777 search results - page 31 / 156 » Optimization of Relational Preference Queries |
TKDE
2008
13 years 8 months ago
2008
A major problem of current Web search is that search queries are usually short and ambiguous, and thus are insufficient for specifying the precise user needs. To alleviate this pro...
SIGECOM
2003
ACM
14 years 2 months ago
2003
ACM
Combinatorial auctions, where bidders can bid on bundles of items are known to be desirable auction mechanisms for selling items that are complementary and/or substitutable. Howev...
ER
2004
Springer
14 years 2 months ago
2004
Springer
In this paper we present a model of functional access to data that, we argue, is suitable for modeling a class of data repositories characterized by functional access, such as web ...
SIGMOD
2010
ACM
13 years 9 months ago
2010
ACM
An increasing number of applications operate on data obtained from the Web. These applications typically maintain local copies of the web data to avoid network latency in data acc...
ICDE
2007
IEEE
14 years 23 days ago
2007
IEEE
In this paper, we propose a simple and flexible execution model that (i) supports a wide spectrum of alternative optimization and execution strategies and their mixtures, (ii) pro...