2859 search results - page 40 / 572 » Querying Complex Structured Databases |
AIIA
2007
Springer
14 years 2 months ago
2007
Springer
Relational database (DB) management systems provide the standard means for structuring and querying large amounts of data. However, to access such data the exact structure of the D...
SIGMOD
2006
ACM
14 years 8 months ago
2006
ACM
This paper introduces the Tuple Graph (TuG) synopses, a new class of data summaries that enable accurate selectivity estimates for complex relational queries. The proposed summari...
VLDB
1997
ACM
14 years 2 days ago
1997
ACM
In semistructured databases there is no schema fixed in advance. To provide the benefits of a schema in such environments, we introduce DataGuides: concise and accurate structural...
PODS
2001
ACM
14 years 8 months ago
2001
ACM
The need to search for complex and recurring patterns in database sequences is shared by many applications. In this paper, we discuss how to express and support efficiently sophis...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Abstract-- Inverted files have been very successful for document retrieval, but sponsored search is different. Inverted files are designed to find documents that match the query (a...