Data Science Questions, Problems & Solutions : TransWikia.com ~ Page 18

Augmenting the validation set in Ensemble Model

I have 8 models which I have trained on 90% of my set (training set) and tracked its performance on the loss of the validation set (10% of the original...

Asked on 11/05/2021

1 answer

Imbalanced Dataset (Transformers): How to Decide on Class Weights?

I'm using SimpleTranformers to train and evaluate a model. Since the dataset I am using is severely imbalanced, it is recommended that I assign weights to each label. An example...

Asked on 11/05/2021

3 answer

What are some ways to transition from additive to multiplicative(or vice-versa) changes in time-series quickly?

Let's say I have a variable x and as time progresses, I want to update the value of x in additive/multiplicative manner using some attributes. At t=t, new_x = x...

Asked on 11/05/2021

1 answer

Random seed in Machine learning model comparison

I would like to ask a question about the random population generation gin splitting the dataset in machine learning classification models. For example, I used seed = 1 and got...

Asked on 10/06/2021 by Rawia Hemdan

2 answer

Noise Elimination with majority vote filtering

I have a dataset with label noise which I wan't to clean with majority/consensus vote filtering. This will mean I will divide the data in K-Folds and train an ensemble...

Asked on 10/05/2021 by Jeuszt

1 answer

Customer Segmentation and Category association

I have to solve two questions on the following dataset:1. arrange customers into mutually exclusive groups.explain the clusters....

Asked on 10/05/2021

1 answer

How to use historic data (granularity at day level) for ML modeling?

There is a scenario where I have to use historic data which is at the day level for the past 5 years.Actually it is water flow data, what quantity...

Asked on 10/05/2021

1 answer

what information can we obtain from t-SNE?

I see that t-SNE can help us reduce dimensions and visualize the data. But what information are we gaining from this visualization? As we know that the new axis don't...

Asked on 10/05/2021

1 answer

Disproving or proving claim that if VCdim is "n" then it is possible that a set of smaller size is not shattered

Today in the lecture the lecturer said something I found peculiar, and I felt very inconvenient when I heard it:He claimed, that if the maximal VCdim of some hypothesis...

Asked on 10/05/2021 by C.H.

1 answer

Extract data from facebook

I am learning about social media analysis. I am aware that we can extract the data from twitter using hashtags and API. Ex; If I use #covid19, I will get...

Asked on 10/05/2021

1 answer

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