Class/Object

com.johnsnowlabs.nlp.annotators

Lemmatizer

Related Docs: object Lemmatizer | package annotators

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class Lemmatizer extends AnnotatorApproach[LemmatizerModel]

Class to find standarized lemmas from words. Uses a user-provided or default dictionary.

Retrieves lemmas out of words with the objective of returning a base dictionary word. Retrieves the significant part of a word.

lemmaDict: A dictionary of predefined lemmas must be provided

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

Linear Supertypes
AnnotatorApproach[LemmatizerModel], CanBeLazy, DefaultParamsWritable, MLWritable, HasOutputAnnotatorType, HasOutputAnnotationCol, HasInputAnnotationCols, Estimator[LemmatizerModel], PipelineStage, Logging, Params, Serializable, Serializable, Identifiable, AnyRef, Any
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Inherited
  1. Lemmatizer
  2. AnnotatorApproach
  3. CanBeLazy
  4. DefaultParamsWritable
  5. MLWritable
  6. HasOutputAnnotatorType
  7. HasOutputAnnotationCol
  8. HasInputAnnotationCols
  9. Estimator
  10. PipelineStage
  11. Logging
  12. Params
  13. Serializable
  14. Serializable
  15. Identifiable
  16. AnyRef
  17. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new Lemmatizer()

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  2. new Lemmatizer(uid: String)

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    uid

    required internal uid provided by constructor

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

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

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

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    Definition Classes
    Any
  7. def beforeTraining(spark: SparkSession): Unit

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    Definition Classes
    AnnotatorApproach
  8. final def checkSchema(schema: StructType, inputAnnotatorType: String): Boolean

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

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    Definition Classes
    Params
  10. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  11. final def copy(extra: ParamMap): Estimator[LemmatizerModel]

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

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

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    Attributes
    protected
    Definition Classes
    Params
  14. val description: String

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    Retrieves the significant part of a word

    Retrieves the significant part of a word

    Definition Classes
    LemmatizerAnnotatorApproach
  15. val dictionary: ExternalResourceParam

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    lemmatizer external dictionary, needs 'keyDelimiter' and 'valueDelimiter' in options for parsing target text

  16. final def eq(arg0: AnyRef): Boolean

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

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

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    Definition Classes
    Params
  19. def explainParams(): String

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

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

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    Definition Classes
    Params
  22. def finalize(): Unit

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

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

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

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

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    Definition Classes
    Estimator
    Annotations
    @Since( "2.0.0" ) @varargs()
  27. final def get[T](param: Param[T]): Option[T]

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    Definition Classes
    Params
  28. final def getClass(): Class[_]

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

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    Definition Classes
    Params
  30. def getDictionary: ExternalResource

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    Path and options to lemma dictionary, in lemma vs possible words format.

    Path and options to lemma dictionary, in lemma vs possible words format. readAs can be LINE_BY_LINE or SPARK_DATASET. options contain option passed to spark reader if readAs is SPARK_DATASET. lemmatizer external dictionary

  31. def getInputCols: Array[String]

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    returns

    input annotations columns currently used

    Definition Classes
    HasInputAnnotationCols
  32. def getLazyAnnotator: Boolean

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    Definition Classes
    CanBeLazy
  33. final def getOrDefault[T](param: Param[T]): T

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    Definition Classes
    Params
  34. 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
  35. def getParam(paramName: String): Param[Any]

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    Definition Classes
    Params
  36. final def hasDefault[T](param: Param[T]): Boolean

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

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    Definition Classes
    Params
  38. def hashCode(): Int

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

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

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

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    Input annotator type : TOKEN

    Input annotator type : TOKEN

    Definition Classes
    LemmatizerHasInputAnnotationCols
  42. 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
  43. final def isDefined(param: Param[_]): Boolean

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

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

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    Definition Classes
    Params
  46. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging
  47. val lazyAnnotator: BooleanParam

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    Definition Classes
    CanBeLazy
  48. def log: Logger

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

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

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

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

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

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

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    Attributes
    protected
    Definition Classes
    Logging
  55. def logName: String

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

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

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

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

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

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

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

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

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    Definition Classes
    AnyRef
  64. def onTrained(model: LemmatizerModel, spark: SparkSession): Unit

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    Definition Classes
    AnnotatorApproach
  65. val outputAnnotatorType: AnnotatorType

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    Output annotator type : TOKEN

    Output annotator type : TOKEN

    Definition Classes
    LemmatizerHasOutputAnnotatorType
  66. final val outputCol: Param[String]

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

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    Definition Classes
    Params
  68. def save(path: String): Unit

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    Definition Classes
    MLWritable
    Annotations
    @Since( "1.6.0" ) @throws( ... )
  69. final def set(paramPair: ParamPair[_]): Lemmatizer.this.type

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

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

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    Definition Classes
    Params
  72. final def setDefault(paramPairs: ParamPair[_]*): Lemmatizer.this.type

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

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    Attributes
    protected
    Definition Classes
    Params
  74. def setDictionary(path: String, keyDelimiter: String, valueDelimiter: String, readAs: Format = ReadAs.TEXT, options: Map[String, String] = Map("format" -> "text")): Lemmatizer.this.type

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    setDictionary(path, keyDelimiter, valueDelimiter, readAs, options): Path and options to lemma dictionary, in lemma vs possible words format.

    setDictionary(path, keyDelimiter, valueDelimiter, readAs, options): Path and options to lemma dictionary, in lemma vs possible words format. readAs can be LINE_BY_LINE or SPARK_DATASET. options contain option passed to spark reader if readAs is SPARK_DATASET. lemmatizer external dictionary

  75. def setDictionary(value: ExternalResource): Lemmatizer.this.type

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    setDictionary(path, keyDelimiter, valueDelimiter, readAs, options): Path and options to lemma dictionary, in lemma vs possible words format.

    setDictionary(path, keyDelimiter, valueDelimiter, readAs, options): Path and options to lemma dictionary, in lemma vs possible words format. readAs can be LINE_BY_LINE or SPARK_DATASET. options contain option passed to spark reader if readAs is SPARK_DATASET. lemmatizer external dictionary

  76. final def setInputCols(value: String*): Lemmatizer.this.type

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    Definition Classes
    HasInputAnnotationCols
  77. final def setInputCols(value: Array[String]): Lemmatizer.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
  78. def setLazyAnnotator(value: Boolean): Lemmatizer.this.type

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    Definition Classes
    CanBeLazy
  79. final def setOutputCol(value: String): Lemmatizer.this.type

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    Overrides annotation column name when transforming

    Overrides annotation column name when transforming

    Definition Classes
    HasOutputAnnotationCol
  80. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  81. def toString(): String

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

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    Definition Classes
    LemmatizerAnnotatorApproach
  83. 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
  84. def transformSchema(schema: StructType, logging: Boolean): StructType

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

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    required internal uid provided by constructor

    required internal uid provided by constructor

    Definition Classes
    Lemmatizer → Identifiable
  86. 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
  87. final def wait(): Unit

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

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

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

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    Definition Classes
    DefaultParamsWritable → MLWritable

Inherited from CanBeLazy

Inherited from DefaultParamsWritable

Inherited from MLWritable

Inherited from HasOutputAnnotatorType

Inherited from HasOutputAnnotationCol

Inherited from HasInputAnnotationCols

Inherited from Estimator[LemmatizerModel]

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