منابع مشابه
Boxes: A Symbolic Abstract Domain of Boxes
Numeric abstract domains are widely used in program analyses. The simplest numeric domains over-approximate disjunction by an imprecise join, typically yielding path-insensitive analyses. This problem is addressed by domain refinements, such as finite powersets, which provide exact disjunction. However, developing correct and efficient disjunctive refinement is challenging. First, there must be...
متن کاملBlack Boxes
The non-structure theorems we have discussed in Chapter III rests usually on some freedom on finite sequences and on a kind of order. When our freedom is related to infinite sequences, and to trees, our work is sometimes harder. In particular, we may consider, for λ ≥ χ, χ regular, and φ = φ(x̄0, . . . , x̄α, . . .)α<χ in a vocabulary τ : (∗) For any I ⊆ λ we have a τ–modelMI and sequences āη (fo...
متن کاملSolving Dots-And-Boxes
Dots-And-Boxes is a well-known and widely-played combinatorial game. While the rules of play are very simple, the state space for even very small games is extremely large, and finding the outcome under optimal play is correspondingly hard. In this paper we introduce a Dots-And-Boxes solver which is significantly faster than the current state-of-the-art: over an order-of-magnitude faster on seve...
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ژورنال
عنوان ژورنال: Nature
سال: 1989
ISSN: 0028-0836,1476-4687
DOI: 10.1038/338612c0