/// <summary>
/// 清洗训练样本,返回d和total
/// </summary>
/// <param name="negFilePath">负面词训练集</param>
/// <param name="negWords">负面词库文本</param>
/// <param name="posFilePath">正面词训练集</param>
/// <param name="posWords">正面词库文本</param>
/// <param name="d">存储正面和负面词集的字典</param>
/// <param name="stopwords">排除词</param>
public static void Train_data(string negWords, string negFilters, string posWords, string posFilters,
ref Dictionary <string, AddOneProb> d, string stopwords)
{
List <Tuple <List <string>, string> > data = new List <Tuple <List <string>, string> >();
var sent_cut = new Jieba();
sent_cut.NegWords = negFilters;
sent_cut.PosWords = posFilters;
foreach (var sent in posWords.Replace("\r", "").Split('\n'))
{
if (string.IsNullOrWhiteSpace(sent))
{
continue;
}
sent_cut.doc = FilterSymbol(sent);
sent_cut.stopwords = stopwords;
var words = sent_cut.handle_sentiment(false);
foreach (var word in words)
{
d["pos"].Add(word, CoreCalculations.IDCount, 1);
}
if (words != null && words.Count > 0)
{
data.Add(new Tuple <List <string>, string>(words, "pos"));
}
}
Console.WriteLine("正面词库导入完毕");
foreach (var sent in negWords.Replace("\r", "").Split('\n'))
{
if (string.IsNullOrWhiteSpace(sent))
{
continue;
}
sent_cut.doc = FilterSymbol(sent);
sent_cut.stopwords = stopwords;
var words = sent_cut.handle_sentiment();
foreach (var word in words)
{
d["neg"].Add(word, CoreCalculations.IDCount, 1);
}
if (words != null && words.Count > 0)
{
data.Add(new Tuple <List <string>, string>(words, "neg"));
}
}
Console.WriteLine("负面词库导入完毕");
foreach (var k in d)
{//计算频率
k.Value.CalculatRate();
}
for (int i = 0; i < 2; i++)
{
foreach (var d_ in data)
{
var c = d_.Item2.ToString();
CoreCalculations.Sensor(d, d_.Item1, c);//每一条数据做训练
}
}
}
static void Main(string[] args)
{
var sentimentJson = FileHandle.ReadTxtToEnd(SentimentFilepath + "sentiment_json.txt");
var d = Train.Load(sentimentJson);
var posFilters = FileHandle.ReadTxtToEnd(SentimentFilepath + "pos"); //正面词
var posWords = FileHandle.ReadTxtToEnd(SentimentFilepath + "pos_train"); //正面训练集
var negFilters = FileHandle.ReadTxtToEnd(SentimentFilepath + "neg"); //负面词
var negWords = FileHandle.ReadTxtToEnd(SentimentFilepath + "neg_train"); //负面训练集
var stopWords = FileHandle.ReadTxtToEnd(SentimentFilepath + "stopwords"); //不参与计算词
Train.Train_data(negWords, negFilters, posWords, posFilters, ref d, stopWords); //导入训练集（可以自己根据需要替换训练集）
var test = FileHandle.ReadTxtToEnd(SentimentFilepath + "testpos"); //测试集
double countResult = 0;
double posCount = 0;
double negCount = 0;
Dictionary <string, double> limitCount = new Dictionary <string, double>();
limitCount.Add("neg", 0);
limitCount.Add("pos", 0);
foreach (var t in test.Replace("\r", "").Split('\n'))
{
if (string.IsNullOrWhiteSpace(t))
{
continue;
}
countResult++;
var sent = CoreCalculations.Classify_(t, d, stopWords);
double limit = Math.Abs(sent["pos"] - sent["neg"]);
if (sent["neg"] > sent["pos"])
{
if (limit <= 0.2)
{
limitCount["neg"]++;
}
negCount++;
}
else
{
if (limit <= 0.2)
{
limitCount["pos"]++;
}
posCount++;
}
}
Console.WriteLine("模糊率：" + limitCount.Sum(l => l.Value) / countResult);
Console.WriteLine("负面率：" + negCount / countResult);
Console.WriteLine("正面率：" + posCount / countResult);
countResult -= limitCount.Sum(l => l.Value);
negCount -= limitCount["neg"];
posCount -= limitCount["pos"];
Console.WriteLine("去模糊后负面率：" + negCount / countResult);
Console.WriteLine("去模糊后正面率：" + posCount / countResult);
Console.ReadLine();
}
