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Data Science : Recent Questions and Answers (Page 206)

Find answers to your questions about Data Science or help others by answering their Data Science questions.

Help why to apply PCA here

Lets say we have a dataset of 9 dimensional points and I want to apply k-means algorithm.I was studying an example where they apply PCA before fitting the data...

Asked on 02/25/2021

0 answer

A good way to use facial landmark as model input

We are planning to use facial landmark information as input to the model. Since there are more than 60 points, it doesn't look good to use 60 channels as inputs...

Asked on 02/25/2021 by Hyelin

0 answer

Holdout vs K-fold

I am working with 15k image dataset for binary classification. This is a patient-based medical image dataset. Is it enough to use a randomized holdout strategy (train, validation, and test)?...

Asked on 02/25/2021 by Fazla Rabbi Mashrur

1 answer

Is my feature normalization correct?

I have got a X = mx3 array of input data and y = mx1 array of desired outcome data. Now I want to normalize the features accordingly: X[:, 1]...

Asked on 02/25/2021 by mathematical inutition

0 answer

Create a model that can extract only specific data out of receipts or invoices?

I'm trying to build a model that is capable of identifying only some of the information on receipts and invoices. All the documents having different structure in image format. Sample...

Asked on 02/25/2021

0 answer

Examples of using GANs to sort numbers?

Does anyone know of any publicly available GAN implementations to sort numbers with? As in, the input to the generator is an unordered sequence of numbers, and the goal of...

Asked on 02/25/2021 by comp_sci5050

0 answer

What is the difference between GPT blocks and Transformer Decoder blocks?

I know GPT is a Transformer-based Neural Network, composed of several blocks. These blocks are based on the original Transformer's Decoder blocks, but are they exactly the same? In the...

Asked on 02/25/2021

1 answer

Grouping high dimension Y-space to lower dimensions

I have a ML problem with 300 variables to predict, Meaning I have a multi-label binary classification problem with a Y space of 300 and with about 2000 rows only....

Asked on 02/25/2021 by prog_guy

1 answer

What is the difference between using numpy array images and using images files in deep learning?

What is the difference between using numpy array images and using images files in deep learning? Which way is better?...

Asked on 02/24/2021

2 answer

Maximum Likelihood estimation

Given a sample $ X_1,X_2 dots X_{100}$ and the density function $ f(x;theta) = frac{1}{pi cdot left(1+left(x-theta right)^2right)}$ , find an approximate solution for ...

Asked on 02/24/2021 by Mahajna

2 answer

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