graph theory /ˈɡɹæf θi.əɹi/ noun2 •The branch of mathematics dealing with the properties of graphs (networks of vertices and edges).We aim to highlight the role of graph theory in modern timetabling research and provide some pointers to the relevant literature for the interested reader. — 2004 •A theory developed by applying graph theory to a particular problem or application.The entity-level approaches build an internal representation for text units and their relationships, and use graph theories to determine the significance of units. — 2009 formsgraph theories
