The original CHEF application for Case Based Reasoning (CBR) makes for an interesting read and is covered in the Expert Systems book (Peter Jackson) . I just found the original paper online, so I thought I'd share it. Maybe someone could start doing a CHEF implementation on top of Drools?
https://www.aaai.org/Papers/AAAI/1986/AAAI86-044.pdf
"CHEF is a case-based planner that builds new plans out of its
memory of old ones. CHEF’s domain is Szechwan cooking and its
task is to build new recipes on the basis of a user’s requests. CHEF’s
input is a set of goals for different tastes, textures, ingredients and
types of dishes and its output is a single recipe that satisfies all of its
goals. Its output is a single plan, in the form of a recipe, that satisfies
all of the users goals.
Before searching for a plan to modify, CHEF examines the goals in
its input and tries to anticipate any problems that might arise while
planning for them. If a failure is predicted, CHEF adds a goal to avoid
the failure to its list of goals to satisfy and this new goal is also used
to search for a plan. Because plans are indexed in memory by the
problems they avoid, this prediction can be used to find a plan that
solves the predicted problem. Much of CHEF’s planning power lies
in this ability to predict and thus avoid failures it has encountered
before."
Sounds very familiar with "constraint based statistics", something that I hope to implement in Drools Planner by the end of the year.
ReplyDeleteIf I recall correctly there's someone planning beer recipes with Drools Planner.