Optimal remote estimation over Action Dependent Switching Channels: Managing workload and bias of a human operator
Optimal remote estimation over Action Dependent Switching Channels: Managing workload and bias of a human operator
复制标题
通过动作相关切换通道进行最佳远程估计：管理操作员的工作量和偏差
DOI：
10.1109/acc.2015.7171820
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Brian M. Sadler
中科院分区：
文献类型：
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作者：
David Ward;N. C. Martins;Brian M. Sadler
考虑由信道和编码器形成的远程估计系统，该编码器评估表示为源的连续随机变量。信道的内部结构具有有限状态机（FSM），其状态决定传输特性。FSM的每个状态对应于离散无记忆信道（DMC）。在每个通道使用时，根据由当前FSM状态选择的DMC将信息从编码器传输到通道输出。这类通道被表示为动作相关切换通道，或ADS。动作反馈策略将通道的输出映射到FSM的输入。本文研究的方法来分析和设计的行动反馈政策和编码器，最小化的差分熵的源条件下的通道输出。我们发现，有最佳的动作反馈策略，输入到FSM是一个确定的序列，不依赖于信道输出。我们还提供了额外的结构结果的情况下，当FSM参数化一组二进制对称信道（BSC）具有不同的交叉概率。在这里，我们认为ADS包含无传输的状态，其被建模为BSC交叉概率的一半。在这种情况下，FSM还用于对由于多次传输而导致的信道降级进行建模，并且它还允许在没有传输时进行恢复。当切换DMC是BSC时，可以分别计算最优编码器和动作反馈策略。我们还讨论了该模型的相关性，在应用程序中，通道代表一个人的决策者，其可靠性和偏见的影响，当前和过去的输出。
Consider a remote estimation system formed by a channel and an encoder that assesses a continuous random variable denoted as source. The internal structure of the channel has a finite state machine (FSM) whose state dictates the transmission characteristics. Each state of the FSM corresponds to a discrete memoryless channel (DMC). At each channel use, information is transmitted from the encoder to the channel output according to the DMC selected by the current FSM state. This class of channels is denoted as Action Dependent Switching Channel, or ADS. An action feedback policy maps the channel's output into the input of the FSM. This paper investigates methods to analyze and design an action feedback policy and encoder that minimize the differential entropy of the source conditioned on the channel output. We show that there are optimal action feedback policies for which the input to the FSM is a deterministic sequence that does not depend on the channel output. We also provide additional structural results for the case when the FSM parametrizes a set of Binary Symmetric Channels (BSC) with differing crossover probabilities. Here, we consider that the ADS contains states of no transmission, which are modeled as a BSC crossover probability of one half. In this case, the FSM is also used to model channel degradation as a result of multiple transmissions, and it also allows for recovery when there are no transmissions. When the switching DMC is a BSC, the optimal encoder and action feedback policies can be computed separately. We also discuss the relevance of this model to applications in which the channel represents a human decision maker whose reliability and bias are affected by current and past outputs.
DOI：
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发表时间：
2008-12
期刊：
Advances in neural information processing systems
影响因子：
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作者：
Angela J. Yu;J. Cohen
通讯作者：
Angela J. Yu;J. Cohen
期望不会改变感知决策过程中的早期感觉处理。
DOI：
10.1523/jneurosci.3638-17.2018
发表时间：
2018
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
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作者：
Rungratsameetaweemana,Nuttida;Itthipuripat,Sirawaj;Salazar,Annalisa;Serences,JohnT
通讯作者：
Serences,JohnT