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VLDB
1997
ACM
165views Database» more  VLDB 1997»
15 years 11 months ago
DataGuides: Enabling Query Formulation and Optimization in Semistructured Databases
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...
Roy Goldman, Jennifer Widom
CSCW
1994
ACM
15 years 11 months ago
Session Management for Collaborative Applications
Session management systems for collaborative applications have required a great deal of reimplementation work by developers because they have been typically created on a case-by-c...
W. Keith Edwards
ACSAC
2000
IEEE
15 years 10 months ago
Dynamic Access Control through Petri Net Workflows
Access control is an important protection mechanism for information systems. An access control matrix grants subjects privileges to objects. Today, access control matrices are sta...
Konstantin Knorr
HICSS
1995
IEEE
82views Biometrics» more  HICSS 1995»
15 years 10 months ago
A graph-theoretic data model for genome mapping databases
Graphs are a natural foundation for genome map databases. Mapping and other genomic data can be clearly represented by graphs, and graphs can be stored in a database. Graphs are d...
Mark Graves, Ellen R. Bergeman, Charles B. Lawrenc...
WSC
2007
15 years 9 months ago
Expecting the unexpected: representing, reasoning about, and assessing construction project contingencies
Planning, scheduling and effective management of contingencies are crucial for the successful management of construction projects. In this paper we explore a mathematical represen...
G. Ryan Anderson, Nilufer Onder, Amlan Mukherjee