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Serious doubts on Categorical embedding


Categorical Variable Reduction using NNChoosing an embedding feature dimensionEmbedding layers for categorical featuresKeras: Softmax output into embedding layerSequence EmbeddingWhat does the embedding mean in the FaceNet?Confusion about Entity Embeddings of Categorical Variables - Working Example!Face embedding of unseen imagesRegularization in Embedding models?Make embedding more Gaussian-like













1












$begingroup$


I am still having many doubts about the working of categorical embedding.

In particular I have 2 points not clear:

1. Are 1-Hot variables converted to a lower dim vector?

2. What target are neural embedding trained on? Lots of explanations I have seen don't show any target, and I wonder how the back-prop is done.

3. It is not clear at all how the keras functional API works to build an embedding.
Anyone is so helpful to explain step by step how to build one showing matrices dimension?

Thanks in advance.










share|improve this question









$endgroup$
















    1












    $begingroup$


    I am still having many doubts about the working of categorical embedding.

    In particular I have 2 points not clear:

    1. Are 1-Hot variables converted to a lower dim vector?

    2. What target are neural embedding trained on? Lots of explanations I have seen don't show any target, and I wonder how the back-prop is done.

    3. It is not clear at all how the keras functional API works to build an embedding.
    Anyone is so helpful to explain step by step how to build one showing matrices dimension?

    Thanks in advance.










    share|improve this question









    $endgroup$














      1












      1








      1


      1



      $begingroup$


      I am still having many doubts about the working of categorical embedding.

      In particular I have 2 points not clear:

      1. Are 1-Hot variables converted to a lower dim vector?

      2. What target are neural embedding trained on? Lots of explanations I have seen don't show any target, and I wonder how the back-prop is done.

      3. It is not clear at all how the keras functional API works to build an embedding.
      Anyone is so helpful to explain step by step how to build one showing matrices dimension?

      Thanks in advance.










      share|improve this question









      $endgroup$




      I am still having many doubts about the working of categorical embedding.

      In particular I have 2 points not clear:

      1. Are 1-Hot variables converted to a lower dim vector?

      2. What target are neural embedding trained on? Lots of explanations I have seen don't show any target, and I wonder how the back-prop is done.

      3. It is not clear at all how the keras functional API works to build an embedding.
      Anyone is so helpful to explain step by step how to build one showing matrices dimension?

      Thanks in advance.







      neural-network keras embeddings neural






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Apr 9 at 7:15









      3nomis3nomis

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