Limitations of Incremental Dynamic Programming
Limitations of Incremental Dynamic Programming
复制标题
增量动态规划的局限性
DOI:
10.1007/s00453-013-9747-6
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发表时间:
2013
期刊:
影响因子:
1.1
通讯作者:
S. Jukna
中科院分区:
文献类型:
--
作者:
S. Jukna
We consider so-called “incremental” dynamic programming algorithms, and are interested in the number of subproblems produced by them. The classical dynamic programming algorithm for the Knapsack problem is incremental, producesnKsubproblems andnK2relations (wires) between the subproblems, wherenis the number of items, andKis the knapsack capacity. We show that any incremental algorithm for this problem must produce aboutnKsubproblems, and that aboutnKlogKwires (relations between subproblems) are necessary. This holds even for the Subset-Sum problem. We also give upper and lower bounds on the number of subproblems needed to approximate the Knapsack problem. Finally, we show that the Maximum Bipartite Matching problem and the Traveling Salesman problem require exponential number of subproblems. The goal of this paper is to leverage ideas and results of boolean circuit complexity for proving lower bounds on dynamic programming.
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发表时间:
1998
期刊:
Electron. Colloquium Comput. Complex.
影响因子:
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期刊:
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影响因子:
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影响因子:
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