نتایج جستجو برای: depth first search

تعداد نتایج: 1814173  

2015
Tudor Bălănescu Huiling Wu

In this paper, the authors propose a new approach to fully asynchronous P systems, and a matching complexity measure, both inspired from the field of distributed algorithms. The authors validate the proposed approach by implementing several well-known distributed depth-first search (DFS) and breadth-first search (BFS) algorithms. Empirical results show that the proposed P algorithms have shorte...

Journal: :Inf. Process. Lett. 1994
Zeev Collin Shlomi Dolev

A distributed algorithm is self-stabilizing if it can be started from any possible global state. Once started, the algorithm converges to a consistent global state by itself. This paper presents a distributed self-stabilizing Depth First Search (DFS) spanning tree algorithm, whose output is a DFS spanning tree of the communication graph, kept in a distributed fashion.

1996
Gerard J. Holzmann Doron A. Peled Mihalis Yannakakis

We show in this paper that the algorithm for solving the model checking problem with a nested depth-first search can interfere with algorithms that support partial order reduction. We introduce a revised version of the algorithm that guarantees compatibility. The change also improves the performance of the nested depth-first search algorithm when partial order reduction is not used.

2000
J. Christopher Beck Laurent Perron

In this paper, we present a novel discrepancy-based search technique implemented as an instance of the generic search procedures framework introduced in [10]. Our empirical results indicate that the Discrepancy-Bounded Depth First Search (DBDFS) procedure exhibits a number of good properties. As a discrepancy based search technique, it is able to quickly find solution with low deviation from th...

Journal: :CoRR 2017
Shantanu Das Dariusz Dereniowski Przemyslaw Uznanski

Depth first search is a natural algorithmic technique for constructing a closed route that visits all vertices of a graph. The length of such route equals, in an edge-weighted tree, twice the total weight of all edges of the tree and this is asymptotically optimal over all exploration strategies. This paper considers a variant of such search strategies where the length of each route is bounded ...

2000
Eyke Hüllermeier

The order in which nodes are explored in a (depth-first) iterative deepening search strategy is principally determined by the condition under which a path of the search tree is cut off in each search phase. A corresponding criterion, which has a strong influence on the performance of the overall (heuristic) search procedure, is generally realized in the form of an upper cost bound. In this pape...

2015
Bruno Bouzy

In this paper, we present an experimental investigation on the pancake problem. Also called sorting by prefix reversals (SBPR), this problem is linked to the genome rearrangement problem also called sorting by reversals (SBR). The pancake problem is a NP-hard problem. Until now, the best theoretical R-approximation was 2 with an algorithm which gives a 1.22 experimental R-approximation on stack...

Journal: :Artif. Intell. 1985
Richard E. Korf

The complexities of various search algorithms are considered in terms of time, space, and cost of solution path. I t is known that breadth-first search requires too much space and depth-first search can use too much time and doesn't always find a cheapest path. A depth-first iteratiw-deepening algorithm is shown to be asymptotically optimal along all three dimensions for exponential pee searche...

Journal: :Journal of Combinatorial Theory, Series A 1979

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