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package de.monticore.lang.monticar;
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grammar CNNTrain extends de.monticore.lang.monticar.Common2, de.monticore.lang.NumberUnit{
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    CNNTrainCompilationUnit = Configuration;
    symbol scope Configuration = "configuration"
                                 name:Name&
                                 ("(" parameters:(ConfigParameter || ",")* ")")? "{"
                                 entries:ConfigEntry* "}";

    ConfigParameter = Name&;
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    interface Entry;
    ast Entry = method String getName(){}
                method ASTConfigValue getValue(){};
    interface ConfigValue;
    interface ConfigEntry extends Entry;
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    interface VariableReference;
    ast VariableReference = method String getName(){};
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    ContextEntry implements ConfigEntry = name:"context" ":" value:ContextValue;
    ModelPathEntry implements ConfigEntry = name:"model_path" ":" value:PathValue;
    TrainDataEntry implements ConfigEntry = name:"train_data" ":" value:DataValue;
    TrainLabelEntry implements ConfigEntry = name:"train_label" ":" value:DataValue;
    TestDataEntry implements ConfigEntry = name:"test_data" ":" value:DataValue;
    TestLabelEntry implements ConfigEntry = name:"test_label" ":" value:DataValue;
    LoadingModeEntry implements ConfigEntry = name:"loading_mode" ":" value:LoadingModeValue;
    OptimizerEntry implements ConfigEntry = name:"optimizer" ":" value:OptimizerValue;
    ValidationSplitEntry implements ConfigEntry = name:"validation_split" ":" value:NumberValue;
    EvalMetricEntry implements ConfigEntry = name:"eval_metric" ":" value:EvalMetricValue;
    NumEpochEntry implements ConfigEntry = name:"num_epoch" ":" value:IntegerValue;
    BatchSizeEntry implements ConfigEntry = name:"batch_size" ":" value:IntegerValue;
    CheckpointEntry implements ConfigEntry = name:"checkpoint" ":" value:IntegerValue;
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    PathValue implements ConfigValue = path:StringLiteral;
    ContextValue implements ConfigValue = (GPU:"gpu" | CPU:"cpu");
    EvalMetricValue implements ConfigValue =(accuracy:"accuracy"
                                           | crossEntropy:"ce"
                                           | f1:"f1"
                                           | mae:"mae"
                                           | mse:"mse"
                                           | rmse:"rmse"
                                           | topKAccuracy:"top_k_accuracy");
    LRPolicyValue implements ConfigValue =(fixed:"fixed"
                                         | step:"step"
                                         | exp:"exp"
                                         | inv:"inv"
                                         | poly:"poly"
                                         | sigmoid:"sigmoid");
    LoadingModeValue implements ConfigValue =(loadOnly:"load_only"
                                            | loadAndTrain:"load_and_train"
                                            | overwrite:"overwrite"
                                            | noLoad:"no_load");
    DataValue implements ConfigValue = (DataVariable | PathValue);
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    DataVariable implements VariableReference = Name&;
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    IntegerValue implements ConfigValue = Number;
    NumberValue implements ConfigValue = Number;
    BooleanValue implements ConfigValue = (TRUE:"true" | FALSE:"false");

    interface OptimizerValue extends ConfigValue;
    //ast OptimizerValue = method java.util.List<? extends ASTEntry> getParams(){}
    //                     method String getName(){};

    interface SGDEntry extends Entry;
    SGDOptimizer implements OptimizerValue = name:"sgd" ("{" params:SGDEntry* "}")?;

    interface AdamEntry extends Entry;
    AdamOptimizer implements OptimizerValue = name:"adam" ("{" params:AdamEntry* "}")?;

    interface RmsPropEntry extends Entry;
    RmsPropOptimizer implements OptimizerValue = name:"rmsprop" ("{" params:RmsPropEntry* "}")?;

    interface AdaGradEntry extends Entry;
    AdaGradOptimizer implements OptimizerValue = name:"adagrad" ("{" params:AdaGradEntry* "}")?;

    //DCASGD, SGLD, Ftrl, Adamax

    NesterovOptimizer implements OptimizerValue = name:"nag" ("{" params:SGDEntry* "}")?;

    interface AdaDeltaEntry extends Entry;
    AdaDeltaOptimizer implements OptimizerValue = name:"adadelta" ("{" params:AdaDeltaEntry* "}")?;

    interface GeneralOptimizerEntry extends SGDEntry,AdamEntry,RmsPropEntry,AdaGradEntry,AdaDeltaEntry;

    LearningRateEntry implements GeneralOptimizerEntry = name:"learning_rate" ":" value:NumberValue;
    WeightDecayEntry implements GeneralOptimizerEntry = name:"weight_decay" ":" value:NumberValue;
    LRDecayEntry implements GeneralOptimizerEntry = name:"learning_rate_decay" ":" value:NumberValue;
    LRPolicyEntry implements GeneralOptimizerEntry = name:"learning_rate_policy" ":" value:LRPolicyValue;
    RescaleGradEntry implements GeneralOptimizerEntry = name:"rescale_grad" ":" value:NumberValue;
    ClipGradEntry implements GeneralOptimizerEntry = name:"clip_gradient" ":" value:NumberValue;
    StepSizeEntry implements GeneralOptimizerEntry = name:"step_size" ":" value:IntegerValue;


    MomentumEntry implements SGDEntry = name:"momentum" ":" value:NumberValue;
    Beta1Entry implements AdamEntry = name:"beta1" ":" value:NumberValue;
    Beta2Entry implements AdamEntry = name:"beta2" ":" value:NumberValue;
    EpsilonEntry implements AdamEntry,AdaGradEntry,RmsPropEntry,AdaDeltaEntry = name:"epsilon" ":" value:NumberValue;
    Gamma1Entry implements RmsPropEntry = name:"gamma1" ":" value:NumberValue;
    Gamma2Entry implements RmsPropEntry = name:"gamma2" ":" value:NumberValue;
    CenteredEntry implements RmsPropEntry = name:"centered" ":" value:BooleanValue;
    ClipWeightsEntry implements RmsPropEntry = name:"clip_weights" ":" value:NumberValue;
    RhoEntry implements AdaDeltaEntry = name:"rho" ":" value:NumberValue;
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}