نتایج جستجو برای: sat f and sat
تعداد نتایج: 16866848 فیلتر نتایج به سال:
The augmenting path technique of matching theory is extended by adding some colour. As an application a SAT decision procedure for conjunctive normal forms is obtained, yielding polynomial time SAT decision in case the diierence c(F 0
Supplementary Figure 1: Repeat hypomethylation in ICF patients from families E, F and G (a, b) Sat-α methylation analysis using HhaI digestion followed by Southern blot analysis of healthy controls and patients 2.1 from family E and 2.2 from family F showed hypomethylation in the patient derived samples. (c) SatII (BstBI) and Sat-α (HhaI) methylation analysis by Southern blot analysis in DNA de...
In this paper, a new pre-processing step is proposed in the resolution of SAT instances, that recovers and exploits structural knowledge that is hidden in the CNF. It delivers an hybrid formula made of clauses together with a set of equations of the form y = f(x1, . . . , xn) where f is a standard connective operator among (∨, ∧, ⇔) and where y and xi are boolean variables of the initial SAT in...
We derive a worst upper bound on the number of models for exact satisfiability (XSAT) of arbitrary CNF formulas F. The bound can be calculated solely from the distribution of positive and negated literals in the formula. For certain subsets of CNF instances the new bound can be computed in subexponential time, namely in at most ( ) n O n , where n is the number of variables of F. A wider class ...
در تیوری محاسبات مسایل تصمیم گیری به دو دسته تصمیم پذیر و تصمیم ناپذیر تقسیم می شوند. یک مسیله تصمیم پذیر مسیله ای است که قابل حل باشد به این معنی که بتوان یک الگوریتم برای آن طراحی کرد، در غیر این صورت مسیله مورد نظر تصمیم ناپذیر خواهد بود. مسایل تصمیم پذیر به نوبه خود و با توجه به مرتبه زمانی حل خود به دسته های متفاوتی تقسیم می شوند. دسته ای از آنها مسایلی هستند که برای آنها الگوریتمی با مرتب...
Model counting is the task of computing the number of assignments to variables V that satisfy a given propositional theory F . The model counting problem is denoted as #SAT. Model counting is an essential tool in probabilistic reasoning. In this paper, we introduce the problem of model counting projected on a subset of original variables that we call priority variables P ⊆ V. The task is to com...
this study was conducted to investigate the effect of favorite-text on iranian intermediate efl learners’ vocabulary development. sixty learners from nour-al-mahdi english institute participated in the present study. having been homogenized by oxford placement test (opt), they were randomly assigned into two groups of 30, control and experimental. then both groups sat for a pre-test which was a...
Most symbolic model checkers are based on either Binary Decision Diagrams (BDDs), which may grow exponentially large, or Satisfiability (SAT) solvers, whose time requirements rapidly increase with the sequential depth of the circuit. We investigate the integration of BDD-based methods with SAT to speed up the verification of safety properties of the form G f , where f is either propositional or...
Model counting is the task of computing the number of assignments to variables V that satisfy a given propositional theory F . The model counting problem is denoted as #SAT. Model counting is an essential tool in probabilistic reasoning. In this paper, we introduce the problem of model counting projected on a subset of original variables that we call priority variables P ⊆ V. The task is to com...
An algorithm is presented for exactly solving (in fact, counting) the number of maximum weight satisfying assignments of a 2-SAT formula. The worst case running time of O(1.2461) for formulas with n variables improves on the previous bound of O(1.2561) by Dahllöf, Jonsson, and Wahlström. The weighted 2-SAT counting algorithm can be applied to obtain faster algorithms for combinatorial counting ...
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