Ying Zhou

Study on Crisis Early-warning of Internet Rumors about Emergencies Based on BP Neural Network

2016

With the emergencies raising a media storm on the internet, it always brings all kinds of internet rumors at the same time, which not only damages the government's image, but also creates great obstacles to …

Local Standard Deviation Spectral Clustering

2018

The global scaling parameter σ may cause the typical spectral clustering algorithm NJW failing to discover the true clustering of a data set, especially it contains multiple scales. Although the Self-Turning spectral clustering algorithm can …

VCOS: A Novel Synergistic Oversampling Algorithm in Binary Imbalance Classification

2019 · IEEE Access

Learning from class-imbalanced data is a challenging problem as standard classification algorithms are designed to handle balanced class distributions. Scholars solve this problem by modifying classifiers or and generating artificial data by oversampling. The former …

Evaluation method of online education quality based on Fuzzy Rough Set

2023 · International Journal of Continuing Engineering Education and Life-Long Learning

In order to overcome the problems of unreasonable index weight distribution, poor quality evaluation results and low accuracy in the process of online education quality evaluation, this paper proposes a method of online education quality …