Q. Feng

collaborators

2 papers

stat.CO2026

Efficient Variance Estimation for the Polytomous Discrimination Index

Qunqiang Feng, Taozheng Jia, Pan Liu +2

Evaluating diagnostic accuracy for multi-category outcomes remains a significant challenge, primarily due to computational limitations in existing performance metrics. The Polytomo…

math.PR2026

Asymptotic normality for triangle counting in the sparse $I^^{2}$ -model

Siang Zhang, Qunqiang Feng, Zhishui Hu

We study the number of triangles $T_{n}$ in the sparse $I^^{2}$ -model on $n$ vertices, a random graph model that captures degree heterogeneity in real-world networks. Using the norms of…

Efficient Variance Estimation for the Polytomous Discrimination Index

Asymptotic normality for triangle counting in the sparse I^2-model

Asymptotic normality for triangle counting in the sparse $I^^{2}$ -model