Sökning: "derivation"
Visar resultat 16 - 20 av 271 avhandlingar innehållade ordet derivation.
16. Structure-driven derivation of inter-lingual functor-argument trees for multi-lingual generation
Sammanfattning : We show how an inter-lingual representation o messages can be exploited for natural language generation of technical documentation into Swedish and English in a system called Genie. Genie has a conceptual knowledge base of the facts considered as true in the domain. A user queries the knowledge base for the facts she wants the document to include. LÄS MER
17. Phases in the NaNbO₃-Nb₂O₅-WO₃ system : derivation of complex structures by twinning, fourling and anti-phase-boundary operations on the ReO₃-type structure
Sammanfattning : The compounds of the title system are reviewed with emphasis on their crystal structures. The principles used in describing them include not only the well-known concept of crystallographic shear in ReOg and the concomitant notion of block structures but also new applications of the idea of chemical twinning of an ReO^-type structure on the unit cell level. LÄS MER
18. BV-algebras in topology and homotopy algebra
Sammanfattning : This Licentiate thesis consists of two papers. The first paper is called A-infinity-algebras derived from associative algebras with a non-derivation differential. The second paper is joint work with A. Berglund and is called Free loop space homology of highly connected manifolds. LÄS MER
19. Efficient Calculation of Nonlinear Spectroscopic Properties within the Time-Dependent Density Functional Theory Approximation
Sammanfattning : This thesis introduces a novel computational scheme tailored for efficient calculations of nonlinear spectroscopic observables. First, a derivation and implementation of an algorithm designed to harness the linearity of the Fock matrix construction in calculating two-photon absorption cross-sections within the self-consistent field approximation is presented. LÄS MER
20. On Uniformly Random Discrete Interlacing Systems
Sammanfattning : This thesis concerns uniformly random discrete interlacing particle sys-tems and their connections to certain random lozenge tiling models. In par-ticular it contains the first derivation of a relatively unknown universal scalinglimit, which we call the Cusp-Airy process, of certain lozenge tiling modelsat a cusp point. LÄS MER