[ https://issues.apache.org/jira/browse/SPARK-20673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
zhengruifeng closed SPARK-20673. -------------------------------- Resolution: Duplicate > LDA `optimizer` do not really support case insensitive > ------------------------------------------------------- > > Key: SPARK-20673 > URL: https://issues.apache.org/jira/browse/SPARK-20673 > Project: Spark > Issue Type: Bug > Components: ML > Affects Versions: 2.2.0 > Reporter: zhengruifeng > Priority: Minor > > The declaration of {{optimizer}} in {{LDA}} suggest that it should be case > insensitive: > {code} > final val optimizer = new Param[String](this, "optimizer", "Optimizer or > inference" + > " algorithm used to estimate the LDA model. Supported: " + > supportedOptimizers.mkString(", "), > (o: String) => > > ParamValidators.inArray(supportedOptimizers).apply(o.toLowerCase(Locale.ROOT))) > {code} > However, it do not support uppercase: > {code} > scala> val lda = new LDA().setOptimizer("Em") > lda: org.apache.spark.ml.clustering.LDA = lda_dde23ccc5792 > scala> lda.getOptimizer > res18: String = Em > scala> lda.fit(dataset) > scala.MatchError: Em (of class java.lang.String) > at > org.apache.spark.ml.clustering.LDAParams$class.getOldOptimizer(LDA.scala:351) > at org.apache.spark.ml.clustering.LDA.getOldOptimizer(LDA.scala:809) > at org.apache.spark.ml.clustering.LDA.fit(LDA.scala:898) > ... 54 elided > {code} -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org