Class/Object

com.johnsnowlabs.nlp.annotators.ner.dl

NerDLApproach

Related Docs: object NerDLApproach | package dl

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class NerDLApproach extends AnnotatorApproach[NerDLModel] with NerApproach[NerDLApproach] with Logging with ParamsAndFeaturesWritable

This Named Entity recognition annotator allows to train generic NER model based on Neural Networks.

The architecture of the neural network is a Char CNNs - BiLSTM - CRF that achieves state-of-the-art in most datasets.

For instantiated/pretrained models, see NerDLModel.

The training data should be a labeled Spark Dataset, in the format of CoNLL 2003 IOB with Annotation type columns. The data should have columns of type DOCUMENT, TOKEN, WORD_EMBEDDINGS and an additional label column of annotator type NAMED_ENTITY. Excluding the label, this can be done with for example

For extended examples of usage, see the Spark NLP Workshop and the NerDLSpec.

Example

import com.johnsnowlabs.nlp.base.DocumentAssembler
import com.johnsnowlabs.nlp.annotators.Tokenizer
import com.johnsnowlabs.nlp.annotators.sbd.pragmatic.SentenceDetector
import com.johnsnowlabs.nlp.embeddings.BertEmbeddings
import com.johnsnowlabs.nlp.annotators.ner.dl.NerDLApproach
import com.johnsnowlabs.nlp.training.CoNLL
import org.apache.spark.ml.Pipeline

// First extract the prerequisites for the NerDLApproach
val documentAssembler = new DocumentAssembler()
  .setInputCol("text")
  .setOutputCol("document")

val sentence = new SentenceDetector()
  .setInputCols("document")
  .setOutputCol("sentence")

val tokenizer = new Tokenizer()
  .setInputCols("sentence")
  .setOutputCol("token")

val embeddings = BertEmbeddings.pretrained()
  .setInputCols("sentence", "token")
  .setOutputCol("embeddings")

// Then the training can start
val nerTagger = new NerDLApproach()
  .setInputCols("sentence", "token", "embeddings")
  .setLabelColumn("label")
  .setOutputCol("ner")
  .setMaxEpochs(1)
  .setRandomSeed(0)
  .setVerbose(0)

val pipeline = new Pipeline().setStages(Array(
  documentAssembler,
  sentence,
  tokenizer,
  embeddings,
  nerTagger
))

// We use the text and labels from the CoNLL dataset
val conll = CoNLL()
val trainingData = conll.readDataset(spark, "src/test/resources/conll2003/eng.train")

val pipelineModel = pipeline.fit(trainingData)
See also

NerConverter to further process the results

NerCrfApproach for a generic CRF approach

Linear Supertypes
ParamsAndFeaturesWritable, HasFeatures, Logging, NerApproach[NerDLApproach], AnnotatorApproach[NerDLModel], CanBeLazy, DefaultParamsWritable, MLWritable, HasOutputAnnotatorType, HasOutputAnnotationCol, HasInputAnnotationCols, Estimator[NerDLModel], PipelineStage, Logging, Params, Serializable, Serializable, Identifiable, AnyRef, Any
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Inherited
  1. NerDLApproach
  2. ParamsAndFeaturesWritable
  3. HasFeatures
  4. Logging
  5. NerApproach
  6. AnnotatorApproach
  7. CanBeLazy
  8. DefaultParamsWritable
  9. MLWritable
  10. HasOutputAnnotatorType
  11. HasOutputAnnotationCol
  12. HasInputAnnotationCols
  13. Estimator
  14. PipelineStage
  15. Logging
  16. Params
  17. Serializable
  18. Serializable
  19. Identifiable
  20. AnyRef
  21. Any
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Instance Constructors

  1. new NerDLApproach()

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  2. new NerDLApproach(uid: String)

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    uid

    required uid for storing annotator to disk

Type Members

  1. type AnnotatorType = String

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    Definition Classes
    HasOutputAnnotatorType

Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any
  3. final def $[T](param: Param[T]): T

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    Attributes
    protected
    Definition Classes
    Params
  4. def $$[T](feature: StructFeature[T]): T

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    Attributes
    protected
    Definition Classes
    HasFeatures
  5. def $$[K, V](feature: MapFeature[K, V]): Map[K, V]

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    Attributes
    protected
    Definition Classes
    HasFeatures
  6. def $$[T](feature: SetFeature[T]): Set[T]

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    Attributes
    protected
    Definition Classes
    HasFeatures
  7. def $$[T](feature: ArrayFeature[T]): Array[T]

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    Attributes
    protected
    Definition Classes
    HasFeatures
  8. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  9. def _fit(dataset: Dataset[_], recursiveStages: Option[PipelineModel]): NerDLModel

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    Attributes
    protected
    Definition Classes
    AnnotatorApproach
  10. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  11. val batchSize: IntParam

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    Batch size (Default: 8)

  12. def beforeTraining(spark: SparkSession): Unit

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    Definition Classes
    NerDLApproachAnnotatorApproach
  13. def calculateEmbeddingsDim(sentences: Seq[WordpieceEmbeddingsSentence]): Int

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  14. final def checkSchema(schema: StructType, inputAnnotatorType: String): Boolean

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    Attributes
    protected
    Definition Classes
    HasInputAnnotationCols
  15. final def clear(param: Param[_]): NerDLApproach.this.type

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    Definition Classes
    Params
  16. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  17. val configProtoBytes: IntArrayParam

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    ConfigProto from tensorflow, serialized into byte array.

    ConfigProto from tensorflow, serialized into byte array. Get with config_proto.SerializeToString()

  18. final def copy(extra: ParamMap): Estimator[NerDLModel]

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    Definition Classes
    AnnotatorApproach → Estimator → PipelineStage → Params
  19. def copyValues[T <: Params](to: T, extra: ParamMap): T

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    Attributes
    protected
    Definition Classes
    Params
  20. final def defaultCopy[T <: Params](extra: ParamMap): T

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    Attributes
    protected
    Definition Classes
    Params
  21. val description: String

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    Trains Tensorflow based Char-CNN-BLSTM model

    Trains Tensorflow based Char-CNN-BLSTM model

    Definition Classes
    NerDLApproachAnnotatorApproach
  22. val dropout: FloatParam

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    Dropout coefficient (Default: 0.5f)

  23. val enableMemoryOptimizer: BooleanParam

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    Whether to optimize for large datasets or not (Default: false).

    Whether to optimize for large datasets or not (Default: false). Enabling this option can slow down training.

  24. val enableOutputLogs: BooleanParam

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    Whether to output to annotators log folder (Default: false)

  25. val entities: StringArrayParam

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    Entities to recognize

    Entities to recognize

    Definition Classes
    NerApproach
  26. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  27. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  28. val evaluationLogExtended: BooleanParam

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    Whether logs for validation to be extended (Default: false): it displays time and evaluation of each label

  29. def explainParam(param: Param[_]): String

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    Definition Classes
    Params
  30. def explainParams(): String

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    Definition Classes
    Params
  31. final def extractParamMap(): ParamMap

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    Definition Classes
    Params
  32. final def extractParamMap(extra: ParamMap): ParamMap

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    Definition Classes
    Params
  33. val features: ArrayBuffer[Feature[_, _, _]]

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    Definition Classes
    HasFeatures
  34. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  35. final def fit(dataset: Dataset[_]): NerDLModel

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    Definition Classes
    AnnotatorApproach → Estimator
  36. def fit(dataset: Dataset[_], paramMaps: Array[ParamMap]): Seq[NerDLModel]

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    Definition Classes
    Estimator
    Annotations
    @Since( "2.0.0" )
  37. def fit(dataset: Dataset[_], paramMap: ParamMap): NerDLModel

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    Definition Classes
    Estimator
    Annotations
    @Since( "2.0.0" )
  38. def fit(dataset: Dataset[_], firstParamPair: ParamPair[_], otherParamPairs: ParamPair[_]*): NerDLModel

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    Definition Classes
    Estimator
    Annotations
    @Since( "2.0.0" ) @varargs()
  39. def get[T](feature: StructFeature[T]): Option[T]

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    Attributes
    protected
    Definition Classes
    HasFeatures
  40. def get[K, V](feature: MapFeature[K, V]): Option[Map[K, V]]

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    Attributes
    protected
    Definition Classes
    HasFeatures
  41. def get[T](feature: SetFeature[T]): Option[Set[T]]

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    Attributes
    protected
    Definition Classes
    HasFeatures
  42. def get[T](feature: ArrayFeature[T]): Option[Array[T]]

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    Attributes
    protected
    Definition Classes
    HasFeatures
  43. final def get[T](param: Param[T]): Option[T]

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    Definition Classes
    Params
  44. def getBatchSize: Int

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    Batch size

  45. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  46. def getConfigProtoBytes: Option[Array[Byte]]

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    ConfigProto from tensorflow, serialized into byte array.

    ConfigProto from tensorflow, serialized into byte array. Get with config_proto.SerializeToString()

  47. def getDataSetParams(dsIt: Iterator[Array[(TextSentenceLabels, WordpieceEmbeddingsSentence)]]): (Set[String], Set[Char], Int, Long)

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  48. final def getDefault[T](param: Param[T]): Option[T]

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    Definition Classes
    Params
  49. def getDropout: Float

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    Dropout coefficient

  50. def getEnableMemoryOptimizer: Boolean

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    Memory Optimizer

  51. def getEnableOutputLogs: Boolean

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    Whether to output to annotators log folder

  52. def getIncludeConfidence: Boolean

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    whether to include confidence scores in annotation metadata

  53. def getInputCols: Array[String]

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    returns

    input annotations columns currently used

    Definition Classes
    HasInputAnnotationCols
  54. def getIteratorFunc(dataset: Dataset[Row]): () ⇒ Iterator[Array[(TextSentenceLabels, WordpieceEmbeddingsSentence)]]

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  55. def getLazyAnnotator: Boolean

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    Definition Classes
    CanBeLazy
  56. def getLogName: String

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    Definition Classes
    NerDLApproachLogging
  57. def getLr: Float

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    Learning Rate

  58. def getMaxEpochs: Int

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    Maximum number of epochs to train

    Maximum number of epochs to train

    Definition Classes
    NerApproach
  59. def getMinEpochs: Int

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    Minimum number of epochs to train

    Minimum number of epochs to train

    Definition Classes
    NerApproach
  60. final def getOrDefault[T](param: Param[T]): T

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    Definition Classes
    Params
  61. final def getOutputCol: String

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    Gets annotation column name going to generate

    Gets annotation column name going to generate

    Definition Classes
    HasOutputAnnotationCol
  62. def getOutputLogsPath: String

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    Folder path to save training logs

  63. def getParam(paramName: String): Param[Any]

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    Definition Classes
    Params
  64. def getPo: Float

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    Learning rate decay coefficient.

    Learning rate decay coefficient. Real Learning Rage = lr / (1 + po * epoch)

  65. def getRandomSeed: Int

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    Random seed

    Random seed

    Definition Classes
    NerApproach
  66. def getUseContrib: Boolean

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    Whether to use contrib LSTM Cells.

    Whether to use contrib LSTM Cells. Not compatible with Windows. Might slightly improve accuracy.

  67. def getValidationSplit: Float

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    Choose the proportion of training dataset to be validated against the model on each Epoch.

    Choose the proportion of training dataset to be validated against the model on each Epoch. The value should be between 0.0 and 1.0 and by default it is 0.0 and off.

  68. def getVerbose: Int

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    Level of verbosity during training

    Level of verbosity during training

    Definition Classes
    NerApproach
  69. val graphFolder: Param[String]

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    Folder path that contain external graph files

  70. final def hasDefault[T](param: Param[T]): Boolean

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    Definition Classes
    Params
  71. def hasParam(paramName: String): Boolean

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    Definition Classes
    Params
  72. def hashCode(): Int

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    Definition Classes
    AnyRef → Any
  73. val includeAllConfidenceScores: BooleanParam

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    whether to include all confidence scores in annotation metadata or just score of the predicted tag

  74. val includeConfidence: BooleanParam

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    Whether to include confidence scores in annotation metadata (Default: false)

  75. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean

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    Attributes
    protected
    Definition Classes
    Logging
  76. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  77. val inputAnnotatorTypes: Array[String]

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    Input annotator types: DOCUMENT, TOKEN, WORD_EMBEDDINGS

    Input annotator types: DOCUMENT, TOKEN, WORD_EMBEDDINGS

    Definition Classes
    NerDLApproachHasInputAnnotationCols
  78. final val inputCols: StringArrayParam

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    columns that contain annotations necessary to run this annotator AnnotatorType is used both as input and output columns if not specified

    columns that contain annotations necessary to run this annotator AnnotatorType is used both as input and output columns if not specified

    Attributes
    protected
    Definition Classes
    HasInputAnnotationCols
  79. final def isDefined(param: Param[_]): Boolean

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    Definition Classes
    Params
  80. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  81. final def isSet(param: Param[_]): Boolean

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    Definition Classes
    Params
  82. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging
  83. val labelColumn: Param[String]

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    Column with label per each token

    Column with label per each token

    Definition Classes
    NerApproach
  84. val lazyAnnotator: BooleanParam

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    Definition Classes
    CanBeLazy
  85. def log(value: ⇒ String, minLevel: Level): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  86. def log: Logger

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    Attributes
    protected
    Definition Classes
    Logging
  87. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  88. def logDebug(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  89. def logError(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  90. def logError(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  91. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  92. def logInfo(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  93. def logName: String

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    Attributes
    protected
    Definition Classes
    Logging
  94. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  95. def logTrace(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  96. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  97. def logWarning(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  98. val logger: Logger

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    Attributes
    protected
    Definition Classes
    Logging
  99. val lr: FloatParam

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    Learning Rate (Default: 1e-3f)

  100. val maxEpochs: IntParam

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    Maximum number of epochs to train

    Maximum number of epochs to train

    Definition Classes
    NerApproach
  101. val minEpochs: IntParam

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    Minimum number of epochs to train

    Minimum number of epochs to train

    Definition Classes
    NerApproach
  102. def msgHelper(schema: StructType): String

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    Attributes
    protected
    Definition Classes
    HasInputAnnotationCols
  103. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  104. final def notify(): Unit

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    Definition Classes
    AnyRef
  105. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
  106. def onTrained(model: NerDLModel, spark: SparkSession): Unit

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    Definition Classes
    AnnotatorApproach
  107. def onWrite(path: String, spark: SparkSession): Unit

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    Attributes
    protected
    Definition Classes
    ParamsAndFeaturesWritable
  108. val outputAnnotatorType: String

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    Output annotator types: NAMED_ENTITY

    Output annotator types: NAMED_ENTITY

    Definition Classes
    NerDLApproachHasOutputAnnotatorType
  109. final val outputCol: Param[String]

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    Attributes
    protected
    Definition Classes
    HasOutputAnnotationCol
  110. def outputLog(value: ⇒ String, uuid: String, shouldLog: Boolean, outputLogsPath: String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  111. val outputLogsPath: Param[String]

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    Folder path to save training logs (Default: "")

  112. lazy val params: Array[Param[_]]

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    Definition Classes
    Params
  113. val po: FloatParam

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    Learning rate decay coefficient (Default: 0.005f).

    Learning rate decay coefficient (Default: 0.005f). Real Learning Rate calculates to lr / (1 + po * epoch)

  114. val randomSeed: IntParam

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    Random seed

    Random seed

    Definition Classes
    NerApproach
  115. def save(path: String): Unit

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    Definition Classes
    MLWritable
    Annotations
    @Since( "1.6.0" ) @throws( ... )
  116. def set[T](feature: StructFeature[T], value: T): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    HasFeatures
  117. def set[K, V](feature: MapFeature[K, V], value: Map[K, V]): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    HasFeatures
  118. def set[T](feature: SetFeature[T], value: Set[T]): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    HasFeatures
  119. def set[T](feature: ArrayFeature[T], value: Array[T]): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    HasFeatures
  120. final def set(paramPair: ParamPair[_]): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    Params
  121. final def set(param: String, value: Any): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    Params
  122. final def set[T](param: Param[T], value: T): NerDLApproach.this.type

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    Definition Classes
    Params
  123. def setBatchSize(batch: Int): NerDLApproach.this.type

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    Batch size

  124. def setConfigProtoBytes(bytes: Array[Int]): NerDLApproach.this.type

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    ConfigProto from tensorflow, serialized into byte array.

    ConfigProto from tensorflow, serialized into byte array. Get with config_proto.SerializeToString()

  125. def setDefault[T](feature: StructFeature[T], value: () ⇒ T): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    HasFeatures
  126. def setDefault[K, V](feature: MapFeature[K, V], value: () ⇒ Map[K, V]): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    HasFeatures
  127. def setDefault[T](feature: SetFeature[T], value: () ⇒ Set[T]): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    HasFeatures
  128. def setDefault[T](feature: ArrayFeature[T], value: () ⇒ Array[T]): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    HasFeatures
  129. final def setDefault(paramPairs: ParamPair[_]*): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    Params
  130. final def setDefault[T](param: Param[T], value: T): NerDLApproach.this.type

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    Attributes
    protected
    Definition Classes
    Params
  131. def setDropout(dropout: Float): NerDLApproach.this.type

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    Dropout coefficient

  132. def setEnableMemoryOptimizer(value: Boolean): NerDLApproach.this.type

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    Whether to optimize for large datasets or not.

    Whether to optimize for large datasets or not. Enabling this option can slow down training.

  133. def setEnableOutputLogs(enableOutputLogs: Boolean): NerDLApproach.this.type

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    Whether to output to annotators log folder

  134. def setEntities(tags: Array[String]): NerDLApproach

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    Entities to recognize

    Entities to recognize

    Definition Classes
    NerApproach
  135. def setEvaluationLogExtended(evaluationLogExtended: Boolean): NerDLApproach.this.type

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    Whether logs for validation to be extended: it displays time and evaluation of each label.

    Whether logs for validation to be extended: it displays time and evaluation of each label. Default is false.

  136. def setGraphFolder(path: String): NerDLApproach.this.type

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    Folder path that contain external graph files

  137. def setIncludeAllConfidenceScores(value: Boolean): NerDLApproach.this.type

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    whether to include confidence scores for all tags rather than just for the predicted one

  138. def setIncludeConfidence(value: Boolean): NerDLApproach.this.type

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    Whether to include confidence scores in annotation metadata

  139. final def setInputCols(value: String*): NerDLApproach.this.type

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    Definition Classes
    HasInputAnnotationCols
  140. final def setInputCols(value: Array[String]): NerDLApproach.this.type

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    Overrides required annotators column if different than default

    Overrides required annotators column if different than default

    Definition Classes
    HasInputAnnotationCols
  141. def setLabelColumn(column: String): NerDLApproach

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    Column with label per each token

    Column with label per each token

    Definition Classes
    NerApproach
  142. def setLazyAnnotator(value: Boolean): NerDLApproach.this.type

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    Definition Classes
    CanBeLazy
  143. def setLr(lr: Float): NerDLApproach.this.type

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    Learning Rate

  144. def setMaxEpochs(epochs: Int): NerDLApproach

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    Maximum number of epochs to train

    Maximum number of epochs to train

    Definition Classes
    NerApproach
  145. def setMinEpochs(epochs: Int): NerDLApproach

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    Minimum number of epochs to train

    Minimum number of epochs to train

    Definition Classes
    NerApproach
  146. final def setOutputCol(value: String): NerDLApproach.this.type

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    Overrides annotation column name when transforming

    Overrides annotation column name when transforming

    Definition Classes
    HasOutputAnnotationCol
  147. def setOutputLogsPath(path: String): NerDLApproach.this.type

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    Folder path to save training logs

  148. def setPo(po: Float): NerDLApproach.this.type

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    Learning rate decay coefficient.

    Learning rate decay coefficient. Real Learning Rage = lr / (1 + po * epoch)

  149. def setRandomSeed(seed: Int): NerDLApproach

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    Random seed

    Random seed

    Definition Classes
    NerApproach
  150. def setTestDataset(er: ExternalResource): NerDLApproach.this.type

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    Path to test dataset.

    Path to test dataset. If set, it is used to calculate statistics on it during training.

  151. def setTestDataset(path: String, readAs: Format = ReadAs.SPARK, options: Map[String, String] = Map("format" -> "parquet")): NerDLApproach.this.type

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    Path to test dataset.

    Path to test dataset. If set, it is used to calculate statistics on it during training.

  152. def setUseContrib(value: Boolean): NerDLApproach.this.type

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    Whether to use contrib LSTM Cells.

    Whether to use contrib LSTM Cells. Not compatible with Windows. Might slightly improve accuracy.

  153. def setValidationSplit(validationSplit: Float): NerDLApproach.this.type

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    Choose the proportion of training dataset to be validated against the model on each Epoch.

    Choose the proportion of training dataset to be validated against the model on each Epoch. The value should be between 0.0 and 1.0 and by default it is 0.0 and off.

  154. def setVerbose(verbose: Level): NerDLApproach

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    Level of verbosity during training

    Level of verbosity during training

    Definition Classes
    NerApproach
  155. def setVerbose(verbose: Int): NerDLApproach

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    Level of verbosity during training

    Level of verbosity during training

    Definition Classes
    NerApproach
  156. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  157. val testDataset: ExternalResourceParam

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    Path to test dataset.

    Path to test dataset. If set, it is used to calculate statistics on it during training.

  158. def toString(): String

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    Definition Classes
    Identifiable → AnyRef → Any
  159. def train(dataset: Dataset[_], recursivePipeline: Option[PipelineModel]): NerDLModel

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    Definition Classes
    NerDLApproachAnnotatorApproach
  160. final def transformSchema(schema: StructType): StructType

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    requirement for pipeline transformation validation.

    requirement for pipeline transformation validation. It is called on fit()

    Definition Classes
    AnnotatorApproach → PipelineStage
  161. def transformSchema(schema: StructType, logging: Boolean): StructType

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    Attributes
    protected
    Definition Classes
    PipelineStage
    Annotations
    @DeveloperApi()
  162. val uid: String

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    required uid for storing annotator to disk

    required uid for storing annotator to disk

    Definition Classes
    NerDLApproach → Identifiable
  163. val useContrib: BooleanParam

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    Whether to use contrib LSTM Cells (Default: true).

    Whether to use contrib LSTM Cells (Default: true). Not compatible with Windows. Might slightly improve accuracy.

  164. def validate(schema: StructType): Boolean

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    takes a Dataset and checks to see if all the required annotation types are present.

    takes a Dataset and checks to see if all the required annotation types are present.

    schema

    to be validated

    returns

    True if all the required types are present, else false

    Attributes
    protected
    Definition Classes
    AnnotatorApproach
  165. val validationSplit: FloatParam

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    Choose the proportion of training dataset to be validated against the model on each Epoch (Default: 0.0f).

    Choose the proportion of training dataset to be validated against the model on each Epoch (Default: 0.0f). The value should be between 0.0 and 1.0 and by default it is 0.0 and off.

  166. val verbose: IntParam

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    Level of verbosity during training (Default: Verbose.Silent.id)

    Level of verbosity during training (Default: Verbose.Silent.id)

    Definition Classes
    NerApproach
  167. val verboseLevel: Level

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    Definition Classes
    NerDLApproachLogging
  168. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  169. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  170. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  171. def write: MLWriter

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    Definition Classes
    ParamsAndFeaturesWritable → DefaultParamsWritable → MLWritable

Inherited from ParamsAndFeaturesWritable

Inherited from HasFeatures

Inherited from Logging

Inherited from NerApproach[NerDLApproach]

Inherited from AnnotatorApproach[NerDLModel]

Inherited from CanBeLazy

Inherited from DefaultParamsWritable

Inherited from MLWritable

Inherited from HasOutputAnnotatorType

Inherited from HasOutputAnnotationCol

Inherited from HasInputAnnotationCols

Inherited from Estimator[NerDLModel]

Inherited from PipelineStage

Inherited from Logging

Inherited from Params

Inherited from Serializable

Inherited from Serializable

Inherited from Identifiable

Inherited from AnyRef

Inherited from Any

Parameters

A list of (hyper-)parameter keys this annotator can take. Users can set and get the parameter values through setters and getters, respectively.

Annotator types

Required input and expected output annotator types

Members

Parameter setters

Parameter getters