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Data Science : Recent Questions and Answers (Page 219)

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

It seem that the textbook "Machine Learning - A Probabilistic Perspective" uses input and output in a opposite way, is it?

Chapter 1 of "Machine Learning - A Probabilistic Perspective" by Kevin Patrick Murphy saysWe now consider unsupervised learning, where we are just given output data, without any inputs. The goal...

Asked on 02/12/2021 by yaojp

2 answer

Classification report question

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Asked on 02/12/2021 by FateCoreUloom

2 answer

Image grid - labels?

I was wondering if labels could be visualized below images in the image grid tool in Image Analytics? I know, this feature might be not terribly useful for images in...

Asked on 02/12/2021 by Sal9K

0 answer

When developing machine learning models, is the size of each class in the test set important?

I am thinking about the prospective application of a trained classifier in a real-world context. We know that when we do over/under-sampling to balance our dataset, we never touch the...

Asked on 02/12/2021

1 answer

How many positive responses are good enough for building a marketing response model when the response rate is low(0.5%)

We are planning a marketing campaign to collect data and the response rates for a random sample. Total population size is 10 million and historically, response rates are low...

Asked on 02/12/2021 by Max64

0 answer

How to load a saved model in TensorFlow?

This is my code in Python:from __future__ import absolute_import, division, print_function, unicode_literalsimport tensorflow as tffrom matplotlib import pyplot as pltimport numpy as npI checked if the saved model is...

Asked on 02/12/2021 by Remy

1 answer

How to train on extended data set correctly

I have trained my classifier on pictures with a mixture of several classeson each picture, e.g. A-F. The classifier is able to (nearly) correctly segment those classeson the...

Asked on 02/11/2021 by user28977

1 answer

Solutions for Labelling Training Data for Binary Classification Problems

I have a huge dataset for which I am trying to use an 80-20 (Holdout method) approach to train and test my model. However, the dataset I have been given...

Asked on 02/11/2021

1 answer

Why RMSProp converges faster than Momentum?

Why is RMSProp in many cases converging faster than Momentum? Momentum: $$v_{dW} := beta v_{dw} +(1-beta)dW$$$$W := W-alpha v_{dw}$$ RMSProp: $$ S_{dw} := B cdot S_{dw} + (1-B)cdot (dW)^2$$...

Asked on 02/11/2021

2 answer

How to compare between two datasets of lexical density?

I have two dataset from two different texts representing lexical density as a proportion based on a corpus. Both datasets are represented in the images below. Now, let's suppose I...

Asked on 02/11/2021 by Samir Ahmane

0 answer

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