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Data Science : Recent Questions and Answers (Page 77)

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

How to fix the index value that I use for X_test and y_test?

I am writing code for SVR. Therefore, I have generated my code as the requirements. But I am stuck on writing codes for the index of for-loop of X_test and...

Asked on 07/16/2021 by As if

1 answer

Training with different datasets for the same better VAE model yields poor results

The VAE model I used here https://github.com/keras-team/keras-io/blob/master/examples/generative/vae.py.It can produce very well results for the minist and fashion minist dataset. But when I use my datasets, the...

Asked on 07/15/2021 by Guo Ray

0 answer

Logistic Regression optimal threshold is a negative value

I run the code below:import pandas as pdimport numpy as npfrom sklearn.model_selection import train_test_split from sklearn import linear_modelimport matplotlib.pyplot as pltfrom sklearn.linear_model import LogisticRegressionfrom numpy import sqrtfrom numpy...

Asked on 07/15/2021 by user872009

1 answer

Contextual Object Detection

An example of what I'd like to do is identify the price of a product on a product page. While I can train a CNN to identify prices, it's...

Asked on 07/15/2021 by static416

0 answer

MLP sequential fitting

I am fitting a Keras model, using SGDInput dataset X_train has 55000 entries. Can anyone explain the yellow highlighted values?For me,...

Asked on 07/15/2021 by sidhom slim

1 answer

Does the abstraction of a class affects the performance of neural networks?

For example, if I have 3 audio classes includingAmbulance SirenPolice Car SirenFiretruck Sirenassuming these 3 classes could be distinguished by humans. If I just want the model to classify all...

Asked on 07/14/2021 by Nontawat Wutticome

1 answer

Most useful clustering algorithm for NER / document matrix

I have a matrix composed of documents in columns and named entities recognized in all the documents as rows. K-means clustering has not offer me a meaningful set of clusters,...

Asked on 07/14/2021 by Juan Luis Chulilla

0 answer

Plot Two Categorical Variables

How to plot two categorical variables in Python or using any library? I want to plot the Playing Role of a Cricketer (Batsman, Bowler, etc.) VS Bought_By (Franchise Names, e.g.,...

Asked on 07/14/2021 by Pradeep Singh

1 answer

Count repeating "objects" in a picture

This is my first data-science project and I would love to get some guidance to know how to get started. My problem is the following:I want to count objects...

Asked on 07/14/2021

1 answer

Should augmentation also be performed on the validation set when the dataset is imbalanced?

I am training a CNN on images (2 classes) and I have an imbalanced dataset (1:7 ratio). I am trying to tackle this by performing offline image augmentation. Should I...

Asked on 07/14/2021 by Denisa Ionascu

2 answer

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