نتایج جستجو برای: nor an art
تعداد نتایج: 5817540 فیلتر نتایج به سال:
A compact formulation of the set of tours neither in a graph nor its complement is presented and illustrates a general methodology proposed for constructing polyhedral models of decision problems based upon permutations, projection and lifting techniques. Directed Hamilton tours on n vertex graphs are interpreted as (n-1)- permutations. Sets of extrema of Birkhoff polyhedra are mapped to tours ...
We investigate the problem of the reproducibility of keywordbased access systems to relational data. These systems address a challenging and important issue, i.e. letting users to access in natural language databases whose schema and instance are possibly unknown. However, neither there are shared implementations of state-of-the-art algorithms nor experimental results are easily replicable. We ...
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