Create ML: Testing Error expected directory at URL

Question

Hi, I'm new to Create ML. I was trying to create a simple sentiment analysis model. My input file is cleaned JSON data from Apple reviews with two fields, "label" (pos/neg) and "text" (the content with sentiment). Training runs successfully. However, when I try to perform a test with similar data with the same fields in either JSON or CSV format, I continue to get the following error.

Testing Error: Expected directory at URL at "filename.json" I've tried using different data sets but always receive the same error.

Does anyone have any idea what I'm doing wrong?

Create ML

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Posted by

jtg01000111

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Answer 1

I don't know what the error message exactly means, however i found a solution by accident. I think createML expects us to give a directory (training, validation or testing) that contains a subdirectory for each class which has the textual data in it. So, for a binary sentiment analysis problem, "train" directory should have 2 sub directories called "neg" and "pos". "neg" directory has files of examples that have negative sentiment. Likewise, "pos" directory has files of examples that have positive sentiment.

Hope this helps.

Posted by

kbulutozler

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Answer 2

Is there an answer to this problem? What directory exactly is missing? kbulutozler's answer doesn't work for me for some reason. I am using an CSV file to train a model, which worked perfectly in the past.

Posted by

yoKurt

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Answer 3

I got the same error message when attempting to use the same .csv format as for training. After a little trial and error, what eventually worked was supplying the data in the following format, as e.g. used for Vision tasks in CreateML:

test_data/
├─ label_0/
│  ├─ 0.txt
│  ├─ 1.txt
│  ├─ ...
├─ label_1/
│  ├─ 0.txt
│  ├─ 1.txt
│  ├─ 2.txt
│  ├─ ...

Here, the files 0.txt, ... containing only the text strings. Hope this helps you!

Posted by

mueller-stephan

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Create ML: Testing Error expected directory at URL

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