Report summary

Columbia University Department of Mechanical Engineering in 2015-2026 reads as a 38-PI network with 40 internal PI collaborations. The dominant subject mix is Engineering as the leading field (36% of slots across 26 PIs; 26 labels), Biomedical Engineering as the leading subfield (11% of slots across 10 PIs; 10 labels), and 2D Materials and Applications as the leading topic (5% of slots across 5 PIs; 5 labels). That is promising: collaboration is not just one large hairball, and the leading breakdown groups cover 18 PIs across distinct clusters. The leading PI names are Anil K. Lalwani (70.9 weighted works; Hearing Loss and Rehabilitation, Hearing, Cochlea, Tinnitus, Genetics). The most visible ties are James Hone and Cory R. Dean (71 shared works, weight 19.3). The leading breakdown groups are group 1 with 10 PIs, 13 internal connections, weight 73.2, around Materials Chemistry, Electrical and Electronic Engineering, Biomedical Engineering, led by Xiaoyang Zhu, James Hone, Qiao Lin.