Learning to Generate a Table-of-Contents with Supportive Knowledge

Viet Cuong NGUYEN  Le Minh NGUYEN  Akira SHIMAZU  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E94-D   No.3   pp.423-431
Publication Date: 2011/03/01
Online ISSN: 1745-1361
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Section on Knowledge Discovery, Data Mining and Creativity Support System)
Category: 
Keyword: 
text summarization,  supportive knowledge,  semi-supervised learning,  

Full Text: PDF(572.9KB)
>>Buy this Article


Summary: 
In the text summarization field, a table-of-contents is a type of indicative summary that is especially suited for locating information in a long document, or a set of documents. It is also a useful summary for a reader to quickly get an overview of the entire contents. The current models for generating a table-of-contents produced relatively low quality output with many meaningless titles, or titles that have no overlapping meaning with the corresponding contents. This problem may be due to the lack of semantic information and topic information in those models. In this research, we propose to integrate supportive knowledge into the learning models to improve the quality of titles in a generated table-of-contents. The supportive knowledge is derived from a hierarchical clustering of words, which is built from a large collection of raw text, and a topic model, which is directly estimated from the training data. The relatively good results of the experiments showed that the semantic and topic information supplied by supportive knowledge have good effects on title generation, and therefore, they help to improve the quality of the generated table-of-contents.