Changhua Meng

Enhancing the reasoning capabilities of Large Language Models (LLMs) is a key strategy for building agents that ”think then act”. However, recent observations, like OpenAI’s o3, suggest a paradox: stronger reasoning often coincides with increased hallucination, yet no prior work has systematicall...

The rapid expansion of cryptocurrencies, especially Bitcoin, has heightened the need for efficient detection of illicit transactions, including ransomware payments and money laundering. To effectively address the unique challenges of Bitcoin fraud detection, such as handling heterogeneous, direct...