10412 search results - page 1507 / 2083 » The efficiency of algorithms - misconceptions |
167
click to vote
SIGMOD
2003
ACM
16 years 7 months ago
2003
ACM
While work in recent years has demonstrated that wavelets can be efficiently used to compress large quantities of data and provide fast and fairly accurate answers to queries, lit...
168
click to vote
PODS
2003
ACM
16 years 7 months ago
2003
ACM
In this paper we study the following problem. Given a database and a set of queries, we want to find, in advance, a set of views that can compute the answers to the queries, such ...
204
click to vote
EDBT
2004
ACM
16 years 7 months ago
2004
ACM
We study the problem of answering queries over sources with limited access patterns. The problem is to decide whether a given query Q is feasible, i.e., equivalent to an executable...
179
click to vote
MOBIHOC
2005
ACM
16 years 6 months ago
2005
ACM
In this paper, we investigate the use of limited infrastructure, in the form of wires, for improving the energy efficiency of a wireless sensor network. We call such a sensor netw...
203
click to vote
DCC
2004
IEEE
16 years 6 months ago
2004
IEEE
This paper presents an algorithm to optimize the tradeoff between rate and expected end-to-end distortion of a video sequence transmitted over a packet network. The approach optim...