844 search results - page 143 / 169 » Time-evolving modeling of social networks |
WIOPT
2010
IEEE
13 years 6 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
14 years 2 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
13 years 8 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
13 years 9 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
14 years 1 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...