Region4Web shows that shifting web agent observation to functional regions instead of element-level granularity produces shorter, more effective state representations and raises task success on WebArena across multiple LLMs and agent methods.
Purely decorative elements and isolated utility shortcuts belong to their parent’s region
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Region4Web: Rethinking Observation Space Granularity for Web Agents
Region4Web shows that shifting web agent observation to functional regions instead of element-level granularity produces shorter, more effective state representations and raises task success on WebArena across multiple LLMs and agent methods.