Sciweavers

1208 search results - page 61 / 242
» Information technology as social phenomenon
Sort
View
WWW
2009
ACM
16 years 2 months ago
To join or not to join: the illusion of privacy in social networks with mixed public and private user profiles
In order to address privacy concerns, many social media websites allow users to hide their personal profiles from the public. In this work, we show how an adversary can exploit an...
Elena Zheleva, Lise Getoor
WWW
2008
ACM
16 years 2 months ago
Social and semantics analysis via non-negative matrix factorization
Social media such as Web forum often have dense interactions between user and content where network models are often appropriate for analysis. Joint non-negative matrix factorizat...
Zhi-Li Wu, Chi-Wa Cheng, Chun-hung Li
SIGIR
2010
ACM
15 years 5 months ago
Inferring user intent in web search by exploiting social annotations
In this paper, we present a folksonomy-based approach for implicit user intent extraction during a Web search process. We present a number of result re-ranking techniques based on...
Jose M. Conde, David Vallet, Pablo Castells
DAGSTUHL
2006
15 years 2 months ago
On Comparison of Mechanisms of Economic and Social Exchanges: The Times Model
Abstract. An e-market system is a concrete implementation of a market institution; it embeds one or more exchange mechanisms. E-market systems are also information systems which ar...
Gregory E. Kersten, Eva Chen, Dirk Neumann, Rustam...
CIKM
2008
Springer
15 years 2 months ago
Social tags: meaning and suggestions
This paper aims to quantify two common assumptions about social tagging: (1) that tags are “meaningful” and (2) that the tagging process is influenced by tag suggestions. For...
Fabian M. Suchanek, Milan Vojnovic, Dinan Gunaward...