© 2000 Todd Neller.  A.I.M.A. text figures © 1995 Prentice Hall.  Used by permission.
Developing a Heuristic
•Tradeoff between quality of h and efficiency of search.
•Extreme cases:
–h(n) = 0  (admissible, but equivalent to uniform cost search)
–h(n) = exact optimal cost remaining (search goes directly to goal, but full problem solved for each step!)