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#artificial intelligence Preprint Oct 2026

MLExpert: Towards a Generalist Agentic Model for Autonomous Machine Learning Engineering

Large language models (LLMs) are expanding from assisting scientific research and engineering to autonomously developing and improving AI systems, advancing AI for AI (AI4AI) as a pathway toward recursive self-improvement (RSI). Workflow-driven machine learning engineering (MLE) systems provide a practical path toward...

Shangheng Du, Jin-Xin Shi, Shuai-Yu Zhang et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Beyond Correctness: Compute-Responsive Data Selection for Reasoning Model Post-Training

Reasoning language models increasingly rely on test-time compute scaling, yet most existing work studies how to allocate inference computation while treating the model itself as fixed. We ask a complementary question: can reasoning models be post-trained to make better use of a given amount of test-time compute, and wh...

Liang He, Xiang-Yu Li, Yuxuan Wang et al. · 0 citations

Not All Errors Are Equal: Consequence-Aware Reasoning Compute Allocation

Test-time compute has emerged as an effective paradigm for improving large language model capability at inference time. Existing allocation strategies primarily prioritize tasks according to difficulty, uncertainty, or expected performance gain, implicitly treating prediction errors as equally costly. This assumption i...

Liang He, Jin Wen, Hao-Yue Wang et al. · 2 citations
#artificial intelligence Preprint Sep 2026

You Cannot Pick a Provider From the Price List: Market-Aware Routing for Open-Weight LLM Inference

Existing LLM routers choose among models using static per-model costs. We show that open-weight inference markets introduce a second, largely ignored decision axis: after choosing a model, a client must still choose which provider serves it. Measuring live endpoints across [nummodels] open models, competing providers,...

Liang He, Jing Wen, Yi-Xiong Chen et al. · 0 citations
Preprint Aug 2026

From Relevance to Execution Utility: Reward-Aware Dynamic Execution Gating for Skill-Based LLM Agents

Agent skills are increasingly used to equip large language model (LLM) agents with reusable procedural knowledge. Although recent work has substantially improved skill retrieval due to the increasing skill libraries, retrieving a plausible skill bundle does not guarantee that executing it is worthwhile. Since every ski...

Liang He, Jing Wen, Hong-Yu Gu et al. · 2 citations · ⚡1

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