Title
Analysis of Search Decision Making Using Probabilistic Search Strategies
Abstract
In this paper, we propose a formulation of the spatial search problem, where a mobile searching agent seeks to locate a stationary target in a given search region or declare that the target is absent. The objective is to minimize the expected time until this search decision of target’s presence (and location) or absence is made. Bayesian update expressions for the integration of observations, including false-positive and false-negative detections, are derived to facilitate both theoretical and numerical analyses of various computationally efficient (semi-)adaptive search strategies. Closed-form expressions for the search decision evolution and analytic bounds on the expected time to decision are provided under assumptions on search environment and/or sensor characteristics. Simulation studies validate the probabilistic search formulation and comparatively demonstrate the effectiveness of the proposed search strategies.
Year
DOI
Venue
2012
10.1109/TRO.2011.2170333
IEEE Transactions on Robotics
Keywords
Field
DocType
Search problems,Robot sensing systems,Aggregates,Probabilistic logic,Bayesian methods,Trajectory
Data mining,Incremental heuristic search,Search algorithm,Guided Local Search,Expression (mathematics),Search theory,Beam search,Artificial intelligence,Probabilistic logic,Best-first search,Machine learning,Mathematics
Journal
Volume
Issue
ISSN
28
1
1552-3098
Citations 
PageRank 
References 
28
1.26
20
Authors
2
Name
Order
Citations
PageRank
Timothy H. Chung146536.31
Burdick, J.W.22988516.87