© 2000 Todd Neller.  A.I.M.A. text figures © 1995 Prentice Hall.  Used by permission.
SMA*
•Argument: IDA* uses too little memory
•SMA* - Simplified Memory-bounded A*
•Korf: SMA* 20x slower on 15 tile puzzle
•Tradeoff: wasted work searching vs. wasted work checking repeated states.
•Can there be a good balance?