Lifelong Learning Metrics
Authors: Alexander New, Megan Baker, Eric Nguyen, Gautam Vallabha
AI-generated Key Points
- The DARPA Lifelong Learning Machines (L2M) program aims to advance artificial intelligence (AI) systems by enabling them to continuously learn and improve.
- AI systems developed under the program can perform various functions, such as autonomous driving, real-time strategy, and drone simulation.
- Measuring system performance across different settings with diverse characteristics has been a challenge for the testing and evaluation team.
- A framework is provided in this document for evaluating AI systems' abilities to learn continuously while adapting to new tasks over time.
- The framework offers insights into how to design effective lifelong learning algorithms that can adapt to changing environments and improve performance over extended periods.
- This work could lead to significant advancements in AI systems capable of lifelong learning and adaptation.
Abstract: The DARPA Lifelong Learning Machines (L2M) program seeks to yield advances in artificial intelligence (AI) systems so that they are capable of learning (and improving) continuously, leveraging data on one task to improve performance on another, and doing so in a computationally sustainable way. Performers on this program developed systems capable of performing a diverse range of functions, including autonomous driving, real-time strategy, and drone simulation. These systems featured a diverse range of characteristics (e.g., task structure, lifetime duration), and an immediate challenge faced by the program's testing and evaluation team was measuring system performance across these different settings. This document, developed in close collaboration with DARPA and the program performers, outlines a formalism for constructing and characterizing the performance of agents performing lifelong learning scenarios.
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