📄 learnparam.html
字号:
<HTML>
<BODY BGCOLOR="white">
<PRE>
<FONT color="green">001</FONT> /*<a name="line.1"></a>
<FONT color="green">002</FONT> * JNI_SVM-light - A Java Native Interface for SVM-light<a name="line.2"></a>
<FONT color="green">003</FONT> * <a name="line.3"></a>
<FONT color="green">004</FONT> * Copyright (C) 2005 <a name="line.4"></a>
<FONT color="green">005</FONT> * Tom Crecelius & Martin Theobald <a name="line.5"></a>
<FONT color="green">006</FONT> * Max-Planck Institute for Computer Science<a name="line.6"></a>
<FONT color="green">007</FONT> * <a name="line.7"></a>
<FONT color="green">008</FONT> * This program is free software; you can redistribute it and/or modify it under<a name="line.8"></a>
<FONT color="green">009</FONT> * the terms of the GNU General Public License as published by the Free Software<a name="line.9"></a>
<FONT color="green">010</FONT> * Foundation.<a name="line.10"></a>
<FONT color="green">011</FONT> * <a name="line.11"></a>
<FONT color="green">012</FONT> * This program is distributed in the hope that it will be useful, but WITHOUT<a name="line.12"></a>
<FONT color="green">013</FONT> * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS<a name="line.13"></a>
<FONT color="green">014</FONT> * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more<a name="line.14"></a>
<FONT color="green">015</FONT> * details.<a name="line.15"></a>
<FONT color="green">016</FONT> * <a name="line.16"></a>
<FONT color="green">017</FONT> * You should have received a copy of the GNU General Public License along with<a name="line.17"></a>
<FONT color="green">018</FONT> * this program; if not, write to the Free Software Foundation, Inc., 51<a name="line.18"></a>
<FONT color="green">019</FONT> * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA<a name="line.19"></a>
<FONT color="green">020</FONT> */<a name="line.20"></a>
<FONT color="green">021</FONT> <a name="line.21"></a>
<FONT color="green">022</FONT> package jnisvmlight;<a name="line.22"></a>
<FONT color="green">023</FONT> <a name="line.23"></a>
<FONT color="green">024</FONT> /**<a name="line.24"></a>
<FONT color="green">025</FONT> * Learning parameters as denoted by SVM-light.<a name="line.25"></a>
<FONT color="green">026</FONT> * <a name="line.26"></a>
<FONT color="green">027</FONT> * @author Tom Crecelius & Martin Theobald<a name="line.27"></a>
<FONT color="green">028</FONT> */<a name="line.28"></a>
<FONT color="green">029</FONT> public class LearnParam {<a name="line.29"></a>
<FONT color="green">030</FONT> <a name="line.30"></a>
<FONT color="green">031</FONT> /** Trains a classification model. */<a name="line.31"></a>
<FONT color="green">032</FONT> public static final int CLASSIFICATION = 1;<a name="line.32"></a>
<FONT color="green">033</FONT> <a name="line.33"></a>
<FONT color="green">034</FONT> /** Trains on general set of constraints. */<a name="line.34"></a>
<FONT color="green">035</FONT> public static final int OPTIMIZATION = 4;<a name="line.35"></a>
<FONT color="green">036</FONT> <a name="line.36"></a>
<FONT color="green">037</FONT> /** Trains a ranking model. */<a name="line.37"></a>
<FONT color="green">038</FONT> public static final int RANKING = 3;<a name="line.38"></a>
<FONT color="green">039</FONT> <a name="line.39"></a>
<FONT color="green">040</FONT> /** Trains a regression model. */<a name="line.40"></a>
<FONT color="green">041</FONT> public static final int REGRESSION = 2;<a name="line.41"></a>
<FONT color="green">042</FONT> <a name="line.42"></a>
<FONT color="green">043</FONT> /**<a name="line.43"></a>
<FONT color="green">044</FONT> * File to store optimal alphas in. use empty string if alphas should not be<a name="line.44"></a>
<FONT color="green">045</FONT> * output.<a name="line.45"></a>
<FONT color="green">046</FONT> */<a name="line.46"></a>
<FONT color="green">047</FONT> public String alphafile;<a name="line.47"></a>
<FONT color="green">048</FONT> <a name="line.48"></a>
<FONT color="green">049</FONT> /** The cardinality of the command line parameters. */<a name="line.49"></a>
<FONT color="green">050</FONT> public int argc = 0;<a name="line.50"></a>
<FONT color="green">051</FONT> <a name="line.51"></a>
<FONT color="green">052</FONT> /**<a name="line.52"></a>
<FONT color="green">053</FONT> * Optionally simulates a simple command shell-like usage and transfers the<a name="line.53"></a>
<FONT color="green">054</FONT> * command line parameters to SVM-light.<a name="line.54"></a>
<FONT color="green">055</FONT> */<a name="line.55"></a>
<FONT color="green">056</FONT> public String[] argv;<a name="line.56"></a>
<FONT color="green">057</FONT> <a name="line.57"></a>
<FONT color="green">058</FONT> /** If nonzero, use hyperplane w*x+b=0 otherwise w*x=0. */<a name="line.58"></a>
<FONT color="green">059</FONT> public long biased_hyperplane;<a name="line.59"></a>
<FONT color="green">060</FONT> <a name="line.60"></a>
<FONT color="green">061</FONT> /** If nonzero, computes leave-one-outestimates. */<a name="line.61"></a>
<FONT color="green">062</FONT> public long compute_loo;<a name="line.62"></a>
<FONT color="green">063</FONT> <a name="line.63"></a>
<FONT color="green">064</FONT> /** Regression epsilon (eps=1.0 for classification). */<a name="line.64"></a>
<FONT color="green">065</FONT> public double eps;<a name="line.65"></a>
<FONT color="green">066</FONT> <a name="line.66"></a>
<FONT color="green">067</FONT> /** Tolerable error on alphas at bounds. */<a name="line.67"></a>
<FONT color="green">068</FONT> public double epsilon_a;<a name="line.68"></a>
<FONT color="green">069</FONT> <a name="line.69"></a>
<FONT color="green">070</FONT> /** Tolerable error on eq-constraint. */<a name="line.70"></a>
<FONT color="green">071</FONT> public double epsilon_const;<a name="line.71"></a>
<FONT color="green">072</FONT> <a name="line.72"></a>
<FONT color="green">073</FONT> /** Tolerable error for distances used in stopping criterion. */<a name="line.73"></a>
<FONT color="green">074</FONT> public double epsilon_crit;<a name="line.74"></a>
<FONT color="green">075</FONT> <a name="line.75"></a>
<FONT color="green">076</FONT> /** How much a multiplier should be above zero for shrinking. */<a name="line.76"></a>
<FONT color="green">077</FONT> public double epsilon_shrink;<a name="line.77"></a>
<FONT color="green">078</FONT> <a name="line.78"></a>
<FONT color="green">079</FONT> /** Size of kernel cache in megabytes. */<a name="line.79"></a>
<FONT color="green">080</FONT> public long kernel_cache_size;<a name="line.80"></a>
<FONT color="green">081</FONT> <a name="line.81"></a>
<FONT color="green">082</FONT> /**<a name="line.82"></a>
<FONT color="green">083</FONT> * Number of iterations after which the optimizer terminates, if there was no<a name="line.83"></a>
<FONT color="green">084</FONT> * progress in maxdiff.<a name="line.84"></a>
<FONT color="green">085</FONT> */<a name="line.85"></a>
<FONT color="green">086</FONT> public long maxiter;<a name="line.86"></a>
<FONT color="green">087</FONT> <a name="line.87"></a>
<FONT color="green">088</FONT> /** Precision of solver, set to e.g. 1e-21 if you get convergence problems. */<a name="line.88"></a>
<FONT color="green">089</FONT> public double opt_precision;<a name="line.89"></a>
<FONT color="green">090</FONT> <a name="line.90"></a>
<FONT color="green">091</FONT> /** File for predicitions on unlabeled examples in transduction. */<a name="line.91"></a>
<FONT color="green">092</FONT> public String predfile;<a name="line.92"></a>
<FONT color="green">093</FONT> <a name="line.93"></a>
<FONT color="green">094</FONT> /** Exclude examples with alpha at C and retrain. */<a name="line.94"></a>
<FONT color="green">095</FONT> public long remove_inconsistent;<a name="line.95"></a>
<FONT color="green">096</FONT> <a name="line.96"></a>
<FONT color="green">097</FONT> /** Parameter in xi/alpha-estimates and for pruning leave-one-out range [1..2]. */<a name="line.97"></a>
<FONT color="green">098</FONT> public double rho;<a name="line.98"></a>
<FONT color="green">099</FONT> <a name="line.99"></a>
<FONT color="green">100</FONT> /**<a name="line.100"></a>
<FONT color="green">101</FONT> * If nonzero, it will use the shared slack variable mode. In<a name="line.101"></a>
<FONT color="green">102</FONT> * svm_learn_optimization it requires that the slack-id is set for every<a name="line.102"></a>
<FONT color="green">103</FONT> * training example.<a name="line.103"></a>
<FONT color="green">104</FONT> */<a name="line.104"></a>
<FONT color="green">105</FONT> public long sharedslack;<a name="line.105"></a>
<FONT color="green">106</FONT> <a name="line.106"></a>
<FONT color="green">107</FONT> /**<a name="line.107"></a>
<FONT color="green">108</FONT> * Do not check KT-Conditions at the end of optimization for examples removed<a name="line.108"></a>
<FONT color="green">109</FONT> * by shrinking. WARNING: This might lead to sub-optimal solutions!<a name="line.109"></a>
<FONT color="green">110</FONT> */<a name="line.110"></a>
<FONT color="green">111</FONT> public long skip_final_opt_check;<a name="line.111"></a>
<FONT color="green">112</FONT> <a name="line.112"></a>
<FONT color="green">113</FONT> /** Upper bound C on alphas. */<a name="line.113"></a>
<FONT color="green">114</FONT> public double svm_c;<a name="line.114"></a>
<FONT color="green">115</FONT> <a name="line.115"></a>
<FONT color="green">116</FONT> /** Increase C by this factor every step. */<a name="line.116"></a>
<FONT color="green">117</FONT> public double svm_c_factor;<a name="line.117"></a>
<FONT color="green">118</FONT> <a name="line.118"></a>
<FONT color="green">119</FONT> /** Do so many steps for finding optimal C. */<a name="line.119"></a>
<FONT color="green">120</FONT> public long svm_c_steps;<a name="line.120"></a>
<FONT color="green">121</FONT> <a name="line.121"></a>
<FONT color="green">122</FONT> /** Individual upper bounds for each var. */<a name="line.122"></a>
<FONT color="green">123</FONT> public double svm_cost;<a name="line.123"></a>
<FONT color="green">124</FONT> <a name="line.124"></a>
<FONT color="green">125</FONT> /** Factor to multiply C for positive examples. */<a name="line.125"></a>
<FONT color="green">126</FONT> public double svm_costratio;<a name="line.126"></a>
⌨️ 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 + -