public void TestMakeMatrix()
{
var newsFeatures = new NewsFeatures();
var rssResult = newsFeatures.GetArticleWords();
var matrixTuple = newsFeatures.MakeMatrix(rssResult.Item1, rssResult.Item2);
TestOutput(JsonConvert.SerializeObject(matrixTuple.Item2.Take(10)));
TestOutput(rssResult.Item3[1]);
TestOutput(JsonConvert.SerializeObject(matrixTuple.Item1[1].Take(10)));
}
public void TestShowFeatures()
{
var newsFeatures = new NewsFeatures();
(var allW, var artW, var artT) = newsFeatures.GetArticleWords();
(var wordMatrix, var wordVec) = newsFeatures.MakeMatrix(allW, artW);
var nmf = new Nmf(o => TestOutput(o.ToString()));
var matrix = DenseMatrix.OfRows(wordMatrix);
(var weights, var feat) = nmf.Factorize(matrix, 20, 50);
newsFeatures.ShowFeatures(weights, feat, artT, wordVec);
}
public void TestMakeMatrix()
{
var newsFeatures = new NewsFeatures();
(var allW, var artW, var artT) = newsFeatures.GetArticleWords();
(var wordMatrix, var wordVec) = newsFeatures.MakeMatrix(allW, artW);
// 单词向量的前10个词
TestOutput(JsonConvert.SerializeObject(wordVec.Take(10)));
// 第二篇文章的标题
TestOutput(artT[1]);
// 第二篇文章的在单词矩阵中对应的数据行的前10个值
TestOutput(JsonConvert.SerializeObject(wordMatrix[1].Take(10)));
}
