Search Results for author: Roni Stern

Found 20 papers, 6 papers with code

Optimal and Bounded Suboptimal Any-Angle Multi-agent Pathfinding

no code implementations25 Apr 2024 Konstantin Yakovlev, Anton Andreychuk, Roni Stern

Multi-agent pathfinding (MAPF) is the problem of finding a set of conflict-free paths for a set of agents.

Safe Learning of PDDL Domains with Conditional Effects -- Extended Version

no code implementations22 Mar 2024 Argaman Mordoch, Enrico Scala, Roni Stern, Brendan Juba

We prove that learning non-trivial safe action models with conditional effects may require an exponential number of samples.

Enhancing Numeric-SAM for Learning with Few Observations

no code implementations17 Dec 2023 Argaman Mordoch, Shahaf S. Shperberg, Roni Stern, Berndan Juba

It runs in polynomial time and is guaranteed to output an action model that is safe, in the sense that plans generated by it are applicable and will achieve their intended goals.

A Domain-Independent Agent Architecture for Adaptive Operation in Evolving Open Worlds

no code implementations9 Jun 2023 Shiwali Mohan, Wiktor Piotrowski, Roni Stern, Sachin Grover, Sookyung Kim, Jacob Le, Johan de Kleer

Model-based reasoning agents are ill-equipped to act in novel situations in which their model of the environment no longer sufficiently represents the world.

Visual Reasoning

Heuristic Search For Physics-Based Problems: Angry Birds in PDDL+

no code implementations29 Mar 2023 Wiktor Piotrowski, Yoni Sher, Sachin Grover, Roni Stern, Shiwali Mohan

This paper studies how a domain-independent planner and combinatorial search can be employed to play Angry Birds, a well established AI challenge problem.

Learning to Operate in Open Worlds by Adapting Planning Models

no code implementations24 Mar 2023 Wiktor Piotrowski, Roni Stern, Yoni Sher, Jacob Le, Matthew Klenk, Johan deKleer, Shiwali Mohan

Planning agents are ill-equipped to act in novel situations in which their domain model no longer accurately represents the world.

Reinforcement Learning (RL)

An Example of the SAM+ Algorithm for Learning Action Models for Stochastic Worlds

no code implementations23 Mar 2022 Brendan Juba, Roni Stern

In this technical report, we provide a complete example of running the SAM+ algorithm, an algorithm for learning stochastic planning action models, on a simplified PPDDL version of the Coffee problem.

Playing Angry Birds with a Domain-Independent PDDL+ Planner

no code implementations9 Jul 2021 Wiktor Piotrowski, Roni Stern, Matthew Klenk, Alexandre Perez, Shiwali Mohan, Johan de Kleer, Jacob Le

This demo paper presents the first system for playing the popular Angry Birds game using a domain-independent planner.

Safe Learning of Lifted Action Models

1 code implementation9 Jul 2021 Brendan Juba, Hai S. Le, Roni Stern

However, model learning approaches frequently do not provide safety guarantees: the learned model may assume actions are applicable when they are not, and may incorrectly capture actions' effects.

Partial Disclosure of Private Dependencies in Privacy Preserving Planning

no code implementations14 Feb 2021 Rotem Lev Lehman, Guy Shani, Roni Stern

In collaborative privacy preserving planning (CPPP), a group of agents jointly creates a plan to achieve a set of goals while preserving each others' privacy.

Privacy Preserving

Improving Continuous-time Conflict Based Search

2 code implementations24 Jan 2021 Anton Andreychuk, Konstantin Yakovlev, Eli Boyarski, Roni Stern

Conflict-Based Search (CBS) is a powerful algorithmic framework for optimally solving classical multi-agent path finding (MAPF) problems, where time is discretized into the time steps.

Multi-Agent Path Finding

Anomaly Detection for Aggregated Data Using Multi-Graph Autoencoder

no code implementations11 Jan 2021 Tomer Meirman, Roni Stern, Gilad Katz

In this research, we present a thorough analysis of the aggregated data and the relationships between aggregated events.

Anomaly Detection

Revisiting Bounded-Suboptimal Safe Interval Path Planning

1 code implementation1 Jun 2020 Konstantin Yakovlev, Anton Andreychuk, Roni Stern

Safe-interval path planning (SIPP) is a powerful algorithm for finding a path in the presence of dynamic obstacles.

Bidding in Spades

1 code implementation24 Dec 2019 Gal Cohensius, Reshef Meir, Nadav Oved, Roni Stern

We present a Spades bidding algorithm that is superior to recreational human players and to publicly available bots.

Multi-Agent Pathfinding: Definitions, Variants, and Benchmarks

1 code implementation19 Jun 2019 Roni Stern, Nathan Sturtevant, Ariel Felner, Sven Koenig, Hang Ma, Thayne Walker, Jiaoyang Li, Dor Atzmon, Liron Cohen, T. K. Satish Kumar, Eli Boyarski, Roman Bartak

The MAPF problem is the fundamental problem of planning paths for multiple agents, where the key constraint is that the agents will be able to follow these paths concurrently without colliding with each other.

Autonomous Vehicles

Multi-Agent Pathfinding with Continuous Time

1 code implementation16 Jan 2019 Anton Andreychuk, Konstantin Yakovlev, Dor Atzmon, Roni Stern

Multi-Agent Pathfinding (MAPF) is the problem of finding paths for multiple agents such that every agent reaches its goal and the agents do not collide.

Efficient, Safe, and Probably Approximately Complete Learning of Action Models

no code implementations24 May 2017 Roni Stern, Brendan Juba

In this paper we explore the theoretical boundaries of planning in a setting where no model of the agent's actions is given.

Sequential Plan Recognition

no code implementations3 Mar 2017 Reuth Mirsky, Roni Stern, Ya'akov, Gal, Meir Kalech

The paper defines the sequential plan recognition process (SPRP), which seeks to reduce the number of hypotheses using a minimal number of queries.

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