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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"><!--Converted with LaTeX2HTML 97.1 (release) (July 13th, 1997) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan* with significant contributions from: Jens Lippman, Marek Rouchal, Martin Wilck and others --><HTML><HEAD><TITLE>7 Change log</TITLE><META NAME="description" CONTENT="7 Change log"><META NAME="keywords" CONTENT="DemoGNG"><META NAME="resource-type" CONTENT="document"><META NAME="distribution" CONTENT="global"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso_8859_1"><LINK REL="STYLESHEET" HREF="DemoGNG.css"><LINK REL="previous" HREF="node24.html"><LINK REL="up" HREF="DemoGNG.html"></HEAD><BODY ><!--Navigation Panel--><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="http://www.neuroinformatik.ruhr-uni-bochum.de/icons/next_motif_gr.gif"> <A NAME="tex2html349" HREF="DemoGNG.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="http://www.neuroinformatik.ruhr-uni-bochum.de/icons/up_motif.gif"></A> <A NAME="tex2html345" HREF="node24.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="http://www.neuroinformatik.ruhr-uni-bochum.de/icons/previous_motif.gif"></A> <A NAME="tex2html351" HREF="node1.html"><IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="http://www.neuroinformatik.ruhr-uni-bochum.de/icons/contents_motif.gif"></A> <BR><B> Up:</B> <A NAME="tex2html350" HREF="DemoGNG.html">DemoGNG v1.5</A><B> Previous:</B> <A NAME="tex2html346" HREF="node24.html">References</A><BR><BR><!--End of Navigation Panel--><H1><A NAME="SECTION000100000000000000000">7 Change log</A></H1><P><PRE>19.10.1998: Version 1.5 released.</PRE><P>These are the most important changes from v1.0 to v1.5:<P><PRE>19.10.1998: Updated the manual.17.07.1998: LBG: Marked nodes which haven't moved since the last update. 16.07.1998: GNG-U: Fixed a small bug regarding 'beta' for utility. 15.07.1998: Non-stationary probability distributions. 23.10.1997: Fixed: nodes without neighbors are not deleted in GNG-U (but in GNG). 13.10.1997: Trifles in GNG-U. 29.09.1997: Fixed a small bug in Method LBG. 28.09.1997: New Method LBG-U (Fritzke 1997). 27.09.1997: New Method GNG-U (Fritzke 1997).10.03.1997: Version 1.3 released.09.03.1997: Proofred the manual.08.03.1997: Changed the order of the models (model menu and manual).07.03.1997: GNG: added two variables (alpha, beta).06.03.1997: Tuned the code (20% faster).05.03.1997: Cleaned up the code/deleted DEBUG statements.04.03.1997: Updated the manual.03.03.1997: Added a new button 'Random Init'.02.03.1997: Made some improvements concerning LBG.28.02.1997: Version 1.2 released.26.02.1997: Version 1.1 skipped for PR reasons :-).24.02.1997: Added description of the model specific options to the manual.24.02.1997: Improved the variable learning rate for Hard Competitive Learning.21.02.1997: Changed eta to epsilon.20.02.1997: First draft of the manual for v1.1.18.02.1997: Updated the manual.17.02.1997: Made some screen dumps for the manual.30.10.1996: Some improvements and a bugfix concerning the error values. 28.10.1996: New method Self-organizing map (SOM).23.10.1996: Redesigned the user interface. I have made minor changes only. The next major version 2.0 will have a complete new interface. 22.10.1996: Added a close button to the error graph.21.10.1996: In the method Growing Grid a percentage counter appears in the fine-tuning phase. At 100% the calculation stops.17.10.1996: Added a new button 'White'. It switches the background of the drawing area to white. This is useful for making hardcopies of the screen.17.10.1996: New distribution UNIT.16.10.1996: Fixed a bug: Now the Voronoi diagram/Delaunay triangulation is also available for Growing Grid.15.10.1996: New method Growing Grid.14.10.1996: Added a new class GridNodeGNG to gain a grid covering the nodes. 09.10.1996: Added a new menu for speed. Now it is possible to switch to an individual speed depending on the machine and/or browser. (On some machines there was no interaction possible with the default value. On the other hand, why longer waiting than necessary?) 04.10.1996: Added an error graph. (The source of this class was written by Christian Kurzke and Ningsui Chen. I have only made minor changes to this class. Many thanks to Christian Kurzke and Ningsui Chen for this nice graph class.)30.09.1996: Added a new frame in a separate window for the error graph (new class GraphGNG).30.09.1996: New checkboxes to turn the nodes/edges on and off.26.09.1996: Fixed again all known bugs.25.09.1996: Finished the discrete distribution (mainly for LBG).24.09.1996: Default no sound.20.09.1996: Fixed all known bugs (Can you find some unknown?).19.09.1996: Prepared for new distribution (a discrete one with 500 fixed signals).10.09.1996: New method LBG (some minor bugs are known, but not concerning the method).03.09.1996: Renamed class PanelGNG to a more convenient name (ComputeGNG).02.09.1996: Split the source file DemoGNG.java. Now each class has its own file.01.09.1996: Inserted more comments.30.08.1996: Cleaned up the code to compute the Voronoi diagram/Delaunay triangulation.07.08.1996: Added Delaunay triangulation (press checkbutton Delaunay)!06.08.1996: Now you can display Voronoi diagrams for each method (press checkbutton Voronoi)!21.06.1996: Version 1.0 released.</PRE><P><BR><HR><ADDRESS><I>Hartmut S. Loos</I><BR><I>10/19/1998</I></ADDRESS></BODY></HTML>⌨️ 快捷键说明
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