Report summary

For University of North Carolina at Chapel Hill Department of Biostatistics in 2021-2023, the graph shows 35 visible PIs and 57 internal PI collaborations. The main research signal is Mathematics as the leading field (26% of slots across 15 PIs; 15 labels), Statistics and Probability as the leading subfield (18% of slots across 14 PIs; 14 labels), and Statistical Methods and Inference as the leading topic (10% of slots across 10 PIs; 10 labels). That is a healthy pattern, with enough links to reveal several interpretable groups rather than one undifferentiated component. The most prominent PIs by weighted works are Yun Li (24.1 weighted works; Genomics and Chromatin Dynamics, Epigenetics and DNA Methylation). The clearest collaboration lines are Joseph G. Ibrahim and Matthew A. Psioda (10 shared works, weight 5.5). The strongest breakdown groups are group 1 with 10 PIs, 9 internal connections, weight 31.9, around Statistics and Probability, Molecular Biology, Radiology, Nuclear Medicine and Imaging, led by Yun Li, Hongtu Zhu, Jianwen Cai.