collaborators

8 papers

cs.RO2026

Behavioral Score Diffusion: Model-Free Trajectory Planning via Kernel-Based Score Estimation from Data

Shihao Li, Jiachen Li, Jiamin Xu +1

Diffusion-based trajectory optimization has emerged as a powerful planning paradigm, but existing methods require either learned score networks trained on large datasets or analyti…

eess.SY2026

Datamodel-Based Data Selection for Nonlinear Data-Enabled Predictive Control

Jiachen Li, Shihao Li, Jiamin Xu +2

Data-Enabled Predictive Control (DeePC) has emerged as a powerful framework for controlling unknown systems directly from input-output data. For nonlinear systems, recent work has…

eess.SY2026

Influence Functions for Data Attribution in Linear System Identification and LQR Control

Jiachen Li, Shihao Li, Soovadeep Bakshi +2

When a controller is designed from an identified model, its performance ultimately depends on the trajectories used for identification, but pinpointing which ones help or hurt rema…

eess.SY2026

IF-CPS: Influence Functions for Cyber-Physical Systems -- A Unified Framework for Diagnosis, Curation, and Safety Attribution

Jiachen Li, Shihao Li, Soovadeep Bakshi +2

Neural network controllers trained via behavior cloning are increasingly deployed in cyber-physical systems (CPS), yet practitioners lack tools to trace controller failures back to…

eess.SY2026

Stochastic Trajectory Influence Functions for LQR: Joint Sensitivity Through Dynamics and Noise Covariance

Jiachen Li, Shihao Li, Soovadeep Bakshi +2

We present a three-level influence hierarchy for data valuation in stochastic LQR. At the \emph{model level}, the trajectory influence surrogate $\IFm_k := H^{-1}g_k$ approximates…

eess.SY2025

From Natural Language to Certified H-infinity Controllers: Integrating LLM Agents with LMI-Based Synthesis

Shihao Li, Jiachen Li, Jiamin Xu +1

We present \textsc{S2C} (Specification-to-Certified-Controller), a multi-agent framework that maps natural-language requirements to certified state-feedback co…