Better compression for a positive DNF than via BDD

J

Jan Burse

Guest
Dear All,

I am experimenting with compressing positive disjunctive normal form
(DNF). When I use binary decision diagrams (BDDs) related algorithms I
don't get very good results.

Here is an example of the desired compression:

Input:
(p & q & s & t) v
(p & r & s & t) v
(p & q & s & u) v
(p & r & s & u) v
w.

Output:
(p & (q v r) & s & (t v u)) v
w.

Do such algorithms exits? Are they time or space intensive?

Bye
 

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