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Displaying 1-8 out of 8 total
The Social Hourglass: An Infrastructure for Socially Aware Applications and Services
Found in: IEEE Internet Computing
By Adriana Iamnitchi,Jeremy Blackburn,Nicolas Kourtellis
Issue Date:May 2012
pp. 13-23
As the Internet's hourglass architecture connects various resources to various applications, an infrastructure that collects information from various social signals can support an ever-evolving set of socially aware applications and services. Among the pro...
Leveraging Peer Centrality in the Designof Socially-Informed Peer-to-Peer Systems
Found in: IEEE Transactions on Parallel and Distributed Systems
By Nicolas Kourtellis,Adriana Iamnitchi
Issue Date:September 2014
pp. 2364-2374
Social applications mine user social graphs to improve performance in search, provide recommendations, allow resource sharing and increase data privacy. When such applications are implemented on a peer-to-peer (P2P) architecture, the social graph is distri...
Stock trade volume prediction with Yahoo Finance user browsing behavior
Found in: 2014 IEEE 30th International Conference on Data Engineering (ICDE)
By Ilaria Bordino,Nicolas Kourtellis,Nikolay Laptev,Youssef Billawala
Issue Date:March 2014
pp. 1168-1173
Web traffic represents a powerful mirror for various real-world phenomena. For example, it was shown that web search volumes have a positive correlation with stock trading volumes and with the sentiment of investors. Our hypothesis is that user browsing be...
Branded with a scarlet "C": cheaters in a gaming social network
Found in: Proceedings of the 21st international conference on World Wide Web (WWW '12)
By Adriana Iamnitchi, Jeremy Blackburn, John Skvoretz, Matei Ripeanu, Xiang Zuo, Nicolas Kourtellis, Ramanuja Simha
Issue Date:April 2012
pp. 81-90
Online gaming is a multi-billion dollar industry that entertains a large, global population. One unfortunate phenomenon, however, poisons the competition and the fun: cheating. The costs of cheating span from industry-supported expenditures to detect and l...
Vulnerability in socially-informed peer-to-peer systems
Found in: Proceedings of the 4th Workshop on Social Network Systems (SNS '11)
By Adriana Iamnitchi, Jeremy Blackburn, Nicolas Kourtellis
Issue Date:April 2011
pp. 1-6
The recent increase in the volume of recorded social interactions has the potential to enable a large class of innovative social applications and services. The decentralized management of such social information as a social graph distributed on a user-cont...
K-path centrality: a new centrality measure in social networks
Found in: Proceedings of the 4th Workshop on Social Network Systems (SNS '11)
By Adriana Iamnitchi, Nicolas Kourtellis, Rahul Tripathi, Ramanuja Simha, Tharaka Alahakoon
Issue Date:April 2011
pp. 1-6
This paper proposes an alternative way to identify nodes with high betweenness centrality. It introduces a new metric, κ-path centrality, and a randomized algorithm for estimating it, and shows empirically that nodes with high κ-path centrality...
On managing social data for enabling socially-aware applications and services
Found in: Proceedings of the 3rd Workshop on Social Network Systems (SNS '10)
By Adriana Iamnitchi, Joshua Finnis, Nicolas Kourtellis, Paul Anderson
Issue Date:April 2010
pp. 1-6
Applications and services that take advantage of social data usually infer social relationships using information produced only within their own context. We propose to combine social information from multiple sources into a directed and weighted social mul...
Data transfers in the grid: workload analysis of globus GridFTP
Found in: Proceedings of the 2008 international workshop on Data-aware distributed computing (DADC '08)
By Adriana Iamnitchi, Dan Fraser, Gustavo Zarrate, Lydia Prieto, Nicolas Kourtellis
Issue Date:June 2008
pp. 29-38
One of the basic services in grids is the transfer of data between remote machines. Files may be transferred at the explicit request of the user or as part of delegated resource management services, such as data replication or job scheduling. GridFTP is an...