Class/Object

com.johnsnowlabs.nlp.annotators

StopWordsCleaner

Related Docs: object StopWordsCleaner | package annotators

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class StopWordsCleaner extends AnnotatorModel[StopWordsCleaner]

This annotator excludes from a sequence of strings (e.g. the output of a Tokenizer, Normalizer, Lemmatizer, and Stemmer) and drops all the stop words from the input sequences.

See https://github.com/JohnSnowLabs/spark-nlp/blob/master/src/test/scala/com/johnsnowlabs/nlp/annotators/StopWordsCleanerTestSpec.scala for example of how to use this API.

Linear Supertypes
AnnotatorModel[StopWordsCleaner], CanBeLazy, RawAnnotator[StopWordsCleaner], HasOutputAnnotationCol, HasInputAnnotationCols, HasOutputAnnotatorType, ParamsAndFeaturesWritable, HasFeatures, DefaultParamsWritable, MLWritable, Model[StopWordsCleaner], Transformer, PipelineStage, Logging, Params, Serializable, Serializable, Identifiable, AnyRef, Any
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Inherited
  1. StopWordsCleaner
  2. AnnotatorModel
  3. CanBeLazy
  4. RawAnnotator
  5. HasOutputAnnotationCol
  6. HasInputAnnotationCols
  7. HasOutputAnnotatorType
  8. ParamsAndFeaturesWritable
  9. HasFeatures
  10. DefaultParamsWritable
  11. MLWritable
  12. Model
  13. Transformer
  14. PipelineStage
  15. Logging
  16. Params
  17. Serializable
  18. Serializable
  19. Identifiable
  20. AnyRef
  21. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new StopWordsCleaner()

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  2. new StopWordsCleaner(uid: String)

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Type Members

  1. type AnnotationContent = Seq[Row]

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    internal types to show Rows as a relevant StructType Should be deleted once Spark releases UserDefinedTypes to @developerAPI

    internal types to show Rows as a relevant StructType Should be deleted once Spark releases UserDefinedTypes to @developerAPI

    Attributes
    protected
    Definition Classes
    AnnotatorModel
  2. 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 _transform(dataset: Dataset[_], recursivePipeline: Option[PipelineModel]): DataFrame

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    Attributes
    protected
    Definition Classes
    AnnotatorModel
  10. def afterAnnotate(dataset: DataFrame): DataFrame

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    Attributes
    protected
    Definition Classes
    AnnotatorModel
  11. def annotate(annotations: Seq[Annotation]): Seq[Annotation]

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    takes a document and annotations and produces new annotations of this annotator's annotation type

    takes a document and annotations and produces new annotations of this annotator's annotation type

    annotations

    Annotations that correspond to inputAnnotationCols generated by previous annotators if any

    returns

    any number of annotations processed for every input annotation. Not necessary one to one relationship

    Definition Classes
    StopWordsCleanerAnnotatorModel
  12. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  13. def beforeAnnotate(dataset: Dataset[_]): Dataset[_]

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    Attributes
    protected
    Definition Classes
    AnnotatorModel
  14. val caseSensitive: BooleanParam

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    whether to do a case-sensitive comparison over the stop words

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

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

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    Definition Classes
    Params
  17. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  18. def copy(extra: ParamMap): StopWordsCleaner

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    requirement for annotators copies

    requirement for annotators copies

    Definition Classes
    RawAnnotator → Model → Transformer → 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. def dfAnnotate: UserDefinedFunction

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    Wraps annotate to happen inside SparkSQL user defined functions in order to act with org.apache.spark.sql.Column

    Wraps annotate to happen inside SparkSQL user defined functions in order to act with org.apache.spark.sql.Column

    returns

    udf function to be applied to inputCols using this annotator's annotate function as part of ML transformation

    Attributes
    protected
    Definition Classes
    AnnotatorModel
  22. final def eq(arg0: AnyRef): Boolean

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

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    Definition Classes
    AnyRef → Any
  24. def explainParam(param: Param[_]): String

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    Definition Classes
    Params
  25. def explainParams(): String

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    Definition Classes
    Params
  26. def extraValidate(structType: StructType): Boolean

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    Attributes
    protected
    Definition Classes
    RawAnnotator
  27. def extraValidateMsg: String

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    Override for additional custom schema checks

    Override for additional custom schema checks

    Attributes
    protected
    Definition Classes
    RawAnnotator
  28. final def extractParamMap(): ParamMap

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

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

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    Definition Classes
    HasFeatures
  31. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  32. def get[T](feature: StructFeature[T]): Option[T]

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

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

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

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

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    Definition Classes
    Params
  37. def getCaseSensitive: Boolean

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    Whether to do a case sensitive comparison over the stop words.

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

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    Definition Classes
    AnyRef → Any
  39. final def getDefault[T](param: Param[T]): Option[T]

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    Definition Classes
    Params
  40. def getInputCols: Array[String]

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    returns

    input annotations columns currently used

    Definition Classes
    HasInputAnnotationCols
  41. def getLazyAnnotator: Boolean

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    Definition Classes
    CanBeLazy
  42. def getLocale: String

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    Locale of the input for case insensitive matching.

    Locale of the input for case insensitive matching. Ignored when caseSensitive is true

  43. final def getOrDefault[T](param: Param[T]): T

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    Definition Classes
    Params
  44. 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
  45. def getParam(paramName: String): Param[Any]

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    Definition Classes
    Params
  46. def getStopWords: Array[String]

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    The words to be filtered out

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

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

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    Definition Classes
    Params
  49. def hasParent: Boolean

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    Definition Classes
    Model
  50. def hashCode(): Int

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    Definition Classes
    AnyRef → Any
  51. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean

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

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    Attributes
    protected
    Definition Classes
    Logging
  53. val inputAnnotatorTypes: Array[AnnotatorType]

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    Input annotator type: TOKEN

    Input annotator type: TOKEN

    Definition Classes
    StopWordsCleanerHasInputAnnotationCols
  54. 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
  55. final def isDefined(param: Param[_]): Boolean

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

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

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    Definition Classes
    Params
  58. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging
  59. val lazyAnnotator: BooleanParam

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    Definition Classes
    CanBeLazy
  60. val locale: Param[String]

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    Locale of the input for case insensitive matching.

    Locale of the input for case insensitive matching. Ignored when caseSensitive is true.

  61. def log: Logger

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

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

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

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

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

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

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    Attributes
    protected
    Definition Classes
    Logging
  68. def logName: String

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

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

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

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

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    Attributes
    protected
    Definition Classes
    Logging
  73. def msgHelper(schema: StructType): String

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

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

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

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    Definition Classes
    AnyRef
  77. def onWrite(path: String, spark: SparkSession): Unit

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    Attributes
    protected
    Definition Classes
    ParamsAndFeaturesWritable
  78. val outputAnnotatorType: AnnotatorType

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    Output annotator type: TOKEN

    Output annotator type: TOKEN

    Definition Classes
    StopWordsCleanerHasOutputAnnotatorType
  79. final val outputCol: Param[String]

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    Attributes
    protected
    Definition Classes
    HasOutputAnnotationCol
  80. lazy val params: Array[Param[_]]

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    Definition Classes
    Params
  81. var parent: Estimator[StopWordsCleaner]

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    Definition Classes
    Model
  82. def save(path: String): Unit

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

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

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

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

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

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

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

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    Definition Classes
    Params
  90. def setCaseSensitive(value: Boolean): StopWordsCleaner.this.type

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    Whether to do a case sensitive comparison over the stop words.

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

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

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

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

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

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

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    Attributes
    protected
    Definition Classes
    Params
  97. final def setInputCols(value: String*): StopWordsCleaner.this.type

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    Definition Classes
    HasInputAnnotationCols
  98. final def setInputCols(value: Array[String]): StopWordsCleaner.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
  99. def setLazyAnnotator(value: Boolean): StopWordsCleaner.this.type

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    Definition Classes
    CanBeLazy
  100. def setLocale(value: String): StopWordsCleaner.this.type

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    Locale of the input for case insensitive matching.

    Locale of the input for case insensitive matching. Ignored when caseSensitive is true

  101. final def setOutputCol(value: String): StopWordsCleaner.this.type

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    Overrides annotation column name when transforming

    Overrides annotation column name when transforming

    Definition Classes
    HasOutputAnnotationCol
  102. def setParent(parent: Estimator[StopWordsCleaner]): StopWordsCleaner

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    Definition Classes
    Model
  103. def setStopWords(value: Array[String]): StopWordsCleaner.this.type

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    The words to be filtered out

  104. val stopWords: StringArrayParam

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    the words to be filtered out.

    the words to be filtered out. by default it's english stop words from Spark ML

  105. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  106. def toString(): String

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    Definition Classes
    Identifiable → AnyRef → Any
  107. final def transform(dataset: Dataset[_]): DataFrame

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    Given requirements are met, this applies ML transformation within a Pipeline or stand-alone Output annotation will be generated as a new column, previous annotations are still available separately metadata is built at schema level to record annotations structural information outside its content

    Given requirements are met, this applies ML transformation within a Pipeline or stand-alone Output annotation will be generated as a new column, previous annotations are still available separately metadata is built at schema level to record annotations structural information outside its content

    dataset

    Dataset[Row]

    Definition Classes
    AnnotatorModel → Transformer
  108. def transform(dataset: Dataset[_], paramMap: ParamMap): DataFrame

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    Definition Classes
    Transformer
    Annotations
    @Since( "2.0.0" )
  109. def transform(dataset: Dataset[_], firstParamPair: ParamPair[_], otherParamPairs: ParamPair[_]*): DataFrame

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    Definition Classes
    Transformer
    Annotations
    @Since( "2.0.0" ) @varargs()
  110. 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
    RawAnnotator → PipelineStage
  111. def transformSchema(schema: StructType, logging: Boolean): StructType

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

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    Definition Classes
    StopWordsCleaner → Identifiable
  113. 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
    RawAnnotator
  114. final def wait(): Unit

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

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  117. def wrapColumnMetadata(col: Column): Column

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    Attributes
    protected
    Definition Classes
    RawAnnotator
  118. def write: MLWriter

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    Definition Classes
    ParamsAndFeaturesWritable → DefaultParamsWritable → MLWritable

Inherited from CanBeLazy

Inherited from RawAnnotator[StopWordsCleaner]

Inherited from HasOutputAnnotationCol

Inherited from HasInputAnnotationCols

Inherited from HasOutputAnnotatorType

Inherited from ParamsAndFeaturesWritable

Inherited from HasFeatures

Inherited from DefaultParamsWritable

Inherited from MLWritable

Inherited from Model[StopWordsCleaner]

Inherited from Transformer

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

Annotator types

Required input and expected output annotator types

Members

Parameter setters

Parameter getters