In this paper we study the ramification problem in the setting of temporal databases. Standard solutions from the literature on reasoning about action are in- adequate because they rely on the assumptions that fluents persist and actions have effects on the subse- quent situation only. We provide a solution based on an extension of the situation calculus and the work of McCain and Turner. More specifically, we study the case where there are conflicting effects of concur- rently executing actions and we distinguish between hard and soft integrity constraints.
Citation:
Nikos Papadakis, Grigoris Antoniou, Dimitris Plexousakis, "The Ramification Problem in Temporal Databases: Concurrent Execution with Conflicting Constraints," ictai, vol. 2, pp.274-278, 19th IEEE International Conference on Tools with Artificial Intelligence - Vol.2 (ICTAI 2007), 2007