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ACM Transactions on Internet Technology (TOIT) - Special Issue on Advances in Social Computing and Regular Papers, Volume 17 Issue 2, May 2017

Section: Special Issue on Advances in Social Computing

Introduction to the Special Issue on Advances in Social Computing
Amit K. Chopra, Erez Shmueli, Vivek K. Singh
Article No.: 11
DOI: 10.1145/3080258

Detecting Influencers in Multiple Online Genres
Sara Rosenthal, Kathleen Mckeown
Article No.: 12
DOI: 10.1145/3014164

Social media has become very popular and mainstream, leading to an abundance of content. This wealth of content contains many interactions and conversations that can be analyzed for a variety of information. One such type of information is...

Anonymous or Not? Understanding the Factors Affecting Personal Mobile Data Disclosure
Christos Perentis, Michele Vescovi, Chiara Leonardi, Corrado Moiso, Mirco Musolesi, Fabio Pianesi, Bruno Lepri
Article No.: 13
DOI: 10.1145/3017431

The wide adoption of mobile devices and social media platforms have dramatically increased the collection and sharing of personal information. More and more frequently, users are called to make decisions concerning the disclosure of their personal...

Eliciting Structured Knowledge from Situated Crowd Markets
Jorge Goncalves, Simo Hosio, Vassilis Kostakos
Article No.: 14
DOI: 10.1145/3007900

We present a crowdsourcing methodology to elicit highly structured knowledge for arbitrary questions. The method elicits potential answers (“options”), criteria against which those options should be evaluated, and a ranking of the top...

Formation and Reciprocation of Dyadic Trust
Atanu Roy, Ayush Singhal, Jaideep Srivastava
Article No.: 15
DOI: 10.1145/2996184

This paper reports a detailed empirical study of interpersonal trust in a multi-relational online social network. This study addresses two main aspects of interpersonal trust: formation and reciprocation. Computational models developed, using...

Measurement Theory-Based Trust Management Framework for Online Social Communities
Yefeng Ruan, Ping Zhang, Lina Alfantoukh, Arjan Durresi
Article No.: 16
DOI: 10.1145/3015771

We propose a trust management framework based on measurement theory to infer indirect trust in online social communities using trust’s transitivity property. Inspired by the similarities between human trust and measurement, we propose a new...

Cyber-Physical Social Networks
Christian Von Der Weth, Ashraf M. Abdul, Mohan Kankanhalli
Article No.: 17
DOI: 10.1145/2996186

In the offline world, getting to know new people is heavily influenced by people’s physical context, that is, their current geolocation. People meet in classes, bars, clubs, public transport, and so on. In contrast, first-generation online...

Can We Predict a Riot? Disruptive Event Detection Using Twitter
Nasser Alsaedi, Pete Burnap, Omer Rana
Article No.: 18
DOI: 10.1145/2996183

In recent years, there has been increased interest in real-world event detection using publicly accessible data made available through Internet technology such as Twitter, Facebook, and YouTube. In these highly interactive systems, the general...

Dual Structure Constrained Multimodal Feature Coding for Social Event Detection from Flickr Data
Zhenguo Yang, Qing Li, Zheng Lu, Yun Ma, Zhiguo Gong, Wenyin Liu
Article No.: 19
DOI: 10.1145/3015463

In this work, a three-stage social event detection (SED) framework is proposed to discover events from Flickr-like data. First, multiple bipartite graphs are constructed for the heterogeneous feature modalities to achieve fused features....

Progressive Random Indexing: Dimensionality Reduction Preserving Local Network Dependencies
Michał Ciesielczyk, Andrzej Szwabe, Mikołaj Morzy, Paweł Misiorek
Article No.: 20
DOI: 10.1145/2996185

The vector space model is undoubtedly among the most popular data representation models used in the processing of large networks. Unfortunately, the vector space model suffers from the so-called curse of dimensionality, a phenomenon where data...

Section: Regular Papers

Spinel: An Opportunistic Proxy for Connecting Sensors to the Internet of Things
Benjamin Billet, Valérie Issarny
Article No.: 21
DOI: 10.1145/3041025

Nowadays, various static wireless sensor networks (WSN) are deployed in the environment for many purposes: traffic control, pollution monitoring, and so on. The willingness to open these legacy WSNs to the users is emerging, by integrating them to...

Statistical Learning of Domain-Specific Quality-of-Service Features from User Reviews
Xumin Liu, Weishi Shi, Arpeet Kale, Chen Ding, Qi Yu
Article No.: 22
DOI: 10.1145/3053381

With the fast increase of online services of all kinds, users start to care more about the Quality of Service (QoS) that a service provider can offer besides the functionalities of the services. As a result, QoS-based service selection and...