Data Science Questions, Problems & Solutions : TransWikia.com ~ Page 246

What has to be considered when creating a radar chart?

I'm currently analyzing a WhatsApp chat history. One thing I'm interested in is the time when the two people communicated. I thought this is a perfect use case for a...

Asked on 01/14/2021

1 answer

Sudden drop in loss at epoch start, then gradual raise

I'm building an autoencoder for natural language words. The question: Why do I see at the start of each epoch a sudden drop in the loss and then gradual bounce...

Asked on 01/14/2021 by coobit

0 answer

Cross-entropy loss explanation

Suppose I build a neural network for classification. The last layer is a dense layer with Softmax activation. I have five different classes to classify. Suppose for a single training...

Asked on 01/14/2021

5 answer

Can we calculate AUC for deep learning based regression task

There is a paper [ref.attaced], where they used a deep learning based regression and evaluated using mse and AUC. The targets are continuous values such...

Asked on 01/14/2021

1 answer

PySpark: How do I specify dropna axis in PySpark transformation?

I would like to drop columns that contain all null values using dropna(). With Pandas you can do this with setting the keyword argument axis = 'columns' in dropna(). ...

Asked on 01/14/2021 by Horbaje

2 answer

how can i plot probability distribution of my classes in the way below?

All, I would like to plot the following: I have a binary classification problem where I am using xgboost as...

Asked on 01/14/2021

0 answer

Building a machine learning model to predict crop yields based on environmental data

I have a dataset containing data on temperature, precipitation and soybean yields for a farm for 10 years (2005 - 2014). I would like to predict yields for 2015 based...

Asked on 01/13/2021 by user308827

3 answer

product recommendation of a single product based on customer similarity?

I have been wondering how you can build a model to recommend only one single product to a bunch of customers. So basically the question that I would like to...

Asked on 01/13/2021 by corianne1234

0 answer

Pearson Product Moment Correlation vs Cosine Similarity For Encoded Text Comparison

I've seen a few different examples of the implementation of Google's Sentence Encoders. Many of these use different methods to find the similarity between sentences. For example, the standard Universal...

Asked on 01/13/2021

0 answer

Cosine similarity with arrays contaning NaN

I am trying to calculate a cosine similarity using Python in order to find similar users basing on ratings they have given to movies. As it can be expected there...

Asked on 01/13/2021 by user641597

3 answer

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