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Data Science : Recent Questions and Answers (Page 53)

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

How to Identify Repeating Data Entries when the Repeated Entries are Spelled or Constructed Differently

I have a dataset of entries and a variable for the owner of the entry. Some of these people occur more than once. However, the names are sometimes written differently....

Asked on 08/14/2021

1 answer

ValueError: ('The truth value of a Series is ambiguous after applying if/else condition in Pandas data frames

I want to create a new variable for the dataframe details called lower after iterating through multiple data frames.list1 is a list of string values of a column named variable_name...

Asked on 08/14/2021 by Malathi

1 answer

Maths of Xavier initialization

The paper I read is Glorot et al (2010). And the math part is in Section 4.2.1.Formula (5) and (10) make sense to me but I...

Asked on 08/14/2021

0 answer

Keras early stopping to a target

I'm really struggling to understand how the parameters of Keras early stopping callbacks play out, especially in the presence of a baseline. What I want is simply for the...

Asked on 08/14/2021 by Patrice Carbonneau

1 answer

Transformer: where is the output of the last FF sub-layer of the encoder used?

In the "Attention Is All You Need" paper, the decoder consists of two attention sub-layers in each layer followed by a FF sub-layer.The first is a masked self attention...

Asked on 08/14/2021 by Kishkashta

1 answer

Which part should be frozen during transfer learning?

I want to use transfer learning and fine tuning and I need to decide which part ofthe original model will be used and which part will be frozen. I'm...

Asked on 08/14/2021 by Mahler

1 answer

'Collision' resolution for precision in object detection

For object detection we often use metrics based on precision/recall. My question is what is generally the process of matching the prediction and ground truth bound boxes, when there are...

Asked on 08/13/2021 by Kirill Fedyanin

1 answer

CNN backpropagation between layers

I have this CNN architecture: I know how to calculate error for weights based on the output and update weights between output<-->hidden and...

Asked on 08/13/2021 by user63067

1 answer

Normalization before PCA in NLP domains?

I'm working on a basic bag-of-words toy NLP pipeline for sentiment analysis using scikit-learn. From research of other questions here, it seems that the main applicable scaler for before PCA...

Asked on 08/13/2021

0 answer

How to restructure my dataset for interpretability without losing performance?

What I am doing: I am predicting product ratings using boosted trees (XGBoost) with a dataset in this format: What...

Asked on 08/13/2021 by Ruan Putka

1 answer

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