In the work I did at CMU on statistical causal reasoning, we made heavy use of equivalence classes. Our algorithms would find equivalence classes of causal models (generalizations of acyclic digraphs). If any edge occurred in all elements of a class then it represented a cause between the variables (nodes) associated with the edge. As I recall.
----------------------------------- Frank Wimberly My memoir: https://www.amazon.com/author/frankwimberly My scientific publications: https://www.researchgate.net/profile/Frank_Wimberly2 Phone (505) 670-9918 On Mon, Oct 14, 2019, 11:32 AM Jon Zingale <jonzing...@gmail.com> wrote: > Thanks Tom. > > It is exciting to see topos theory finding a place in the sun. > When I was participating in Dan Freed's TQFT seminars at > the University of Texas, we worked through one of Jacob's papers. > Despite the seemingly all-pervasive mistrust of category theory > (let alone topos theory), these seminars highlighted how this > wondrous branch of mathematics can elucidate the importance > of considering structural equivalence when there cannot be > a notion of strict equality. > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives back to 2003: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove >
============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com archives back to 2003: http://friam.471366.n2.nabble.com/ FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove
