LED Display Domain

Donated on 11/9/1988

From Classification and Regression Trees book; We provide here 2 C programs for generating sample databases

Dataset Characteristics

Multivariate, Data-Generator

Subject Area

Computer Science

Associated Tasks

Classification

Feature Type

Categorical

# Instances

-

# Features

7

Dataset Information

Additional Information

This simple domain contains 7 Boolean attributes and 10 concepts, the set of decimal digits. Recall that LED displays contain 7 light-emitting diodes -- hence the reason for 7 attributes. The problem would be easy if not for the introduction of noise. In this case, each attribute value has the 10% probability of having its value inverted. It's valuable to know the optimal Bayes rate for these databases. In this case, the misclassification rate is 26% (74% classification accuracy).

Has Missing Values?

No

Variables Table

Variable NameRoleTypeDescriptionUnitsMissing Values
Attribute1FeatureBinaryno
Attribute2FeatureBinaryno
Attribute3FeatureBinaryno
Attribute4FeatureBinaryno
Attribute5FeatureBinaryno
Attribute6FeatureBinaryno
Attribute7FeatureBinaryno

0 to 7 of 7

Additional Variable Information

-- All attribute values are either 0 or 1, according to whether the corresponding light is on or not for the decimal digit. -- Each attribute (excluding the class attribute, which is an integer ranging between 0 and 9 inclusive) has a 10% percent chance of being inverted.

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Creators

L. Breiman

J.H. Friedman

R.A. Olshen

C.J. Stone

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