You will be given a definition of a task first, then some input of the task.
In this task, you are given a part of an article. Your task is to generate headline (title) for this text. Preferred headlines are under fifteen words.

We introduce a compact graph-theoretic repre sentation for multi-party game theory. Our main result is a provably correct and efficient algo rithm for computing approximate Nash equilibria in one-stage games represented by trees or sparse graphs.
Output:
Graphical Models for Game Theory