Hierarchical task decomposition is a method used to break down complex tasks into smaller, more manageable subtasks organized in a hierarchical structure. This technique enhances the efficiency of problem-solving and planning by enabling systems to allocate resources effectively and manage tasks in a more organized way. It plays a significant role in improving robustness and fault tolerance by allowing systems to adjust to failures and maintain functionality, while also facilitating distributed problem-solving by allowing multiple agents to work on different subtasks simultaneously.
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