Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/3997#discussion_r22815763
--- Diff: mllib/src/main/scala/org/apache/spark/mllib/linalg/Vectors.scala
---
@@ -449,6 +449,16 @@ class SparseVector(
override def toString: String =
"(%s,%s,%s)".format(size, indices.mkString("[", ",", "]"),
values.mkString("[", ",", "]"))
--- End diff --
+1 on @srowen 's suggestion. We can design a hashing scheme based on the
size and nonzero entries (with their indices). But I think we could do that in
a separate PR. Does it sound good?
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