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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.ml.tuning
import org.apache.spark.annotation.DeveloperApi
import org.apache.spark.ml.Estimator
import org.apache.spark.ml.evaluation.Evaluator
import org.apache.spark.ml.param.{ParamMap, Param, Params}
/**
* :: DeveloperApi ::
* Common params for [[TrainValidationSplitParams]] and [[CrossValidatorParams]].
*/
@DeveloperApi
private[ml] trait ValidatorParams extends Params {
/**
* param for the estimator to be validated
* @group param
*/
val estimator: Param[Estimator[_]] = new Param(this, "estimator", "estimator for selection")
/** @group getParam */
def getEstimator: Estimator[_] = $(estimator)
/**
* param for estimator param maps
* @group param
*/
val estimatorParamMaps: Param[Array[ParamMap]] =
new Param(this, "estimatorParamMaps", "param maps for the estimator")
/** @group getParam */
def getEstimatorParamMaps: Array[ParamMap] = $(estimatorParamMaps)
/**
* param for the evaluator used to select hyper-parameters that maximize the validated metric
* @group param
*/
val evaluator: Param[Evaluator] = new Param(this, "evaluator",
"evaluator used to select hyper-parameters that maximize the validated metric")
/** @group getParam */
def getEvaluator: Evaluator = $(evaluator)
}
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