Exploring a new space of features for document classification: figure clustering. - Nawei Chen; Hagit Shatkay; Dorothea Blostein (CASCON, 2006)

Use of Figures in Literature Mining for Biomedical Digital Libraries. - Nawei Chen; Hagit Shatkay; Dorothea Blostein (DIAL, 2006)

Integrating image data into biomedical text categorization. - Hagit Shatkay; Nawei Chen; Dorothea Blostein (ISMB (Supplement of Bioinformatics), 2006)

A survey of document image classification: problem statement, classifier architecture and performance evaluation. - Nawei Chen; Dorothea Blostein (Int. J. Document Anal. Recognit., 2007)