{
    "data_id": "40907",
    "name": "Mammography",
    "exact_name": "Mammography",
    "version": 2,
    "version_label": null,
    "description": "This dataset is not the original dataset. The target variable "Target" is relabeled into "Normal" and "Anomaly".",
    "format": "ARFF",
    "uploader": "Minh-Anh Le",
    "uploader_id": 3768,
    "visibility": "public",
    "creator": "\"Guang-Tong Zhou\"",
    "contributor": null,
    "date": "2017-09-22 19:47:23",
    "update_comment": null,
    "last_update": "2017-09-22 19:47:23",
    "licence": "Public",
    "status": "in_preparation",
    "error_message": null,
    "url": "https:\/\/www.openml.org\/data\/download\/16787470\/php4tRGgl",
    "default_target_attribute": "Target",
    "row_id_attribute": null,
    "ignore_attribute": null,
    "runs": 0,
    "suggest": {
        "input": [
            "Mammography",
            "This dataset is not the original dataset. The target variable "Target" is relabeled into "Normal" and "Anomaly". "
        ],
        "weight": 5
    },
    "qualities": {
        "NumberOfInstances": 11183,
        "NumberOfFeatures": 7,
        "NumberOfClasses": 2,
        "NumberOfMissingValues": 0,
        "NumberOfInstancesWithMissingValues": 0,
        "NumberOfNumericFeatures": 6,
        "NumberOfSymbolicFeatures": 1,
        "ClassEntropy": 0.1593164203699977,
        "MeanNoiseToSignalRatio": null,
        "Quartile2AttributeEntropy": null,
        "Dimensionality": 0.0006259501028346597,
        "MeanNominalAttDistinctValues": 2,
        "Quartile2KurtosisOfNumericAtts": 40.042678947528984,
        "EquivalentNumberOfAtts": null,
        "MeanSkewnessOfNumericAtts": 4.443275604882733,
        "Quartile2MeansOfNumericAtts": 3.334068765089867,
        "MajorityClassPercentage": 97.67504247518555,
        "MeanStdDevOfNumericAtts": 44.17599890857822,
        "Quartile2MutualInformation": null,
        "MajorityClassSize": 10923,
        "MinAttributeEntropy": null,
        "Quartile2SkewnessOfNumericAtts": 4.665980834907411,
        "MaxAttributeEntropy": null,
        "MinKurtosisOfNumericAtts": -1.80546772499286,
        "PercentageOfBinaryFeatures": 14.285714285714285,
        "Quartile2StdDevOfNumericAtts": 4.136881648078334,
        "MaxKurtosisOfNumericAtts": 163.34649292814902,
        "MinMeansOfNumericAtts": 0.013123580434588219,
        "PercentageOfInstancesWithMissingValues": 0,
        "Quartile3AttributeEntropy": null,
        "MaxMeansOfNumericAtts": 106.29240811946707,
        "MinMutualInformation": null,
        "PercentageOfMissingValues": 0,
        "Quartile3KurtosisOfNumericAtts": 139.99837347150196,
        "MaxMutualInformation": null,
        "MinNominalAttDistinctValues": 2,
        "PercentageOfNumericFeatures": 85.71428571428571,
        "Quartile3MeansOfNumericAtts": 35.180437427345076,
        "MaxNominalAttDistinctValues": 2,
        "MinSkewnessOfNumericAtts": 0.19721483097678597,
        "PercentageOfSymbolicFeatures": 14.285714285714285,
        "Quartile3MutualInformation": null,
        "MaxSkewnessOfNumericAtts": 8.893965853111322,
        "MinStdDevOfNumericAtts": 0.02218201887457757,
        "Quartile1AttributeEntropy": null,
        "Quartile3SkewnessOfNumericAtts": 7.628636050370166,
        "MaxStdDevOfNumericAtts": 226.06010794553842,
        "MinorityClassPercentage": 2.3249575248144505,
        "Quartile1KurtosisOfNumericAtts": 1.5570583318309692,
        "Quartile3StdDevOfNumericAtts": 79.2938469336491,
        "MeanAttributeEntropy": null,
        "MinorityClassSize": 260,
        "Quartile1MeansOfNumericAtts": 0.23605667083966725,
        "StdvNominalAttDistinctValues": 0,
        "MeanKurtosisOfNumericAtts": 62.753325072489886,
        "NumberOfBinaryFeatures": 1,
        "Quartile1MutualInformation": null,
        "MeanMeansOfNumericAtts": 20.793414021282306,
        "Quartile1SkewnessOfNumericAtts": 0.8215425771969611,
        "AutoCorrelation": 0.9982114111965659,
        "MeanMutualInformation": null,
        "Quartile1StdDevOfNumericAtts": 0.251680700628876
    },
    "tags": [],
    "features": [
        {
            "name": "Target",
            "index": "6",
            "type": "nominal",
            "distinct": "2",
            "missing": "0",
            "target": "1",
            "distr": [
                [
                    "Normal",
                    "Anomaly"
                ],
                [
                    [
                        "10923",
                        "0"
                    ],
                    [
                        "0",
                        "260"
                    ]
                ]
            ]
        },
        {
            "name": "V1",
            "index": "0",
            "type": "numeric",
            "distinct": "5435",
            "missing": "0",
            "min": "0",
            "max": "191",
            "mean": "5",
            "stdev": "6"
        },
        {
            "name": "V2",
            "index": "1",
            "type": "numeric",
            "distinct": "883",
            "missing": "0",
            "min": "0",
            "max": "1256",
            "mean": "106",
            "stdev": "226"
        },
        {
            "name": "V3",
            "index": "2",
            "type": "numeric",
            "distinct": "160",
            "missing": "0",
            "min": "0",
            "max": "1",
            "mean": "0",
            "stdev": "0"
        },
        {
            "name": "V4",
            "index": "3",
            "type": "numeric",
            "distinct": "2800",
            "missing": "0",
            "min": "0",
            "max": "25",
            "mean": "2",
            "stdev": "2"
        },
        {
            "name": "V5",
            "index": "4",
            "type": "numeric",
            "distinct": "1739",
            "missing": "0",
            "min": "0",
            "max": "729",
            "mean": "11",
            "stdev": "30"
        },
        {
            "name": "V6",
            "index": "5",
            "type": "numeric",
            "distinct": "550",
            "missing": "0",
            "min": "0",
            "max": "1",
            "mean": "0",
            "stdev": "0"
        }
    ],
    "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
}