Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	Akaike, 1974	H. Akaike. A new look at the statistical model identification. IEEE Trans. on Automatic Control, 19(6):716-- 723, 1974.
	Anderberg, 1973	M. R. Anderberg. Cluster Analysis for Applications. Academic Press, 1973.
	Cormack, 1971	R. M. Cormack. A review of classification. Journal of the Royal Statistical Society, 134:321--367, 1971.
	Croft, 1980	W. B. Croft. A model of cluster searching based on classification. Information Systems, 5:189--195, 1980.
	Croft, 1981	W.B. Croft. Document representation in probabilistic models of information retrieval. Journal of the American Society for Information Science, 32(6):451--457, 1981.
	Cutting and Pedersen, 1993	D. Cutting and J. Pedersen. The xerox part-of-speech tagger version 1.0. ftp://parcftp, xerox, com, 1993.
	El-Hamdouchi and Willett, 1986	A. El-Hamdouchi , P. Willett, Hierarchic document classification using Ward's clustering method, Proceedings of the 9th annual international ACM SIGIR conference on Research and development in information retrieval, p.149-156, September 1986, Palazzo dei Congressi, Pisa, Italy  [doi>10.1145/253168.253200]
	Fuhr, 1989	Norbert Fuhr, Models for retrieval with probabilistic indexing, Information Processing and Management: an International Journal, v.25 n.1, p.55-72, 1989  [doi>10.1016/0306-4573(89)90091-5 ]
	Griffiths et al., 1984	A. Griffiths, L. A. Robinson, and P. Willett. Hierarchic agglomerative clustering methods for automatic document classification. Journal of Documentation, 40(3): 175- -205, 1984.
	Griffiths et al., 1986	A. Griffiths, H. C. Luckhurst, and P. Willett. Using interdocument similarity information in document retrieval systems. Journal of the American Society for Information Science, 37(1):3--11, 1986.
	Iwayama and Tokunaga, 1994	Makoto Iwayama , Takenobu Tokunaga, A probabilistic model for text categorization: based on a single random variable with multiple values, Proceedings of the fourth conference on Applied natural language processing, October 13-15, 1994, Stuttgart, Germany  [doi>10.3115/974358.974395]
	Iwayama and Tokunaga, 1995	M. Iwayama and T. Tokunaga. Hierarchical bayesian clustering for automatic text classification. In Proceedings of the International Joint Conference on Artificial Intelligence, 1995. (to appear).
	Jardine and Van Rijsbergen, 1971	N. Jardine and C. J. Van Rijsbergen. The use of hierarchic clustering in information retrieval. Information Storage and Retrieval, 7:217--240, 1971.
	Jiyûkokuminsya, 1992	Jiy0kokuminsya. Gendai y0go no kisotisiki. JiyOkokuminsya, 1992. (in Japanese).
	Kwok, 1990	K. L. Kwok, Experiments with a component theory of probabilistic information retrieval based on single terms as document components, ACM Transactions on Information Systems (TOIS), v.8 n.4, p.363-386, Oct. 1990  [doi>10.1145/102675.102677]
	Lewis, 1992	David D. Lewis, An evaluation of phrasal and clustered representations on a text categorization task, Proceedings of the 15th annual international ACM SIGIR conference on Research and development in information retrieval, p.37-50, June 21-24, 1992, Copenhagen, Denmark  [doi>10.1145/133160.133172]
	Liberman, 1991	M. Liberman, editor. ACI,/DCI (CD-ROM). Association for Computational Linguistics Data Collection initiative, University of Pennsylvania, September 1991.
	Masand et al., 1992	Brij Masand , Gordon Linoff , David Waltz, Classifying news stories using memory based reasoning, Proceedings of the 15th annual international ACM SIGIR conference on Research and development in information retrieval, p.59-65, June 21-24, 1992, Copenhagen, Denmark  [doi>10.1145/133160.133177]
	Matsumoto et al., 1994	Y. Matsumoto, S. Kurohashi, T. Utsuro, Y. Myoki, and M. Nagao. JUMAN version 2.0. ftp://cactus, aist-nara, ac. jp/pub/juman, 1994.
	Rissanen, 1989	Jorma Rissanen, Stochastic Complexity in Statistical Inquiry Theory, World Scientific Publishing Co., Inc., River Edge, NJ, 1989
	Robertson and Sparck Jones, 1976	S. E. Robertson and K. Sparck Jones. Relevance weighting of search terms. Journal of the American Soc&ty for Information Science, 27:129--146, 1976.
	Salton and McGill, 1983	Gerard Salton , Michael J. McGill, Introduction to Modern Information Retrieval, McGraw-Hill, Inc., New York, NY, 1986
	Salton and Yang, 1973	G. Salton and C. S. Yang. On the specification of term values in automatic indexing. Journal of Documentation, 29(4):351--372, 1973.
	Stanfill and Waltz, 1986	Craig Stanfill , David Waltz, Toward memory-based reasoning, Communications of the ACM, v.29 n.12, p.1213-1228, Dec. 1986  [doi>10.1145/7902.7906]
	van Rijsbergen, 1974	C.J. van Rijsbergen. Further experiments with hierarchic clustering in document retrieval. Information Storage and Retrieval, 10:1--14, 1974.
	Weiss and Kulikowski, 1990	S. M. Weiss and C. Kulikowski. Computer Systems That Learn. Morgan Kaufmann, 1990.
	Willett, 1988	Peter Willett, Recent trends in hierarchic document clustering: a critical review, Information Processing and Management: an International Journal, v.24 n.5, p.577-597, 1988  [doi>10.1016/0306-4573(88)90027-1 ]
	Willisson, 1991	P Willisson. Ispell Version 3.0.06. ftp://ftp, cs.ucla, edu/pub/ispell, 1991.

• M⁴: a metamodel for data preprocessing Proceedings of the 4th ACM international workshop on Data warehousing and OLAP
  Anca Vaduva ,  Jörg-Uwe Kietz ,  Regina Zücker
  
  
• Data structures for quadtree approximation and compression Communications of the ACM   28, 9
  Hanan Samet
  
  
• A hierarchical single-key-lock access control using the Chinese remainder theorem Proceedings of the 1992 ACM/SIGAPP Symposium on Applied computing
  Kim S. Lee ,  Huizhu Lu ,  D. D. Fisher
  
  
• The GemStone object database management system Communications of the ACM   34, 10
  Paul Butterworth ,  Allen Otis ,  Jacob Stein
  
  
• Putting innovation to work: adoption strategies for multimedia communication systems Communications of the ACM   34, 12
  Ellen Francik ,  Susan Ehrlich Rudman ,  Donna Cooper ,  Stephen Levine