📄 gradient_vector_linear_approx_old.html
字号:
<html xmlns:mwsh="http://www.mathworks.com/namespace/mcode/v1/syntaxhighlight.dtd">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<!--
This HTML is auto-generated from an M-file.
To make changes, update the M-file and republish this document.
-->
<title>gradient_vector_linear_approx_old</title>
<meta name="generator" content="MATLAB 7.2">
<meta name="date" content="2006-09-28">
<meta name="m-file" content="script_gradient_vector_linear_approx_old"><style>
body {
background-color: white;
margin:10px;
}
h1 {
color: #990000;
font-size: x-large;
}
h2 {
color: #990000;
font-size: medium;
}
/* Make the text shrink to fit narrow windows, but not stretch too far in
wide windows. On Gecko-based browsers, the shrink-to-fit doesn't work. */
p,h1,h2,div.content div {
/* for MATLAB's browser */
width: 600px;
/* for Mozilla, but the "width" tag overrides it anyway */
max-width: 600px;
/* for IE */
width:expression(document.body.clientWidth > 620 ? "600px": "auto" );
}
pre.codeinput {
background: #EEEEEE;
padding: 10px;
}
@media print {
pre.codeinput {word-wrap:break-word; width:100%;}
}
span.keyword {color: #0000FF}
span.comment {color: #228B22}
span.string {color: #A020F0}
span.untermstring {color: #B20000}
span.syscmd {color: #B28C00}
pre.codeoutput {
color: #666666;
padding: 10px;
}
pre.error {
color: red;
}
p.footer {
text-align: right;
font-size: xx-small;
font-weight: lighter;
font-style: italic;
color: gray;
}
</style></head>
<body>
<div class="content">
<h1>gradient_vector_linear_approx_old</h1>
<introduction>
<p>This function returns the gradient vecotr to be used by the nonlinear</p>
</introduction>
<h2>Contents</h2>
<div>
<ul>
<li><a href="#1">Syntax</a></li>
<li><a href="#2">Description</a></li>
<li><a href="#4">Input</a></li>
<li><a href="#16">Ouput</a></li>
<li><a href="#18">Signature</a></li>
<li><a href="#20">See also</a></li>
</ul>
</div>
<h2>Syntax<a name="1"></a></h2><pre>[gradient]=gradient_vector_linear_approx_old(w,data)</pre><h2>Description<a name="2"></a></h2>
<p>conjugate gradient.</p>
<p>This is the approximate version which scales as <img src="equations/script_gradient_vector_linear_approx_old_eq622.png" align="middle">.</p>
<h2>Input<a name="4"></a></h2>
<div>
<ul>
<li>w ... d x 1 weight vector</li>
<li>data ... structure containing the data regarding the ranking task at hand [See convert_data_to_ranking_format.m]</li>
</ul>
</div>
<p>Has the following extra parameters--</p>
<p>data.lambda, the regularization parameter</p>
<p>data.epsil, the accuracy for fast erfc summation</p>
<p>data.delta_1=precompute_delta_1(data);</p>
<p>The parameters for the fast erfc summation--</p>
<p>data.p</p>
<p>data.h</p>
<p>data.rx</p>
<p>data.r</p>
<p>data.nn</p>
<h2>Ouput<a name="16"></a></h2>
<div>
<ul>
<li> gradient ... d x 1 gradient vector evaluated at w</li>
</ul>
</div>
<h2>Signature<a name="18"></a></h2>
<div>
<ul>
<li><b>Author:</b> Vikas Chandrakant Raykar
</li>
<li><b>E-Mail:</b> <a href="mailto:vikas@cs.umd.edu">vikas@cs.umd.edu</a> Date: September 27, 2006
</li>
</ul>
</div>
<h2>See also<a name="20"></a></h2>
<p><a href="convert_data_to_ranking_format.html">convert_data_to_ranking_format</a>, <a href="non_linear_conjugate_gradient.html">non_linear_conjugate_gradient</a>, <a href="RankNCG_linear_train.html">RankNCG_linear_train</a></p><pre class="codeinput"><span class="comment">%--------------------------------------------------------------------------</span>
<span class="comment">% Compute the scalars z</span>
<span class="comment">%--------------------------------------------------------------------------</span>
</pre><p class="footer"><br>
Published with wg_publish; V1.0<br></p>
</div>
<!--
##### SOURCE BEGIN #####
%% gradient_vector_linear_approx_old
% This function returns the gradient vecotr to be used by the nonlinear
%% Syntax
% [gradient]=gradient_vector_linear_approx_old(w,data)
%% Description
% conjugate gradient.
%%
% This is the approximate version which scales as <img src="equations/script_gradient_vector_linear_approx_old_eq622.png" align="middle">.
%%
%% Input
%%
%%
% * w ... d x 1 weight vector
% * data ... structure containing the data regarding the ranking task at hand [See convert_data_to_ranking_format.m]
%%
% Has the following extra parametersREPLACE_WITH_DASH_DASH
%%
% data.lambda, the regularization parameter
%%
% data.epsil, the accuracy for fast erfc summation
%%
% data.delta_1=precompute_delta_1(data);
%%
% The parameters for the fast erfc summationREPLACE_WITH_DASH_DASH
%%
% data.p
%%
% data.h
%%
% data.rx
%%
% data.r
%%
% data.nn
%%
%%
%% Ouput
%%
%%
% * gradient ... d x 1 gradient vector evaluated at w
%%
%% Signature
%%
%%
% * *Author:* Vikas Chandrakant Raykar
% * *E-Mail:* vikas@cs.umd.edu
% Date: September 27, 2006
%%
%% See also
%%
% convert_data_to_ranking_format, non_linear_conjugate_gradient, RankNCG_linear_train
%%
%%
%REPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASH
% Compute the scalars z
%REPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASH
%%
%
##### SOURCE END #####
-->
</body>
</html>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -