Hello,
Thanks Andra for the gaussian sequence generation. It is a little
tricky, i just leave this part for future work.
I meet another problem in AffinityPropogation algorithm. I write a few
test code for it.
https://github.com/joey001/flink/blob/ap_add/flink-staging/flink-gelly/src/test/java/org/apache/flink/graph/test/example/AffinityPropogationITCase.java
<https://github.com/joey001/flink/blob/ap_add/flink-staging/flink-gelly/src/test/java/org/apache/flink/graph/test/example/AffinityPropogationITCase.java>It
passes the COLLECTION while failed when execution mode = CLUSTER.
I not very clear about the differences and the reason.
Does anyone give me a clue?
Thanks,
Best Regards.
ZHOU Yi
On 08/05/2015 23:17, Andra Lungu wrote:
Hi Yi,
To my knowledge, there is no simple way to generate this kind of
DataSet(i.e. there is no env.generateGaussianSequence()).
However, if you look in flink-perf, Till used something like this there:
https://github.com/project-flink/flink-perf/blob/master/flink-jobs/src/main/scala/com/github/projectflink/als/ALSDataGeneration.scala
Maybe he can give you some tips.
You can also call random.nextGaussian() in Java.
http://docs.oracle.com/javase/7/docs/api/java/util/Random.html#nextGaussian%28%29
Not sure if this helps, but there is a paper on generating this kind of
distribution.
http://ifisc.uib-csic.es/raul/publications/P/P44_tc93.pdf
Best of luck,
Andra
On Fri, May 8, 2015 at 9:45 PM, Yi ZHOU <zhouyi0...@hotmail.com> wrote:
Hello, all
when I tested AP algorithm, I had a little question :
how to generate a DataSet in gaussian distribution? Is there a
implemented funtion?
Does any one has a solution? Thank you,
ZHOU Yi
