Authors: Ji Ruan and Wendy MacCaull Centre of Logic and Information, StFX University, Canada Download: PDF. Abstract: This paper presents an approach to monitor healthcare workflows using a logic-based formal method. We introduce a monitoring architecture with workflows and knowledge bases, and propose a logical language, FO-LTL-K, to express temporal and knowledge properties to be [...]

Title: Verification of Games in the Game Description Language Authors: Ji Ruan, Wiebe van der Hoek, and Michael Wooldridge Abstract: The Game Description Language (GDL) is a special purpose declarative language for defining games. GDL is used in the AAAI General Game Playing Competition, which tests the ability of computer programs to play games in [...]

Title: Model Checking Knowledge Dynamics of Multi-Agent Systems Time: 3PM, 29 May 2009 Location: Seminar room in the Centre for Logic and Information at StFX. Talk Slides: available upon request. Abstract: In this talk, I will first briefly introduce Model Checking and Multi-Agent Systems (MAS), then focus on two frameworks on modelling knowledge dynamics of [...]

I plan to give four talks about my research, in the Center for Logic and Information. The first two will be kept more introductory, and the remaining two will be more advanced. Here is my first talk given on last Friday. Solving Sum-and-Product Riddle Using Public Announcement Logic Time: 2:30PM, 22 May 2009 Location: Seminar [...]

This is a dedicated page of my PhD thesis: Reasoning about Time, Action and Knowledge in Multi-Agent Systems

August 2009 Update: Final version is available here. July 2009 Update: This paper has been accepted by the JLC. March 2009 Update: The Journal of Logic and Computation (JLC) has sent us back the reviews, and we need a revision before it gets accepted.