Package org.apache.spark.ml.fpm

Interface PrefixSpanParams

All Superinterfaces:

Identifiable, Params, Serializable

All Known Implementing Classes:

PrefixSpan

public interface PrefixSpanParams
extends Params

Method Summary

Modifier and Type	Method	Description
long	getMaxLocalProjDBSize()
int	getMaxPatternLength()
double	getMinSupport()
String	getSequenceCol()
LongParam	maxLocalProjDBSize()	Param for the maximum number of items (including delimiters used in the internal storage format) allowed in a projected database before local processing (default: 32000000).
IntParam	maxPatternLength()	Param for the maximal pattern length (default: 10).
DoubleParam	minSupport()	Param for the minimal support level (default: 0.1).
Param<String>	sequenceCol()	Param for the name of the sequence column in dataset (default "sequence"), rows with nulls in this column are ignored.

Methods inherited from interface org.apache.spark.ml.util.Identifiable

toString, uid

Methods inherited from interface org.apache.spark.ml.param.Params

clear, copy, copyValues, defaultCopy, defaultParamMap, explainParam, explainParams, extractParamMap, extractParamMap, get, getDefault, getOrDefault, getParam, hasDefault, hasParam, isDefined, isSet, onParamChange, paramMap, params, set, set, set, setDefault, setDefault, shouldOwn

Method Details

getMaxLocalProjDBSize

long getMaxLocalProjDBSize()

getMaxPatternLength

int getMaxPatternLength()

getMinSupport

double getMinSupport()

getSequenceCol

String getSequenceCol()

maxLocalProjDBSize

LongParam maxLocalProjDBSize()

Param for the maximum number of items (including delimiters used in the internal storage format) allowed in a projected database before local processing (default: 32000000). If a projected database exceeds this size, another iteration of distributed prefix growth is run.

Returns:

(undocumented)

maxPatternLength

IntParam maxPatternLength()

Param for the maximal pattern length (default: 10).

Returns:

(undocumented)

minSupport

DoubleParam minSupport()

Param for the minimal support level (default: 0.1). Sequential patterns that appear more than (minSupport * size-of-the-dataset) times are identified as frequent sequential patterns.

Returns:

(undocumented)

sequenceCol

Param<String> sequenceCol()

Param for the name of the sequence column in dataset (default "sequence"), rows with nulls in this column are ignored.

Returns:

(undocumented)