210 search results - page 25 / 42 » Complex Group-By Queries for XML |
WIDM
2004
ACM
14 years 2 months ago
2004
ACM
In this paper, we propose a set of similarity metrics for manipulating collections of values occuring in XML documents. Following the data model presented in TAX algebra, we treat...
WWW
2010
ACM
14 years 3 months ago
2010
ACM
Web crawlers are increasingly used for focused tasks such as the extraction of data from Wikipedia or the analysis of social networks like last.fm. In these cases, pages are far m...
WWW
2005
ACM
14 years 9 months ago
2005
ACM
This paper addresses the problem of fast retrieval of data from XML documents by providing a labeling schema that can easily handle simple as well as complex XPATH queries and als...
ICDE
2007
IEEE
14 years 10 months ago
2007
IEEE
Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...
IS
2008
13 years 8 months ago
2008
Implementations that load XML documents and give access to them via, e.g., the DOM, suffer from huge memory demands: the space needed to load an XML document is usually many times...