推論系統

推論 runtime、量化、 serving、KV cache、成本與效能。

AI 可解釋性研究

Forking Fast Reconstructs Reasoning Branches with Change-Point Detection, Cutting the Token Budget to One-Eighth

The new method treats the distribution of reasoning outcomes as a piecewise-smooth sequence, uses PELT to identify genuine decision points, and applies Dirichlet kernel pooling to suppress sampling noise. Experiments on two 8B models show that it can substantially reduce resampling, though the findings currently cover only tinyMMLU multiple-choice questions.

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NVIDIA AVO Completes All 183 Levels in the ARC-AGI-3 Public Set With About 12% Fewer Actions Than VISTA

NVIDIA adapted the AVO agent architecture, originally used for evolutionary search over GPU kernels, to interactive reasoning and achieved a 100.00 RHAE score with Claude Opus 5. The results show that agent memory and verification loops can substantially change the performance of the same model, but they cover only public environments, and the comparison with VISTA is not a controlled ablation.

推論系統

Pandora’s Router Factors Model-Evaluation Costs Into Routing, Cutting EmbedLLM’s Combined Loss to 0.386

Google DeepMind formulates the decision of whether to run costly model evaluations as a “Pandora’s box” search problem, deciding sequentially whether an additional assessment is worthwhile based on its value of information. It achieved the lowest average routing regret plus evaluation cost across all three tests, although its effectiveness depends on calibrated signal distributions and cost settings.

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Restricting Module Visibility Fosters Reusable Latent Communication; Restricted Models Lead by at Least 20 Points in 9 of 10 Paired Experiments

Four modules sharing Qwen2.5-0.5B and the same LoRA learned radically different composition strategies solely because of different attention masks. Limiting each module to its own evidence fragment made it easier to develop intermediate-value communication that transferred across examples, but the experiment still missed its preregistered overall success threshold by 0.0012.