Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/5748#discussion_r31455505
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/feature/Word2Vec.scala ---
@@ -426,38 +422,40 @@ class Word2Vec extends Serializable with Logging {
/**
* :: Experimental ::
* Word2Vec model
+ *
+ * @param wordIndex: Maps each word to an index, which can retrieve the
corresponding
+ * vector from wordVectors (see below).
+ * @param wordVectors: Array of length numWords * vectorSize, vector
corresponding
+ * to the word mapped with index i can be retrieved by
the slice
+ * (i * vectorSize, i * vectorSize + vectorSize)
*/
@Experimental
class Word2VecModel private[mllib] (
- model: Map[String, Array[Float]]) extends Serializable with Saveable {
-
- // wordList: Ordered list of words obtained from model.
- private val wordList: Array[String] = model.keys.toArray
+ wordIndex: Map[String, Int],
--- End diff --
Make this and wordVectors private vals
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