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SDB
1995
178views Database» more  SDB 1995»
15 years 10 months ago
A Semantics-based Approach to Design of Query Languages for Partial Information
Most of work on partial information in databases asks which operations of standard languages, like relational algebra, can still be performed correctly in the presence of nulls. In...
Leonid Libkin
SYNTHESE
2010
70views more  SYNTHESE 2010»
15 years 5 months ago
What ought probably means, and why you can't detach it
: Some intuitive normative principles raise vexing „detaching problems‟ by their failure to license modus ponens. I examine three such principles (a self-reliance principle and...
Stephen Finlay
BMCBI
2011
14 years 10 months ago
Computable visually observed phenotype ontological framework for plants
Background: The ability to search for and precisely compare similar phenotypic appearances within and across species has vast potential in plant science and genetic research. The ...
Jaturon Harnsomburana, Jason M. Green, Adrian S. B...
AIMS
2007
Springer
16 years 27 days ago
Harnessing Models for Policy Conflict Analysis
Policy conflict analysis processes based solely on the examination of policy language constructs can not readily discern the semantics associated with the managed system for which ...
Steven Davy, Brendan Jennings
WWW
2004
ACM
16 years 7 months ago
Visualising student tracking data to support instructors in web-based distance education
This paper presents a novel approach of using web log data generated by course management systems (CMS) to help instructors become aware of what is happening in distance learning ...
Riccardo Mazza, Vania Dimitrova