MapFeaturizer

Instance Constructors

new MapFeaturizer(fieldIdx: Int, columnName: String, namespaceHash: Int, mask: Int, valueFeaturizer: (T) ⇒ Double)

fieldIdx
input field index.
columnName
used as feature name prefix.
namespaceHash
pre-hashed namespace.
mask
bit mask applied to final hash.
valueFeaturizer
featurizer for value type.

Value Members

final def !=(arg0: Any): Boolean

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

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
val columnName: String

used as feature name prefix.
used as feature name prefix.

Definition Classes
MapFeaturizer → Featurizer
final def eq(arg0: AnyRef): Boolean

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

Definition Classes
AnyRef → Any
def featurize(row: Row, indices: ArrayBuilder[Int], values: ArrayBuilder[Double]): Unit

Featurize a single row.
Featurize a single row.
row
input row.
indices
output indices.
values
output values.

Definition Classes
MapFeaturizer → Featurizer
Note
this interface isn't very Scala idiomatic, but it avoids lots of allocation. Also due to SparseVector limitations we don't support 64bit indices (e.g. indices are signed 32bit ints)
val fieldIdx: Int

input field index.
input field index.

Definition Classes
MapFeaturizer → Featurizer
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
lazy val hasher: VowpalWabbitMurmurWithPrefix

Initialize hasher that already pre-hashes the column prefix.
Initialize hasher that already pre-hashes the column prefix.

Attributes
protected
Definition Classes
Featurizer
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
val mask: Int

bit mask applied to final hash.
val namespaceHash: Int

pre-hashed namespace.
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
val valueFeaturizer: (T) ⇒ Double

featurizer for value type.
final def wait(): Unit

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

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

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package featurizer

class MapFeaturizer[T] extends Featurizer

Instance Constructors

new MapFeaturizer(fieldIdx: Int, columnName: String, namespaceHash: Int, mask: Int, valueFeaturizer: (T) ⇒ Double)

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

val columnName: String

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def featurize(row: Row, indices: ArrayBuilder[Int], values: ArrayBuilder[Double]): Unit

val fieldIdx: Int

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

lazy val hasher: VowpalWabbitMurmurWithPrefix

final def isInstanceOf[T0]: Boolean

val mask: Int

val namespaceHash: Int

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

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

def toString(): String

val valueFeaturizer: (T) ⇒ Double

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from Featurizer

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped