Digital Libraries, Joint Conference on (2003)
Houston, Texas USA
May 27, 2003 to May 31, 2003
Hui Han , Pennsylvania State University
C. Lee Giles , Pennsylvania State University
Eren Manavoglu , Pennsylvania State University
Hongyuan Zha , Pennsylvania State University
Zhenyue Zhang , Zhejiang University
Edward A. Fox , Virginia Polytechnic Institute and State University
Automatic metadata generation provides scalability and usability for digital libraries and their collections. Machine learning methods offer robust and adaptable automatic metadata extraction. We describe a Support Vector Machine classification-based method for metadata extraction from header part of research papers and show that it outperforms other machine learning methods on the same task. The method first classifies each line of the header into one or more of 15 classes. An iterative convergence procedure is then used to improve the line classification by using the predicted class labels of its neighbor lines in the previous round. Further metadata extraction is done by seeking the best chunk boundaries of each line. We found that discovery and use of the structural patterns of the data and domain based word clustering can improve the metadata extraction performance. An appropriate feature normalization also greatly improves the classification performance. Our metadata extraction method was originally designed to improve the metadata extraction quality of the digital libraries Citeseer and EbizSearch. We believe it can be generalized to other digital libraries.
Z. Zhang, C. L. Giles, E. A. Fox, H. Zha, E. Manavoglu and H. Han, "Automatic Document Metadata Extraction Using Support Vector Machines," Digital Libraries, Joint Conference on(JCDL), Houston, Texas USA, 2003, pp. 37.