Author

Chang-Feng Xu

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#natural language process... Preprint Oct 2026

Specialized Decision Models vs. General-Purpose LLMs: Benchmarking Jev Across Knowledge, Reasoning, and Multilingual Tasks

Jev is a"System One"model that returns a choice among given options instead of generating text. We study how such a specialized decision model compares with general-purpose large language models (LLMs). We evaluate Jev on 13 multiple-choice benchmarks covering knowledge, reasoning, and multilingual understanding, and c...

Xing Li, Qing-Cheng Chang, Jin-Zhong Ning et al. · 0 citations

#machine learning Preprint Sep 2026

Copper-Policy: Focus on the Representation for Robust Robot Manipulation

Copper-Policy is introduced, which learns a compact World representation with the policy rather than relying on a predefined target space and predicts future observation embeddings conditioned on task intention without reconstructing pixels through temporal joint-embedding prediction.

Ze Feng, Yi-Xu Feng, Ling-Yu Xiao et al. · 0 citations