Package pyspark :: Package mllib :: Module recommendation :: Class ALS

Class ALS

object --+
         |
        ALS

Alternating Least Squares matrix factorization.

SPARK-3990: In Spark 1.1.x, we use Kryo serialization by default in PySpark. ALS does not work under this default setting. You can switch back to the default Java serialization by setting:

spark.serializer=org.apache.spark.serializer.JavaSerializer

Please go to http://spark.apache.org/docs/latest/configuration.html for instructions on how to configure Spark.

Instance Methods
Inherited from `object`: `__delattr__`, `__format__`, `__getattribute__`, `__hash__`, `__init__`, `__new__`, `__reduce__`, `__reduce_ex__`, `__repr__`, `__setattr__`, `__sizeof__`, `__str__`, `__subclasshook__`

Class Methods

train(cls, ratings, rank, iterations=5, lambda_=0.01, blocks=-1)

source code

trainImplicit(cls, ratings, rank, iterations=5, lambda_=0.01, blocks=-1, alpha=0.01)

source code

Properties
Inherited from `object`: `__class__`