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Data Science : Recent Questions and Answers (Page 119)

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

How to select the best parameters for GridSearchCV?

I've created a couple of models during some assignments and hackathons using algorithms such as Random Forest and XGBoost and used GridSearchCV to find the best combination of parameters. But...

Asked on 05/29/2021 by Kush

1 answer

How to control for Co-variate shift in test data set compared to train data for regression task?

I am working on a regression project. But I am facing the problem of covariate shift in features due to time delay.Test data was collected a year later due to...

Asked on 05/29/2021

1 answer

Alternative to VGAM for Zero Truncated Negativ Binomial GLM in R

Is there an alternative to the vgam Package to do a zero truncated negativ Binomial GLM in R? ...

Asked on 05/29/2021 by JonJup

1 answer

How do I read a dat file, for which I don't know its structure?

Is there any way to atleast read the text from the dat file. I have its corresponding mdf file hence I know what all data and columns are there in...

Asked on 05/29/2021 by Pulkit Bhatnagar

2 answer

Fundamental difference between Tokenizer and TextVectorization in Keras

Is there any fundamental difference between Tokenizer at the word level and the TextVectorization in Keras?...

Asked on 05/29/2021

0 answer

List of samples that each tree in a random forest is trained on in Scikit-Learn

In Scikit-learn's random forest, you can set bootstrap=True and each tree would select a subset of samples to train on. Is there a way to see which samples are used...

Asked on 05/29/2021 by theonionring0127

2 answer

Using pre-trained Faster R-CNN models in Mask R-CNN

I am planning to use mask r-CNN from TensorFlow Object Detection API for one of my projects.When I checked the TensorFlow 1 Detection...

Asked on 05/29/2021 by Mazhar

0 answer

How to add time as a feature into word embeddings?

I have a text corpus and I'm using TfidfVectorizer. Would it be possible to cluster the resultant matrix once I concatenate tf-idf vector and time feature matrix I built([year, month,...

Asked on 05/29/2021 by Megha

0 answer

Features used by MAUI key phrase extraction tool

I have been trying out keyphrase extraction for a while and I want to know what are all the features that MAUI MAUI github uses for training...

Asked on 05/29/2021

1 answer

Balancing the dataset using imblearn undersampling, oversampling and combine?

I have the imbalanced dataset:data['Class'].value_counts()Out[22]: 0 1377571 4905Name: Class, dtype: int64X_train, X_valid, y_train, y_valid = train_test_split(input_x, input_y, test_size=0.20, random_state=seed)print(sorted(Counter(y_train).items()))[(0, 110215),...

Asked on 05/29/2021 by hanzgs

0 answer

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