ACM CONFERENCE ON ONLINE SOCIAL NETWORKS (COSN'15) NOVEMBER 2-3, 2015 Stanford University, California, USA

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Program

Keynote talks

Jon Kleinberg, Cornell University
Alex Roetter, Senior Vice President, Head of Engineering, Twitter. Bio

Conference proceedings

http://dl.acm.org/citation.cfm?id=2817946

List of accepted posters

Time	Title
November 2
8:30 am	Breakfast
9:00 am	Welcome and introduction
9:15 am	Keynote: Jon Kleinberg, Cornell University On-Line Social Systems with Long-Range Goals | Slides
	Computational methods and algorithms
10:15 am	On predictability of rare events leveraging social media: a machine learning perspective
10:35 am	Tracking Triadic Cardinality Distributions for Burst Detection in Social Activity Streams
10:55 am	Streaming Graph Partitioning in the Planted Partition Model
11:15 am	Coffee
	Economics including advertising and monetization
11:35 am	Who Contributes to the Knowledge Sharing Economy?
11:55 am	Social Visibility and the Gifting of Digital Goods
12:15 pm	Lunch
	Privacy
1:50 pm	Identifying Personal Information in Internet Traffic
2:10 pm	The City Privacy Attack: Combining Social Media and Public Records for Detailed Profiles of Adults and Children
2:30 pm	Impact of Clustering on the Performance of Network De-anonymization
2:50 pm	Poster session (List of accepted posters)
	Security & Information
3:50 pm	Towards Graph Watermarks
4:10 pm	Strength in Numbers: Robust Tamper Detection in Crowd Computations (Best paper award)
4:30 pm	Diffusion Maximization in Evolving Social Networks
4:50 pm	Panel Discussion: Opportunities for Research in Online Learning with Michael Bernstein, John Mitchell, Mitchell Stevens, chaired by Amin Saberi, Stanford University
6:30 pm	Dinner banquet
November 3
8:30 am	Breakfast
9:00 am	Keynote: Alex Roetter, Twitter Building a platform for connecting the world
	Measurements and experimentation
10:00 am	Process-driven Analysis of Dynamics in Online Social Interactions
10:20 am	Negative Messages Spread Rapidly and Widely on Social Media
10:40 am	Coffee
	Location
11:00 am	Location Prediction: Communities Speak Louder than Friends
11:20 am	Not All Trips are Equal: Analyzing Foursquare Check-ins of Trips and City Visitors
11:40 pm	"I don’t have a photograph, but you can have my footprints." – Revealing the Demographics of Location Data
12:00 noon	Lunch
	Learnings from operational social networks
1:30 pm	Information Seeking and Responding Networks in Physical Gatherings: A Case Study of Academic Conferences in Twitter
1:50 pm	Mining User Deliberation and Bias in Online Newsgroups: A Dynamic View
2:10 pm	Coffee
	Novel applications of social networks
2:30 pm	Dawn of the Selfie Era: The Whos, Wheres and Hows of Selfies on Instagram
2:50 pm	Characterizing Conversation Patterns in Reddit: From the Perspectives of Content Properties and User Participation Behaviors
3:10 pm	Sharing Topics in Pinterest: Understanding Content Creation and Diffusion Behaviors
3:30 pm	Team Formation in Online Educational Platforms
3:50 pm	Birds of a Feather

Alex Roetter, Senior Vice President, Engineering

Bio

Alex is responsible for engineering at Twitter, including software and hardware engineering, analytics, and operations. Prior to joining Twitter in 2010, he was Director of Engineering at the Laufer Wind Group, developing radar technology for renewable energy applications. Earlier, he spent seven years at Google as a software engineer and technical lead, on the founding team for AdSense and later on a variety of systems and ads quality projects. Alex holds a BS with Honors and MS in Computer Science from Stanford University. His Twitter handle is @aroetter.

List of accepted papers

Identifying Personal Information in Internet Traffic
Yabing Liu (Northeastern University)
Han Hee Song (Symantec Corporation)
Ignacio Bermudez (Symantec Corporation)
Alan Mislove (Northeastern University)
Mario Baldi (Politecnico di Torino and Cisco Systems)
Alok Tongaonkar (Symantec Corporation)
Yabing Liu (Northeastern University)

Dawn of the Selfie Era: The Whos, Wheres and Hows of Selfie Users on Instagram
Flávio Souza (UFMG)
Diego de Las Casas (UFMG)
Vinícius Flores (UFMG)
SunBum Youn (KAIST)
Meeyoung Cha (Facebook & KAIST)
Daniele Quercia (KAIST)
Virgílio Almeida (UFMG)

On predictability of rare events leveraging social media: a machine learning perspective
Lei Le (Indiana University)
Emilio Ferrara (Indiana University)
Alessandro Flammini (Indiana University)

Streaming Graph Partitioning in the Planted Partition Model
Charalampos Tsourakakis (Harvard University)

Mining User Deliberation and Bias in Online Newsgroups: A Dynamic View
Teng Wang (University of California, Davis)
Fredrik Erlandsson (Blekinge Institute of Technology)
S. Felix Wu (University of California, Davis)

Process-driven Analysis of Dynamics in Online Social Interactions
Zhi Yang (Peking University, Beijing, China)
Jilong Xue (Peking University, Beijing, China)
Christo Wilson (Northeastern University, MA, USA)
Ben Y. Zhao (U. C. Santa Barbara, CA, USA)
Yafei Dai (Peking University, Beijing, China)

Impact of Clustering on the Performance of Network De-anonymization
Carla Fabiana Chiasserini (Politecnico di Torino)
Michele Garetto (Università di Torino)
Emilio Leonardi (Politecnico di Torino)

Location Prediction: Communities Speak Louder than Friends
Jun Pang (University of Luxembourg)
Yang Zhang (University of Luxembourg)

Tracking Triadic Cardinality Distributions for Burst Detection in Social Activity Streams
Junzhou Zhao (Xi'an Jiaotong University)
John C.S. Lui (The Chinese University of Hong Kong)
Don Towsley (University of Massachusetts at Amherst)
Pinghui Wang (Xi'an Jiaotong University)
Xiaohong Guan (Xi'an Jiaotong University)

Towards Graph Watermarks
Xiaohan Zhao (UCSB)
Qingyun Liu (UCSB)
Haitao Zheng (UCSB)
Ben Y. Zhao (UCSB)

The City Privacy Attack: Combining Social Media and Public Records for Detailed Profiles of Adults and Children
Tehila Minkus (NYU)
Yuan Ding (NYU)
Ratan Dey (NYU)
Keith W. Ross (NYU and NYU Shanghai)

Not All Trips are Equal: Analyzing Foursquare Check-ins of Trips and City Visitors
Wen-Haw Chong (Singapore Management University)
Bing Tian Dai (Singapore Management University)
Ee-Peng Lim (Singapore Management University)

Characterizing Conversation Patterns in Reddit: From the Perspectives of Content Properties and User Participation Behaviors
Daejin Choi (Seoul National University)
Jinyoung Han (University of California, Davis)
Taejoong Chung (Seoul National University)
Yong-Yeol Ahn (Indiana University)
Byung-Gon Chun (Byung-Gon Chun)
Ted "Taekyoung" Kwon (Seoul National University)

Information Seeking and Responding Networks in Physical Gatherings: A Case Study of Academic Conferences in Twitter
Xidao Wen (University of Pittsburgh)
Yu-Ru Lin (University of Pittsburgh)

Sharing Topics in Pinterest: Understanding Content Creation and Diffusion Behaviors
Jinyoung Han (University of California, Davis)
Daejin Choi (Seoul National University)
A-Young Choi (Sungkyunkwan University)
Jiwon Choi (Seoul National University)
Taejoong Chung (Seoul National University)
Ted "Taekyoung" Kwon (Seoul National University)
Jong-Youn Rha (Seoul National University)
Chen-Nee Chuah (University of California, Davis)

Negative Messages Spread Rapidly and Widely on Social Media
Sho Tsugawa (University of Tsukuba)
Hiroyuki Ohsaki (Kwansei Gakuin University)

Who Contributes to the Knowledge Sharing Economy?
Arthi Ramachandran (Columbia University)
Augustin Chaintreau (Columbia University)

Strength in Numbers: Robust Tamper Detection in Crowd Computations
(Best paper award)
Bimal Viswanath (MPI-SWS)
Muhammad Ahmad Bashir (Northeastern University)
Muhammad Bilal Zafar (MPI-SWS)
Simon Bouget (ENS Rennes – IRISA)
Saikat Guha (Microsoft Research India)
Krishna P. Gummadi (MPI-SWS)
Aniket Kate (Saarland University)
Alan Mislove (Northeastern University)

Diffusion Maximization in Evolving Social Networks
Nathalie Gayraud (University of Ioannina)
Evaggelia Pitoura (University of Ioannina)
Panayiotis Tsaparas (University of Ioannina)

Social Visibility and the Gifting of Digital Goods
Jameson K. M. Watts (Willamette University)
Yotam Shmargad (University of Arizona)

Team Formation in Online Educational Platforms
Milad Eftekhar (University of Toronto)
Farnaz Ronaghi (Stanford University, NovoED Inc.)
Amin Saberi (Stanford University, NovoED Inc.)

I don't have a photograph but you can have my footprints - Revealing the Demographics of Location Data
Chris Riederer (Columbia University)
Sebastian Zimmeck (Columbia University)
Coralie Phanord (Columbia University)
Augustin Chaintreau (Columbia University)
Steven M. Bellovin (Columbia University)

List of accepted posters

Overlap Between Google and Bing Web Search Results! Twitter to the Rescue?
Rakesh Agrawal (Data Insights Laboratories)
Behzad Golshan (Boston University)
Evangelos Papalexakis (Carnegie Mellon University)

Accelerating Graph Mining Algorithms via Uniform Random Edge Sampling
Ruohan Gao (The Chinese University of Hong Kong)
Huanle Xu (The Chinese University of Hong Kong)
Pili Hu (The Chinese University of Hong Kong)
Wing Cheong Lau (The Chinese University of Hong Kong)

Discovering Opinion Spammer Groups by Network Footprints
Junting Ye (Stony Brook University)
Leman Akoglu (Stony Brook University)

You Can Yak But You Can't Hide
Carson L. Nemelka (NYU Shanghai)
Cameron L. Ballard (NYU Shanghai)
Kelvin Liu (NYU Shanghai)
Minhui Xue (East China Normal University / NYU Shanghai)
Keith W. Ross (New York University / NYU Shanghai)

I Owe You Ripples: Linking Wallets and Deanonymizing Payments in the Ripple Network
Pedro Moreno-Sanchez (CISPA, Saarland University)
Muhammad Bilal Zafar (MPI-SWS)
Aniket Kate (CISPA, Saarland University)

The Federated Object Sharing Protocol: A unifying protocol for online social networks
Felix K. Maurer (Karlsruhe Institute of Technology)

Quantifying Location Sociality
Jun Pang and Yang Zhang (University of Luxembourg)

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