Data Science Questions, Problems & Solutions : TransWikia.com ~ Page 265

Predicting change of shapes/coordinates

I'm trying to find a way to predict/calculate how a shape (e.g. outline of a glacier) will change in the future—based on its history (previous shape) and additional factors (e.g....

Asked on 12/29/2020 by Fabian Schultz

1 answer

Oversampling before Cross-Validation, is it a problem?

I have a multi-class classification problem to solve which is highly imbalanced. Obviously I'm doing oversampling, but I'm doing cross-validation with the over-sampled dataset, as a result of which I...

Asked on 12/29/2020 by Debadri Dutta

2 answer

SelectFromModel vs RFE - huge difference in model performance

Note: I have already looked at Difference between RFE and SelectFromModel in Scikit-Learn post and my query is differnt from that postExpectation:SelectFromModel and RFE have similar/comparable performance...

Asked on 12/29/2020 by Srinath Ganesh

1 answer

When to normalize or regularize features in Data Science

How can I know when I need to use normalization and when regularization of features.I know that when I have big difference between min and max values in some...

Asked on 12/28/2020 by taga

4 answer

Explain FastText model using SHAP values

I have trained fastText model and some fully connected network build on its embeddings. I figured out how to use Lime on it: complete example can be found in ...

Asked on 12/28/2020

0 answer

Is it Possible to Use Machine Learning for Ranking Alternatives?

Right now, I’m working on road and street safety analysis. I have a dataset of dangerous points in four regions of a city. Some of the available variables are...

Asked on 12/28/2020 by sahar

1 answer

what is Tensorflow Quantum(TFQ)?

Google announced a new open-source library called TensorFlow Quantum(TFQ) so I am curious to know about Tensorflow quantum.what is TensorFlow Quantum?How it is useful with an existing...

Asked on 12/28/2020 by Bala venkatesh

2 answer

Is there a library or algorithm to identify forgery in images of documents?

I am trying to implement a deep learning solution to identify if there is any forgery in images of documents. This solution for example, https://github.com/ISICV/ManTraNet, is capable...

Asked on 12/28/2020 by esan

0 answer

Non-Real Time Data Augmentation for CNN Classification. What are the drawbacks?

When people talk about and use data augmentation, are they mostly referring to real-time data augmentation? In the case of image classification, that would involve augmenting the data right before...

Asked on 12/28/2020 by Stephanie Lin

1 answer

SVM radial basis generate equation for hyperplane

I need to generate an equation for hyperplane, I have two independent variables and one binary dependent variable. Regarding this following equation for svm , $f(x)=sgn( sum_i alpha_i K(sv_i,x)...

Asked on 12/28/2020 by Alejandro

1 answer

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