146 search results - page 6 / 30 » Spectrum based fraud detection in social networks |
ICPR
2006
IEEE
14 years 8 months ago
2006
IEEE
This paper shows how Social Network Analysis, the study of relational data in specific social environments, can be used to summarize multiparty radio news recordings. A social net...
ASUNAM
2009
IEEE
14 years 20 days ago
2009
IEEE
Community detection in social networks varying with time is a common yet challenging problem whereby efficient visualization of evolving relationships and implicit hierarchical s...
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
— Spectrum sensing is a key enabling functionality in cognitive radio (CR) networks, where the CRs act as secondary users that opportunistically access free frequency bands. Due ...
VTC
2008
IEEE
14 years 1 months ago
2008
IEEE
This paper considers a scenario in which a secondary user makes opportunistic use of a channel allocated to some primary network. The primary network operates in a time-slotted ma...
AAAI
2007
13 years 10 months ago
2007
Recently, social text streams (e.g., blogs, web forums, and emails) have become ubiquitous with the evolution of the web. In some sense, social text streams are sensors of the rea...