Sciweavers

1778 search results - page 202 / 356
» The Theory of Probabilistic Databases
Sort
View
SIGMOD
1999
ACM
94views Database» more  SIGMOD 1999»
15 years 9 months ago
Logical Logging to Extend Recovery to New Domains
Recovery can be extended to new domains at reduced logging cost by exploiting "logical" log operations. During recovery, a logical log operation may read data values fro...
David B. Lomet, Mark R. Tuttle
DMS
2008
106views Multimedia» more  DMS 2008»
15 years 6 months ago
A Multimedia Data Streams Model for Content-based Information Retrieval
: Multimedia applications nowadays are becoming the standard, for they utilize the enormous human brain computational power. In the past, the Relational Database Model was generali...
Shenoda Guirguis, Rohit Kulkarni, Shi-Kuo Chang
OWLED
2008
15 years 6 months ago
Enhancing Web Portals with Ontology-Based Data Access: The Case Study of South Africa's Accessibility Portal for People with Dis
Abstract. Web portal software is relatively easy to set up and populate from the perspective of the end-user, but it leaves the back-end database devoid of subject domain semantics...
C. Maria Keet, Ronell Alberts, Aurona Gerber, Gibs...
PR
2002
88views more  PR 2002»
15 years 4 months ago
Indexing chromatic and achromatic patterns for content-based colour image retrieval
In this paper, we present a method to represent achromatic and chromatic image signals independently for content-based image indexing and retrieval for image database applications...
Guoping Qiu
VLDB
2011
ACM
245views Database» more  VLDB 2011»
14 years 11 months ago
Normalization and optimization of schema mappings
Schema mappings are high-level specifications that describe the relationship between two database schemas. They are an important tool in several areas of database research, notab...
Georg Gottlob, Reinhard Pichler, Vadim Savenkov