From d28bf4182758f08862d5838c918756801a9d7327 Mon Sep 17 00:00:00 2001
From: Reza Zadeh <rizlar@gmail.com>
Date: Fri, 17 Jan 2014 13:39:40 -0800
Subject: [PATCH] changes from PR
---
docs/mllib-guide.md | 5 +++--
.../org/apache/spark/examples/{ => mllib}/SparkSVD.scala | 2 +-
2 files changed, 4 insertions(+), 3 deletions(-)
rename examples/src/main/scala/org/apache/spark/examples/{ => mllib}/SparkSVD.scala (98%)
diff --git a/docs/mllib-guide.md b/docs/mllib-guide.md
index a140ecb618..26350ce106 100644
--- a/docs/mllib-guide.md
+++ b/docs/mllib-guide.md
@@ -445,11 +445,12 @@ Given an *m x n* matrix *A*, we can compute matrices *U, S, V* such that
*A = U * S * V^T*
-There is no restriction on m, but we require n^2 doubles to fit in memory.
+There is no restriction on m, but we require n^2 doubles to
+fit in memory locally on one machine.
Further, n should be less than m.
The decomposition is computed by first computing *A^TA = V S^2 V^T*,
-computing svd locally on that (since n x n is small),
+computing SVD locally on that (since n x n is small),
from which we recover S and V.
Then we compute U via easy matrix multiplication
as *U = A * V * S^-1*
diff --git a/examples/src/main/scala/org/apache/spark/examples/SparkSVD.scala b/examples/src/main/scala/org/apache/spark/examples/mllib/SparkSVD.scala
similarity index 98%
rename from examples/src/main/scala/org/apache/spark/examples/SparkSVD.scala
rename to examples/src/main/scala/org/apache/spark/examples/mllib/SparkSVD.scala
index ce7c1c48b5..50e5f5bd87 100644
--- a/examples/src/main/scala/org/apache/spark/examples/SparkSVD.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/mllib/SparkSVD.scala
@@ -15,7 +15,7 @@
* limitations under the License.
*/
-package org.apache.spark.examples
+package org.apache.spark.examples.mllib
import org.apache.spark.SparkContext
import org.apache.spark.mllib.linalg.SVD
--
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