hendler@BRILLIG.UMD.EDU (Jim Hendler) (10/27/86)
Subject: seeking info on multi-linear partial orderings I recently had a paper rejected from a conference that discussed, among other things, using a set of hierarchical networks for constraint propogation (i.e. propogating the information through several levels of network simultaneously). One of the reviewers said "they apply a fairly standard AI technique..." and I wonder about this. I thought I was up on various constraint propagation techniques, but wonder if anyone has a pointer to work (preferably in a qualitative reasoning system) that discusses the use of multi-layer constraint propogation? thanks much Jim Hendler Ass't Professor U of Md College Park, Md. 20742 [I would check into the MIT work (don't have the reference handy, but some of it's in the two-volume AI: An MIT Perspective) on modeling electronic circuits. All but the first papers used multiple views of subsystems to permit propagation of constraints at different granularities. Subsequent work on electronic fault diagnosis (e.g., Randy Davis) goes even further. Other work in "pyramidal" parsing (speech, images, line drawings) has grown from the Hearsay blackboard architecture. -- KIL]