1254 search results - page 192 / 251 » Making Hard Problems Harder |
MOBIHOC
2005
ACM
14 years 8 months ago
2005
ACM
We consider a wireless sensor network in which sensors are grouped into clusters, each with its own cluster head (CH). Each CH collects data from sensors in its cluster and relays...
MOBIHOC
2005
ACM
14 years 8 months ago
2005
ACM
Node compromise poses severe security threats in wireless sensor networks. Unfortunately, existing security designs can address only a small, fixed threshold number of compromised...
WSDM
2010
ACM
14 years 6 months ago
2010
ACM
Social media sites (e.g., Flickr, YouTube, and Facebook) are a popular distribution outlet for users looking to share their experiences and interests on the Web. These sites host ...
WSDM
2010
ACM
14 years 6 months ago
2010
ACM
We consider a set of views stating possibly conflicting facts. Negative facts in the views may come, e.g., from functional dependencies in the underlying database schema. We want ...
WSDM
2010
ACM
14 years 6 months ago
2010
ACM
Activity in social media such as blogs, micro-blogs, social networks, etc is manifested via interaction that involves text, images, links and other information items. Naturally, s...