Hi Everybody, I reviewed the code and searched for a copy of the code and I was not able to find it. Nevertheless, the piece of code that we can say that is "copied" is the graph input[1] that we use in the test of Pagerank[2], however, the "copied" part is [3] and [4]. Is it that copy? because we take an image and we convert it to graph representation to process.
we can modify the data. We used it because it is just a well known example. Best regards, Bertty [1] https://en.wikipedia.org/wiki/PageRank#/media/File:PageRanks-Example.svg [2] https://github.com/apache/incubator-wayang/blob/main/wayang-tests-integration/code/test/java/org/apache/wayang/tests/WayangPlans.java#L573-L704 [3] https://github.com/apache/incubator-wayang/blob/main/wayang-tests-integration/code/test/java/org/apache/wayang/tests/WayangPlans.java#L576-L589 [4] https://github.com/apache/incubator-wayang/blob/main/wayang-tests-integration/code/test/java/org/apache/wayang/tests/WayangPlans.java#L706-L719 On Tue, Oct 26, 2021 at 9:50 AM Alexander Alten <[email protected]> wrote: > Heya Justin, > > Ya, we discussed this in our slack - but we have some inconsistency across > the projects. PageRank is used in the exact same matter as we us in > numerous projects, as example Spark, Flink. This causes confusion - I > argued the same as you: > "We used a piece of code which hasn't a proper license. As long as we use > code from compatible projects and licenses everything is fine. We only have > to mention this. But Justin said we copied from Wikipedia, which is a > license issue” > > From Wikipedia [1] > "Most of Wikipedia's text and many of its images are co-licensed under the > Creative Commons Attribution-ShareAlike 3.0 Unported License (CC BY-SA) and > the GNU Free Documentation License (GFDL) (unversioned, with no invariant > sections, front-cover texts, or back-cover texts)." > > I reached to twitter - even they use PageRank in their own code [2]. > > What’s now the best solution to solve this? Also in view of the TLPs > Spark, Flink ... > > Cheers, > —Alex > > 1: https://en.wikipedia.org/wiki/Wikipedia:Copyrights > 2: > https://github.com/twitter/GraphJet/blob/master/graphjet-core/src/main/java/com/twitter/graphjet/algorithms/PageRank.java > > > On 26. Oct 2021, at 09:39, Justin Mclean <[email protected]> wrote: > > > > Hi, > > > > It's not the algorithm itself but what was copied from the wikipedia > page. Note this comment in the code [1]: > > "Get some graph data. Use the example from Wikipedia: > https://en.wikipedia.org/wiki/PageRank"; > > > > Ask yourself this. What license is that example under? Is that > compatible with the Apache license? > > > > Kind Regards, > > Justin > > > > 1. > ./wayang-tests-integration/code/test/java/org/apache/wayang/tests/WayangPlans.java > >
