Probabilistic Plan Recognition for Proactive Assistant Agents

Jean Oh, Felipe Meneguzzi, Katia Sycara

Research output: Chapter in Book/Report/Conference proceedingChapter

8 Citations (Scopus)


Human users dealing with multiple objectives in a complex environment (e.g., military planners or emergency response operators) are subject to a high level of cognitive workload. When this load becomes an overload, it can severely impair the quality of the plans created. To address these issues, intelligent assistant systems have been rigorously studied in both the artificial intelligence (AI) and the intelligent systems research communities. This chapter discusses proactive assistant systems, which predict future user activities that can be facilitated by the assistant. We focus on problems in which a user is solving a complex problem with uncertainty, and thus on plan-recognition algorithms suitable for the target problem domain. Specifically, we discuss a generative model of plan recognition that represents user activities as an integrated planning and execution problem. We describe a proactive assistant agent architecture and its applications in practical problems including emergency response and military peacekeeping operations.
Original languageEnglish
Title of host publicationPlan, Activity, and Intent Recognition
Subtitle of host publicationTheory and Practice
PublisherElsevier Science
Number of pages14
ISBN (Print)978-0123985323
Publication statusPublished - 2014


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