歸納系統：　可以把一大段文章歸納成一個小段落。-Inductive system: can be a long article, summed up into a small paragraph.

NClassifier is a .NET based text classification classification engine which supports, among others, Bayesian classification and text summarization.

tf–idf, short for term frequency–inverse document frequency, is a numerical statistic that is intended to reflect how important a word is to a document in a collection or corpus.[1]:8 It is often used as a weighting factor in information retrieval an