The proposed search algorithm is relevant to the design of olfactory robots,
but the general idea of infotaxis can be applied more broadly in the context of searching with sparse information.
infotaxis:没有梯度搜索战略)
Chemotactic search strategies based on local concentration gradients require the concentration to be high enough to ensure that its average difference measured at two nearby locations is larger than typical fluctuations (see also Supplementary Information).
The signal-to-noise ratio depends of course on the averaging time and might be improved by waiting.
However, the average concentration may be decaying rapidly (for example, exponentially) with distance away from the source, and in this weak signal-to-noise (dilute) case the waiting time becomes huge.
An example of organisms performing olfactory search in a dilute limit is provided by moths which use pheromones to locate their mates .
Moths are known to proceed upwind by way of counterturning patterns of extended (casting’) or limited(‘zigzagging’) crosswind width, thought to correlate with low and high rates of odour detection. A practical situation involving the challenge of searching in dilute conditions is encountered in the design of ‘sniffers’---robots that track chemicals emitted by drugs, chemical leaks, explosives and mines. Existing methods apply to high-concentration conditions, where chemotoctic or plumetracking strategies might be used.
but infotaxis常规想法可以广泛地被申请在搜寻与稀稀落落的信息中。
infotaxis
Chemotactic根据地方浓度差的搜索策略要求集中是足够高保证它的平均区别被测量在二个附近的地点大于典型的波动(也参见补充情况)。 当然The信号噪音比取决于平均为的时间,并且也许经过等待改进。
However,平均集中也许迅速地腐朽(例如,按指数规律地)与远离来源的距离,并且在这个微弱的信号噪音比的(稀释)案件等待时间变得巨大。 在一个稀释极限使用费洛蒙找出他们的伙伴的飞蛾提供执行溴觉查寻的有机体的An例子。
Moths知道进行迎风通过延长(铸件¡ ¯)或有限的(¡ ®zigzagging的¡ ¯)侧风宽度,关联的想法的counterturning的样式与气味侦查的低和高速率。 介入搜寻的挑战一个实用情况在稀释情况在¡ ®sniffers ¡ ¯设计遇到 ---跟踪化学制品的机器人由药物、化工泄漏、炸药和矿散发了。 现有的方法适用于高集中情况,也许使用chemotoctic或plumetracking的战略。
你可能有单词拼错了
infotaxis :没有梯度搜索战略)
趋化搜索战略,根据当地的浓度梯度要求浓度足够高,以确保其平均差异测量两个地点附近大于典型的波动(见补充资料) 。
信号信噪比当然取决于平均时间和可以改进的等待。
然而,平均浓度可迅速衰减(例如,指数)的距离,从源头上,在这微弱的信号与噪声(稀)案件的轮候时间成为巨大的。
一个例子生物体表演嗅觉搜索限制在一个稀飞蛾提供使用信息素寻找同伴。
飞蛾被称为着手迎风的方式counterturning模式扩展(铸造' )或限制( '曲折' )侧宽度,认为相关的低和高利率的气味检测。一个实际情况,涉及的挑战,寻找稀条件是设计过程中遇到的' sniffers' ---机器人跟踪化学品排放的药品,
化学品泄漏,炸药和地雷。现有的方法适用于高浓度条件下,在chemotoctic或plumetracking战略可能使用。本回答被提问者采纳
but the general idea of infotaxis can be applied more broadly in the context of searching with sparse information.
infotaxis: no gradient search strategy)
Chemotactic search strategies based on local concentration gradients require the concentration to be high enough to ensure that its average difference measured at two nearby locations is larger than typical fluctuations (see also Supplementary Information).
The signal-to-noise ratio depends of course on the averaging time and might be improved by waiting.
However, the average concentration may be decaying rapidly (for example, exponentially) with distance away from the source, and in this weak signal-to-noise (dilute) case the waiting time becomes huge.
An example of organisms performing olfactory search in a dilute limit is provided by moths which use pheromones to locate their mates.
Moths are known to proceed upwind by way of counterturning patterns of extended (casting ') or limited (' zigzagging ') crosswind width, thought to correlate with low and high rates of odour detection. A practical situation involving the challenge of searching in dilute conditions is encountered in the design of 'sniffers' --- robots that track chemicals emitted by drugs, chemical leaks, explosives and mines. Existing methods apply to high-concentration conditions, where chemotoctic or plumetracking strategies might be used.