1716 search results - page 93 / 344 » Approximation Algorithms for Data Broadcast in Wireless Netw... |
KDD
2009
ACM
14 years 9 months ago
2009
ACM
We propose two approximation algorithms for identifying communities in dynamic social networks. Communities are intuitively characterized as "unusually densely knit" sub...
GLOBECOM
2007
IEEE
13 years 10 months ago
2007
IEEE
- How to prolong the lifetime of wireless sensor networks is one of the most important design issues. In order to tackle this issue, we propose an energy-efficient polynomial regre...
ICUMT
2009
13 years 6 months ago
2009
We consider the problem of joint power control, scheduling and routing in energy harvesting sensor networks allowing for multicast of data generated at the sensor nodes to a set of...
VLDB
2002
ACM
13 years 8 months ago
2002
ACM
We present algorithms for computing frequency counts exceeding a user-specified threshold over data streams. Our algorithms are simple and have provably small memory footprints. A...
ICASSP
2009
IEEE
14 years 3 months ago
2009
IEEE
We present a data-driven framework for expanding the lexicon to improve Mandarin broadcast news and conversation speech recognition. The lexicon expansion includes the generation ...