Data Science Questions, Problems & Solutions : TransWikia.com ~ Page 68

Visualizing a Perceptron

I wanted to visualize how a perceptron learns, so I made a class that performs gradient descent. To show the decision, I plot a plane showing where positive examples and...

Asked on 07/27/2021 by K. Shores

1 answer

Algorithm to find Unique users from their transactions

ScenarioAn eCommerce site allow users to purchase items without creating an Account. However, it captures following attributes from the Purchases based on the type of payment and type of delivery:NameAddressEmail...

Asked on 07/27/2021 by Chenna Reddy

1 answer

Application of Deep Reinforcement Learning

I'm new to deep learning, and especially to reinforcement learning. I would like to know if it's possible to predict which combination of hashtags (from a subset of chosen hashtags)...

Asked on 07/27/2021 by Tomas Piaggio

1 answer

In a Time Series Problem, is it possible to forecast quantities by learning the patterns of other items? What are my options?

Suppose I own a store that sells a variety of apples and I have the following stats each month.Report Date Type of Apple (TA) Quantity Available(QA) Quantity Sold in the...

Asked on 07/26/2021 by Arun Ajay

1 answer

Get the prediction probability using prediction function

I'm new to SVM models. I took custom SVM classifier from the github. In there standard predict function was overwritten by custom predict function.def predict(self, instances): predictions...

Asked on 07/26/2021 by AbRe

1 answer

What are the simplest predictive ranking algorithms?

I want to apply a predictive ranking algorithm to a dataset, so I've been reading about Learning to Rank, RankNet and LambdaMART [1][2]....

Asked on 07/26/2021

1 answer

Learning Curves and interpretations

I've trained 4 classifiers on an undersampled dataset.I plotted the learning curve for each classifier and I got the following results : ...

Asked on 07/26/2021

1 answer

gradient descent diverges extremely

I have manually created a random data set around some mean value and I have tried to use gradient descent linear regression to predict this simple mean value. I have...

Asked on 07/26/2021 by user94586

1 answer

How to impute Missing values not the usual way?

I have a dataset of 4712 records working on binary classification. Label 1 is 33% and Label 0 is 67%. I can't drop records because my sample is already small....

Asked on 07/26/2021

4 answer

Is the PR AUC invariant under label flip?

The ROC-AUC curve is invariant under a flip of the labels. I don't know if its a famous result so I will give the proof below. My question is if...

Asked on 07/26/2021

2 answer

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