import?java.util.ArrayList;

import?cc.mallet.types.*;
import?cc.mallet.classify.Classifier;
import?cc.mallet.classify.ClassifierTrainer;
import?cc.mallet.classify.NaiveBayesTrainer;
import?cc.mallet.classify.Trial;
import?cc.mallet.pipe.*;
import?cc.mallet.pipe.iterator.*;

import?java.util.regex.*;
import?java.io.*;

public?class?SpamDetector?{

	public?static?void?main（String[]?args）{
		
????	String?stopListFilePath?=?“data/stoplists/en.txt“;
????	String?dataFolderPath?=?“data/ex6DataEmails/train“;
????	String?testFolderPath?=?“data/ex6DataEmails/test“;
????	
		ArrayList?pipeList?=?new?ArrayList（）;
		pipeList.add（new?Input2CharSequence（“UTF-8“））;
		Pattern?tokenPattern?=?Pattern.compile（“[\\p{L}\\p{N}_]+“）;
		pipeList.add（new?CharSequence2TokenSequence（tokenPattern））;
		pipeList.add（new?TokenSequenceLowercase（））;
		pipeList.add（new?TokenSequenceRemoveStopwords（new?File（stopListFilePath）?“utf-8“?false?false?false））;
		pipeList.add（new?TokenSequence2FeatureSequence（））;
		pipeList.add（new?FeatureSequence2FeatureVector（））;
		pipeList.add（new?Target2Label（））;
		SerialPipes?pipeline?=?new?SerialPipes（pipeList）;
		
		FileIterator?folderIterator?=?new?FileIterator（
				new?File[]?{new?File（dataFolderPath）}
		?????????new?TxtFilter（）
		?????????FileIterator.LAST_DIRECTORY）;

		
		InstanceList?instances?=?new?InstanceList（pipeline）;
		
		instances.addThruPipe（folderIterator）;
		
		ClassifierTrainer?classifierTrainer?=?new?NaiveBayesTrainer（）;
		Classifier?classifier?=?classifierTrainer.train（instances）;

		InstanceList?testInstances?=?new?InstanceList（classifier.getInstancePipe（））;
		folderIterator?=?new?FileIterator（
				new?File[]?{new?File（testFolderPath）}
		?????????new?TxtFilter（）
		?????????FileIterator.LAST_DIRECTORY）;
????????testInstances.addThruPipe（folderIterator）;
????????
????????Trial?trial?=?new?Trial（classifier?testInstances）;
????????
????????System.out.println（“Accuracy:?“?+?trial.getAccuracy（））;
????????System.out.println（“F1?for?class?‘spam‘:?“?+?trial.getF1（“spam“））;

????????System.out.println（“Precision?for?class?‘“?+
???????????????????????????classifier.getLabelAlphabet（）.lookupLabel（1）?+?“‘:?“?+
???????????????????????????trial.getPrecision（1））;

????????System.out.println（“Recall?for?class?‘“?+
???????????????????????????classifier.getLabelAlphabet（）.lookupLabel（1）?+?“‘:?“?+
???????????????????????????trial.getRecall（1））;

		
		

	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????126894??2016-04-26?13:55??MachineLearninginJava_Code\B03686_Software?list.pdf
?????目錄???????????0??2016-04-26?14:00??MachineLearninginJava_Code\Code\
?????文件?????????417??2016-04-03?07:21??MachineLearninginJava_Code\Code\.gitignore
?????目錄???????????0??2016-04-26?13:44??MachineLearninginJava_Code\Code\MLJ-Chapter10\
?????文件?????????402??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\.classpath
?????文件?????????372??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\.project
?????目錄???????????0??2016-04-26?13:44??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\
?????目錄???????????0??2016-04-26?13:44??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\
?????目錄???????????0??2016-04-26?13:43??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\
?????文件????????2560??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\001.txt
?????文件????????2252??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\002.txt
?????文件????????1552??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\003.txt
?????文件????????2412??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\004.txt
?????文件????????1570??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\005.txt
?????文件????????1187??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\006.txt
?????文件????????1669??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\007.txt
?????文件????????1922??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\008.txt
?????文件????????1494??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\009.txt
?????文件????????1449??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\010.txt
?????文件????????1144??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\011.txt
?????文件????????1847??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\012.txt
?????文件????????1830??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\013.txt
?????文件????????2981??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\014.txt
?????文件????????3808??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\015.txt
?????文件????????1393??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\016.txt
?????文件????????1299??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\017.txt
?????文件????????1002??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\018.txt
?????文件????????1733??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\019.txt
?????文件????????3854??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\020.txt
?????文件????????2046??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\021.txt
?????文件????????1933??2016-04-03?07:21??MachineLearninginJava_Code\Code\MLJ-Chapter10\data\bbc\business\022.txt
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