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NegativeArraySizeException in the http://www.myexperiment.org/workflows/2684.htm
Contributor II
Hello,
I'm having an" Item Attribute k-NN " workflow that is similar with the http://www.myexperiment.org/workflows/2684.html workflow. I tried it with the sample data from the myexperiment workflow and it worked. However, with my data I get an NegativeArraySizeException error.
I do not understand, the user id and the item id are of the same type as in the example..what could it be wrong with the data?
Alina
I'm having an" Item Attribute k-NN " workflow that is similar with the http://www.myexperiment.org/workflows/2684.html workflow. I tried it with the sample data from the myexperiment workflow and it worked. However, with my data I get an NegativeArraySizeException error.
I do not understand, the user id and the item id are of the same type as in the example..what could it be wrong with the data?
Thank you!
Exception: java.lang.NegativeArraySizeException
Message: null
Stack trace:
com.rapidminer.data.Matrix_f.<init>(Matrix_f.java:69)
com.rapidminer.data.CorrelationMatrix.<init>(CorrelationMatrix.java:52)
com.rapidminer.data.BinaryDataCorrelationMatrix.<init>(BinaryDataCorrelationMatrix.java:17)
com.rapidminer.data.BinaryCosine.<init>(BinaryCosine.java:24)
com.rapidminer.data.BinaryCosine.Create(BinaryCosine.java:104)
com.rapidminer.ItemRecommendation.ItemAttributeKnn.Train(ItemAttributeKnn.java:50)
com.rapidminer.ItemRecommendation.ItemAttributeKnnO.doWork(ItemAttributeKnnO.java:162)
com.rapidminer.operator.Operator.execute(Operator.java:867)
com.rapidminer.operator.execution.SimpleUnitExecutor.execute(SimpleUnitExecutor.java:51)
com.rapidminer.operator.ExecutionUnit.execute(ExecutionUnit.java:711)
com.rapidminer.operator.OperatorChain.doWork(OperatorChain.java:375)
com.rapidminer.operator.Operator.execute(Operator.java:867)
com.rapidminer.Process.run(Process.java:949)
com.rapidminer.Process.run(Process.java:873)
com.rapidminer.Process.run(Process.java:832)
com.rapidminer.Process.run(Process.java:827)
com.rapidminer.Process.run(Process.java:817)
com.rapidminer.gui.ProcessThread.run(ProcessThread.java:63)
Alina
0
