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Data Science : Recent Questions and Answers (Page 302)

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

Alternating Least Squares

can anyone explain difference between Alternating Least Squares(ALS) and the recommendation systems? it will be helpful if you give me an example....

Asked on 11/27/2020 by PavanKumar

1 answer

How to fill missing values by looking at another row with same value in one column(or more)?

Let's say we have a 6*4 data frame in which third and fourth column contain missing value1 2 3 L14 5 6 ...

Asked on 11/27/2020 by sofissecondhuman

1 answer

How long does it typically take to train a MNIST data on a Mac Pro?

My code is below:# define a simple CNN modeldef baseline_model(): # create model model = Sequential() model.add(Conv2D(30, (5, 5), input_shape=(1,...

Asked on 11/27/2020 by user697911

1 answer

Why do we want the variance of the layers to remain the same throughout a deep network?

I've been reading the literature on vanishing/exploding gradients and specifically how they connect to weight initialization. An idea I've come across a few times, which seems very important in this...

Asked on 11/26/2020

1 answer

Cross validation schema for imbalanced dataset

Based on a previous post, I understand the need to ensure that the validation folds during the CV process have the same imbalanced distribution as the original dataset when...

Asked on 11/26/2020

1 answer

Shall I use ordinal encoding or One-Hot-Encoding when using DBSCAN for content clustering on websites?

I want to cluster the preparation steps on cooking recipes websites in one cluster so I can distinguish them from the rest of the website. To achieve this I extracted...

Asked on 11/26/2020 by jochen6677

1 answer

Is Transformer better then GRU for human acitivity recognition

I am working on human activity recognition and I was wondering If there are documented studies( Papers) about GRU vs Transformers in this context?...

Asked on 11/26/2020 by ou2105

0 answer

Shouldn't training and validation loss be approximate before the first epoch is finished?

I'm having this burning question in my head, and I couldn't find the answer anywhere. During training, at least in Keras, the training loss is computed on the current batch,...

Asked on 11/26/2020 by Pedro Henrique Gomes Venturott

1 answer

CNN 3D line angles prediction regression - results of training of phi depend on theta

I am a beginner in "deep learning". What I am trying to do, is to predict two angles of a 3D line projected on a 2D image. The toy model...

Asked on 11/26/2020 by Lech Wiktor Piotrowski

1 answer

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