Xiaodong Cai

h-index16
2papers
1,104citations

2 Papers

2.7CLNov 30, 2025Code
Auxiliary-Hyperparameter-Free Sampling: Entropy Equilibrium for Text Generation

Xiaodong Cai, Hai Lin, Shaoxiong Zhan et al.

Token sampling strategies critically influence text generation quality in large language models (LLMs). However, existing methods introduce additional hyperparameters, requiring extensive tuning and complicating deployment. We present Entropy Equilibrium Sampling (EES), an auxiliary hyperparameter-free approach inspired by information theory that can dynamically adjust candidate sets by balancing normalized entropy with probability mass. We evaluate EES on both reasoning and generation tasks across a range of model architectures. Our results show that EES consistently performs well across temperature settings, delivering competitive accuracy and coherence while maintaining diversity. By eliminating the need for hyperparameter tuning, EES greatly simplifies deployment while improving performance. Code is available at https://github.com/shuanncai/EES

9.3HCAug 28, 2019
Efficient Convolutional Neural Network for FMCW Radar Based Hand Gesture Recognition

Xiaodong Cai, Jingyi Ma, Wei Liu et al.

FMCW radar could detect object's range, speed and Angleof-Arrival, advantages are robust to bad weather, good range resolution, and good speed resolution. In this paper, we consider the FMCW radar as a novel interacting interface on laptop. We merge sequences of object's range, speed, azimuth information into single input, then feed to a convolution neural network to learn spatial and temporal patterns. Our model achieved 96% accuracy on test set and real-time test.