850 search results - page 146 / 170 » The structure of information pathways in a social communicat... |
TPDS
2008
13 years 7 months ago
2008
We study the problem of constructing a data gathering tree over a wireless sensor network in order to minimize the total energy for compressing and transporting information from a ...
SIGMOD
2004
ACM
14 years 1 months ago
2004
ACM
Data items are often associated with a location in which they are present or collected, and their relevance or in uence decays with their distance. Aggregate values over such data...
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
—We consider the situation where N nodes share a common access point. With each node i there is an associated buffer and channel state that change in time. Node i dynamically cho...
ACSAC
2010
IEEE
13 years 5 months ago
2010
IEEE
Twitter is a new web application playing dual roles of online social networking and micro-blogging. Users communicate with each other by publishing text-based posts. The popularit...
GLOBECOM
2008
IEEE
14 years 2 months ago
2008
IEEE
Abstract—We consider the location service in a mobile adhoc network (MANET), where each node needs to maintain its location information in the network by (i) frequently updating ...