796 search results - page 96 / 160 » Approximating the centroid is hard |
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
The growing nature of databases, and the flexibility inherent in the SQL query language that allows arbitrarily complex formulations, can result in queries that take inordinate am...
WISEC
2009
ACM
14 years 2 months ago
2009
ACM
Time synchronization in highly distributed wireless systems like sensor and ad hoc networks is extremely important in order to maintain a consistent notion of time throughout the ...
EDBT
2009
ACM
14 years 2 months ago
2009
ACM
There has been an explosion of hyperlinked data in many domains, e.g., the biological Web. Expressive query languages and effective ranking techniques are required to convert this...
APPROX
2009
Springer
14 years 2 months ago
2009
Springer
We study the maximization version of the fundamental graph coloring problem. Here the goal is to color the vertices of a k-colorable graph with k colors so that a maximum fraction ...
WINE
2005
Springer
14 years 1 months ago
2005
Springer
We study a model of path-vector routing in which nodes’ routing policies are based on subjective cost assessments of alternative routes. The routes are constrained by the requir...