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Data Science : Recent Questions and Answers (Page 248)

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

improve NER model accuracy with spaCy dependency tree

I have search at lot, was not able to find a solution for my problem...I am training a NER model, that should detect two types of words: Instructions and...

Asked on 01/12/2021

0 answer

Encode missing data and unseen data

Let's assume that I have a classification problem and all my features are categorical data. I have missing data (and I do not want to do any imputation). Also, I...

Asked on 01/12/2021 by Outcast

1 answer

Gradient Checking: MeanSquareError. Why huge epsilon improves discrepancy?

I am using custom C++ code, and coded a simple "Mean Squared Error" layer.Temporarily using it for the 'classification task', not a simple regression. ...maybe this causes the issues?...

Asked on 01/12/2021

1 answer

Normalization and Outlier on Target variable which is continuous

I have doubt that should I perform outlier analysis and normalization even on target variable which is continuous ?...

Asked on 01/12/2021 by Navneeth

1 answer

How to get used to matricial/vectorial operations?

I came to data science/machine learning from another background in computer science and i feel that i'm lacking of experience with matricial/vectorial operations. Python or Matlab, for instance, provide awesome...

Asked on 01/12/2021 by joann2555

1 answer

Physical modelling with neural networks - single output + stack ensemble vs multi-output

We are trying to replace an existing physical model (8 inputs/7 outputs) with artificial neural networks. The physics behind the existing model is mainly thermodynamics of humid air for air...

Asked on 01/12/2021 by fernikalo

1 answer

Cross validation for unbalanced dataset using Orange data mining tool

I am using the Orange data mining tool to build and analyze models (decision tree, ANN, ...) predicting customer churn. As this is an imbalanced class problem (10% churn, 90%...

Asked on 01/12/2021 by Emma Bartholomeeusen

1 answer

Determine how each feature contribute to XGBoost Classification

so for a summary of what I have done: My dataset has 5 classes and 10 parameters. I used XGBclassifer from sklearn to investigate if I could use those 10...

Asked on 01/12/2021 by Tran Tran

2 answer

How to do feature selection for clustering and implement it in python?

I am trying to implement k-means clustering on 60-70 features and I came across a post for feature selection technique on quora by Julian Ramos, but...

Asked on 01/12/2021 by Akash Dubey

2 answer

Parallel inference for 1000 different Tensorflow models using the GPU?

I have a 1000 Tensorflow models with the same architecture but having different weights each. For each of these models I would like to do inference, whereas each of the...

Asked on 01/12/2021 by Daan Klijn

0 answer

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