Report summary

For Columbia University Department of Computer Science in 2015-2026, the graph shows 73 visible PIs and 53 internal PI collaborations. The dominant subject mix is Computer Science as the leading field (45% of slots across 53 PIs; 53 labels), Artificial Intelligence as the leading subfield (14% of slots across 23 PIs; 23 labels), and Topic Modeling as the leading topic (3% of slots across 7 PIs; 7 labels). The network looks reasonably well-rounded, with visible collaboration groups but not so much concentration that one field explains the whole department. The top weighted PIs are Xi Chen (126.5 weighted works; Supercapacitor Materials and Fabrication, Advanced Sensor and Energy Harvesting Materials). The most visible ties are Yangruibo Ding and Baishakhi Ray (10 shared works, weight 7.3); Lydia B. Chilton and Vivian Liu (10 shared works, weight 6.8). The standout breakdown groups are group 1 with 10 PIs, 11 internal connections, weight 39.3, around Information Systems, Artificial Intelligence, Software, led by Mingoo Seok, Yangruibo Ding, Fang-Hsiang Su.