Si Chen

Integrating hydrogeochemical diagnostics, inverse modeling, and explainable machine learning to predict drinking water quality in the Yulin river basin, southwestern China

Haidong Li, B. Shu, Zhan Xie, Si Chen, Xingjun Zhang, Xun Huang, et al.

AUCH-Net: Action Unit-Based Consistency-Aware Hypergraph Network for Cross-Domain Few-Shot Facial Expression Recognition

Xinhan Qiu, Yan Yan, Rui Zhu, Si Chen, Hanzi Wang

Recently, cross-domain few-shot facial expression recognition (CF-FER) has received considerable attention. However, the performance of existing CF-FER methods is still unsatisfactory due to inferior transferable feature learning under large domain discrepancy and limited target…Read more

Rethinking Heterogeneous LLM Merging: A Weighted Model Averaging Perspective

Jiahe Fan, Yinghao Hou, Si Chen, Aiyuan Zhang, Hong Xie, Defu Lian

Can large language models with substantially different parameter spaces be merged by direct weighted averaging, without training or semantic alignment? Existing heterogeneous fusion methods typically introduce distillation, adapters, learned latent spaces, routing, or feature ali…Read more