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Ivan Daschinskiy commented on IGNITE-13696: ------------------------------------------- I'm sorry, but I suppose this is just a [MAE|https://en.wikipedia.org/wiki/Mean_squared_error] or smth like this. > [ML] Tutorial examples fails > ---------------------------- > > Key: IGNITE-13696 > URL: https://issues.apache.org/jira/browse/IGNITE-13696 > Project: Ignite > Issue Type: Bug > Components: examples, ml > Affects Versions: 2.9 > Reporter: Stepan Pilschikov > Priority: Major > > Trying to run Tutorial examples from repository or from binary release and > meet error results. Looks like a bug > org.apache.ignite.examples.ml.tutorial.Step_1_Read_and_Learn (all other > tutorials have same issue) > {code} > >>> Trained model: if (x0 > 2.5000) then if (x1 > 2.5000) then if (x2 > > >>> 0.5000) then if (x1 > 4.5000) then return 0.0000 else if (x2 > 1.5000) > >>> then return 0.0000 else return 0.0000 else return 0.0000 else if (x2 > > >>> 0.5000) then if (x2 > 3.5000) then if (x1 > 0.5000) then return 0.0000 > >>> else return 0.0000 else if (x2 > 1.5000) then return 0.0000 else return > >>> 1.0000 else if (x1 > 0.5000) then if (x1 > 1.5000) then return 0.0000 > >>> else return 0.0000 else return 0.0000 else if (x2 > 0.5000) then if (x1 > > >>> 0.5000) then if (x1 > 1.5000) then if (x1 > 2.5000) then return 1.0000 > >>> else return 1.0000 else if (x2 > 3.5000) then return 0.0000 else return > >>> 1.0000 else if (x2 > 1.5000) then if (x0 > 1.5000) then return 1.0000 > >>> else return 1.0000 else if (x0 > 1.5000) then return 1.0000 else return > >>> 1.0000 else if (x0 > 1.5000) then if (x1 > 2.5000) then return 1.0000 > >>> else if (x1 > 1.5000) then return 0.0000 else return 0.0000 else if (x1 > > >>> 0.5000) then if (x1 > 1.5000) then return 1.0000 else return 1.0000 else > >>> return 1.0000 > >>> Accuracy 0.7117737003058104 > >>> Test Error 0.28822629969418956 > >>> Tutorial step 1 (read and learn) example completed. > {code} -- This message was sent by Atlassian Jira (v8.3.4#803005)