Authors

Tat-Seng Chua

Publications 12

Preprint Open access

BARQ: Balanced Codebook Refinement for Low-Bit LLM Quantization

Chenhang Cui, Xu Xie, Linrui Xu et al. · 2026

As large language models (LLMs) grow in parameter count, model storage and parameter memory traffic have become major bottlenecks to efficient deployment. Codebook-based weight quantization reduces these costs, but imbalanced nearest-codeword assignments during fitting can leave some codewords insufficiently updated, l …

Preprint Open access

DNAlign: Dynamic Null-Space Safe Alignment for LLMs

Ensuring the safe and reliable deployment of large language models (LLMs) remains a fundamental challenge. Existing safety alignment approaches either incur high computational cost or unintentionally disrupt the model's core knowledge, leading to degraded fluency and factual accuracy on benign tasks. This reveals a per …

Preprint Open access

Trading Strategy Optimization via Textual Gradient

Quantitative trading strategy design aims to discover trading programs from historical data that remain effective in future markets, which can be viewed as a black-box program optimization problem. LLM-based textual gradients offer a promising approach by providing explicit optimization directions for iterative strateg …

Co-authors