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Data Science : Recent Questions and Answers (Page 261)

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Compare cross validation and test set results

I am having a hard time understanding the results of a cross validation test and a test run on a test set. First I made the following pipeline: pipe=Pipeline([('clf',DecisionTreeClassifier(random_state=0))]) Then...

Asked on 01/01/2021 by Rayyan Abid Ali

1 answer

how to use the hierarchical coefficients?

I am trying to understand whether I can use hierarchical coefficients obtained on different methods. I got agglomerative coefficients for methods like: "single", "complete", "ward", "average". I also got a...

Asked on 01/01/2021

0 answer

Cp plot in decision tree only showing upward trend

In Cp plot for decision tree, we expect the error to drop down with size of the tree (or form an elbow). This helps to select right Cp value. But...

Asked on 01/01/2021

0 answer

Valid approach? LogSoftmax during training, Softmax during inference

I am training a classifier assigning one of four possible classes to each frame in a preprocessed audio stream using pytorch. I am using cross-entropy loss as the loss function...

Asked on 01/01/2021 by Scipio

0 answer

What is the meaning of an empty SHAP graph in Explainable AI?

Using Python, I created a neural network to perform predictions on a binary class dataset (e.g. will a passenger survive the Titanic?). I am using the SHAP package to explain...

Asked on 01/01/2021 by caspar

1 answer

Machine learning algorithms and Computer Vision technologies for detecting 52 playing cards deck

https://en.wikipedia.org/wiki/Standard_52-card_deck https://en.wikipedia.org/wiki/Playing_card https://www.google.com/search?q=playing+cards&client=ms-android-lava&prmd=sinv&sxsrf=ALeKk02cmtbG25vrqk59BybOJWHF7PG3Aw:1600237953234&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjcuIj2hu3rAhXtzjgGHZegCj0Q_AUoAnoECAwQAg https://www.google.com/search?q=playing+cards&client=ms-android-lava&prmd=sinv&sxsrf=ALeKk02cmtbG25vrqk59BybOJWHF7PG3Aw:1600237953234&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjcuIj2hu3rAhXtzjgGHZegCj0Q_AUoAnoECAwQAg https://www.instagram.com/p/CFMBjc6J7PN/?utm_source=ig_web_button_share_sheet Are there Machine learning algorithms & Computer vision technologies which...

Asked on 01/01/2021

1 answer

Google Trax's GRU layer

I am learning about Trax for the implementation of GRU and LSTMs. Their documentation says that a GRU layer in Trax can only accept a number of hidden units equal...

Asked on 01/01/2021 by Bharathi A

0 answer

Distance to the Center of Vocabulary of Word Embeddings

Suppose I:Generate a set of word embeddings (using word2vec or similar) based on a large but specific corpusCompute the centroid of all the words in the setFind the word(s) with...

Asked on 01/01/2021 by user2969402

0 answer

Spacy v2.0.1 custom NER: How to improve training of existing model

I implemented custom NER with bellow trained data first time and it gives me good prediction with Name and PrdName. I mentioned code bellow.if __name__ == '__main__':TRAIN_DATA = [...

Asked on 12/31/2020

1 answer

CASE WHEN SQL Type Statement in pandas

I'm trying to create a new column called Class which is a calculated column.Basically when the Math class is NA then the class will be the CS class, otherwise...

Asked on 12/31/2020 by Eisen

1 answer

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