1231 search results - page 42 / 247 » Updatable Zero-Knowledge Databases |
ICDE
2005
IEEE
14 years 11 months ago
2005
IEEE
Large amounts of (often valuable) information are stored in web-accessible text databases. "Metasearchers" provide unified interfaces to query multiple such databases at...
IDEAS
2009
IEEE
14 years 4 months ago
2009
IEEE
This paper is concerned with a transformation-based approach to update propagation in an extended version of Codd’s relational algebra which allows for defining derived relatio...
CISM
1993
14 years 2 months ago
1993
The weak instance model is a framework to consider the relations in a database as a whole, regardless of the way attributes are grouped in the individual relations. Queries and upd...
DBKDA
2009
IEEE
14 years 1 months ago
2009
IEEE
Metadata harvesting requires timely propagation of up-to-date information from thousands of Repositories over a wide area network. It is desirable to keep the data as fresh as poss...
ICDT
1999
ACM
14 years 2 months ago
1999
ACM
Abstract. In this paper we consider databases representing information about moving objects (e.g. vehicles), particularly their location. We address the problems of updating and qu...