Sciweavers

4894 search results - page 938 / 979
» The Guarding Problem - Complexity and Approximation
Sort
View
STOC
2007
ACM
140views Algorithms» more  STOC 2007»
14 years 8 months ago
On the submodularity of influence in social networks
We prove and extend a conjecture of Kempe, Kleinberg, and Tardos (KKT) on the spread of influence in social networks. A social network can be represented by a directed graph where...
Elchanan Mossel, Sébastien Roch
OSDI
2008
ACM
14 years 8 months ago
R2: An Application-Level Kernel for Record and Replay
Library-based record and replay tools aim to reproduce an application's execution by recording the results of selected functions in a log and during replay returning the resu...
Zhenyu Guo, Xi Wang, Jian Tang, Xuezheng Liu, Zhil...
ICALP
2009
Springer
14 years 8 months ago
Elimination Graphs
A graph is chordal if it does not contain any induced cycle of size greater than three. An alternative characterization of chordal graphs is via a perfect elimination ordering, whi...
Yuli Ye, Allan Borodin
SIGMOD
2009
ACM
235views Database» more  SIGMOD 2009»
14 years 8 months ago
Quality and efficiency in high dimensional nearest neighbor search
Nearest neighbor (NN) search in high dimensional space is an important problem in many applications. Ideally, a practical solution (i) should be implementable in a relational data...
Yufei Tao, Ke Yi, Cheng Sheng, Panos Kalnis
SIGMOD
2007
ACM
165views Database» more  SIGMOD 2007»
14 years 7 months ago
Statistical analysis of sketch estimators
Sketching techniques can provide approximate answers to aggregate queries either for data-streaming or distributed computation. Small space summaries that have linearity propertie...
Florin Rusu, Alin Dobra