Document Clustering and Text Summarization

This paper describes a text mining tool that performs two tasks, namely document clustering and text summarization. These tasks have, of course, their corresponding counterpart in “conventional” data mining. However, the textual, unstructured nature of documents makes these two text mining tasks considerably more difficult than their data mining counterparts. In our system document clustering is performed by using the Autoclass data mining algorithm. Our text summarization algorithm is based on computing the value of aTF-ISF(term frequency – inverse sentence frequency) measure for each word, which is anadaptation of the conventional TF-IDF (term frequency – inverse document frequency)measure of information retrieval. Sentences with high values of TF-ISF are selected to producea summary of the source text. The system has been evaluated on real-world documents, and the results are satisfactory