Weak Estimator-Based Stochastic Searching on the Line in Dynamic Dual Environments

Jun Qi Zhang, Peng Zhan Qiu, Chun Hui Wang, Meng Chu Zhou

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Stochastic point location deals with the problem of finding a target point on a real line through a learning mechanism (LM) with the stochastic environment (SE) offering directional information. The SE can be further categorized into an informative or deceptive one, according to whether ${p}$ is above 0.5 or not, where ${p}$ is the probability of providing a correct suggestion of a direction to LM. Several attempts have been made for LM to work in both types of environments, but none of them considers a dynamically changing environment where ${p}$ varies with time. A dynamic dual environment involves fierce changes that frequently cause its environment to switch from an informative one to a deceptive one, or vice versa. This article presents a novel weak estimator-based adaptive step search solution, to enable LM to track the target in a dynamic dual environment, with the help of a weak estimator. The experimental results show that the proposed solution is feasible and efficient.

Original languageEnglish (US)
Pages (from-to)6109-6118
Number of pages10
JournalIEEE Transactions on Cybernetics
Issue number7
StatePublished - Jul 1 2022

All Science Journal Classification (ASJC) codes

  • Software
  • Control and Systems Engineering
  • Information Systems
  • Human-Computer Interaction
  • Computer Science Applications
  • Electrical and Electronic Engineering


  • Learning mechanism (LM)
  • machine learning
  • optimization
  • stochastic environment (SE)
  • stochastic point location (SPL)
  • weak estimator


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