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<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> import java.io.BufferedReader;<a name="line.24"></a>
<FONT color="green">025</FONT> import java.io.BufferedWriter;<a name="line.25"></a>
<FONT color="green">026</FONT> import java.io.File;<a name="line.26"></a>
<FONT color="green">027</FONT> import java.io.FileWriter;<a name="line.27"></a>
<FONT color="green">028</FONT> import java.io.IOException;<a name="line.28"></a>
<FONT color="green">029</FONT> import java.io.InputStreamReader;<a name="line.29"></a>
<FONT color="green">030</FONT> import java.io.Serializable;<a name="line.30"></a>
<FONT color="green">031</FONT> import java.net.URL;<a name="line.31"></a>
<FONT color="green">032</FONT> import java.text.ParseException;<a name="line.32"></a>
<FONT color="green">033</FONT> <a name="line.33"></a>
<FONT color="green">034</FONT> /**<a name="line.34"></a>
<FONT color="green">035</FONT> * SVM classifier model returned by SVM-light.<a name="line.35"></a>
<FONT color="green">036</FONT> * <a name="line.36"></a>
<FONT color="green">037</FONT> * @author Tom Crecelius & Martin Theobald<a name="line.37"></a>
<FONT color="green">038</FONT> */<a name="line.38"></a>
<FONT color="green">039</FONT> public class SVMLightModel implements Serializable {<a name="line.39"></a>
<FONT color="green">040</FONT> <a name="line.40"></a>
<FONT color="green">041</FONT> /**<a name="line.41"></a>
<FONT color="green">042</FONT> * Reads an SVM-light model form a URL and creates an SVMLightModel object in Java. The format is compatible to the<a name="line.42"></a>
<FONT color="green">043</FONT> * SVM-light model files.<a name="line.43"></a>
<FONT color="green">044</FONT> */<a name="line.44"></a>
<FONT color="green">045</FONT> public static SVMLightModel readSVMLightModelFromURL(URL file)<a name="line.45"></a>
<FONT color="green">046</FONT> throws ParseException {<a name="line.46"></a>
<FONT color="green">047</FONT> <a name="line.47"></a>
<FONT color="green">048</FONT> LabeledFeatureVector[] lfv;<a name="line.48"></a>
<FONT color="green">049</FONT> <a name="line.49"></a>
<FONT color="green">050</FONT> String format;<a name="line.50"></a>
<FONT color="green">051</FONT> long kType;<a name="line.51"></a>
<FONT color="green">052</FONT> long dParam;<a name="line.52"></a>
<FONT color="green">053</FONT> double gParam;<a name="line.53"></a>
<FONT color="green">054</FONT> double sParam;<a name="line.54"></a>
<FONT color="green">055</FONT> double rParam;<a name="line.55"></a>
<FONT color="green">056</FONT> String uParam;<a name="line.56"></a>
<FONT color="green">057</FONT> long highFeatIdx;<a name="line.57"></a>
<FONT color="green">058</FONT> long trainDocs;<a name="line.58"></a>
<FONT color="green">059</FONT> long numSupVecs;<a name="line.59"></a>
<FONT color="green">060</FONT> double threshold;<a name="line.60"></a>
<FONT color="green">061</FONT> <a name="line.61"></a>
<FONT color="green">062</FONT> int linecnt = 0;<a name="line.62"></a>
<FONT color="green">063</FONT> try {<a name="line.63"></a>
<FONT color="green">064</FONT> <a name="line.64"></a>
<FONT color="green">065</FONT> BufferedReader bi = new BufferedReader(new InputStreamReader(file<a name="line.65"></a>
<FONT color="green">066</FONT> .openStream()));<a name="line.66"></a>
<FONT color="green">067</FONT> String line = null;<a name="line.67"></a>
<FONT color="green">068</FONT> <a name="line.68"></a>
<FONT color="green">069</FONT> line = bi.readLine();<a name="line.69"></a>
<FONT color="green">070</FONT> format = line.toString();<a name="line.70"></a>
<FONT color="green">071</FONT> linecnt++;<a name="line.71"></a>
<FONT color="green">072</FONT> line = bi.readLine();<a name="line.72"></a>
<FONT color="green">073</FONT> kType = new Long((line.substring(0, line.indexOf('#'))).trim())<a name="line.73"></a>
<FONT color="green">074</FONT> .longValue();<a name="line.74"></a>
<FONT color="green">075</FONT> linecnt++;<a name="line.75"></a>
<FONT color="green">076</FONT> line = bi.readLine();<a name="line.76"></a>
<FONT color="green">077</FONT> dParam = new Long((line.substring(0, line.indexOf('#'))).trim())<a name="line.77"></a>
<FONT color="green">078</FONT> .longValue();<a name="line.78"></a>
<FONT color="green">079</FONT> linecnt++;<a name="line.79"></a>
<FONT color="green">080</FONT> line = bi.readLine();<a name="line.80"></a>
<FONT color="green">081</FONT> gParam = new Double((line.substring(0, line.indexOf('#'))).trim())<a name="line.81"></a>
<FONT color="green">082</FONT> .doubleValue();<a name="line.82"></a>
<FONT color="green">083</FONT> linecnt++;<a name="line.83"></a>
<FONT color="green">084</FONT> line = bi.readLine();<a name="line.84"></a>
<FONT color="green">085</FONT> sParam = new Double((line.substring(0, line.indexOf('#'))).trim())<a name="line.85"></a>
<FONT color="green">086</FONT> .doubleValue();<a name="line.86"></a>
<FONT color="green">087</FONT> linecnt++;<a name="line.87"></a>
<FONT color="green">088</FONT> line = bi.readLine();<a name="line.88"></a>
<FONT color="green">089</FONT> rParam = new Double((line.substring(0, line.indexOf('#'))).trim())<a name="line.89"></a>
<FONT color="green">090</FONT> .doubleValue();<a name="line.90"></a>
<FONT color="green">091</FONT> linecnt++;<a name="line.91"></a>
<FONT color="green">092</FONT> line = bi.readLine();<a name="line.92"></a>
<FONT color="green">093</FONT> uParam = (line.substring(0, line.indexOf('#'))).trim();<a name="line.93"></a>
<FONT color="green">094</FONT> linecnt++;<a name="line.94"></a>
<FONT color="green">095</FONT> line = bi.readLine();<a name="line.95"></a>
<FONT color="green">096</FONT> highFeatIdx = new Long((line.substring(0, line.indexOf('#'))).trim())<a name="line.96"></a>
<FONT color="green">097</FONT> .longValue();<a name="line.97"></a>
<FONT color="green">098</FONT> linecnt++;<a name="line.98"></a>
<FONT color="green">099</FONT> line = bi.readLine();<a name="line.99"></a>
<FONT color="green">100</FONT> trainDocs = new Long((line.substring(0, line.indexOf('#'))).trim())<a name="line.100"></a>
<FONT color="green">101</FONT> .longValue();<a name="line.101"></a>
<FONT color="green">102</FONT> linecnt++;<a name="line.102"></a>
<FONT color="green">103</FONT> line = bi.readLine();<a name="line.103"></a>
<FONT color="green">104</FONT> numSupVecs = new Long((line.substring(0, line.indexOf('#'))).trim())<a name="line.104"></a>
<FONT color="green">105</FONT> .longValue();<a name="line.105"></a>
<FONT color="green">106</FONT> linecnt++;<a name="line.106"></a>
<FONT color="green">107</FONT> line = bi.readLine();<a name="line.107"></a>
<FONT color="green">108</FONT> threshold = new Double((line.substring(0, line.indexOf('#'))).trim())<a name="line.108"></a>
<FONT color="green">109</FONT> .doubleValue();<a name="line.109"></a>
<FONT color="green">110</FONT> <a name="line.110"></a>
<FONT color="green">111</FONT> bi.close();<a name="line.111"></a>
<FONT color="green">112</FONT> <a name="line.112"></a>
<FONT color="green">113</FONT> } catch (IOException ioe) {<a name="line.113"></a>
<FONT color="green">114</FONT> ioe.printStackTrace();<a name="line.114"></a>
<FONT color="green">115</FONT> throw new ParseException("Parse error in header at line " + linecnt<a name="line.115"></a>
<FONT color="green">116</FONT> + ": " + ioe.getMessage() + " of File: '" + file.toString()<a name="line.116"></a>
<FONT color="green">117</FONT> + "'. Not a svmlight-model file ?!", 0);<a name="line.117"></a>
<FONT color="green">118</FONT> } catch (NullPointerException npe) {<a name="line.118"></a>
<FONT color="green">119</FONT> throw new ParseException("Parse error in header at line " + linecnt<a name="line.119"></a>
<FONT color="green">120</FONT> + ": " + npe.getMessage() + " of File: '" + file.toString()<a name="line.120"></a>
<FONT color="green">121</FONT> + "'. Not a svmlight-model file ?!", 0);<a name="line.121"></a>
<FONT color="green">122</FONT> } catch (IndexOutOfBoundsException ibe) {<a name="line.122"></a>
<FONT color="green">123</FONT> throw new ParseException("Parse error in header at line " + linecnt<a name="line.123"></a>
<FONT color="green">124</FONT> + ": " + ibe.getMessage() + " of File: '" + file.toString()<a name="line.124"></a>
<FONT color="green">125</FONT> + "'. Not a svmlight-model file ?!", 0);<a name="line.125"></a>
<FONT color="green">126</FONT> } catch (NumberFormatException nfe) {<a name="line.126"></a>
<FONT color="green">127</FONT> throw new ParseException("Parse error in header at line " + linecnt<a name="line.127"></a>
<FONT color="green">128</FONT> + ": " + nfe.getMessage() + " of File: '" + file.toString()<a name="line.128"></a>
<FONT color="green">129</FONT> + "'. Not a svmlight-model file ?!", 0);<a name="line.129"></a>
<FONT color="green">130</FONT> }<a name="line.130"></a>
<FONT color="green">131</FONT> <a name="line.131"></a>
<FONT color="green">132</FONT> lfv = SVMLightTrainer.getLabeledFeatureVectorsFromURL(file, linecnt);<a name="line.132"></a>
<FONT color="green">133</FONT> <a name="line.133"></a>
<FONT color="green">134</FONT> return new SVMLightModel(format, kType, dParam, gParam, sParam, rParam,<a name="line.134"></a>
<FONT color="green">135</FONT> uParam, highFeatIdx, trainDocs, numSupVecs, threshold, lfv);<a name="line.135"></a>
<FONT color="green">136</FONT> }<a name="line.136"></a>
<FONT color="green">137</FONT> <a name="line.137"></a>
<FONT color="green">138</FONT> private LabeledFeatureVector[] m_docs;<a name="line.138"></a>
<FONT color="green">139</FONT> <a name="line.139"></a>
<FONT color="green">140</FONT> private long m_dParam;<a name="line.140"></a>
<FONT color="green">141</FONT> <a name="line.141"></a>
<FONT color="green">142</FONT> private String m_format;<a name="line.142"></a>
<FONT color="green">143</FONT> <a name="line.143"></a>
<FONT color="green">144</FONT> private double m_gParam;<a name="line.144"></a>
<FONT color="green">145</FONT> <a name="line.145"></a>
<FONT color="green">146</FONT> private long m_highFeatIdx;<a name="line.146"></a>
<FONT color="green">147</FONT> <a name="line.147"></a>
<FONT color="green">148</FONT> private Kernel m_kernel;<a name="line.148"></a>
<FONT color="green">149</FONT> <a name="line.149"></a>
<FONT color="green">150</FONT> private long m_kType;<a name="line.150"></a>
<FONT color="green">151</FONT> <a name="line.151"></a>
<FONT color="green">152</FONT> private long m_numSupVecs;<a name="line.152"></a>
<FONT color="green">153</FONT> <a name="line.153"></a>
<FONT color="green">154</FONT> private double m_rParam;<a name="line.154"></a>
<FONT color="green">155</FONT> <a name="line.155"></a>
<FONT color="green">156</FONT> private double m_sParam;<a name="line.156"></a>
<FONT color="green">157</FONT> <a name="line.157"></a>
<FONT color="green">158</FONT> private double m_threshold;<a name="line.158"></a>
<FONT color="green">159</FONT> <a name="line.159"></a>
<FONT color="green">160</FONT> private long m_trainDocs;<a name="line.160"></a>
<FONT color="green">161</FONT> <a name="line.161"></a>
<FONT color="green">162</FONT> private String m_uParam;<a name="line.162"></a>
<FONT color="green">163</FONT> <a name="line.163"></a>
<FONT color="green">164</FONT> protected SVMLightModel(String format, long ktype, long dparm, double gparm,<a name="line.164"></a>
<FONT color="green">165</FONT> double sparm, double rparm, String uparm, long hfi, long tdocs, long nsv,<a name="line.165"></a>
<FONT color="green">166</FONT> double threshold, LabeledFeatureVector[] docs) {<a name="line.166"></a>
<FONT color="green">167</FONT> m_format = format;<a name="line.167"></a>
<FONT color="green">168</FONT> m_kType = ktype;<a name="line.168"></a>
<FONT color="green">169</FONT> m_dParam = dparm;<a name="line.169"></a>
<FONT color="green">170</FONT> m_gParam = gparm;<a name="line.170"></a>
<FONT color="green">171</FONT> m_sParam = sparm;<a name="line.171"></a>
<FONT color="green">172</FONT> m_rParam = rparm;<a name="line.172"></a>
<FONT color="green">173</FONT> m_uParam = uparm;<a name="line.173"></a>
<FONT color="green">174</FONT> m_highFeatIdx = hfi;<a name="line.174"></a>
<FONT color="green">175</FONT> m_trainDocs = tdocs;<a name="line.175"></a>
<FONT color="green">176</FONT> m_numSupVecs = nsv;<a name="line.176"></a>
<FONT color="green">177</FONT> m_threshold = threshold;<a name="line.177"></a>
<FONT color="green">178</FONT> m_docs = docs;<a name="line.178"></a>
<FONT color="green">179</FONT> <a name="line.179"></a>
<FONT color="green">180</FONT> switch ((int) m_kType) {<a name="line.180"></a>
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