30 Trade Area Analysis Using User Generated Mobile Location Data Presenters: Yan Qu, Jun Zhang
15:00 -> 16:30% Room Alvorada II Track Developers Track A Meteoroid on Steroids: Ranking Media Items Stemming from Multiple Social Networks Presenter: Thomas Steiner
15:00 -> 16:30% Room Alvorada II Track Developers Track ResourceSync: Leveraging Sitemaps for Resource Synchronization Presenters: Bernhard Haslhofer, Simeon Warner, Martin Klein, Robert Sanderson, Herbert Van De Sompel, Michael Nelson, Carl Lagoze
15:00 -> 16:30% Room Alvorada II Track Developers Track Quill: A Collaborative Design Assistant for Cross Platform Web Application User Interfaces Presenters: Vivian G. Motti, Dave Raggett
15:00 -> 16:30% Room Alvorada II Track Developers Track Creating 3rd Generation Web APIs with Hydra Presenter: Markus Lanthaler
15:00 -> 16:30% Room El Pardo II Track Research Track - Semantic Querying and Retrieval - 15:00 - 16:30 Question Answering on Interlinked Data Presenters: Saeedeh Shekarpour, Sören Auer, Axel-Cyrille Ngonga Ngomo
15:00 -> 16:30% Room El Pardo I Track Research Track - Web Security: Attacks and Defenses - 15:00 - 16:30 When Tolerance Causes Weakness Presenters: Yossi Gilad, Amir Herzberg
15:00 -> 16:30% Room Imperial Track Demos Track Complementary Assistance Mechanisms for End User Mashup Composition Presenters: Soudip Roy Chowdhury, Olexiy Chudnovskyy, Matthias Niederhausen, Stefan Pietschmann, Florian Daniel, Paul Sharples, Martin Gaedke
15:00 -> 16:30% Room Imperial Track Demos Track Inside YAGO2s: A Transparent Information Extraction Architecture Presenters: Joanna Biega, Erdal Kuzey, Fabian M. Suchanek
15:00 -> 16:30% Room Imperial Track Demos Track Connected Media Experiences: Web based interactive video using Linked Data Presenters: Lyndon Nixon, Matthias Bauer, Cristian Bara
15:00 -> 16:30% Room Imperial Track Demos Track Temporal Summarization of Event-Related Updates in Wikipedia Presenters: Mihai Georgescu, Dang Duc Pham, Nattiya Kanhabua, Sergej Zerr, Stefan Siersdorfer, Wolfgang Nejdl
15:00 -> 16:30% Room Imperial Track Demos Track G-Path: Flexible Path Pattern Query on Large Graphs Presenters: Yiyuan Bai, Chaokun Wang
15:00 -> 16:30% Room Imperial Track Demos Track Search the past with the Portuguese Web Archive Presenters: Daniel Gomes, David Cruz, João Miranda, Miguel Costa, Simão Fontes
15:00 -> 16:30% Room Imperial Track Demos Track Qwwee: A Social Networking Website for Classifieds Presenter: Pramod Verma
15:00 -> 16:30% Room Alhambra I Track Parallel Activities HTML 5 Challenge Presenters: Philippe Le Hégaret, Zeno Rocha
17:00 -> 18:30% Room Alhambra II Track Research Track - Geoanalysis - 17:00 - 18:30 Psychological Maps 2.0: A web gamification enterprise starting in London Presenters: Daniele Quercia, Jon Crowcroft, Virgilio Almeida, João Paulo Pesce
17:00 -> 18:30% Room Alhambra II Track Research Track - Geoanalysis - 17:00 - 18:30 Using Stranger as Sensors: Temporal and Geo-sensitive Q&A via Social (Best student paper nominee) Presenters: Yefeng Liu, Tatsuo Nakajima, Todorka Alexandrova
17:00 -> 18:30% Room Alhambra II Track Research Track - Geoanalysis - 17:00 - 18:30 Hierarchical Geographical Modeling of User locations from Social Media Posts Presenters: Amr Ahmed, Liangjie Hong, Alex Smola
17:00 -> 18:30% Room Alhambra II Track Research Track - Geoanalysis - 17:00 - 18:30 Uncovering locally characterizing regions Presenters: Adam Rae, Bart Thomee
17:00 -> 18:30% Room Liberdade Track Research Track - Recommender Systems II - 17:00 - 18:30 DIGTOBI: A Recommendation System for Digg Articles using Probabilistic Modeling Presenters: Kyuseok Shim, Younghoon Kim, Yoonjae Park
17:00 -> 18:30% Room Liberdade Track Research Track - Recommender Systems II - 17:00 - 18:30 Localized Matrix Factorization for Recommendation based on Matrix Block Diagonal Forms Presenters: Yongfeng Zhang, Min Zhang, Yiqun Liu, Shaoping Ma, Shi Feng
17:00 -> 18:30% Room Liberdade Track Research Track - Recommender Systems II - 17:00 - 18:30 Whom to Mention: Expand the Diffusion of Tweets by @ Recommendation on Micro-blogging Systems Presenters: Can Wang, Beidou Wang, Xiaofei He, Deng Cai, Caroline Suen, Chun Chen, Wei Zhang, Jiajun Bu
17:00 -> 18:30% Room Liberdade Track Research Track - Recommender Systems II - 17:00 - 18:30 Personalized Recommendation via Cross-Domain Triadic Factorization Presenters: Jian Cao, Guandong Xu, Longbing Cao, Zhiping Gu, Can Zhu, Liang Hu
17:00 -> 18:30% Room El Pardo II Track Research Track - Web mining II - 17:00 - 18:30 Latent Credibility Analysis Presenters: Dan Roth, Jeff Pasternack
17:00 -> 18:30% Room El Pardo II Track Research Track - Web mining II - 17:00 - 18:30 Improving Homepage Classification using Unlabeled Data Presenters: Prasenjit Mitra, C. Lee Giles, Cornelia Caragea, Sujatha Das Gollapalli
17:00 -> 18:30% Room El Pardo II Track Research Track - Web mining II - 17:00 - 18:30 Unsupervised Sentiment Analysis with Emotional Signals Presenters: Xia Hu, Jiliang Tang, Huiji Gao, Huan Liu
17:00 -> 18:30% Room El Pardo II Track Research Track - Web mining II - 17:00 - 18:30 Sparse Online Topic Models Presenters: Aonan Zhang, Jun Zhu, Bo Zhang
17:00 -> 18:30% Room El Pardo I Track Research Track - Social Web UI - 17:00 - 18:30 Perception and Understanding of Social Annotations in Web Search Presenters: Jennifer Fernquist, Ed H. Chi
17:00 -> 18:30% Room El Pardo I Track Research Track - Social Web UI - 17:00 - 18:30 Google+ Ripples: A Native Visualization of Information Flow Presenters: Fernanda B. Viegas, Martin Wattenberg, Jack Hebert, Geoffrey Borggaard, Alison Cichowlas, Jonathan Feinberg, Jon Orwant, Christopher R. Wren
17:00 -> 18:30% Room El Pardo I Track Research Track - Social Web UI - 17:00 - 18:30 Do Social Explanations Work? – Studying and Modeling the Effects of Social Explanations in Recommender Systems Presenters: Amit Sharma , Dan Cosley
17:00 -> 18:30% Room El Pardo I Track Research Track - Social Web UI - 17:00 - 18:30 Saving, Reusing, and Remixing Web Video: using attitudes and practices to reveal social norms Presenters: Frank Shipman , Catherine Marshall
17:00 -> 18:30% Room Alvorada I Track Research Track - User Behavior in OSN - 17:00 - 18:30 Gender Swapping and User Behaviors in Online Social Games Presenters: Jing-Kai Lou, Kunwoo Park, Meeyoung Cha, Juyong Park, Chin-Laung Lei, Kuan-Ta Chen
17:00 -> 18:30% Room Alvorada I Track Research Track - User Behavior in OSN - 17:00 - 18:30 Steering User Behavior With Badges Presenters: Ashton Anderson, Daniel Huttenlocher, Jure Leskovec, Jon Kleinberg
17:00 -> 18:30% Room Alvorada I Track Research Track - User Behavior in OSN - 17:00 - 18:30 On Participation in Group Chats on Twitter Presenters: Ceren Budak, Rakesh Agrawal
17:00 -> 18:30% Room Alvorada I Track Research Track - User Behavior in OSN - 17:00 - 18:30 Group Chats on Twitter Presenters: James Cook, Krishnaram Kenthapadi, Nina Mishra
17:00 -> 18:30% Room Itamaraty Track Practice and Experience Track - System / Infrastructure - 17:00 - 18:30 A framework for benchmarking entity-annotation systems Presenters: Marco Cornolti, Paolo Ferragina, Massimiliano Ciaramita
17:00 -> 18:30% Room Itamaraty Track Practice and Experience Track - System / Infrastructure - 17:00 - 18:30 NIFTY: A System for Large Scale Information Flow Tracking and Clustering Presenters: Caroline Suen, Sandy Huang, Chantat Eksombatchai, Jure Leskovec, Roc Sosic
17:00 -> 18:30% Room Itamaraty Track Practice and Experience Track - System / Infrastructure - 17:00 - 18:30 Voices of Victory: A Computational Focus Group Framework for Tracking Opinion Shift in Real Time Presenters: Yu-Ru Lin, Drew Margolin, Brian Keegan, David Lazer
17:00 -> 18:30% Room Itamaraty Track Practice and Experience Track - System / Infrastructure - 17:00 - 18:30 Traveling the Silk Road: A measurement analysis of a large anonymous online marketplace Presenter: Nicolas Christin
17:00 -> 18:30% Room Imperial Track Demos Track Crowdsourcing MapReduce: JSMapReduce Presenters: Philpp Langhans, Christoph Wieser, François Bry
17:00 -> 18:30% Room Imperial Track Demos Track ALFRED: Crowd Assisted Data Extraction Presenters: Valter Crescenzi, Paolo Merialdo, Disheng Qiu
17:00 -> 18:30% Room Imperial Track Demos Track Radialize: A Tool for Social Listening Experience on the Web Based on Radio Station Programs Presenters: Álvaro Pereira Jr., Diego Dutra, Milton Stiilpen Jr., Alex Amorim Dutra, Felipe Martins Melo, Paulo H. C. Mendonça, Angelo Magno de Jesus, Kledilson Ferreira
17:00 -> 18:30% Room Imperial Track Demos Track SHERLOCK: A System for Location-Based Services in Wireless Environments Using Semantics Presenters: Roberto Yus, Eduardo Mena, Sergio Ilarri, Arantza Illarramendi
17:00 -> 18:30% Room Imperial Track Demos Track Live Migration of JavaScript Web Apps Presenters: James Lo, Eric Wohlstadter, Ali Mesbah
17:00 -> 18:30% Room Imperial Track Demos Track Optimizing RDF(S) Queries on Cloud Platforms Presenters: Hyeongsik Kim, Padmashree Ravindra, Kemafor Anyanwu
17:00 -> 18:30% Room Alhambra I Track Parallel Activities Talking about DRM Presenters: Nuba Princigalli, Leonardo Balter, Cláudio Berrondo, Deivi Kuhn
17:05 -> 18:30% Room Imperial Track Demos Track Large-Scale Social-Media Analytics on Stratosphere Presenters: Christoph Boden, Marcel Karnstedt, Miriam Fernandez, Volker Markl