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Citation Request:
This breast cancer domain was obtained from the University Medical Centre,
Institute of Oncology, Ljubljana, Yugoslavia. Thanks go to M. Zwitter and
M. Soklic for providing the data. Please include this citation if you plan
to use this database.
1. Title: Breast cancer data (Michalski has used this)
2. Sources:
-- Matjaz Zwitter & Milan Soklic (physicians)
Institute of Oncology
University Medical Center
Ljubljana, Yugoslavia
-- Donors: Ming Tan and Jeff Schlimmer (Jeffrey.Schlimmer@a.gp.cs.cmu.edu)
-- Date: 11 July 1988
3. Past Usage: (Several: here are some)
-- Michalski,R.S., Mozetic,I., Hong,J., & Lavrac,N. (1986). The
Multi-Purpose Incremental Learning System AQ15 and its Testing
Application to Three Medical Domains. In Proceedings of the
Fifth National Conference on Artificial Intelligence, 1041-1045,
Philadelphia, PA: Morgan Kaufmann.
-- accuracy range: 66%-72%
-- Clark,P. & Niblett,T. (1987). Induction in Noisy Domains. In
Progress in Machine Learning (from the Proceedings of the 2nd
European Working Session on Learning), 11-30, Bled,
Yugoslavia: Sigma Press.
-- 8 test results given: 65%-72% accuracy range
-- Tan, M., & Eshelman, L. (1988). Using weighted networks to
represent classification knowledge in noisy domains. Proceedings
of the Fifth International Conference on Machine Learning, 121-134,
Ann Arbor, MI.
-- 4 systems tested: accuracy range was 68%-73.5%
-- Cestnik,G., Konenenko,I, & Bratko,I. (1987). Assistant-86: A
Knowledge-Elicitation Tool for Sophisticated Users. In I.Bratko
& N.Lavrac (Eds.) Progress in Machine Learning, 31-45, Sigma Press.
-- Assistant-86: 78% accuracy
4. Relevant Information:
This is one of three domains provided by the Oncology Institute
that has repeatedly appeared in the machine learning literature.
(See also lymphography and primary-tumor.)
This data set includes 201 instances of one class and 85 instances of
another class. The instances are described by 9 attributes, some of
which are linear and some are nominal.
5. Number of Instances: 286
6. Number of Attributes: 9 + the class attribute
7. Attribute Information:
1. Class: no-recurrence-events, recurrence-events
2. age: 10-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80-89, 90-99.
3. menopause: lt40, ge40, premeno.
4. tumor-size: 0-4, 5-9, 10-14, 15-19, 20-24, 25-29, 30-34, 35-39, 40-44,
45-49, 50-54, 55-59.
5. inv-nodes: 0-2, 3-5, 6-8, 9-11, 12-14, 15-17, 18-20, 21-23, 24-26,
27-29, 30-32, 33-35, 36-39.
6. node-caps: yes, no.
7. deg-malig: 1, 2, 3.
8. breast: left, right.
9. breast-quad: left-up, left-low, right-up, right-low, central.
10. irradiat: yes, no.
8. Missing Attribute Values: (denoted by "?")
Attribute #: Number of instances with missing values:
6. 8
9. 1.
9. Class Distribution:
1. no-recurrence-events: 201 instances
2. recurrence-events: 85 instances