Data
abalone

abalone

active ARFF Publicly available Visibility: public Uploaded 01-06-2015 by Rafael G. Mantovani
0 likes downloaded by 3 people , 3 total downloads 0 issues 0 downvotes
Issue #Downvotes for this reason By


Loading wiki
Help us complete this description Edit
Author: Source: [original](http://www.openml.org/d/183) - UCI Please cite: * Abstract: A 3-class version of abalone dataset. * Sources: (a) Original owners of database: Marine Resources Division Marine Research Laboratories - Taroona Department of Primary Industry and Fisheries, Tasmania GPO Box 619F, Hobart, Tasmania 7001, Australia (contact: Warwick Nash +61 02 277277, wnash@dpi.tas.gov.au) (b) Donor of database: Sam Waugh (Sam.Waugh@cs.utas.edu.au) Department of Computer Science, University of Tasmania GPO Box 252C, Hobart, Tasmania 7001, Australia

9 features

Class (target)nominal3 unique values
0 missing
V1nominal3 unique values
0 missing
V2numeric134 unique values
0 missing
V3numeric111 unique values
0 missing
V4numeric51 unique values
0 missing
V5numeric2429 unique values
0 missing
V6numeric1515 unique values
0 missing
V7numeric880 unique values
0 missing
V8numeric926 unique values
0 missing

62 properties

4177
Number of instances (rows) of the dataset.
9
Number of attributes (columns) of the dataset.
3
Number of distinct values of the target attribute (if it is nominal).
0
Number of missing values in the dataset.
0
Number of instances with at least one value missing.
7
Number of numeric attributes.
2
Number of nominal attributes.
0
Percentage of binary attributes.
0.12
Second quartile (Median) of standard deviation of attributes of the numeric type.
1.58
Maximum entropy among attributes.
-0.05
Minimum kurtosis among attributes of the numeric type.
0
Percentage of instances having missing values.
1.58
Third quartile of entropy among attributes.
76.03
Maximum kurtosis among attributes of the numeric type.
0.14
Minimum of means among attributes of the numeric type.
0
Percentage of missing values.
0.6
Third quartile of kurtosis among attributes of the numeric type.
0.83
Maximum of means among attributes of the numeric type.
0.2
Minimal mutual information between the nominal attributes and the target attribute.
77.78
Percentage of numeric attributes.
0.52
Third quartile of means among attributes of the numeric type.
0.2
Maximum mutual information between the nominal attributes and the target attribute.
3
The minimal number of distinct values among attributes of the nominal type.
22.22
Percentage of nominal attributes.
0.2
Third quartile of mutual information between the nominal attributes and the target attribute.
3
The maximum number of distinct values among attributes of the nominal type.
-0.64
Minimum skewness among attributes of the numeric type.
1.58
First quartile of entropy among attributes.
0.72
Third quartile of skewness among attributes of the numeric type.
3.13
Maximum skewness among attributes of the numeric type.
0.04
Minimum standard deviation of attributes of the numeric type.
-0.02
First quartile of kurtosis among attributes of the numeric type.
0.22
Third quartile of standard deviation of attributes of the numeric type.
0.49
Maximum standard deviation of attributes of the numeric type.
31.67
Percentage of instances belonging to the least frequent class.
0.18
First quartile of means among attributes of the numeric type.
0
Standard deviation of the number of distinct values among attributes of the nominal type.
1.58
Average entropy of the attributes.
1323
Number of instances belonging to the least frequent class.
0.2
First quartile of mutual information between the nominal attributes and the target attribute.
11.03
Mean kurtosis among attributes of the numeric type.
0
Number of binary attributes.
-0.61
First quartile of skewness among attributes of the numeric type.
0.38
Mean of means among attributes of the numeric type.
0.1
First quartile of standard deviation of attributes of the numeric type.
0.58
Average class difference between consecutive instances.
0.2
Average mutual information between the nominal attributes and the target attribute.
1.58
Second quartile (Median) of entropy among attributes.
1.58
Entropy of the target attribute values.
7.04
An estimate of the amount of irrelevant information in the attributes regarding the class. Equals (MeanAttributeEntropy - MeanMutualInformation) divided by MeanMutualInformation.
0.08
Second quartile (Median) of kurtosis among attributes of the numeric type.
0
Number of attributes divided by the number of instances.
3
Average number of distinct values among the attributes of the nominal type.
0.36
Second quartile (Median) of means among attributes of the numeric type.
8.06
Number of attributes needed to optimally describe the class (under the assumption of independence among attributes). Equals ClassEntropy divided by MeanMutualInformation.
0.62
Mean skewness among attributes of the numeric type.
0.2
Second quartile (Median) of mutual information between the nominal attributes and the target attribute.
34.64
Percentage of instances belonging to the most frequent class.
0.17
Mean standard deviation of attributes of the numeric type.
0.59
Second quartile (Median) of skewness among attributes of the numeric type.
1447
Number of instances belonging to the most frequent class.
1.58
Minimal entropy among attributes.

5 tasks

73 runs - estimation_procedure: 10-fold Crossvalidation - evaluation_measure: predictive_accuracy - target_feature: Class
32 runs - estimation_procedure: 10-fold Crossvalidation - target_feature: Class
0 runs - estimation_procedure: 33% Holdout set - evaluation_measure: predictive_accuracy - target_feature: Class
Define a new task