solr/contrib/ltr/src/test-files/modelExamples/multipleadditivetreesmodel_external_binary_features.json

{
  "class":"org.apache.solr.ltr.model.MultipleAdditiveTreesModel",
  "name":"external_model_binary_feature",
  "features":[
    { "name": "user_device_smartphone"},
    { "name": "user_device_tablet"}
  ],
  "params":{
    "trees": [
      {
        "weight" : "1f",
        "root": {
          "feature": "user_device_smartphone",
          "threshold": "0.5f",
          "left" : {
            "value" : "0"
          },
          "right" : {
            "value" : "50"
          }

        }},
      {
        "weight" : "1f",
        "root": {
          "feature": "user_device_tablet",
          "threshold": "0.5f",
          "left" : {
            "value" : "0"
          },
          "right" : {
            "value" : "65"
          }

        }}
    ]
  }
}