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Author

Zhen-Jiang Ren

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Preprint Aug 2026

EviGraph: Evidence-Guided Autonomous Research Agents

EviGraph is introduced, an autonomous research framework that represents the research process as a typed evidence graph containing Problem, Gap, Hypothesis, Experiment, Finding, and Claim nodes, and the graph serves as the operational state of the agent rather than a post-hoc record.

Zhen-Jiang Ren, Rui-Ji Li, Xu-Jing Zhang et al. · 1 citation
Review Jul 2026

Self-Improvements in Modern Agentic Systems: A Survey

This survey frames modern self-improving agents as adaptive systems that convert experience into accumulated capability gains, and offers a system-level framework that represents a modern agent as a configuration coupling a foundation model with an operational scaffold of prompts, memory, tools, and control logic.

Zhen-Jiang Ren, Yi-Meng Chen, Dan-Dan Guo et al. · 9 citations · ⚡1

Bayesian Sparse Low-Rank Adaptation for Large Language Model Uncertainty Estimation

Data-Adaptive Lower-Rank Adaptation (DALorRA), a simple and effective variational Bayesian sparse framework that shifts the paradigm of uncertainty quantification from the dense parameter space to the lightweight rank level of low-rank adaptation (LoRA).

Ji-Jie Zhang, Zhenjiang Ren, Quan Zhang et al. · 0 citations

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