ml.shifu.guagua.example.kmeans

Class KMeansMaster

java.lang.Object

ml.shifu.guagua.example.kmeans.KMeansMaster

All Implemented Interfaces:

ml.shifu.guagua.master.MasterComputable<KMeansMasterParams,KMeansWorkerParams>

public class KMeansMaster
extends Object
implements ml.shifu.guagua.master.MasterComputable<KMeansMasterParams,KMeansWorkerParams>

KMeansMaster computes new k center points for next iteration.

By accumulating all the k center points sum values from all workers, then average to get new k center points.

Constructor Summary

Constructors

Constructor and Description
KMeansMaster()

Method Summary

Modifier and Type	Method and Description
KMeansMasterParams	compute(ml.shifu.guagua.master.MasterContext<KMeansMasterParams,KMeansWorkerParams> context) Master computation by accumulating all the k center points sum values from all workers, then average to get new k center points.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KMeansMaster

public KMeansMaster()

Method Detail

compute

public KMeansMasterParams compute(ml.shifu.guagua.master.MasterContext<KMeansMasterParams,KMeansWorkerParams> context)

Master computation by accumulating all the k center points sum values from all workers, then average to get new k center points.

Specified by:

compute in interface ml.shifu.guagua.master.MasterComputable<KMeansMasterParams,KMeansWorkerParams>

Throws:

NullPointerException - if worker result or worker results is null.