Zhuofeng Li
1 indexed paper
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126
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NLP×1AI×1Info Retrieval×1
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2026
Masking Stale Observations Helps Search Agents -- Until It Doesn't: A Regime Map and Its Mechanism
The paper analyzes observation masking in long-horizon search agents, finding that its effectiveness depends on a complex interaction between the model's capacity and the retriever's strength, exhibiting an inverted-U shaped gain.
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Papers
cs.CLcs.AIcs.IRRecentMay 29, 2026
Masking Stale Observations Helps Search Agents -- Until It Doesn't: A Regime Map and Its Mechanism
Haoxiang Zhang, Qixin Xu, Zhuofeng Li, Lei Zhang +3 more
The paper analyzes observation masking in long-horizon search agents, finding that its effectiveness depends on a complex interaction between the model's capacity and the retriever's strength, exhibit…
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