Sciweavers

4865 search results - page 622 / 973
» The Complexity of Graph Connectivity
Sort
View
SIGMOD
2009
ACM
220views Database» more  SIGMOD 2009»
16 years 7 months ago
Keyword search in databases: the power of RDBMS
Keyword search in relational databases (RDBs) has been extensively studied recently. A keyword search (or a keyword query) in RDBs is specified by a set of keywords to explore the...
Lu Qin, Jeffrey Xu Yu, Lijun Chang
IMC
2009
ACM
16 years 1 months ago
Characterizing user behavior in online social networks
Understanding how users behave when they connect to social networking sites creates opportunities for better interface design, richer studies of social interactions, and improved ...
Fabrício Benevenuto, Tiago Rodrigues, Meeyo...
FOCS
2008
IEEE
16 years 1 months ago
Degree Bounded Network Design with Metric Costs
Given a complete undirected graph, a cost function on edges and a degree bound B, the degree bounded network design problem is to find a minimum cost simple subgraph with maximum...
Yuk Hei Chan, Wai Shing Fung, Lap Chi Lau, Chun Ko...
INFOCOM
2007
IEEE
16 years 1 months ago
Fault-Tolerant Relay Node Placement in Heterogeneous Wireless Sensor Networks
— Existing work on placing additional relay nodes in wireless sensor networks to improve network connectivity typically assumes homogeneous wireless sensor nodes with an identica...
Xiaofeng Han, Xiang Cao, Errol L. Lloyd, Chien-Chu...
DSN
2006
IEEE
16 years 25 days ago
Eventual Leader Election with Weak Assumptions on Initial Knowledge, Communication Reliability, and Synchrony
This paper considers the eventual leader election problem in asynchronous message-passing systems where an arbitrary number t of processes can crash (t < n, where n is the tota...
Antonio Fernández, Ernesto Jiménez, ...