<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <HTML ><HEAD ><TITLE >fann_get_quickprop_decay</TITLE ><link href="../style.css" rel="stylesheet" type="text/css"><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Fast Artificial Neural Network Library" HREF="index.html"><LINK REL="UP" TITLE="Options" HREF="x938.html"><LINK REL="PREVIOUS" TITLE="fann_get_train_error_function" HREF="r1191.html"><LINK REL="NEXT" TITLE="fann_set_quickprop_decay" HREF="r1224.html"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Fast Artificial Neural Network Library</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="r1191.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="r1224.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="api.fann_get_quickprop_decay" ></A >fann_get_quickprop_decay</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN1210" ></A ><H2 >Name</H2 >fann_get_quickprop_decay -- Get the decay parameter used by the quickprop training.</DIV ><DIV CLASS="refsect1" ><A NAME="AEN1213" ></A ><H2 >Description</H2 ><code class="methodsynopsis" > <span class="type" >float </span >fann_get_quickprop_decay(<span class="methodparam" ><span class="type" >struct fann * </span ><span class="parameter" >ann</span ></span >); </code ><P > The decay is a small negative valued number which is the factor that the weights should become smaller in each iteration. This is used to make sure that the weights do not become too high during training. </P ><P > The default value for this parameter is -0.0001. </P ><P >This function appears in FANN >= 1.2.0.</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="r1191.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="r1224.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >fann_get_train_error_function</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="x938.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >fann_set_quickprop_decay</TD ></TR ></TABLE ></DIV ></BODY ></HTML >
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