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RECSYS
2009
ACM
14 years 3 months ago
Learning to recommend with trust and distrust relationships
With the exponential growth of Web contents, Recommender System has become indispensable for discovering new information that might interest Web users. Despite their success in th...
Hao Ma, Michael R. Lyu, Irwin King
RECSYS
2009
ACM
14 years 3 months ago
Ordering innovators and laggards for product categorization and recommendation
Different buyers exhibit different purchasing behaviors. Some rush to purchase new products while others tend to be more cautious, waiting for reviews from people they trust. In...
Sarah K. Tyler, Shenghuo Zhu, Yun Chi, Yi Zhang
SIGCOMM
2009
ACM
14 years 3 months ago
Hot today, gone tomorrow: on the migration of MySpace users
While some empirical studies on Online Social Networks (OSNs) have examined the growth of these systems, little is known about the patterns of decline in user population or user a...
Mojtaba Torkjazi, Reza Rejaie, Walter Willinger
SIGCOMM
2009
ACM
14 years 3 months ago
CrossTalk: scalably interconnecting instant messaging networks
We consider the problem of interconnecting a simple type of social network: Instant Messaging services. Today, users are members of various IM communities such as AOL, Yahoo, and ...
Marti A. Motoyama, George Varghese
SIGECOM
2009
ACM
111views ECommerce» more  SIGECOM 2009»
14 years 3 months ago
A qualitative vickrey auction
Restricting the preferences of the agents by assuming that their utility functions linearly depend on a payment allows for the positive results of the Vickrey auction and the Vick...
Paul Harrenstein, Mathijs de Weerdt, Vincent Conit...