Valid.scala

...

log.info("Reload model ... ")
val confFromJson = MultiLayerConfiguration.fromJson(FileUtils.readFileToString(new File(conf_json)))
val dis = new DataInputStream(new FileInputStream(coefficient_bin))
val reloadParams = Nd4j.read(dis)
dis.close()

val model = new MultiLayerNetwork(confFromJson)
model.init()
model.setParams(reloadParams)

model.setListeners(Seq[IterationListener](new ScoreIterationListener(listenerFreq)).asJava)
while( iter.hasNext() ){
                val eachbatch: DataSet = iter.next()
                
                model.fit(eachbatch)
}

...