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Guang-Zhe Zhang

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#artificial intelligence Preprint Sep 2026

Completed Pairs Hide Capped Failures: A ReVerPi Case Study of Selective Context Projection

Context projection replaces older tool observations with compact, addressable excerpts, reducing repeated input while potentially adding evidence-retrieval turns. We study this trade-off in ReVerPi, a Pi extension with archived observations and matched full/projected continuations. In an 86-run source-reading campaign...

Guang-Zhe Zhang · 0 citations

#artificial intelligence Preprint Sep 2026

Correct Now, Insufficient Later: Auditing Update Sufficiency in Context Compression

A memory can answer a current query correctly while discarding distinctions required by a later update. We investigate this failure with a paired-history audit: two histories have the same current answer, receive a shared future update, and require different subsequent answers. A pilot evaluates 24 history pairs across...

Guang-Zhe Zhang · 0 citations