Error while training image model

[Macarena Raffo Palma]

Hello,

First of all, thank you for this wonderful tool. 

Im having a problem: we were creating projects in Scratch with image recognition machine learning models. The models are created in the student accounts but when they want to reload the project it says: "The selected project file failed to load." The help says that  the error could be because the models are not created in the accounts but I checked they were created while logged in. What could be happening?  Thank you very much!!

[Macarena Raffo Palma]

I attach the files sb3 so you can check them (the models are still created in the students accounts)
Files: https://drive.google.com/drive/folders/1mXJ3_VQvn998eF5mBnWUkuQm1lUrZTm2?usp=sharing

[Dale Lane]

• Clase 2 - Pascuas
  
  • This Scratch file has references to three ML projects
    • Tarea 2 - Figuras - an image project   see [1] below
      
    • Tarea Nro1 - Turismo en BA - a text project  see [2] below
      
    • a non-existent project   see [3] below

• Atracciones Turísticas en BA
  
  • This Scratch file has references to two projects
    • a non-existent project   see [3] below
    • Atracciones Turísticas_BA - a text project   see [2] below

•  Albumes de figuritas (final)
  • This Scratch file has references to one ML project
    • Tarea Clase 2 - an image project   see [1] below

[1] 

Machine learning models for image projects are trained and stored in the web browser. 

That means you need to use the same web browser on the same computer to run the Scratch project that you used to train the ML model, otherwise the Scratch project will not be able to find the model.

[2]

Machine learning models for text projects are trained and stored in the cloud using IBM Watson. 

To ensure that this remains available for all students, models automatically expire after a time. When I checked just now, the text ML models referred to in the Scratch files had expired. For more details, see the "Why are machine learning models automatically deleted?" FAQ at https://machinelearningforkids.co.uk/help 

Note that this doesn't stop you training the model again to get the Scratch file working again - either from the Learn & Test page on the website, or by using the "Train new machine learning model" block in Scratch

[3]
This ML project doesn't exist. This is because the project was deleted from the Machine Learning for Kids website after the Scratch file was created. 

[Macarena Raffo Palma]

Hello Dale!

Thanks for the help!

[Macarena Raffo Palma]

Hi Dale, I'm sorry for bothering you again. 

You explained to me that to run a Scratch image project I need to use the same web browser on the same computer that I used to train the ML model. 

Today I try to open a new image project of one of my students. It was created in another web brownse and in another computer and I could see it without problems. In the case of the project Albumes de figuritas (final) see [1] I cannot load it and the conditions are the same. I need to understand why this happens so I can explain to my students why I can correct some and not others.

Thanks for the help!

[Macarena Raffo Palma]

I attach the file sb3 so you can check it (the models are still created in the students accounts)
https://drive.google.com/file/d/1bfM_5cn0-w7EtWQXUjJpbNoFL5WiyP_9/view?usp=sharing

[Dale Lane]

> You explained to me that to run a Scratch image 

> project I need to use the same web browser on 

> the same computer that I used to train the ML 

> model. 

To be clear, you can run the project on another computer or browser, you just won't be able to get answers from the machine learning model, because the ML model won't exist.

> I cannot load it and the conditions are the same

Please can you explain what that means.

What does "cannot load it" mean?

Please describe in detail the steps that you took and the outcome of them.

[Dale Lane]

> I attach the file sb3 so you can check it (the models are still 

> created in the students accounts)

That project looks fine to me. 

naturally I can't get any predictions from the machine learning model, so if I try to use the model, I see the "It looks like you don't have a machine learning model." warning

but otherwise it's fine

[Macarena Raffo Palma]

Thank you, Dale.

I share you two another projects that my studients created and Scratch advise me that " The selected project file failed to load." In this cases I dont know why: https://drive.google.com/drive/folders/1PAyWJjuoFCOMs5j5kFlgKahfUKdcgbxj?usp=sharing

[Dale Lane]

• Ejemplo1.sb3 contains references to three ML projects
  
  • Tarea 2 - Figuras  - an image project   see [1] before
  • Tarea Nro1 - Turismo en BA - a text project  see [2] before
    
  • a non-existent project   see [3] before
• Ejemplo2.sb3 contains references to two ML projects
  
  • Clase 2 - Tarea - an image project  see [1] before
  • a non-existent project   see [3] before

In both cases, it's the reference to the non-existent project that prevents the file from being opened - because it contains references to things that don't exist. 

[Dale Lane]

https://youtu.be/PsEIopddgoc 

[Macarena Raffo Palma]

I understood now. Sorry for so many questions. Thank you very much Dale!