From: H.J.S. Basten To: Date: Tue, 07 Oct 2008 12:01:40 +0200 Subject: [pem-list] PEM Talk by Lakshmanan Kuppusamy: new date Dear all, A new date has been arranged for Lakshmanan Kuppusamy's PEM Talk: Thursday, October 16. You are all cordially invited. Speaker: Lakshmanan Kuppusamy, visiting ERCIM fellow at CWI. Title: Semi Bracketed Contextual Grammars for MCS formalisms Abstract: Fully bracketed contextual grammars were introduced to provide a tree structure to the strings generated by contextual grammars. In this talk, we see that these grammars fail to express their suitability to the so-called MCS formalism, a formalism assumed to be an appropriate model description for natural languages. When relaxing the condition on the selectors of the grammar to non-minimally Dyck covered string, we see the drastic difference in the generative power of the bracketed contextual grammars, especially covering context-free and non-context-free languages. Location: Room M279, CWI Time: 10.00 hours Hope to see you all there. Best Regards, Bas Basten