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DEXAW
1999
IEEE
14 years 3 months ago
1999
IEEE
Distributed systems using mobile computing do not have the traditional ACID properties (Atomicity, Consistency, Isolation and Durability), and, therefore, consistency problems may...
DEXAW
1998
IEEE
14 years 3 months ago
1998
IEEE
This paper presents a first step towards a security model that defines access control for logical document structures. el benefits from roles to abstract from users and from secur...
VISUAL
1999
Springer
14 years 3 months ago
1999
Springer
This paper describes the application of techniques derived from text retrieval research to the content-based querying of image databases. Speci cally, the use of inverted les, fre...
COOPIS
1994
IEEE
14 years 2 months ago
1994
IEEE
We introduce query-free information retrieval, a paradigm in which queries are constructed autonomously and information relevant to a user is offered without explicit request. Que...
VLDB
1994
ACM
14 years 2 months ago
1994
ACM
Full-text information retrieval systems have traditionally been designed for archival environments. They often provide little or no support for adding new documents to an existing...