{
    "data_id": "310",
    "name": "mammography",
    "exact_name": "mammography",
    "version": 1,
    "version_label": "",
    "description": "**Author**:   \n  \n**Source**: Unknown -   \n**Please cite**:   \n\nMammography dataset\n\nPast Usage:\n1. Woods, K., Doss, C., Bowyer, K., Solka, J., Priebe, C.,",
    "format": "ARFF",
    "uploader": "Tobias Kuehn",
    "uploader_id": 94,
    "visibility": "public",
    "creator": "\"\"",
    "contributor": "\"\"",
    "date": "2014-08-25 11:38:52",
    "update_comment": null,
    "last_update": "2014-08-25 11:38:52",
    "licence": "Public",
    "status": "active",
    "error_message": null,
    "url": "https:\/\/www.openml.org\/data\/download\/52214\/phpn1jVwe",
    "default_target_attribute": "class",
    "row_id_attribute": "",
    "ignore_attribute": null,
    "runs": 218,
    "suggest": {
        "input": [
            "mammography",
            "Mammography dataset Past Usage: 1. Woods, K., Doss, C., Bowyer, K., Solka, J., Priebe, C., "
        ],
        "weight": 5
    },
    "qualities": {
        "NumberOfInstances": 11183,
        "NumberOfFeatures": 7,
        "NumberOfClasses": 2,
        "NumberOfMissingValues": 0,
        "NumberOfInstancesWithMissingValues": 0,
        "NumberOfNumericFeatures": 6,
        "NumberOfSymbolicFeatures": 1,
        "Quartile2SkewnessOfNumericAtts": 4.665980832477901,
        "REPTreeDepth3Kappa": 0.5968770976108984,
        "DecisionStumpKappa": 0.2965374215735158,
        "MaxMeansOfNumericAtts": 1.4594832180364485e-9,
        "MinMutualInformation": null,
        "PercentageOfBinaryFeatures": 14.285714285714285,
        "Quartile2StdDevOfNumericAtts": 1.0000000011002568,
        "RandomTreeDepth1AUC": 0.6984038619990282,
        "Dimensionality": 0.0006259501028346597,
        "MaxMutualInformation": null,
        "MinNominalAttDistinctValues": 2,
        "PercentageOfInstancesWithMissingValues": 0,
        "Quartile3AttributeEntropy": null,
        "RandomTreeDepth1ErrRate": 0.020745774836805866,
        "EquivalentNumberOfAtts": null,
        "MaxNominalAttDistinctValues": 2,
        "MinSkewnessOfNumericAtts": 0.19721483177848173,
        "PercentageOfMissingValues": 0,
        "Quartile3KurtosisOfNumericAtts": 139.99837631079384,
        "AutoCorrelation": 0.9983008406367376,
        "RandomTreeDepth1Kappa": 0.5308972968594458,
        "J48.00001.AUC": 0.7766751878534356,
        "MaxSkewnessOfNumericAtts": 8.89396595370529,
        "MinStdDevOfNumericAtts": 0.9999999983376999,
        "PercentageOfNumericFeatures": 85.71428571428571,
        "Quartile3MeansOfNumericAtts": 1.3380666079959251e-9,
        "CfsSubsetEval_DecisionStumpAUC": 0.8429032950936274,
        "RandomTreeDepth2AUC": 0.6984038619990282,
        "J48.00001.ErrRate": 0.014843959581507646,
        "MaxStdDevOfNumericAtts": 1.0000000027226326,
        "MinorityClassPercentage": 2.3249575248144505,
        "PercentageOfSymbolicFeatures": 14.285714285714285,
        "Quartile3MutualInformation": null,
        "CfsSubsetEval_DecisionStumpErrRate": 0.01538048824108021,
        "RandomTreeDepth2ErrRate": 0.020745774836805866,
        "J48.00001.Kappa": 0.6119828571476351,
        "MeanAttributeEntropy": null,
        "MinorityClassSize": 260,
        "Quartile1AttributeEntropy": null,
        "Quartile3SkewnessOfNumericAtts": 7.628636131672011,
        "CfsSubsetEval_DecisionStumpKappa": 0.5382712718330683,
        "RandomTreeDepth2Kappa": 0.5308972968594458,
        "J48.0001.AUC": 0.7766751878534356,
        "MeanKurtosisOfNumericAtts": 62.75332612137269,
        "NaiveBayesAUC": 0.9124809063643986,
        "Quartile1KurtosisOfNumericAtts": 1.5570582847230492,
        "Quartile3StdDevOfNumericAtts": 1.0000000022354372,
        "CfsSubsetEval_NaiveBayesAUC": 0.8429032950936274,
        "RandomTreeDepth3AUC": 0.6984038619990282,
        "J48.0001.ErrRate": 0.014843959581507646,
        "MeanMeansOfNumericAtts": -1.9973715141212884e-11,
        "NaiveBayesErrRate": 0.04444245730126084,
        "Quartile1MeansOfNumericAtts": -1.4494357821733248e-9,
        "REPTreeDepth1AUC": 0.8470147677096319,
        "CfsSubsetEval_NaiveBayesErrRate": 0.01538048824108021,
        "RandomTreeDepth3ErrRate": 0.020745774836805866,
        "J48.0001.Kappa": 0.6119828571476351,
        "MeanMutualInformation": null,
        "NaiveBayesKappa": 0.41148331337180327,
        "Quartile1MutualInformation": null,
        "REPTreeDepth1ErrRate": 0.0155593311276044,
        "CfsSubsetEval_NaiveBayesKappa": 0.5382712718330683,
        "RandomTreeDepth3Kappa": 0.5308972968594458,
        "J48.001.AUC": 0.7766751878534356,
        "MeanNoiseToSignalRatio": null,
        "NumberOfBinaryFeatures": 1,
        "Quartile1SkewnessOfNumericAtts": 0.8215425724188689,
        "REPTreeDepth1Kappa": 0.5968770976108984,
        "CfsSubsetEval_kNN1NAUC": 0.8429032950936274,
        "StdvNominalAttDistinctValues": 0,
        "J48.001.ErrRate": 0.014843959581507646,
        "MeanNominalAttDistinctValues": 2,
        "Quartile1StdDevOfNumericAtts": 0.9999999988874,
        "REPTreeDepth2AUC": 0.8470147677096319,
        "CfsSubsetEval_kNN1NErrRate": 0.01538048824108021,
        "kNN1NAUC": 0.7300544370030775,
        "J48.001.Kappa": 0.6119828571476351,
        "MeanSkewnessOfNumericAtts": 4.443275632344359,
        "Quartile2AttributeEntropy": null,
        "REPTreeDepth2ErrRate": 0.0155593311276044,
        "CfsSubsetEval_kNN1NKappa": 0.5382712718330683,
        "kNN1NErrRate": 0.01725833854958419,
        "MajorityClassPercentage": 97.67504247518555,
        "MeanStdDevOfNumericAtts": 1.0000000007340863,
        "Quartile2KurtosisOfNumericAtts": 40.04267907348581,
        "REPTreeDepth2Kappa": 0.5968770976108984,
        "ClassEntropy": 0.1593164203699977,
        "kNN1NKappa": 0.5981332529470386,
        "MajorityClassSize": 10923,
        "MinAttributeEntropy": null,
        "Quartile2MeansOfNumericAtts": 3.3973240811588833e-10,
        "REPTreeDepth3AUC": 0.8470147677096319,
        "DecisionStumpAUC": 0.7635713983901296,
        "MaxAttributeEntropy": null,
        "MinKurtosisOfNumericAtts": -1.8054677235266348,
        "Quartile2MutualInformation": null,
        "REPTreeDepth3ErrRate": 0.0155593311276044,
        "DecisionStumpErrRate": 0.02271304658857194,
        "MaxKurtosisOfNumericAtts": 163.34649640438963,
        "MinMeansOfNumericAtts": -2.43570553030023e-9
    },
    "tags": [
        {
            "uploader": "38960",
            "tag": "Health"
        },
        {
            "uploader": "38960",
            "tag": "Medicine"
        },
        {
            "uploader": "1",
            "tag": "mythbusting_1"
        },
        {
            "uploader": "2",
            "tag": "study_1"
        },
        {
            "uploader": "939",
            "tag": "study_15"
        },
        {
            "uploader": "939",
            "tag": "study_20"
        },
        {
            "uploader": "64",
            "tag": "study_50"
        },
        {
            "uploader": "64",
            "tag": "study_52"
        },
        {
            "uploader": "64",
            "tag": "study_7"
        }
    ],
    "features": [
        {
            "name": "class",
            "index": "6",
            "type": "nominal",
            "distinct": "2",
            "missing": "0",
            "target": "1",
            "distr": [
                [
                    "-1",
                    "1"
                ],
                [
                    [
                        "10923",
                        "0"
                    ],
                    [
                        "0",
                        "260"
                    ]
                ]
            ]
        },
        {
            "name": "attr1",
            "index": "0",
            "type": "numeric",
            "distinct": "5435",
            "missing": "0",
            "min": "-1",
            "max": "32",
            "mean": "0",
            "stdev": "1"
        },
        {
            "name": "attr2",
            "index": "1",
            "type": "numeric",
            "distinct": "883",
            "missing": "0",
            "min": "0",
            "max": "5",
            "mean": "0",
            "stdev": "1"
        },
        {
            "name": "attr3",
            "index": "2",
            "type": "numeric",
            "distinct": "160",
            "missing": "0",
            "min": "-1",
            "max": "29",
            "mean": "0",
            "stdev": "1"
        },
        {
            "name": "attr4",
            "index": "3",
            "type": "numeric",
            "distinct": "2800",
            "missing": "0",
            "min": "-1",
            "max": "10",
            "mean": "0",
            "stdev": "1"
        },
        {
            "name": "attr5",
            "index": "4",
            "type": "numeric",
            "distinct": "1739",
            "missing": "0",
            "min": "0",
            "max": "24",
            "mean": "0",
            "stdev": "1"
        },
        {
            "name": "attr6",
            "index": "5",
            "type": "numeric",
            "distinct": "550",
            "missing": "0",
            "min": "-1",
            "max": "2",
            "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
}