Edith Spaan was born on February 20, 1964, in Schagen, and educated in computer science at the University of Amsterdam.
[1] She completed her Ph.D. in 1993, with the dissertation Complexity of Modal Logics combining complexity theory and modal logic, supervised by Johan van Benthem.
[1][2] When she and her husband (formerly named Lane Hemachandra) married, they both changed their surname to Hemaspaandra.
[3] After postdoctoral research at the University at Buffalo,[1] supervised by Alan Selman,[4] Hemaspaandra taught at Le Moyne College from 1993 until 1998.
[1] She is a full professor in the Golisano College of Computing and Information Sciences at the Rochester Institute of Technology.