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Data Science : Recent Questions and Answers (Page 4)

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

What is the best way to train a gradient boosted model on a binomial dataset where the number of "observations" for each instance varies?

I have been trying to figure out the best way to train a gradient boosted model on a binomial dataset. To be more clear my dataset is in a format...

Asked on 12/26/2021

0 answer

what is the difference in terms namely Correlation, correlated and collinearity?

A website says Correlation refers to an increase/decrease in a dependent variable with an increase/decrease in an independent variable. Collinearity refers to two or more independent variables acting in concert...

Asked on 12/26/2021

2 answer

Does training of neural networks follow the same order in each epoch?

Each epoch uses the weight from the end of the previous epoch(correct me if I am wrong). Is the updating of parameters after each batch always in the same order?...

Asked on 12/26/2021

1 answer

How can we perfrom pre fitted standard scalar inverse transform on y variable in pipeline

I want to create pipeline which will inverse transform the y variable after model prediction I have 3 pickle files:X variable scalar transform pre fitted object :-X sclrY variable...

Asked on 12/26/2021

0 answer

Machine learning detect changes in components

I am a student who will finish my studies next year and I want to analyze the job market in advance. I have found an interesting job where it says:The...

Asked on 12/26/2021

2 answer

What is the difference between "Adding more LSTM layers" or "Adding more units on existence layers"?

What is the difference between adding more LSTM layers and just increasing the units of existing layers? Which one is preferred and in which situation?...

Asked on 12/24/2021

3 answer

non-separable assignments of the vertices of a hypercube

I have a question regarding exercise 14.17 in An Introduction to Information Retrieval by Manning et al. The problem is:"Assuming two classes, show that the percentage of non-separable...

Asked on 12/24/2021

1 answer

Reinforcement Learning control with known dynamic equation

I know there is model-based reinforcement learning. But all the approaches assume an MDP. If I want to do a feedback control of a system (i. e. control an...

Asked on 12/24/2021

1 answer

Similarity Measure between two feature vectors

I have face identification system with following details:VGG16 model for feature extraction512 dimensional feature vector (normalized)I need to calculate similarity measure between two feature vectors. So far I have tried...

Asked on 12/24/2021

2 answer

How to build a unbiased predictive ML model when the record of the event is less compared to the total number of records?

I am trying to build a model that will predict the communication loss of a wireless device. For now I am using RandomForestClassifier along with Device and Location as the...

Asked on 12/22/2021

1 answer

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