Simple and efficient bi-objective search algorithms via fast dominance checks

C Hernández, W Yeoh, JA Baier, H Zhang, L Suazo… - Artificial intelligence, 2023 - Elsevier
Many interesting search problems can be formulated as bi-objective search problems, that
is, search problems where two kinds of costs have to be minimized, for example, travel …

Enhanced multi-objective A* using balanced binary search trees

Z Ren, R Zhan, S Rathinam, M Likhachev… - Proceedings of the …, 2022 - ojs.aaai.org
This work addresses a Multi-Objective Shortest Path Problem (MO-SPP) on a graph where
the goal is to find a set of Pareto-optimal solutions from a start node to a destination in the …

Multi-objective path-based D* lite

Z Ren, S Rathinam, M Likhachev… - IEEE Robotics and …, 2022 - ieeexplore.ieee.org
Incrementalgraph search algorithms such as D* Lite reuse previous, and perhaps partial,
searches to expedite subsequent path planning tasks. In this article, we are interested in …

Bi-objective Search with Bi-directional A*

S Ahmadi, G Tack, DD Harabor, P Kilby - Proceedings of the …, 2021 - ojs.aaai.org
Bi-objective search is a problem of finding a set of optimal solutions in a two-dimensional
domain. This study proposes several enhancements to the state-of-the-art bi-objective …

Multi-objective safe-interval path planning with dynamic obstacles

Z Ren, S Rathinam, M Likhachev… - IEEE Robotics and …, 2022 - ieeexplore.ieee.org
Path planning among dynamic obstacles is a fundamental problem in Robotics with
numerous applications. In this work, we investigate a problem called Multi-Objective Path …

Subdimensional expansion for multi-objective multi-agent path finding

Z Ren, S Rathinam, H Choset - IEEE Robotics and Automation …, 2021 - ieeexplore.ieee.org
Conventional multi-agent path planners typically determine a path that optimizes a single
objective, such as path length. Many applications, however, may require multiple objectives …

A conflict-based search framework for multiobjective multiagent path finding

Z Ren, S Rathinam, H Choset - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Conventional multi-agent path planners typically compute an ensemble of paths while
optimizing a single objective, such as path length. However, many applications may require …

Targeted multiobjective Dijkstra algorithm

P Maristany de las Casas, L Kraus, A Sedeño‐Noda… - …, 2023 - Wiley Online Library
We introduce the Targeted Multiobjective Dijkstra Algorithm (T‐MDA), a label setting
algorithm for the One‐to‐One Multiobjective Shortest Path (MOSP) Problem. It is based on …

A* pex: Efficient approximate multi-objective search on graphs

H Zhang, O Salzman, TKS Kumar, A Felner… - Proceedings of the …, 2022 - ojs.aaai.org
In multi-objective search, edges are annotated with cost vectors consisting of multiple cost
components. A path dominates another path with the same start and goal vertices iff the …

Improving Bi-Objective Shortest Path Search with Early Pruning

L Mandow, JL Pérez de la Cruz - ECAI 2023, 2023 - ebooks.iospress.nl
Bi-objective search problems are a useful generalization of shortest path search. This paper
reviews some recent contributions for the solution of this problem with emphasis on the …