Can Zhang

A Novel Covert Timing Channel Based on Bitcoin Messages

2023 · IEEE Transactions on Computers

Covert channels serve the construction of cyberspace security. By realizing the secure transmission of data, it is widely used in political and financial fields. Blockchain covert channels have higher reliability and concealment compared to traditional …

Uncovering What, Why and How: A Comprehensive Benchmark for Causation Understanding of Video Anomaly

2024 · arXiv (Cornell University)

Video anomaly understanding (VAU) aims to automatically comprehend unusual occurrences in videos, thereby enabling various applications such as traffic surveillance and industrial manufacturing. While existing VAU benchmarks primarily concentrate on anomaly detection and localization, our …

GThinker: Towards General Multimodal Reasoning via Cue-Guided Rethinking

2025 · arXiv (Cornell University)

Despite notable advancements in multimodal reasoning, leading Multimodal Large Language Models (MLLMs) still underperform on vision-centric multimodal reasoning tasks in general scenarios. This shortfall stems from their predominant reliance on logic- and knowledge-based slow thinking …