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CAV
2007
Springer
120views Hardware» more  CAV 2007»
15 years 9 months ago
Using Counterexamples for Improving the Precision of Reachability Computation with Polyhedra
Abstract. We present an extrapolation with care set operator to accelerate termination of reachability computation with polyhedra. At the same time, a counterexample guided refine...
Chao Wang, Zijiang Yang, Aarti Gupta, Franjo Ivanc...
CORR
2011
Springer
170views Education» more  CORR 2011»
14 years 10 months ago
On the Decidability of Connectedness Constraints in 2D and 3D Euclidean Spaces
We investigate (quantifier-free) spatial constraint languages with equality, contact and connectedness predicates, as well as Boolean operations on regions, interpreted over low-...
Roman Kontchakov, Yavor Nenov, Ian Pratt-Hartmann,...
AUIC
2000
IEEE
15 years 7 months ago
Evaluation of Animation Effects to Improve Indirect Manipulation
This paper describes an experiment we have conducted to explore the effectiveness of animation in improving indirect manipulation operations. Indirect manipulation operations are ...
Bruce H. Thomas, Victor Demczuk
SIGMOD
1999
ACM
94views Database» more  SIGMOD 1999»
15 years 7 months ago
Logical Logging to Extend Recovery to New Domains
Recovery can be extended to new domains at reduced logging cost by exploiting "logical" log operations. During recovery, a logical log operation may read data values fro...
David B. Lomet, Mark R. Tuttle
CJ
2006
111views more  CJ 2006»
15 years 3 months ago
Relational Formalism for the Management of Spatial Data
Operations on spatial objects have much individuality. As a consequence, the spatial data modelling approaches, which have been proposed, have to consider either data types of the...
Nikos A. Lorentzos, Jose Ramon Rios Viqueira