9. The system of claim 8 , wherein the operations for calculating the edge strength between the selected entity and the second entity further comprise: determining an amount of navigation between the selected entity and the second entity.
9. The system of claim 8 , wherein the operations for calculating the edge strength between the selected entity and the second entity further comprise: determining an amount of navigation between the selected entity and the second entity. 10. The system of claim 9 , wherein the operations for determining the amount of navigation between the selected entity and the second entity include: determining user session boundaries for determining related navigation history.