Example #1
0
        //从词汇表文件中读词并构建词表和hash表
        //由于词汇表中的词语不存在重复,因此与LearnVocabFromTrainFile相比没有做重复词汇的检测
        void ReadVocab(string filename)
        {
            vocab.Clear();
            StreamReader file = new StreamReader(filename);

            while (!file.EndOfStream)
            {
                string[]   fields = file.ReadLine().Split('\t');
                vocab_word word1  = new vocab_word();
                word1.word = fields[0];
                word1.cn   = Convert.ToInt64(fields[1]);
                if (!vocab.TryAdd(fields[0], word1))
                {
                    Console.WriteLine("添加单词失败");
                }
            }
        }
Example #2
0
 //为一个词构建一个vocab_word结构对象,并添加到词表中
 //词频初始化为0,hash值用之前的函数计算,
 //返回该词在词表中的位置
 void AddWordToVocab(string word)
 {
     if (word.Length > MAX_STRING)
     {
         word = word.Substring(0, MAX_STRING);
     }
     if (!word_information.ContainsKey(word))
     {
         vocab_word one_vocab_word = new vocab_word();
         one_vocab_word.cn   = 1;
         one_vocab_word.word = word;
         if (!word_information.TryAdd(word, one_vocab_word))
         {
             Console.WriteLine("插入单词失败");
         }
     }
     else
     {
         word_information[word].cn += 1;
     }
 }
Example #3
0
 //输入两个词的结构体,返回二者的词频差值
 Int64 VocabCompare(vocab_word a, vocab_word b)
 {
     return(b.cn - a.cn);
 }