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Summary of Navigating Trade-offs: Policy Summarization For Multi-objective Reinforcement Learning, by Zuzanna Osika et al.


by Zuzanna Osika, Jazmin Zatarain-Salazar, Frans A. Oliehoek, Pradeep K. Murukannaiah

First submitted to arxiv on: 7 Nov 2024

Categories

  • Main: Artificial Intelligence (cs.AI)
  • Secondary: Machine Learning (cs.LG)

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GrooveSquid.com Paper Summaries

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
In this research paper, the authors employ Multi-objective reinforcement learning (MORL) to tackle complex problems involving multiple goals. The MORL agent must balance diverse signals from distinct reward functions to make informed decisions. By training an MORL agent, the researchers obtain a set of policies, each showcasing unique trade-offs among objectives. This approach improves explainability by allowing for fine-grained comparisons between policies based on their objective values rather than relying on a single policy. However, the resulting solution set is typically large and multi-dimensional, comprising policies represented by their objective values.
Low GrooveSquid.com (original content) Low Difficulty Summary
The paper uses Multi-objective reinforcement learning (MORL) to solve problems with multiple objectives. This means the agent has to make decisions based on different rewards. The researchers train an MORL agent and get a set of solutions (policies). Each policy shows how good or bad it is at balancing the different goals. MORL makes it easier to understand why some policies are better than others. But, the set of solutions can be very big and hard to work with.

Keywords

* Artificial intelligence  * Reinforcement learning