A Haskell HittingSetModule.hs module exporting a function that finds the lexicographically minimal blocking set, of minimum cardinality, of a family of sets of integers. In the spirit of Theorem 9.12(ii) and Example 9.13 from the monograph A.O. Matveev, Symmetric Cycles, Jenny Stanford Publishing, 2023.

This repository implements a scalable GRASP metaheuristic to solve the Targeted Misinformation Blocking (TMB) problem in large-scale social networks. It includes the Java source code, modified SNAP datasets, and experimental results for both IC and LT diffusion models.