college_freshmen: Dutch college freshman (1995)
A small network of friendships among freshmen at Dutch College in 1994-1995. Friendship ties were surveyed at 7 different times over the year, and each edge is timestamped. The direction of an edge indicates that person i named person j, and the edge weight represents their level of friendship, ranging from -1 (risk of conflict) to 3 (best friend).
This network has 32 nodes and 3062 edges.
Tags: Social, Offline, Weighted, Tim…
Uber launches prepaid passes, letting customers pay a discounted price in advance on frequently taken trips, in bundles of 5, 10, 15, or 20 rides (Andrew J. Hawkins/The Verge)
https://www.theverge.com/news/782765/uber-prepaid-pass-bundle-discount-route…
Frequency-Varying Optimization: A Control Framework for New Dynamic Frequency Response Services
Yiqiao Xu, Quan Wan, Alessandra Parisio
https://arxiv.org/abs/2509.18935 https://…
This is a strange warning published in a Chinese state outlet. It basically warns that all forms of online shopping are subject to foreign espionage, and vendors should engage in data minimization.
https://www.globaltimes.cn/page/202510/1346444.shtml
freshmen: Zeggelink's freshmen (1999)
Snapshots of friendships among freshmen majoring in Sociology at the University of Groningen, collected five times over the 1998-1999 year. The direction of an edge indicates that student i is friends with student j, and the edge weight gives their friendship level from 1 (best friend) to 5 (troubled relation). Metadata include gender, age, program type, and smoking behavior.
This network has 34 nodes and 1156 edges.
Tags: Social, O…