Showing math.STShow all
2 papers · 1 filter
math.ST2025
Network Goodness-of-Fit for the block-model family
Jiashun Jin, Zheng Tracy Ke, Jiajun Tang +1
The block-model family has four popular network models (SBM, DCBM, MMSBM, and DCMM). A fundamental problem is, how well each of these models fits with real networks. We propose GoF…
math.ST2024
Entry-Wise Eigenvector Analysis and Improved Rates for Topic Modeling on Short Documents
Zheng Tracy Ke, Jingming Wang
Topic modeling is a widely utilized tool in text analysis. We investigate the optimal rate for estimating a topic model. Specifically, we consider a scenario with documents, a…