collaborators

10 papers

cs.CV2026

Skin Lesion Classification Based on ResNet-50 Enhanced With Adaptive Spatial Feature Fusion

Runhao Liu, Fengyi Zha, Fei Ding +2

Skin cancer classification is challenging due to high inter-class similarity, intra-class variability, and artifacts in dermoscopic images. To address these issues, we propose an i…

cs.AI2026

ThinkReset: Learnable Intermediate Interface Construction for Bounded-Context Long-Horizon Reasoning

Fei Ding, Yongkang Zhang, Runhao Liu +2

Long chain-of-thought reasoning improves performance on complex problems, but it also introduces redundancy accumulation, context overflow, and error anchoring. We argue that under…

cs.LG2026

Internalizing Outcome Supervision into Process Supervision: A New Paradigm for Reinforcement Learning for Reasoning

Fei Ding, Yongkang Zhang, Runhao Liu +4

The central challenge of reinforcement learning for reasoning lies not only in the sparsity of outcome-level supervision, but more fundamentally in how to transform feedback provid…

cs.LG2026

Rethinking the Comparison Unit in Sequence-Level Reinforcement Learning: An Equal-Length Paired Training Framework from Loss Correction to Sample Construction

Fei Ding, Yongkang Zhang, Runhao Liu +5

This paper investigates the length problem in sequence-level relative reinforcement learning. We observe that, although existing methods partially alleviate length-related phenomen…

cs.CL2026

Scaffold-Mediated Post-Training: Co-Evolving Model Parameters and Procedural Scaffold Graphs

Fei Ding, Yongkang Zhang, Runhao Liu +3

Post-training of large language models optimizes only parameters, while inference-time procedural scaffolds are typically designed independently of parameter training. This disconn…

cs.LG2026

State commitment learning: training language models to distinguish computation from memory

Fei Ding, Yongkang Zhang, Runhao Liu +3

Reasoning language models do not distinguish tokens used for computation from tokens that constitute persistent state: once generated, all hidden thoughts remain in context and inf…