Search Results for author: Pavel Surynek

Found 22 papers, 3 papers with code

Counterexample Guided Abstraction Refinement with Non-Refined Abstractions for Multi-Agent Path Finding

no code implementations20 Jan 2023 Pavel Surynek

Counterexample guided abstraction refinement (CEGAR) represents a powerful symbolic technique for various tasks such as model checking and reachability analysis.

Multi-Agent Path Finding Navigate

Heuristically Guided Compilation for Multi-Agent Path Finding

no code implementations13 Dec 2022 Pavel Surynek

Multi-agent path finding (MAPF) is a task of finding non-conflicting paths connecting agents' specified initial and goal positions in a shared environment.

Multi-Agent Path Finding

Plan Execution for Multi-Agent Path Finding with Indoor Quadcopters

no code implementations5 Jul 2022 Matouš Kulhan, Pavel Surynek

We study the planning and acting phase for the problem of multi-agent path finding (MAPF) in this paper.

Multi-Agent Path Finding

DPLL(MAPF): an Integration of Multi-Agent Path Finding and SAT Solving Technologies

no code implementations11 Nov 2021 Martin Čapek, Pavel Surynek

Contemporary SAT-based approaches to MAPF regard the SAT solver as an external tool whose task is to return an assignment of all decision variables of a Boolean model of input MAPF.

Multi-Agent Path Finding

Near Optimal Solving of the (N2-1)-puzzle Using Heuristics Based on Artificial Neural Networks

1 code implementation International Joint Conference on Computational Intelligence (IJCCI) 2021 Vojtech Cahlik, Pavel Surynek

The A* search algorithm explores configurations of the puzzle in the order determined by a heuristic that tries to estimate the minimum number of moves needed to reach the goal from the given configuration.

Compilation-based Solvers for Multi-Agent Path Finding: a Survey, Discussion, and Future Opportunities

no code implementations23 Apr 2021 Pavel Surynek

Multi-agent path finding (MAPF) attracts considerable attention in artificial intelligence community as well as in robotics, and other fields such as warehouse logistics.

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Sparsification for Fast Optimal Multi-Robot Path Planning in Lazy Compilation Schemes

no code implementations8 Mar 2021 Pavel Surynek

Path planning for multiple robots (MRPP) represents a task of finding non-colliding paths for robots through which they can navigate from their initial positions to specified goal positions.

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Multi-Goal Multi-Agent Path Finding via Decoupled and Integrated Goal Vertex Ordering

no code implementations10 Sep 2020 Pavel Surynek

We introduce multi-goal multi agent path finding (MAPF$^{MG}$) which generalizes the standard discrete multi-agent path finding (MAPF) problem.

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At-Most-One Constraints in Efficient Representations of Mutex Networks

1 code implementation10 Jun 2020 Pavel Surynek

The AMO constraint can be used for more efficient representation and problem solving in mutex networks consisting of pair-wise mutual exclusions forbidding pairs of Boolean variable to be simultaneously TRUE.

Pushing the Envelope: From Discrete to Continuous Movements in Multi-Agent Path Finding via Lazy Encodings

no code implementations25 Apr 2020 Pavel Surynek

Multi-agent path finding in continuous space and time with geometric agents MAPF$^\mathcal{R}$ is addressed in this paper.

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On the Tour Towards DPLL(MAPF) and Beyond

no code implementations11 Jul 2019 Pavel Surynek

The integration of satisfiability testing by the SAT solver and the high-level construction of the encoding is however relatively loose in existing methods.

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Multi-agent Path Finding with Continuous Time Viewed Through Satisfiability Modulo Theories (SMT)

no code implementations23 Mar 2019 Pavel Surynek

Each time a new conflict is discovered, the underlying encoding is extended with new variables and constraints to eliminate the conflict.

Multi-Agent Path Finding

A Summary of Adaptation of Techniques from Search-based Optimal Multi-Agent Path Finding Solvers to Compilation-based Approach

no code implementations28 Dec 2018 Pavel Surynek

Search-based solvers were developed and tested for the sum-of-costs objective while the most prominent compilation-based solvers that are built around Boolean satisfiability (SAT) were designed for the makespan objective.

Multi-Agent Path Finding

Lazy Modeling of Variants of Token Swapping Problem and Multi-agent Path Finding through Combination of Satisfiability Modulo Theories and Conflict-based Search

no code implementations16 Sep 2018 Pavel Surynek

The key difference between the standard CBS and our SMT-based modification of CBS (SMT-CBS) is that the standard CBS branches the search to resolve the collision while in SMT-CBS we iteratively add a single disjunctive collision resolution constraint.

Multi-Agent Path Finding

Finding Optimal Solutions to Token Swapping by Conflict-based Search and Reduction to SAT

no code implementations25 Jun 2018 Pavel Surynek

The goal is to perform a sequence of swaps so that token and vertex colors agree across the graph.

Multi-Agent Path Finding

Maintaining Ad-Hoc Communication Network in Area Protection Scenarios with Adversarial Agents

no code implementations4 Sep 2017 Marika Ivanová, Pavel Surynek, Diep Thi Ngoc Nguyen

We address a problem of area protection in graph-based scenarios with multiple mobile agents where connectivity is maintained among agents to ensure they can communicate.

Makespan Optimal Solving of Cooperative Path-Finding via Reductions to Propositional Satisfiability

no code implementations18 Oct 2016 Pavel Surynek

The problem of makespan optimal solving of cooperative path finding (CPF) is addressed in this paper.

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