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LICS
1999
IEEE
14 years 2 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
HPDC
1998
IEEE
14 years 2 months ago
Authorization for Metacomputing Applications
One of the most difficult problems to be solved by metacomputing systems is to ensure strong authentication and authorization. The problem is complicated since the hosts involved ...
G. Gheorghiu, Tatyana Ryutov, B. Clifford Neuman
PODS
1997
ACM
149views Database» more  PODS 1997»
14 years 2 months ago
Answering Recursive Queries Using Views
We consider the problem of answering datalog queries using materialized views. The ability to answer queries using views is crucial in the context of information integration. Prev...
Oliver M. Duschka, Michael R. Genesereth
AUTOMATICA
1999
82views more  AUTOMATICA 1999»
13 years 9 months ago
Controllers for reachability specifications for hybrid systems
The problem of systematically synthesizing hybrid controllers which satisfy multiple control objectives is considered. We present a technique, based on the principles of optimal c...
John Lygeros, Claire Tomlin, Shankar Sastry
COLT
2010
Springer
13 years 8 months ago
Forest Density Estimation
We study graph estimation and density estimation in high dimensions, using a family of density estimators based on forest structured undirected graphical models. For density estim...
Anupam Gupta, John D. Lafferty, Han Liu, Larry A. ...