664 search results - page 10 / 133 » Adaptive Selectivity Estimation Using Query Feedback |
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
In this paper we present a novel approach for estimating the selectivity of XML twig queries. Such a technique is useful for approximate query answering as well as for determining...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
The rich dependency structure found in the columns of real-world relational databases can be exploited to great advantage, but can also cause query optimizers--which usually assum...
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...
VLDB
2002
ACM
13 years 7 months ago
2002
ACM
Many modern database applications require content-based similarity search capability in numeric attribute space. Further, users' notion of similarity varies between search se...
ICIP
2007
IEEE
14 years 1 months ago
2007
IEEE
Retrieval in a multimedia database usually involves combining information from different modalities of data, such as text and images. However, all modalities of the data may not b...