如何使用SentiWordNet获取String或形容词的语义方向

时间:2013-05-07 02:32:47

标签: java wordnet sentiment-analysis

我正在做一个关于情绪分析的项目。我需要字符串或形容词的语义方向,所以我建议使用Stackoverflow“如何使用SentiWordNet”的参考文章中的SentiWordNet_3.0.0。我运行了代码,但每次得到以下输出。

java.lang.ArrayIndexOutOfBoundsException: 2 
at qtag.SWN3.(SWN3.java:29) 
at qtag.SWN3.main(SWN3.java:105) 
0.0

我已经使用不同的字符串作为输入运行代码,但结果是相同的。我已经删除了SentiWordNet_3.0.0_20130122.txt文件的第一部分或垃圾部分。我的代码有什么问题。我该怎么办呢?请帮我。谢谢。 这是我的代码:

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Set;
import java.util.Vector;
public class SWN3 {

private String pathToSWN = "C:/Users/Monalisa/Desktop/SentiWordNet_3.0.0/home/swn/www/admin/dump/SentiWordNet_3.0.0_20130122.txt";
        private HashMap<String, Double>_dict;

        public SWN3(){

            _dict = new HashMap<String, Double>();
            HashMap<String, Vector<Double>> _temp = new HashMap<String, Vector<Double>>();
            try{
                BufferedReader csv =  new BufferedReader(new FileReader(pathToSWN));
                String line = "";           
                while((line = csv.readLine()) != null)
                {
                    String[] data = line.split("\t");
                    Double score = Double.parseDouble(data[2])-Double.parseDouble(data[3]);
                    String[] words = data[4].split(" ");
                    for(String w:words)
                    {
                        String[] w_n = w.split("#");
                        w_n[0] += "#"+data[0];
                        int index = Integer.parseInt(w_n[1])-1;
                        if(_temp.containsKey(w_n[0]))
                        {
                            Vector<Double> v = _temp.get(w_n[0]);
                            if(index>v.size())
                                for(int i = v.size();i<index; i++)
                                    v.add(0.0);
                            v.add(index, score);
                            _temp.put(w_n[0], v);
                        }
                        else
                        {
                            Vector<Double> v = new Vector<Double>();
                            for(int i = 0;i<index; i++)
                                v.add(0.0);
                            v.add(index, score);
                            _temp.put(w_n[0], v);
                        }
                    }
                }
                Set<String> temp = _temp.keySet();
                for (Iterator<String> iterator = temp.iterator(); iterator.hasNext();) {
                    String word = iterator.next();
                    Vector<Double> v = _temp.get(word);
                    double score = 0.0;
                    double sum = 0.0;
                    for(int i = 0; i < v.size(); i++)
                        score += ((double)1/(double)(i+1))*v.get(i);
                    for(int i = 1; i<=v.size(); i++)
                        sum += (double)1/(double)i;
                    score /= sum;
                    String sent = "";               
                    if(score>=0.75)
                        sent = "strong_positive";
                    else
                    if(score > 0.25 && score<=0.5)
                        sent = "positive";
                    else
                    if(score > 0 && score>=0.25)
                        sent = "weak_positive";
                    else
                    if(score < 0 && score>=-0.25)
                        sent = "weak_negative";
                    else
                    if(score < -0.25 && score>=-0.5)
                        sent = "negative";
                    else
                    if(score<=-0.75)
                        sent = "strong_negative";
                    _dict.put(word, score);
                }
            }
            catch(Exception e){e.printStackTrace();}        
        }

public Double extract(String word)
{
   Double total = new Double(0);
    if(_dict.get(word+"#n") != null)
         total = _dict.get(word+"#n") + total;
    if(_dict.get(word+"#a") != null)
        total = _dict.get(word+"#a") + total;
    if(_dict.get(word+"#r") != null)
        total = _dict.get(word+"#r") + total;
    if(_dict.get(word+"#v") != null)
        total = _dict.get(word+"#v") + total;
    return total;
}

public static void main(String[] args) {
    SWN3 test = new SWN3();
    String sentence="what a super great day";
    String[] words = sentence.split("\\s+"); 
    double totalScore = 0;
    for(String word : words) {
        word = word.replaceAll("([^a-zA-Z\\s])", "");
        if (test.extract(word) == null)
            continue;
        totalScore += test.extract(word);
    }
    System.out.println(totalScore);
}

}    

1 个答案:

答案 0 :(得分:0)

我希望你已经从sentiwordnet(sentiwordnet.isti.cnr.it)上的给定例子中获取了源代码。所以问题出在sentiwordnet_3.0.0_20130122.txt“文件......它应该从第一个形容词开始,所以删除所有的评论....最后有一些额外的空格删除它们。 所以简而言之,第一行的文件开头应该是

**a 00001740 0.125 0 able#1 (usually followed by to) having the necessary means or skill or know-how or authority to do something; "able to swim"; "she was ........**

并且文件的最后一行应该是

**v 02772310 0.125 0 deflagrate#1 cause to burn rapidly and with great intensity; "care must be exercised when this substance is to be deflagrated"**

除此之外,我认为应该是错误,但要纠正它 private HashMap<String,Double> _dict ;