620 search results - page 26 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
121
Voted
DBPL
1997
Springer
15 years 6 months ago
1997
Springer
We examine the power of incremental evaluation systems that use an SQL-like language for maintaining recursively-de ned views. We show that recursive queries such as transitive clo...
103
Voted
WWW
2006
ACM
16 years 3 months ago
2006
ACM
Contextual search refers to proactively capturing the information need of a user by automatically augmenting the user query with information extracted from the search context; for...
108
Voted
IS
2002
15 years 2 months ago
2002
In this paper, we explore the possibility of transforming queries with minimum and maximum predicates into equivalent queries that can be computed more efficiently. The main contr...
121
Voted
DOLAP
2000
ACM
15 years 7 months ago
2000
ACM
We consider the view maintenance problem in a web-based environment, in which clients query information from databases, stored in the form of materialized data warehouses, without...
148
Voted
DEXA
2011
Springer
14 years 2 months ago
2011
Springer
In this article we present RoSeS (Really Open Simple and Efficient Syndication), a generic framework for content-based RSS feed querying and aggregation. RoSeS is based on a data-...