6974 search results - page 236 / 1395 » Querying Semi-Structured Data |
DEXAW
1998
IEEE
14 years 19 days ago
1998
IEEE
Materialized views offer opportunities for significant performance gain in query evaluation by providing fast access to pre-computed data. The question of when and how to use a ma...
IADIS
2003
13 years 9 months ago
2003
Query formulation is an essential part of successful information retrieval. The challenges in formulating effective queries are emphasized in web information search, because the w...
ISCI
2008
13 years 8 months ago
2008
This paper considers the theory of database queries on the complex value data model with external functions. Motivated by concerns regarding query evaluation, we first identify re...
SIGMOD
2002
ACM
13 years 8 months ago
2002
ACM
Traditional query processors generate full, accurate query results, either in batch or in pipelined fashion. We argue that this strict model is too rigid for exploratory queries o...
CORR
2011
Springer
13 years 3 months ago
2011
Springer
—With the rise of XML as a standard for representing business data, XML data warehousing appears as a suitable solution for decision-support applications. In this context, it is ...