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Data Science : Recent Questions and Answers (Page 221)

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

How will my CNN results be affected by large discrepancies between the number of samples in some of the classes?

The number of samples in my dataset range between 3800 and 100,000 per class. Was wondering if my neural network will be more biased towards the classes with a higher...

Asked on 02/10/2021 by Jamil Zaitouny

0 answer

Train NN for balanced accuracy

I'm trying to get a NN (a CNN, to be precise) to predict labels on hugely imbalanced data, i.e. some classes are much bigger than others. I want to optimize...

Asked on 02/10/2021 by karu

0 answer

Horizontal Bar Char Issues in Tableau with Excel Spreadsheet Beginner Visualization Question

Hello i did a good graphic vertical chart with a dark theme.but now i want to do it in horizontal chart and i have some issues. i had used...

Asked on 02/10/2021 by Ruben Gavidia

0 answer

Should Principal components be normalized before applying K means on them?

I want to get the Principal components of a dataset and apply K mean clustering on them. Do I need to Normalized the PCA output before applying Kmeans on them...

Asked on 02/09/2021 by udAyKumArVermA

1 answer

Naive Bayes and Support Vector Machine (NBSVM) Classification

I am relatively new to datascience and have a question about NBSVM. I have a two class problem and text data (headlines from the newspaper). I want to use NBSVM...

Asked on 02/09/2021 by OldTimeRambler

1 answer

feature importance with CNN

I can use shap to extract important features for Dense NN. However, for CNN, I encountered two problems:the feature order may be messed up or combined after the filtering and...

Asked on 02/09/2021 by user110020

0 answer

How to find whether a dataset is blanced or imbalanced?

I have few dataset to experiment classification(Multi-class). These datasets are about 400GB. I wanted to know whether the dataset is balanced or imbalanced. How to know that dataset is balance...

Asked on 02/09/2021 by Data Bee

3 answer

What is the defining Set in NLP

I am reading the paper Man is to Computer Programmer as Woman is to Homemaker? Debiasing Word Embeddings here is the pdf. On page...

Asked on 02/09/2021

1 answer

Understanding declared parameters in my Conv2d layer of my convolutional neural network

I am trying to understand the architecture of my keras model implemented by the sequential model. Here is a piece of the code :model = Sequential([ ...

Asked on 02/09/2021 by baddy

1 answer

How to add Error Bar to Matplotlib line plot?

I have the following dataset which I use to plot a line plot. The plot is obtained as the mean of values obtained from the data. I want to add...

Asked on 02/09/2021

1 answer

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