George Wilson

Learn More
This paper introduces a set of guidelines for annotating time expressions with a canonicalized representation of the times they refer to. Applications that can benefit from such an annotated corpus include information extraction (e.g., normalizing temporal references for database entry), question answering (answering " when " questions), summarization(More)
DISCLAIMER The views, opinions and/or findings contained in this report are those of The MITRE Corporation and should not be construed as an official Government position, policy, or decision, unless designated by other documentation. This report documents the results of a short email-mediated study by The MITRE Corporation on the use of free and open-source(More)
Let A 1 be the (first) Weyl algebra, and let G be its automorphism group. We study the natural action of G on the space of isomorphism classes of right ideals of A 1 (equivalently, of finitely generated rank 1 torsion-free right A 1-modules). We show that this space breaks up into a countable number of orbits each of which is a finite dimensional algebraic(More)
[Borkovec, T. D. (1994). Worrying: perspectives on theory, assessment and treatment (pp. 5-34). West Sussex: Wiley] proposes that the cognitive activity of worry restricts autonomic nervous system activity, producing autonomic rigidity. Autonomic rigidity affects both sympathetic nervous system [Behav. Res. Ther. 28 (1990) 69.] and parasympathetic nervous(More)
Let R be the set of isomorphism classes of ideals in the Weyl algebra A = A 1 (C) , and let C be the set of isomorphism classes of triples (V, X, Y) , where V is a finite-dimensional (complex) vector space, and X, Y are endomorphisms of V such that [X, Y] + I has rank 1. Following a suggestion of L. Le Bruyn, we define a map θ : R → C by appropriately(More)