The Effect of Topological Structure on Hierarchical Text Categorization. - Stephen D'Alessio; Keitha A. Murray; Robert Schiaffino; Aaron Kershenbaum (VLC@COLING/ACL, 1998)

Category Levels in Hierarchical Text Categorization. - Stephen D'Alessio; Keitha A. Murray; Robert Schiaffino; Aaron Kershenbaum (EMNLP, 1998)

The Effect of Using Hierarchical Classifiers in Text Categorization. - Stephen D'Alessio; Keitha A. Murray; Robert Schiaffino; Aaron Kershenbaum (RIAO, 2000)