{ "data_id": "1507", "name": "twonorm", "exact_name": "twonorm", "version": 1, "version_label": null, "description": "**Author**: Michael Revow \n**Source**: http:\/\/www.cs.toronto.edu\/~delve\/data\/twonorm\/desc.html \n**Please cite**: \n\n* Twonorm dataset\n\nThis is an implementation of Leo Breiman's twonorm example[1]. It is a 20 dimensional, 2 class classification example. Each class is drawn from a multivariate normal distribution with unit variance. Class 1 has mean (a,a,..a) while Class 2 has mean (-a,-a,..-a). Where a = 2\/sqrt(20). Breiman reports the theoretical expected misclassification rate as 2.3%. He used 300 training examples with CART and found an error of 22.1%.\n", "format": "ARFF", "uploader": "Rafael Gomes Mantovani", "uploader_id": 64, "visibility": "public", "creator": null, "contributor": null, "date": "2015-05-25 23:17:08", "update_comment": null, "last_update": "2015-11-09 20:16:49", "licence": "Public", "status": "active", "error_message": null, "url": "https:\/\/www.openml.org\/data\/download\/1592299\/phpxijhaP", "kaggle_url": null, "default_target_attribute": "Class", "row_id_attribute": null, "ignore_attribute": null, "runs": 118, "suggest": { "input": [ "twonorm", "* Twonorm dataset This is an implementation of Leo Breiman's twonorm example[1]. It is a 20 dimensional, 2 class classification example. Each class is drawn from a multivariate normal distribution with unit variance. Class 1 has mean (a,a,..a) while Class 2 has mean (-a,-a,..-a). Where a = 2\/sqrt(20). Breiman reports the theoretical expected misclassification rate as 2.3%. He used 300 training examples with CART and found an error of 22.1%. " ], "weight": 5 }, "qualities": { "NumberOfInstances": 7400, "NumberOfFeatures": 21, "NumberOfClasses": 2, "NumberOfMissingValues": 0, "NumberOfInstancesWithMissingValues": 0, "NumberOfNumericFeatures": 20, "NumberOfSymbolicFeatures": 1, "REPTreeDepth1Kappa": 0.6497267361598342, "CfsSubsetEval_kNN1NAUC": 0.8337458001250695, "StdvNominalAttDistinctValues": 0, "J48.001.ErrRate": 0.15878378378378377, "MeanNominalAttDistinctValues": 2, "Quartile1SkewnessOfNumericAtts": -0.006100432365875347, "REPTreeDepth2AUC": 0.871890164135243, "CfsSubsetEval_kNN1NErrRate": 0.15878378378378377, "kNN1NAUC": 0.9424330520012759, "J48.001.Kappa": 0.6824318757023388, "MeanSkewnessOfNumericAtts": 0.011570591325473938, "Quartile1StdDevOfNumericAtts": 1.0852804758994552, "REPTreeDepth2ErrRate": 0.17513513513513512, "CfsSubsetEval_kNN1NKappa": 0.6824318757023388, "kNN1NErrRate": 0.05756756756756757, "MajorityClassPercentage": 50.04054054054055, "MeanStdDevOfNumericAtts": 1.0925789909126522, "Quartile2AttributeEntropy": null, "REPTreeDepth2Kappa": 0.6497267361598342, "ClassEntropy": 0.9999995257758659, "kNN1NKappa": 0.8848649405562846, "MajorityClassSize": 3703, "MinAttributeEntropy": null, "Quartile2KurtosisOfNumericAtts": -0.07459906679305939, "REPTreeDepth3AUC": 0.871890164135243, "DecisionStumpAUC": 0.6809864228544782, "MaxAttributeEntropy": null, "MinKurtosisOfNumericAtts": -0.14417075659781808, "Quartile2MeansOfNumericAtts": 0.00802439864864863, "REPTreeDepth3ErrRate": 0.17513513513513512, "DecisionStumpErrRate": 0.3381081081081081, "MaxKurtosisOfNumericAtts": 0.049161690589743845, "MinMeansOfNumericAtts": -0.022110783783783818, "Quartile2MutualInformation": null, "Quartile2SkewnessOfNumericAtts": 0.003824724611524593, "REPTreeDepth3Kappa": 0.6497267361598342, "DecisionStumpKappa": 0.32375281176135673, "MaxMeansOfNumericAtts": 0.01373652702702702, "MinMutualInformation": null, "Quartile2StdDevOfNumericAtts": 1.0932317976994983, "RandomTreeDepth1AUC": 0.8416241471597753, "Dimensionality": 0.002837837837837838, "MaxMutualInformation": null, "MinNominalAttDistinctValues": 2, "PercentageOfBinaryFeatures": 4.761904761904762, "Quartile3AttributeEntropy": null, "RandomTreeDepth1ErrRate": 0.15837837837837837, "EquivalentNumberOfAtts": null, "MaxNominalAttDistinctValues": 2, "MinSkewnessOfNumericAtts": -0.03290459217782331, "PercentageOfInstancesWithMissingValues": 0, "Quartile3KurtosisOfNumericAtts": -0.034297063806471795, "AutoCorrelation": 0.488984997972699, "RandomTreeDepth1Kappa": 0.6832447009191995, "J48.00001.AUC": 0.8337458001250695, "MaxSkewnessOfNumericAtts": 0.05169621178744497, "MinStdDevOfNumericAtts": 1.0791394450744052, "PercentageOfMissingValues": 0, "Quartile3MeansOfNumericAtts": 0.01068550675675678, "CfsSubsetEval_DecisionStumpAUC": 0.8337458001250695, "RandomTreeDepth2AUC": 0.8416241471597753, "J48.00001.ErrRate": 0.15878378378378377, "MaxStdDevOfNumericAtts": 1.108513757787852, "MinorityClassPercentage": 49.95945945945946, "PercentageOfNumericFeatures": 95.23809523809523, "Quartile3MutualInformation": null, "CfsSubsetEval_DecisionStumpErrRate": 0.15878378378378377, "RandomTreeDepth2ErrRate": 0.15837837837837837, "J48.00001.Kappa": 0.6824318757023388, "MeanAttributeEntropy": null, "MinorityClassSize": 3697, "PercentageOfSymbolicFeatures": 4.761904761904762, "Quartile3SkewnessOfNumericAtts": 0.039239219167993805, "CfsSubsetEval_DecisionStumpKappa": 0.6824318757023388, "RandomTreeDepth2Kappa": 0.6832447009191995, "J48.0001.AUC": 0.8337458001250695, "MeanKurtosisOfNumericAtts": -0.06388078544223903, "NaiveBayesAUC": 0.9978871425116348, "Quartile1AttributeEntropy": null, "Quartile3StdDevOfNumericAtts": 1.0995315600930193, "CfsSubsetEval_NaiveBayesAUC": 0.8337458001250695, "RandomTreeDepth3AUC": 0.8416241471597753, "J48.0001.ErrRate": 0.15878378378378377, "MeanMeansOfNumericAtts": 0.0023114067567567473, "NaiveBayesErrRate": 0.022027027027027028, "Quartile1KurtosisOfNumericAtts": -0.08719638024336618, "REPTreeDepth1AUC": 0.871890164135243, "CfsSubsetEval_NaiveBayesErrRate": 0.15878378378378377, "RandomTreeDepth3ErrRate": 0.15837837837837837, "J48.0001.Kappa": 0.6824318757023388, "MeanMutualInformation": null, "NaiveBayesKappa": 0.9559458107906539, "Quartile1MeansOfNumericAtts": -0.00580602702702702, "REPTreeDepth1ErrRate": 0.17513513513513512, "CfsSubsetEval_NaiveBayesKappa": 0.6824318757023388, "RandomTreeDepth3Kappa": 0.6832447009191995, "J48.001.AUC": 0.8337458001250695, "MeanNoiseToSignalRatio": null, "NumberOfBinaryFeatures": 1, "Quartile1MutualInformation": null }, "tags": [ { "uploader": "2", "tag": "artificial" }, { "uploader": "38960", "tag": "Data Science" }, { "uploader": "38960", "tag": "Machine Learning" }, { "uploader": "38960", "tag": "Statistics" }, { "uploader": "64", "tag": "study_52" }, { "uploader": "64", "tag": "study_7" } ], "features": [ { "name": "Class", "index": "20", "type": "nominal", "distinct": "2", "missing": "0", "target": "1", "distr": [ [ "1", "2" ], [ [ "3703", "0" ], [ "0", "3697" ] ] ] }, { "name": "V1", "index": "0", "type": "numeric", "distinct": "6748", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V2", "index": "1", "type": "numeric", "distinct": "6734", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V3", "index": "2", "type": "numeric", "distinct": "6768", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V4", "index": "3", "type": "numeric", "distinct": "6735", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V5", "index": "4", "type": "numeric", "distinct": "6787", "missing": "0", "min": "-4", "max": "6", "mean": "0", "stdev": "1" }, { "name": "V6", "index": "5", "type": "numeric", "distinct": "6743", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V7", "index": "6", "type": "numeric", "distinct": "6771", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V8", "index": "7", "type": "numeric", "distinct": "6776", "missing": "0", "min": "-5", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V9", "index": "8", "type": "numeric", "distinct": "6742", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V10", "index": "9", "type": "numeric", "distinct": "6790", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V11", "index": "10", "type": "numeric", "distinct": "6764", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V12", "index": "11", "type": "numeric", "distinct": "6789", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V13", "index": "12", "type": "numeric", "distinct": "6731", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V14", "index": "13", "type": "numeric", "distinct": "6760", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V15", "index": "14", "type": "numeric", "distinct": "6732", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V16", "index": "15", "type": "numeric", "distinct": "6740", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V17", "index": "16", "type": "numeric", "distinct": "6775", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V18", "index": "17", "type": "numeric", "distinct": "6732", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V19", "index": "18", "type": "numeric", "distinct": "6706", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" }, { "name": "V20", "index": "19", "type": "numeric", "distinct": "6762", "missing": "0", "min": "-4", "max": "4", "mean": "0", "stdev": "1" } ], "nr_of_issues": 0, "nr_of_downvotes": 0, "nr_of_likes": 0, "nr_of_downloads": 0, "total_downloads": 0, "reach": 0, "reuse": 0, "impact_of_reuse": 0, "reach_of_reuse": 0, "impact": 0 }