An LP-Based Approach for Goal Recognition as Planning

Felipe Meneguzzi, Ramon Fraga Pereira, André G. Pereira, Luísa R. A. Santos

Research output: Chapter in Book/Report/Conference proceedingPublished conference contribution

11 Citations (Scopus)

Abstract

Goal recognition aims to recognize the set of candidate goals that are compatible with the observed behavior of an agent. In this paper, we develop a method based on the operatorcounting framework that efficiently computes solutions that satisfy the observations and uses the information generated to solve goal recognition tasks. Our method reasons explicitly about both partial and noisy observations: estimating uncertainty for the former, and satisfying observations given the unreliability of the sensor for the latter. We evaluate our approach empirically over a large data set, analyzing its components on how each can impact the quality of the solutions. In general, our approach is superior to previous methods in terms of agreement ratio, accuracy, and spread. Finally, our approach paves the way for new research on combinatorial optimization to solve goal recognition tasks.

Original languageEnglish
Title of host publication35th AAAI Conference on Artificial Intelligence (AAAI 2021)
Subtitle of host publicationVolume 13: AAAI Technical Tracks
PublisherAssociation for the Advancement of Artificial Intelligence
Pages11939-11946
Number of pages8
Volume35(13) Part 1
ISBN (Electronic)9781713835974
DOIs
Publication statusPublished - 18 May 2021
Event35th AAAI Conference on Artificial Intelligence, AAAI 2021 - Virtual, Online
Duration: 2 Feb 20219 Feb 2021

Publication series

Name35th AAAI Conference on Artificial Intelligence, AAAI 2021
Number13
Volume35
ISSN (Print)2159-5399
ISSN (Electronic)2374-3468

Conference

Conference35th AAAI Conference on Artificial Intelligence, AAAI 2021
CityVirtual, Online
Period2/02/219/02/21

Bibliographical note

Funding Information:
Felipe Meneguzzi acknowledges support from CNPq with projects 407058/2018-4 (Universal) and 302773/2019-3 (PQ Fellowship). André G. Pereira acknowledges support from FAPERGS with project 17/2551-0000867-7. This study was financed in part by the Coordenac¸ão de Aperfeic¸oamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001. Ramon Fraga Pereira acknowledges support from the ERC Advanced Grant WhiteMech (No. 834228) and the EU ICT-48 2020 project TAILOR (No. 952215).

Keywords

  • Activity and Plan Recognition

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