Jie Ying

Abnormal Human Activity Recognition using Bayes Classifier and Convolutional Neural Network

2018

This paper introduces a method of abnormal human activity recognition in surveillance video. The method uses Bayes Classifier and Convolutional Neural Network to detect four activities, including walking, running, punching and tripping. KTH dataset is …

ROGRAG: A Robustly Optimized GraphRAG Framework

2025 · arXiv (Cornell University)

Large language models (LLMs) commonly struggle with specialized or emerging topics which are rarely seen in the training corpus. Graph-based retrieval-augmented generation (GraphRAG) addresses this by structuring domain knowledge as a graph for dynamic retrieval. …