Wenhao Zhou

Object-Guided and Motion-Refined Attention Network for Video Anomaly Detection

2022 · 2022 IEEE International Conference on Multimedia and Expo (ICME)

Video anomaly detection is challenging due to the lack of abnormal videos and ambiguity of anomaly definition. Context information is important to identify anomalous events and can be reflected from the salient objects and related …

Causal Prompting for Implicit Sentiment Analysis with Large Language Models

2025 · arXiv (Cornell University)

Implicit Sentiment Analysis (ISA) aims to infer sentiment that is implied rather than explicitly stated, requiring models to perform deeper reasoning over subtle contextual cues. While recent prompting-based methods using Large Language Models (LLMs) have …