arXiv AI By Jiahui Ning, Liang Chen, Yuchen Liang, Yi Zhang, Fenglei Fan

ACE-Compression: An Ability-Centric Evaluation of Compressed Large Language Models

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ACE-Compression introduces an ability‑centric evaluation framework for compressed large language models, moving beyond traditional task‑performance metrics. It probes four deployment‑relevant dimensions—procedural reasoning, knowledge grounding, social cognition, and persona fidelity—to determine which core abilities survive compression. The study finds that compression redistributes ability profiles, with coarse signals persisting while fine‑grained abilities become fragile, and that quantization generally retains more abilities than pruning.

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