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cs.LG2026
BeliefGraph-JEPA: Structured Latent World Models for Action-Conditioned Time Series
Yue Li, Kangqi Ni, Zhen Tan +1
Action-conditioned time-series forecasting requires accounting for how future actions and exogenous forcings influence multiple targets through partially observed effects with diff…
cs.LG2026
Chimera: Latency- and Performance-Aware Multi-agent Serving for Heterogeneous LLMs
Kangqi Ni, Wenyue Hua, Xiaoxiang Shi +3
Multi-agent applications often execute complex tasks as multi-stage workflows, where each stage is an LLM call whose output becomes part of context for subsequent steps. Existing L…
cs.LG2025
Can GRPO Help LLMs Transcend Their Pretraining Origin?
Kangqi Ni, Zhen Tan, Zijie Liu +2
Reinforcement Learning with Verifiable Rewards (RLVR), primarily driven by the Group Relative Policy Optimization (GRPO) algorithm, is a leading approach for enhancing the reasonin…