A fast and effective heuristic for the feedback arc set problem

Original paper

Input format:

A set of edges in TSV (Tab Separated Values) format:

node1⇥parent_node1
node1⇥parent_node2
node1⇥parent_node3

one per line.

Output format:

The set of edges that respect the topological ordering in the same format.

Usage:

Once the code is compiled and packed in runnable jar:

java -jar cycles_removal.jar input_file.tsv output_file.tsv