GitHub user feynmanliang opened a pull request:
https://github.com/apache/spark/pull/7818
Spark 8999 non temporal
@mengxr Extends PrefixSpan to non-temporal itemsets.
* Internal API uses List[Set[Int]] which is likely not efficient; will
need to refactor during QA
Closes #7646
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/feynmanliang/spark SPARK-8999-nonTemporal
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7818.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #7818
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commit bdc6bca530900861c87152f8a922ed88dcfd36b8
Author: Feynman Liang <[email protected]>
Date: 2015-07-30T21:08:14Z
Add -1 delimiter
commit 937deb5a7425ccee31b0a8ca0475a629a25c7333
Author: Feynman Liang <[email protected]>
Date: 2015-07-30T23:00:43Z
Working on temporal sequences
commit be1d193c3645fd7e4271002d8d2ead0c7ccaba5d
Author: Feynman Liang <[email protected]>
Date: 2015-07-31T00:02:28Z
Working for items, not itemsets
commit ea9cb64510aa64c5de44a4bc9a04aef1eae83c6e
Author: Feynman Liang <[email protected]>
Date: 2015-07-31T00:13:12Z
Add delimiter to results
commit 0ec68f72cefe9ab8946518df197a3e140908958b
Author: Feynman Liang <[email protected]>
Date: 2015-07-31T01:17:44Z
Basic itemset functionality, failing test
commit 8b74bbf5bd469ae63c59566e8385b05cebf3e5ab
Author: Feynman Liang <[email protected]>
Date: 2015-07-31T06:46:06Z
Fixed itemSet sequences
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