Fast and Slow Planning

Authors: Francesco Fabiano, Vishal Pallagani, Marianna Bergamaschi Ganapini, Lior Horesh, Andrea Loreggia, Keerthiram Murugesan, Francesca Rossi, Biplav Srivastava

License: CC BY 4.0

Results of the summarizing process for the arXiv paper: 2303.04283v1

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In recent years, Artificial Intelligence (AI) has become increasingly prevalent in various aspects of our daily lives. To address the issue of AI-based systems lacking the capabilities that we would naturally associate with intelligence, a team of researchers developed an architecture inspired by D. Kahneman's cognitive theory known as Thinking Fast and Slow. This architecture is part of a broader AI paradigm called SOFAI (Slow and Fast AI), which utilizes multiple solving approaches with varying capabilities characterized as either fast or slow. It also includes a metacognitive module to regulate these approaches in order to reflect human reasoning processes according to D. Kahneman's theory. To evaluate the effectiveness of their new architecture, the team compared it with state-of-the-art solvers such as Fast Downward Helmert [2006] and EFP 2.0 Fabiano et al. [2020]. They conducted experiments on two distinct domains: Blocks-World (BW) domain for classical planning and Coin in the Box (CB) domain for multi-agent epistemic planning. The results showed that the newly introduced system presented better results in terms of generality, solving a wider set of problems with an acceptable trade-off between solving times and solution accuracy compared to state-of-the-art solvers. However, the team intends to explore ways to automatically tune the internal parameters of the architecture for optimal performance. In conclusion, this work presents a promising approach to enhancing AI-based planning systems' capabilities by incorporating cognitive theory and utilizing multiple solving approaches with a metacognitive module. The ongoing work aims to further refine and optimize this architecture for even better performance.
AI-generated keywords: Artificial Intelligence Thinking Fast and Slow SOFAI Blocks-World Coin in the Box

AI-generated Key Points

  • Artificial Intelligence (AI) is increasingly prevalent in our daily lives
  • AI-based systems lack natural intelligence capabilities
  • Researchers developed an architecture inspired by D. Kahneman's cognitive theory called Thinking Fast and Slow
  • The architecture is part of a broader AI paradigm called SOFAI (Slow and Fast AI)
  • SOFAI utilizes multiple solving approaches with varying capabilities characterized as either fast or slow, including a metacognitive module to regulate these approaches according to human reasoning processes
  • The team compared the new architecture with state-of-the-art solvers such as Fast Downward Helmert [2006] and EFP 2.0 Fabiano et al. [2020]
  • Experiments were conducted on two domains: Blocks-World (BW) domain for classical planning and Coin in the Box (CB) domain for multi-agent epistemic planning
  • The newly introduced system presented better results in terms of generality, solving a wider set of problems with an acceptable trade-off between solving times and solution accuracy compared to state-of-the-art solvers
  • The team intends to explore ways to automatically tune the internal parameters of the architecture for optimal performance
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Abstract: The concept of Artificial Intelligence has gained a lot of attention over the last decade. In particular, AI-based tools have been employed in several scenarios and are, by now, pervading our everyday life. Nonetheless, most of these systems lack many capabilities that we would naturally consider to be included in a notion of "intelligence". In this work, we present an architecture that, inspired by the cognitive theory known as Thinking Fast and Slow by D. Kahneman, is tasked with solving planning problems in different settings, specifically: classical and multi-agent epistemic. The system proposed is an instance of a more general AI paradigm, referred to as SOFAI (for Slow and Fast AI). SOFAI exploits multiple solving approaches, with different capabilities that characterize them as either fast or slow, and a metacognitive module to regulate them. This combination of components, which roughly reflects the human reasoning process according to D. Kahneman, allowed us to enhance the reasoning process that, in this case, is concerned with planning in two different settings. The behavior of this system is then compared to state-of-the-art solvers, showing that the newly introduced system presents better results in terms of generality, solving a wider set of problems with an acceptable trade-off between solving times and solution accuracy.

Submitted to arXiv on 07 Mar. 2023

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