844 search results - page 143 / 169 » Time-evolving modeling of social networks |
WIOPT
2010
IEEE
14 years 8 months ago
2010
IEEE
—Cognitive radio networks provide the capability to share the wireless channel with licensed (primary) users in an opportunistic manner. Primary users have a license to operate i...
ICDM
2009
IEEE
15 years 4 months ago
2009
IEEE
This paper offers a local distributed algorithm for expectation maximization in large peer-to-peer environments. The algorithm can be used for a variety of well-known data mining...
ICASSP
2010
IEEE
14 years 10 months ago
2010
IEEE
—We consider a cognitive radio network with distributed multiple secondary users, where each user independently searches for spectrum opportunities in multiple channels without e...
CPAIOR
2008
Springer
14 years 11 months ago
2008
Springer
This paper extends our previous work by exploring the use of a hybrid solution method for solving the connection subgraph problem. We employ a two phase solution method, which dras...
IUI
2004
ACM
15 years 3 months ago
2004
ACM
In this paper, we describe a method for pedagogical agents to choose when to interact with learners in interactive learning environments. This method is based on observations of h...