98 search results - page 14 / 20 » A Formal Model for the Problem of View Selection for Aggrega... |
27
Voted
WWW
2008
ACM
14 years 8 months ago
2008
ACM
In this paper we present a new document representation model based on implicit user feedback obtained from search engine queries. The main objective of this model is to achieve be...
LPNMR
2011
Springer
12 years 10 months ago
2011
Springer
Abstract. Multi-context systems are a formalism to interlink decentralized and heterogeneous knowledge based systems (contexts), which interact via (possibly nonmonotonic) bridge r...
TKDE
2002
13 years 7 months ago
2002
The construction and maintenance of data warehouses (views) in large-scale environments composed of numerous distributed and evolving information sources (ISs) such as the WWW has ...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
One of the critical deficiencies of SQL is lack of support for ndimensional array-based computations which are frequent in OLAP environments. Relational OLAP (ROLAP) applications ...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Consider multiple users searching for a hotel room, based on size, cost, distance to the beach, etc. Users may have variable preferences expressed by different weights on the attri...