Graph Coloring Algorithms and Optimization Techniques Publication Trend The graph below shows the total number of publications each year in Graph Coloring Algorithms and Optimization Techniques.

Refining with colors Mathematicians have developed various strategies to compare graphs. Since the 1970s, algorithms have been able to test graph isomorphism, but in exponential time.

Two computer scientists found — in the unlikeliest of places — just the idea they needed to make a big leap in graph theory.