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math.OC2026
An Exact Algorithm for Mixed-Integer Bilevel Stochastic Problem
Tomás Lagos, Dmytro Matsypura
We study a class of mixed-integer bilevel stochastic programs in which the leader commits to a first-stage decision before uncertainty is realized, and the follower solves a mixed-…
cs.DS2026
Designing Efficient and Reachable Routes: The -Step-Central Shortest Path Problem
Johnson Phosavanh, Dmytro Matsypura
Designing rapid transportation routes requires balancing efficiency and reachability. Shortest-path models ensure direct, cost-efficient routes but ignore coverage, while centralit…
cs.LG2026
Learning Shortest Paths When Data is Scarce
Dmytro Matsypura, Yu Pan, Hanzhao Wang
Digital twins and other simulators are increasingly used to support routing decisions in large-scale networks. However, simulator outputs often exhibit systematic bias, while groun…