1.

Record Nr.

UNINA9910151932203321

Autore

Holden Helge

Titolo

Splitting Methods for Partial Differential Equations with Rough Solutions [[electronic resource] ] : Analysis and MATLAB programs / / Helge Holden, Kenneth Hvistendahl Karlsen, Knut-Andreas Lie, Nils Henrik Risebro

Pubbl/distr/stampa

Zuerich, Switzerland, : European Mathematical Society Publishing House, 2010

ISBN

3-03719-578-9

Descrizione fisica

1 online resource (234 pages)

Collana

EMS Series of Lectures in Mathematics (ELM) ; , 2523-5176

Classificazione

65-xx35-xx47-xx

Soggetti

Differential equations

Numerical analysis

Partial differential equations

Operator theory

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Sommario/riassunto

Operator splitting (or the fractional steps method) is a very common tool to analyze nonlinear partial differential equations both numerically and analytically. By applying operator splitting to a complicated model one can often split it into simpler problems that can be analyzed separately. In this book one studies operator splitting for a family of nonlinear evolution equations, including hyperbolic conservation laws and degenerate convection-diffusion equations. Common for these equations is the prevalence of rough, or non-smooth, solutions, e.g., shocks.  Rigorous analysis is presented, showing that both semi-discrete and fully discrete splitting methods converge. For conservation laws, sharp error estimates are provided and for convection-diffusion equations one discusses a priori and a posteriori correction of entropy errors introduced by the splitting. Numerical methods include finite difference and finite volume methods as well as front tracking. The theory is illustrated by numerous examples. There is a dedicated web page that provides MATLAB codes for many of the examples.  The book



is suitable for graduate students and researchers in pure and applied mathematics, physics, and engineering.

2.

Record Nr.

UNINA9910437562103321

Titolo

Systems and Frameworks for Computational Morphology : Third International Workshop, SFCM 2013, Berlin, Germany, September 5, 2013, Proceedings / / edited by Cerstin Mahlow, Michael Piotrowski

Pubbl/distr/stampa

Berlin, Heidelberg : , : Springer Berlin Heidelberg : , : Imprint : Springer, , 2013

ISBN

3-642-40486-3

Edizione

[1st ed. 2013.]

Descrizione fisica

1 online resource (XII, 147 p. 22 illus.)

Collana

Communications in Computer and Information Science, , 1865-0937 ; ; 380

Disciplina

006.35

Soggetti

Natural language processing (Computer science)

Artificial intelligence

Natural Language Processing (NLP)

Artificial Intelligence

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

The state of computational morphology.- A case study in tagging case in German -- Jabalin: a comprehensive computational model -- HFST - a system for creating NLP tools.

Sommario/riassunto

This book constitutes the refereed proceedings of the Third International Workshop on Systems and Frameworks for Computational Morphology, SFCM 2013, held in Berlin, in September 2013. The 7 full papers were carefully reviewed and selected from 15 submissions and are complemented with an invited talk. The papers discuss recent advances in the field of computational morphology.