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helena

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  • Artificial Intelligence chalearn Data Science Statistics study_218
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SOURCE: [ChaLearn Automatic Machine Learning Challenge (AutoML)](https://competitions.codalab.org/competitions/2321), [ChaLearn](https://automl.chalearn.org/data) This is a "supervised learning" challenge in machine learning. We are making available 30 datasets, all pre-formatted in given feature representations (this means that each example consists of a fixed number of numerical coefficients). The challenge is to solve classification and regression problems, without any further human intervention. The difficulty is that there is a broad diversity of data types and distributions (including balanced or unbalanced classes, sparse or dense feature representations, with or without missing values or categorical variables, various metrics of evaluation, various proportions of number of features and number of examples). The problems are drawn from a wide variety of domains and include medical diagnosis from laboratory analyses, speech recognition, credit rating, prediction or drug toxicity or efficacy, classification of text, prediction of customer satisfaction, object recognition, protein structure prediction, action recognition in video data, etc. While there exist machine learning toolkits including methods that can solve all these problems, it is still considerable human effort to find, for a given combination of dataset, task, metric of evaluation, and available computational time, the combination of methods and hyper-parameter setting that is best suited. Your challenge is to create the "perfect black box" eliminating the human in the loop. This is a challenge with code submission: your code will be executed automatically on our servers to train and test your learning machines with unknown datasets. However, there is NO OBLIGATION TO SUBMIT CODE. Half of the prizes can be won by just submitting prediction results. There are six rounds (Prep, Novice, Intermediate, Advanced, Expert, and Master) in which datasets of progressive difficulty are introduced (5 per round). There is NO PREREQUISITE TO PARTICIPATE IN PREVIOUS ROUNDS to enter a new round. The rounds alternate AutoML phases in which submitted code is "blind tested" in limited time on our platform, using datasets you have never seen before, and Tweakathon phases giving you time to improve your methods by tweaking them on those datasets and running them on your own systems (without computational resource limitation). NOTE: This dataset corresponds to one of the datasets of the challenge.

28 features

class (target)nominal100 unique values
0 missing
V1numeric42419 unique values
0 missing
V2numeric846 unique values
0 missing
V3numeric866 unique values
0 missing
V4numeric62001 unique values
0 missing
V5numeric63025 unique values
0 missing
V6numeric61014 unique values
0 missing
V7numeric62359 unique values
0 missing
V8numeric61798 unique values
0 missing
V9numeric60808 unique values
0 missing
V10numeric58200 unique values
0 missing
V11numeric58985 unique values
0 missing
V12numeric60800 unique values
0 missing
V13numeric62209 unique values
0 missing
V14numeric62292 unique values
0 missing
V15numeric62394 unique values
0 missing
V16numeric64062 unique values
0 missing
V17numeric64104 unique values
0 missing
V18numeric63824 unique values
0 missing
V19numeric61370 unique values
0 missing
V20numeric64274 unique values
0 missing
V21numeric63866 unique values
0 missing
V22numeric60414 unique values
0 missing
V23numeric62948 unique values
0 missing
V24numeric63014 unique values
0 missing
V25numeric64164 unique values
0 missing
V26numeric64054 unique values
0 missing
V27numeric63929 unique values
0 missing

62 properties

65196
Number of instances (rows) of the dataset.
28
Number of attributes (columns) of the dataset.
100
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.
27
Number of numeric attributes.
1
Number of nominal attributes.
-0.77
Mean skewness among attributes of the numeric type.
0.52
Second quartile (Median) of means among attributes of the numeric type.
Number of attributes needed to optimally describe the class (under the assumption of independence among attributes). Equals ClassEntropy divided by MeanMutualInformation.
10.71
Mean standard deviation of attributes of the numeric type.
Second quartile (Median) of mutual information between the nominal attributes and the target attribute.
6.14
Percentage of instances belonging to the most frequent class.
Minimal entropy among attributes.
0.39
Second quartile (Median) of skewness among attributes of the numeric type.
4005
Number of instances belonging to the most frequent class.
Maximum entropy among attributes.
-1.6
Minimum kurtosis among attributes of the numeric type.
0
Percentage of binary attributes.
3.05
Second quartile (Median) of standard deviation of attributes of the numeric type.
266.33
Maximum kurtosis among attributes of the numeric type.
-0.78
Minimum of means among attributes of the numeric type.
0
Percentage of instances having missing values.
Third quartile of entropy among attributes.
125.5
Maximum of means among attributes of the numeric type.
Minimal mutual information between the nominal attributes and the target attribute.
0
Percentage of missing values.
8.78
Third quartile of kurtosis among attributes of the numeric type.
Maximum mutual information between the nominal attributes and the target attribute.
100
The minimal number of distinct values among attributes of the nominal type.
96.43
Percentage of numeric attributes.
33.66
Third quartile of means among attributes of the numeric type.
100
The maximum number of distinct values among attributes of the nominal type.
-11.5
Minimum skewness among attributes of the numeric type.
3.57
Percentage of nominal attributes.
Third quartile of mutual information between the nominal attributes and the target attribute.
2.51
Maximum skewness among attributes of the numeric type.
0.04
Minimum standard deviation of attributes of the numeric type.
First quartile of entropy among attributes.
1.01
Third quartile of skewness among attributes of the numeric type.
61.38
Maximum standard deviation of attributes of the numeric type.
0.17
Percentage of instances belonging to the least frequent class.
-0.43
First quartile of kurtosis among attributes of the numeric type.
15.24
Third quartile of standard deviation of attributes of the numeric type.
Average entropy of the attributes.
111
Number of instances belonging to the least frequent class.
0.35
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.
39.47
Mean kurtosis among attributes of the numeric type.
0
Number of binary attributes.
First quartile of mutual information between the nominal attributes and the target attribute.
20.82
Mean of means among attributes of the numeric type.
0
First quartile of skewness among attributes of the numeric type.
Average mutual information between the nominal attributes and the target attribute.
0.26
First quartile of standard deviation of attributes of the numeric type.
0.02
Average class difference between consecutive instances.
An estimate of the amount of irrelevant information in the attributes regarding the class. Equals (MeanAttributeEntropy - MeanMutualInformation) divided by MeanMutualInformation.
Second quartile (Median) of entropy among attributes.
5.98
Entropy of the target attribute values.
100
Average number of distinct values among the attributes of the nominal type.
0.16
Second quartile (Median) of kurtosis among attributes of the numeric type.
0
Number of attributes divided by the number of instances.

20 tasks

10 runs - estimation_procedure: 10-fold Crossvalidation - evaluation_measure: mean_class_complexity - target_feature: class
2 runs - estimation_procedure: 33% Holdout set - target_feature: class
0 runs - estimation_procedure: 20% Holdout (Ordered) - target_feature: class
0 runs - estimation_procedure: 10 times 10-fold Crossvalidation - target_feature: class
0 runs - estimation_procedure: 4-fold Crossvalidation - target_feature: class
0 runs - estimation_procedure: 10-fold Crossvalidation - evaluation_measure: predictive_accuracy - 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 - 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
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