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» The Nature Of Near-Synonymic Relations
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LICS
1999
IEEE
15 years 5 months ago
First-Order Logic vs. Fixed-Point Logic in Finite Set Theory
The ordered conjecture states that least fixed-point logic LFP is strictly more expressive than first-order logic FO on every infinite class of ordered finite structures. It has b...
Albert Atserias, Phokion G. Kolaitis
FSTTCS
1999
Springer
15 years 5 months ago
Hoare Logic for Mutual Recursion and Local Variables
We present a (the rst?) sound and relatively complete Hoare logic for a simple imperative programming language including mutually recursive procedures with call-by-value parameters...
David von Oheimb
GIS
1999
ACM
15 years 5 months ago
Spatial Data Integrity Constraints in Object Oriented Geographic Data Modeling
An important activity in the design of a particular database application consists in identifying the integrity constraints that must hold on the database, and that are used to det...
Karla A. V. Borges, Alberto H. F. Laender, Clodove...
ICLP
1999
Springer
15 years 5 months ago
Event, Property, and Hierarchy in Order-Sorted Logic
Knowledge representation in logics, even in the order-sorted logic that includes a sort hierarchy, tends to lose the conciseness and the nuances of natural language. If we could c...
Ken Kaneiwa, Satoshi Tojo
IFIP
1999
Springer
15 years 5 months ago
Assessing Instructional Technology
: In a relatively short period of time, educational technology has become a basic component of the instructional life of almost every College or University around the world. The wa...
Lawrence M. Baldwin, Panagiotis Takis Metaxas, Win...