Online State Exploration: Competitive Worst Case and Learning-Augmented Algorithms

Sungjin Im, Benjamin Moseley, Chenyang Xu, Ruilong Zhang

Abstract: This paper introduces the online state exploration problem. In the problem, there is a hidden d-dimensional target state. We are given a distance function between different states in the space and a penalty function depending on the current state for each incorrect guess. The goal is to move to a vector that dominates the target state starting from the origin in the d-dimensional space while minimizing the total distance and penalty cost. This problem generalizes several natural online discrete optimization problems such as multi-dimensional knapsack cover, cow path, online bidding, and online search. For online state exploration, the paper gives results in the worst-case competitive analysis model and in the online algorithms augmented with the prediction model. The results extend and generalize many known results in the online setting.