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KR
1998
Springer
15 years 10 months ago
AOL: A logic of Acting, Sensing, Knowing, and Only Knowing
This work is motivated by the existence of two useful but quite different knowledge representation formalisms, the situation calculus due to McCarthy, and the logic OL of only kno...
Gerhard Lakemeyer, Hector J. Levesque
IPPS
1997
IEEE
15 years 10 months ago
Optimizing Parallel Bitonic Sort
Sorting is an important component of many applications, and parallel sorting algorithms have been studied extensively in the last three decades. One of the earliest parallel sorti...
Mihai F. Ionescu
FOCS
1994
IEEE
15 years 10 months ago
A Spectral Approach to Lower Bounds
We establish a nonlinear lower bound for halfplane range searching over a group. Specifically, we show that summing up the weights of n (weighted) points within n halfplanes requir...
Bernard Chazelle
RULES
1993
Springer
159views Database» more  RULES 1993»
15 years 10 months ago
Implementing Relationships and Constraints in an Object-Oriented Database Using a Monitor Construct
Semantic models have shown the utility of arbitrary user-de ned relationships for de ning the semantics of database information, while objectoriented models have developed a stron...
Michael Doherty, Joan Peckham, Victor Fay Wolfe
DILS
2004
Springer
15 years 10 months ago
An Ontology-Driven Framework for Data Transformation in Scientific Workflows
Abstract. Ecologists spend considerable effort integrating heterogeneous data for statistical analyses and simulations, for example, to run and test predictive models. Our research...
Shawn Bowers, Bertram Ludäscher