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Data Science : Recent Questions and Answers (Page 226)

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

Predicting algorithm elapsed time using a Gaussian Process

I am new to the Gaussian Processes. I have a simple problem: given some training data of an algorithm performance given its problem size, I want to predict how long...

Asked on 02/05/2021

0 answer

Causal inference VS Active learning?

Imagine we have some lists of features that are changing in time. Each row of the list corresponds to a sample (Change in space). I would like to know whether...

Asked on 02/05/2021 by john22

1 answer

Do smaller neural nets always converge faster than larger ones?

In your experience, do smaller CNN models (fewer params) converge faster than larger models? I would think yes, naturally, because there are fewer parameters to optimize. However, I am training...

Asked on 02/05/2021

2 answer

Handling missing data - secondary driver characteristics in insurance data

I have an insurance dataset which includes an indicator that indicates whether the policy insures a secondary driver, and the secondary driver's age/sex. Problem is most policies do not have...

Asked on 02/04/2021 by lostwanderer

0 answer

How to structure my data into features and targets for PCA on Big Data?

I want to apply the PCA algorithm from Scikit-Learn.(https://scikit-learn.org/stable/modules/generated/sklearn.decomposition.PCA.html ) At the part where I have to separate the features and the targets I got a little...

Asked on 02/04/2021 by Ariadne R.

1 answer

Which predictive model is appropriate?

I'm completely lost when trying to choose the type of predictive model for my problem. Is it autoregressive model, nonlinear time series, Markov Chain or other? Can someone please give...

Asked on 02/04/2021 by howardpotts

2 answer

Keras, re use convoluted layers training for various flattened layers training

I want to train a range of models, that are very similar; the convoluted layers are the same but the flattened part changes. Example; different density, initially I have model.add(Dense(512))...

Asked on 02/04/2021 by Carlos P Ceballos

1 answer

Why does the overfitting decreases if we choose K to be large in K-nearest neighbors?

I am studying machine learning and I am focusing on K-nearest neighbors . I have understood the algorithm, but I have still a doubt, which is on how to...

Asked on 02/04/2021

1 answer

How to decide who to market? Clustering or Decision Tree?

I am working with a dataset that has enough observations and ~ 10 variables,half of the variables are numericanother half of the variables are categorical with 2-3 levels (demographics)one ID...

Asked on 02/04/2021 by Data Enthusiast

2 answer

ValueError: matmul: Input operand 1 has a mismatch in its core dimension 0,

I am new to python and programming for that matter. I am trying to solve a special type of wave equation using finite element method and carry out simulations in...

Asked on 02/04/2021

1 answer

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