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ACM Transactions on Internet Technology (TOIT) - Special Issue on Foundations of Social Computing, Volume 15 Issue 1, February 2015

Special Issue on Foundations of Social Computing: Enabling Social Applications via Decentralized Social Data Management
Nicolas Kourtellis, Jeremy Blackburn, Cristian Borcea, Adriana Iamnitchi
Article No.: 1
DOI: 10.1145/2700057

An unprecedented information wealth produced by online social networks, further augmented by location/collocation data, is currently fragmented across different proprietary services. Combined, it can accurately represent the social world and...


Net Neutrality: Discrimination, Competition, and Innovation in the UK and US
Alissa Cooper, Ian Brown
Article No.: 2
DOI: 10.1145/2700055

We analyze UK and US experiences as they relate to two central net neutrality questions: (1) whether competition serves as a deterrent to the discriminatory treatment of Internet traffic, and (2) whether discrimination creates barriers to...

Strategic Formation of Credit Networks
Pranav Dandekar, Ashish Goel, Michael P. Wellman, Bryce Wiedenbeck
Article No.: 3
DOI: 10.1145/2700058

Credit networks are an abstraction for modeling trust among agents in a network. Agents who do not directly trust each other can transact through exchange of IOUs (obligations) along a chain of trust in the network. Credit networks are robust to...

Aggregate Characterization of User Behavior in Twitter and Analysis of the Retweet Graph
David R. Bild, Yue Liu, Robert P. Dick, Z. Morley Mao, Dan S. Wallach
Article No.: 4
DOI: 10.1145/2700060

Most previous analysis of Twitter user behavior has focused on individual information cascades and the social followers graph, in which the nodes for two users are connected if one follows the other. We instead study aggregate user behavior and...

P2P-Based, Multi-Attribute Resource Discovery under Real-World Resources and Queries
H. M. N. Dilum Bandara, Anura P. Jayasumana
Article No.: 5
DOI: 10.1145/2729139

Collaborative peer-to-peer (P2P), grid, and cloud computing rely on resource discovery (RD) solutions to aggregate groups of multi-attribute, dynamic, and distributed resources. However, specific characteristics of real-world resources and...