UK Nonlinear News 19 (February 2000): News

UK Nonlinear News, February 2000

SIAM: SIAM Dynamical Systems Activity Group Elections.
Software: Visual Recurrence Analysis 4.2 released.
UKIE SIAM: 1999 Annual Report and current Financial Statement.

SIAM: SIAM Dynamical Systems Activity Group Elections

The votes for the SIAM Activity Group on Dynamical Systems election have been counted and the results are:

Chair	Marty Golubitsky	`mg@uh.edu`
`Vice Chair`	`Tim Sauer`	`tsauer@gmu.edu`
Program Director	Eric Kostelich	`kostelich@asu.edu`
Secretary/Treasurer	Charlie Doering	`doering@umich.edu`

Advisory Board
	John Mallet-Paret	`jmp@cfm.brown.edu`
	Ed Ott	`eo4@umail.umd.edu`
	Emily Stone	`stone@math.usu.edu`
	Harry Swinney	`swinney@chaos.ph.utexas.edu`
	David Terman	`terman@math.ohio-state.edu`

Source: Dynamica Notes Volume 1999.03.

Software: Visual Recurrence Analysis 4.2 released

Visual Recurrence Analysis v4.2 (VRA) for Windows 95, 98, and NT is a software package for topological analysis, qualitative and quantitative assessment, and nonparametric prediction of nonlinear and chaotic time series.

Main features:

Pattern and determinism recognition in the time series using the recurrence plot, which is essentially a graphical representation of the correlation integral in such a way so that the temporal dependence in the system under study is preserved.
Dynamic recurrence quantification analysis (RQA) for recurrence plots classification and characterization: analyze stationarity, periodicity, determinism, and complexity of the dynamical system as it evolves in time.
Recurrence plots animation: see the dynamical system trajectories recovered from the time series stretch and unfold in real time.
Average Mutual Information, False Nearest Neighbors, and spatio-temporal entropy methods to determine the optimal values of embedding dimension and time delay for delayed coordinate embedding.
Nonparametric modeling for nonlinear time series prediction. A wide variety of models and options is available, including nearest neighbor, locally constant, locally linear, locally weighted linear, kernel regression, and radial basis functions models.
Importing time series stored in different file formats, including ASCII text, MS Excel, and sound (WAVE) formats.
Sample data sets (periodic, chaotic, and random), comprehensive context-sensitive help, and references are included.

New in this latest version:

Radial basis functions added to the nonparametric prediction module
Extended the prediction interval beyond the last point in the series
Improved zooming in/out when viewing charts
Fixed a bug that caused a "floating point" error in RQA
Help file extended and updated

VRA v4.2 remains free provided that it is used for educational, academic, and research purposes. VRA v4.2 can be downloaded from http://home.netcom.com/~eugenek/download.html

Source: E. Konov (EKononov@sscinc.com).

UKIE SIAM: 1999 Annual Report and current Financial Statement

The annual report of the section and a current financial statement is available on the section web page: http://www.siam.ma.umist.ac.uk.

David Silvester: ( djs@lanczos.ma.umist.ac.uk).

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Last Updated: 6th February 2000.
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