Intermittent search strategies
Intermittent search strategies
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DOI：
10.1103/revmodphys.83.81
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发表时间：
2011-03-28
影响因子：
44.1
通讯作者：
Voituriez, R.
中科院分区：
文献类型：
--
作者：
Benichou, O.;Loverdo, C.;Voituriez, R.
这篇综述探讨了间歇性目标搜索策略，该策略结合了慢速运动阶段（在此阶段搜索者能够探测到目标）和快速运动阶段（在此阶段无法探测到目标）。首先表明，间歇性搜索策略实际上在各种尺度上都被广泛观察到。在宏观尺度上，例如动物寻找食物的情况；在微观尺度上，间歇性运输模式存在于DNA结合蛋白的反应途径以及细胞内运输中。其次，引入了通用随机模型，这些模型表明间歇性策略是有效的策略，能够使搜索时间最小化。这表明间歇性搜索策略的内在效率可以解释它们在自然界中频繁被观察到的原因。最后，除了这些建模方面，还提出间歇性策略也可在更广泛的背景下用于设计和加速搜索过程。
This review examines intermittent target search strategies, which combine phases of slow motion, allowing the searcher to detect the target, and phases of fast motion during which targets cannot be detected. It is first shown that intermittent search strategies are actually widely observed at various scales. At the macroscopic scale, this is, for example, the case of animals looking for food; at the microscopic scale, intermittent transport patterns are involved in a reaction pathway of DNA-binding proteins as well as in intracellular transport. Second, generic stochastic models are introduced, which show that intermittent strategies are efficient strategies that enable the minimization of search time. This suggests that the intrinsic efficiency of intermittent search strategies could justify their frequent observation in nature. Last, beyond these modeling aspects, it is proposed that intermittent strategies could also be used in a broader context to design and accelerate search processes.