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arXiv · 1912.10316

Exploring TD error as a heuristic for $σ$ selection in Q($σ$, $λ$)

Abhishek Nan
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Abstract

In the landscape of TD algorithms, the Q($σ$, $λ$) algorithm is an algorithm with the ability to perform a multistep backup in an online manner while also successfully unifying the concepts of sampling with using the expectation across all actions for a state. $σ\in [0, 1]$ indicates the extent to which sampling is used. Selecting the value of σ can be based on characteristics of the current state rather than having a constant value or being time based. This report explores the viability of such a TD-error based scheme.

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Abhishek Nan. 2019-12-21. Exploring TD error as a heuristic for $σ$ selection in Q($σ$, $λ$). https://arxiv.org/abs/1912.10316

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