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isolet

isolet

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Author: Ron Cole and Mark Fanty (cole@cse.ogi.edu, fanty@cse.ogi.edu) Donor: Tom Dietterich (tgd@cs.orst.edu) Source: [UCI](https://archive.ics.uci.edu/ml/datasets/ISOLET) Please cite: UCI ### Description ISOLET (Isolated Letter Speech Recognition) dataset was generated as follows: 150 subjects spoke the name of each letter of the alphabet twice. Hence, there are 52 training examples from each speaker. The speakers are grouped into sets of 30 speakers each, 4 groups can serve as training set, the last group as the test set. A total of 3 examples are missing, the authors dropped them due to difficulties in recording. This is a good domain for a noisy, perceptual task. It is also a very good domain for testing the scaling abilities of algorithms. For example, C4.5 on this domain is slower than backpropagation! ### Source * Creators: Ron Cole and Mark Fanty Department of Computer Science and Engineering, Oregon Graduate Institute, Beaverton, OR 97006. cole '@' cse.ogi.edu, fanty '@' cse.ogi.edu * Donor: Tom Dietterich Department of Computer Science Oregon State University, Corvallis, OR 97331 tgd '@' cs.orst.edu ### Attributes Information All attributes are continuous, real-valued attributes scaled into the range -1.0 to 1.0. The features are described in the paper by Cole and Fanty cited below. The features include spectral coefficients; contour features, sonorant features, pre-sonorant features, and post-sonorant features. The exact order of appearance of the features is not known. ### Relevant papers Fanty, M., Cole, R. (1991). Spoken letter recognition. In Lippman, R. P., Moody, J., and Touretzky, D. S. (Eds). Advances in Neural Information Processing Systems 3. San Mateo, CA: Morgan Kaufmann. Dietterich, T. G., Bakiri, G. (1991) Error-correcting output codes: A general method for improving multiclass inductive learning programs. Proceedings of the Ninth National Conference on Artificial Intelligence (AAAI-91), Anaheim, CA: AAAI Press. Dietterich, T. G., Bakiri, G. (1994) Solving Multiclass Learning Problems via Error-Correcting Output Codes.

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f586numeric3572 unique values
0 missing
f587numeric3542 unique values
0 missing
f588numeric3429 unique values
0 missing
f589numeric3431 unique values
0 missing
f590numeric3330 unique values
0 missing
f591numeric3355 unique values
0 missing
f592numeric3314 unique values
0 missing
f593numeric3307 unique values
0 missing
f594numeric3188 unique values
0 missing
f595numeric3174 unique values
0 missing
f596numeric3047 unique values
0 missing
f597numeric3110 unique values
0 missing
f598numeric2980 unique values
0 missing
f599numeric3061 unique values
0 missing
f600numeric3090 unique values
0 missing
f601numeric3107 unique values
0 missing
f602numeric3146 unique values
0 missing
f603numeric3182 unique values
0 missing
f604numeric3183 unique values
0 missing
f605numeric3223 unique values
0 missing
f606numeric3248 unique values
0 missing
f607numeric3245 unique values
0 missing
f608numeric3327 unique values
0 missing
f609numeric3343 unique values
0 missing
f610numeric3333 unique values
0 missing
f611numeric3332 unique values
0 missing
f612numeric3305 unique values
0 missing
f613numeric3338 unique values
0 missing
f614numeric3353 unique values
0 missing
f615numeric3342 unique values
0 missing
f616numeric3364 unique values
0 missing
f617numeric3426 unique values
0 missing

107 properties

7797
Number of instances (rows) of the dataset.
618
Number of attributes (columns) of the dataset.
26
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.
617
Number of numeric attributes.
1
Number of nominal attributes.
0.3
Average class difference between consecutive instances.
0.91
Area Under the ROC Curve achieved by the landmarker weka.classifiers.trees.DecisionStump -E "weka.attributeSelection.CfsSubsetEval -P 1 -E 1" -S "weka.attributeSelection.BestFirst -D 1 -N 5" -W
0.19
Error rate achieved by the landmarker weka.classifiers.trees.DecisionStump -E "weka.attributeSelection.CfsSubsetEval -P 1 -E 1" -S "weka.attributeSelection.BestFirst -D 1 -N 5" -W
0.8
Kappa coefficient achieved by the landmarker weka.classifiers.trees.DecisionStump -E "weka.attributeSelection.CfsSubsetEval -P 1 -E 1" -S "weka.attributeSelection.BestFirst -D 1 -N 5" -W
0.91
Area Under the ROC Curve achieved by the landmarker weka.classifiers.bayes.NaiveBayes -E "weka.attributeSelection.CfsSubsetEval -P 1 -E 1" -S "weka.attributeSelection.BestFirst -D 1 -N 5" -W
0.19
Error rate achieved by the landmarker weka.classifiers.bayes.NaiveBayes -E "weka.attributeSelection.CfsSubsetEval -P 1 -E 1" -S "weka.attributeSelection.BestFirst -D 1 -N 5" -W
0.8
Kappa coefficient achieved by the landmarker weka.classifiers.bayes.NaiveBayes -E "weka.attributeSelection.CfsSubsetEval -P 1 -E 1" -S "weka.attributeSelection.BestFirst -D 1 -N 5" -W
0.91
Area Under the ROC Curve achieved by the landmarker weka.classifiers.lazy.IBk -E "weka.attributeSelection.CfsSubsetEval -P 1 -E 1" -S "weka.attributeSelection.BestFirst -D 1 -N 5" -W
0.19
Error rate achieved by the landmarker weka.classifiers.lazy.IBk -E "weka.attributeSelection.CfsSubsetEval -P 1 -E 1" -S "weka.attributeSelection.BestFirst -D 1 -N 5" -W
0.8
Kappa coefficient achieved by the landmarker weka.classifiers.lazy.IBk -E "weka.attributeSelection.CfsSubsetEval -P 1 -E 1" -S "weka.attributeSelection.BestFirst -D 1 -N 5" -W
4.7
Entropy of the target attribute values.
0.73
Area Under the ROC Curve achieved by the landmarker weka.classifiers.trees.DecisionStump
0.92
Error rate achieved by the landmarker weka.classifiers.trees.DecisionStump
0.04
Kappa coefficient achieved by the landmarker weka.classifiers.trees.DecisionStump
0.08
Number of attributes divided by the number of instances.
Number of attributes needed to optimally describe the class (under the assumption of independence among attributes). Equals ClassEntropy divided by MeanMutualInformation.
0.92
Area Under the ROC Curve achieved by the landmarker weka.classifiers.trees.J48 -C .00001
0.18
Error rate achieved by the landmarker weka.classifiers.trees.J48 -C .00001
0.81
Kappa coefficient achieved by the landmarker weka.classifiers.trees.J48 -C .00001
0.92
Area Under the ROC Curve achieved by the landmarker weka.classifiers.trees.J48 -C .0001
0.18
Error rate achieved by the landmarker weka.classifiers.trees.J48 -C .0001
0.81
Kappa coefficient achieved by the landmarker weka.classifiers.trees.J48 -C .0001
0.92
Area Under the ROC Curve achieved by the landmarker weka.classifiers.trees.J48 -C .001
0.18
Error rate achieved by the landmarker weka.classifiers.trees.J48 -C .001
0.81
Kappa coefficient achieved by the landmarker weka.classifiers.trees.J48 -C .001
3.85
Percentage of instances belonging to the most frequent class.
300
Number of instances belonging to the most frequent class.
Maximum entropy among attributes.
136.54
Maximum kurtosis among attributes of the numeric type.
0.81
Maximum of means among attributes of the numeric type.
Maximum mutual information between the nominal attributes and the target attribute.
26
The maximum number of distinct values among attributes of the nominal type.
10.77
Maximum skewness among attributes of the numeric type.
0.94
Maximum standard deviation of attributes of the numeric type.
Average entropy of the attributes.
3.61
Mean kurtosis among attributes of the numeric type.
0.06
Mean of means among attributes of the numeric type.
Average mutual information between the nominal attributes and the target attribute.
An estimate of the amount of irrelevant information in the attributes regarding the class. Equals (MeanAttributeEntropy - MeanMutualInformation) divided by MeanMutualInformation.
26
Average number of distinct values among the attributes of the nominal type.
0.44
Mean skewness among attributes of the numeric type.
0.41
Mean standard deviation of attributes of the numeric type.
Minimal entropy among attributes.
-1.47
Minimum kurtosis among attributes of the numeric type.
-0.99
Minimum of means among attributes of the numeric type.
Minimal mutual information between the nominal attributes and the target attribute.
26
The minimal number of distinct values among attributes of the nominal type.
-2.37
Minimum skewness among attributes of the numeric type.
0.05
Minimum standard deviation of attributes of the numeric type.
3.82
Percentage of instances belonging to the least frequent class.
298
Number of instances belonging to the least frequent class.
0.98
Area Under the ROC Curve achieved by the landmarker weka.classifiers.bayes.NaiveBayes
0.17
Error rate achieved by the landmarker weka.classifiers.bayes.NaiveBayes
0.82
Kappa coefficient achieved by the landmarker weka.classifiers.bayes.NaiveBayes
0
Number of binary attributes.
0
Percentage of binary attributes.
0
Percentage of instances having missing values.
0
Percentage of missing values.
99.84
Percentage of numeric attributes.
0.16
Percentage of nominal attributes.
First quartile of entropy among attributes.
-0.74
First quartile of kurtosis among attributes of the numeric type.
-0.14
First quartile of means among attributes of the numeric type.
First quartile of mutual information between the nominal attributes and the target attribute.
-0.58
First quartile of skewness among attributes of the numeric type.
0.34
First quartile of standard deviation of attributes of the numeric type.
Second quartile (Median) of entropy among attributes.
-0.33
Second quartile (Median) of kurtosis among attributes of the numeric type.
0.2
Second quartile (Median) of means among attributes of the numeric type.
Second quartile (Median) of mutual information between the nominal attributes and the target attribute.
-0.09
Second quartile (Median) of skewness among attributes of the numeric type.
0.41
Second quartile (Median) of standard deviation of attributes of the numeric type.
Third quartile of entropy among attributes.
0.37
Third quartile of kurtosis among attributes of the numeric type.
0.42
Third quartile of means among attributes of the numeric type.
Third quartile of mutual information between the nominal attributes and the target attribute.
0.51
Third quartile of skewness among attributes of the numeric type.
0.49
Third quartile of standard deviation of attributes of the numeric type.
0.95
Area Under the ROC Curve achieved by the landmarker weka.classifiers.trees.REPTree -L 1
0.23
Error rate achieved by the landmarker weka.classifiers.trees.REPTree -L 1
0.76
Kappa coefficient achieved by the landmarker weka.classifiers.trees.REPTree -L 1
0.95
Area Under the ROC Curve achieved by the landmarker weka.classifiers.trees.REPTree -L 2
0.23
Error rate achieved by the landmarker weka.classifiers.trees.REPTree -L 2
0.76
Kappa coefficient achieved by the landmarker weka.classifiers.trees.REPTree -L 2
0.95
Area Under the ROC Curve achieved by the landmarker weka.classifiers.trees.REPTree -L 3
0.23
Error rate achieved by the landmarker weka.classifiers.trees.REPTree -L 3
0.76
Kappa coefficient achieved by the landmarker weka.classifiers.trees.REPTree -L 3
0.8
Area Under the ROC Curve achieved by the landmarker weka.classifiers.trees.RandomTree -depth 1
0.39
Error rate achieved by the landmarker weka.classifiers.trees.RandomTree -depth 1
0.6
Kappa coefficient achieved by the landmarker weka.classifiers.trees.RandomTree -depth 1
0.8
Area Under the ROC Curve achieved by the landmarker weka.classifiers.trees.RandomTree -depth 2
0.39
Error rate achieved by the landmarker weka.classifiers.trees.RandomTree -depth 2
0.6
Kappa coefficient achieved by the landmarker weka.classifiers.trees.RandomTree -depth 2
0.8
Area Under the ROC Curve achieved by the landmarker weka.classifiers.trees.RandomTree -depth 3
0.39
Error rate achieved by the landmarker weka.classifiers.trees.RandomTree -depth 3
0.6
Kappa coefficient achieved by the landmarker weka.classifiers.trees.RandomTree -depth 3
0
Standard deviation of the number of distinct values among attributes of the nominal type.
0.92
Area Under the ROC Curve achieved by the landmarker weka.classifiers.lazy.IBk
0.14
Error rate achieved by the landmarker weka.classifiers.lazy.IBk
0.85
Kappa coefficient achieved by the landmarker weka.classifiers.lazy.IBk

134 tasks

16636 runs - estimation_procedure: 10-fold Crossvalidation - target_feature: class
105 runs - estimation_procedure: 10 times 10-fold Crossvalidation - evaluation_measure: predictive_accuracy - target_feature: class
31 runs - estimation_procedure: 10-fold Crossvalidation - evaluation_measure: precision - target_feature: class
1 runs - estimation_procedure: 5 times 2-fold Crossvalidation - target_feature: class
0 runs - estimation_procedure: 33% Holdout set - target_feature: class
0 runs - estimation_procedure: 33% Holdout set - evaluation_measure: predictive_accuracy - target_feature: class
0 runs - estimation_procedure: 4-fold Crossvalidation - target_feature: class
0 runs - estimation_procedure: 10 times 10-fold Crossvalidation - evaluation_measure: predictive_accuracy - target_feature: class
39 runs - estimation_procedure: 10-fold Learning Curve - target_feature: class
0 runs - estimation_procedure: 10-fold Learning Curve - target_feature: class
0 runs - estimation_procedure: 10-fold Learning Curve - target_feature: class
0 runs - estimation_procedure: 10-fold Learning Curve - target_feature: class
0 runs - estimation_procedure: 10-fold Learning Curve - target_feature: class
0 runs - estimation_procedure: 10-fold Learning Curve - target_feature: class
0 runs - estimation_procedure: 10-fold Learning Curve - target_feature: class
0 runs - estimation_procedure: 10-fold Learning Curve - target_feature: class
0 runs - estimation_procedure: 10-fold Learning Curve - target_feature: class
0 runs - estimation_procedure: Interleaved Test then Train - target_feature: class
0 runs - target_feature: class
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
1322 runs - target_feature: class
1317 runs - target_feature: class
1316 runs - target_feature: class
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1299 runs - target_feature: class
0 runs - target_feature: class
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0 runs - target_feature: class
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