1. Damerau, F., Zhang, T., Weiss, S., Indurkhya, N.: Text Categorization for a Comprehensive Time-Dependent Benchmark. Information Processing and Management 40(2), 209–221 (2004)
2. Debole, F., Sebastiani, F.: An Analysis of the Relative Hardness of Reuters–21578 Subsets. Journal of the American Society for Information Science and Technology 56(6), 584–596 (2005)
3. Di Nunzio, G.M.: A Bidimensional View of Documents for Text Categorization. In: S. McDonald, J. Tait (eds.) Proceedings of the 26th European Conference on Information Retrieval (ECIR 2004), Lecture Notes in Computer Science (LNCS), Vol. 2997, pp. 112–126. Springer, Heidelberg, Germany (2004)
4. Di Nunzio, G.M.: Cross–comparison for Two-dimensional Text Categorization. In: A. Apostolico, M. Melucci (eds.) Proceedings of the 11th Symposium on String Processing and Information Retrieval (SPIRE 2004), Lecture Notes in Computer Science (LNCS), Vol. 3246, pp. 125–126. Springer, Heidelberg, Germany (2004)
5. Di Nunzio, G.M.: 3–D Environment to Represent Textual Documents for Duplicate Detection and Collection Examination. In: T. Catarci, S. Christodoulakis, A. Del Bimbo (eds.) Seventh International Workshop of the EU Network of Excellence DELOS on Audio-Visual Content and Information Visualization in Digital Libraries (AVIVDiLib-05), pp. 12–21. Centromedia, Capannori (Lucca), Italy, Cortona (AR), Italy (2005)