Breast Cancer Wisconsin (Original)

Donated on 7/14/1992

Original Wisconsin Breast Cancer Database

Dataset Characteristics

Multivariate

Subject Area

Health and Medicine

Associated Tasks

Classification

Feature Type

Integer

# Instances

699

# Features

9

Dataset Information

Additional Information

Samples arrive periodically as Dr. Wolberg reports his clinical cases. The database therefore reflects this chronological grouping of the data. This grouping information appears immediately below, having been removed from the data itself: Group 1: 367 instances (January 1989) Group 2: 70 instances (October 1989) Group 3: 31 instances (February 1990) Group 4: 17 instances (April 1990) Group 5: 48 instances (August 1990) Group 6: 49 instances (Updated January 1991) Group 7: 31 instances (June 1991) Group 8: 86 instances (November 1991) ----------------------------------------- Total: 699 points (as of the donated datbase on 15 July 1992) Note that the results summarized above in Past Usage refer to a dataset of size 369, while Group 1 has only 367 instances. This is because it originally contained 369 instances; 2 were removed. The following statements summarizes changes to the original Group 1's set of data: ##### Group 1 : 367 points: 200B 167M (January 1989) ##### Revised Jan 10, 1991: Replaced zero bare nuclei in 1080185 & 1187805 ##### Revised Nov 22,1991: Removed 765878,4,5,9,7,10,10,10,3,8,1 no record ##### : Removed 484201,2,7,8,8,4,3,10,3,4,1 zero epithelial ##### : Changed 0 to 1 in field 6 of sample 1219406 ##### : Changed 0 to 1 in field 8 of following sample: ##### : 1182404,2,3,1,1,1,2,0,1,1,1

Has Missing Values?

Yes

Variables Table

Variable NameRoleTypeDescriptionUnitsMissing Values
Sample_code_numberIDCategoricalno
Clump_thicknessFeatureIntegerno
Uniformity_of_cell_sizeFeatureIntegerno
Uniformity_of_cell_shapeFeatureIntegerno
Marginal_adhesionFeatureIntegerno
Single_epithelial_cell_sizeFeatureIntegerno
Bare_nucleiFeatureIntegeryes
Bland_chromatinFeatureIntegerno
Normal_nucleoliFeatureIntegerno
MitosesFeatureIntegerno

0 to 10 of 11

Additional Variable Information

1. Sample code number: id number 2. Clump Thickness: 1 - 10 3. Uniformity of Cell Size: 1 - 10 4. Uniformity of Cell Shape: 1 - 10 5. Marginal Adhesion: 1 - 10 6. Single Epithelial Cell Size: 1 - 10 7. Bare Nuclei: 1 - 10 8. Bland Chromatin: 1 - 10 9. Normal Nucleoli: 1 - 10 10. Mitoses: 1 - 10 11. Class: (2 for benign, 4 for malignant)

Class Labels

2 = benign, 4 = malignant

Baseline Model Performance

Papers Citing this Dataset

On the Bias of Precision Estimation Under Separate Sampling

By Shuilian Xie, Ulisses Braga-Neto. 2019

Published in Cancer informatics.

Rbf Kernel Optimization Method with Particle Swarm Optimization on Svm Using the Analysis of Input Data's Movement

By Rarasmaya Indraswari, Agus Arifin. 2017

Published in Jurnal Ilmu Komputer dan Informasi.

Widened KRIMP: Better Performance through Diverse Parallelism

By Oliver Sampson, Michael Berthold. 2014

Published in IDA.

Automated Empirical Selection of Rule Induction Methods Based on Recursive Iteration of Resampling Methods and Multiple Testing

By Shusaku Tsumoto, Shoji Hirano. 2010

Published in 2010 IEEE International Conference on Data Mining Workshops.

0 to 5 of 6

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6 citations
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Keywords

healthcancer

Creators

WIlliam Wolberg

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