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» Limiting Negations in Formulas
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TCS
2011
13 years 4 months ago
Limitations of self-assembly at temperature 1
We prove that if a set X ⊆ Z2 weakly self-assembles at temperature 1 in a deterministic (Winfree) tile assembly system satisfying a natural condition known as pumpability, then ...
David Doty, Matthew J. Patitz, Scott M. Summers
GG
2004
Springer
14 years 2 months ago
Representing First-Order Logic Using Graphs
We show how edge-labelled graphs can be used to represent first-order logic formulae. This gives rise to recursively nested structures, in which each level of nesting corresponds ...
Arend Rensink
RSA
2006
68views more  RSA 2006»
13 years 9 months ago
The probabilistic analysis of a greedy satisfiability algorithm
: On input a random 3-CNF formula of clauses-to-variables ratio r3 applies repeatedly the following simple heuristic: Set to True a literal that appears in the maximum number of cl...
Alexis C. Kaporis, Lefteris M. Kirousis, Efthimios...
IJCAI
2007
13 years 10 months ago
A New Perspective on Stable Models
The definition of a stable model has provided a declarative semantics for Prolog programs with negation as failure and has led to the development of answer set programming. In th...
Paolo Ferraris, Joohyung Lee, Vladimir Lifschitz
ISLPED
2000
ACM
97views Hardware» more  ISLPED 2000»
14 years 1 months ago
Achieving utility arbitrarily close to the optimal with limited energy
Energy is one of the limited resources for modern systems, especially the battery-operated devices and personal digital assistants. The backlog in new technologies for more powerf...
Gang Qu, Miodrag Potkonjak