---------- Forwarded message ---------- Date: Thu, 26 Jun 1997 13:57:18 +0300 (IDT) From: ZIPPIE Gonczarowski <zippie@actcom.co.il> To: cat-dist@mta.ca Dear Colleagues, I am applying tools of category theory to research in artificial perception and cognition. A basic category is proposed where every perception is an object and morphisms capture the flow between perceptions. Natural transformations capture paths to more cognitive perceptions. An Anonymous referee remarked that my category is `very closely related to comma categories'. Can anybody refer me to written material that introduces comma categories? Also, please let me know if you are aware of other research that applies categorical tools to research in artificial perception and cognition. Thanks Zippie e-mail zippie@actcom.co.il Dr. Zippora Arzi-Gonczarowski Typographics, Ltd. 46 Hehalutz St. Jerusalem 96222, Israel