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Data Science : Recent Questions and Answers (Page 52)

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

How is SVD from scikit-surprise handles empty values

I am studying the surprise lib for recommender system. SVD from this lib doesn't require all value input in user-item matrix. But it is a must of the original SVD...

Asked on 08/16/2021

0 answer

For short sentences(max length 10 ), which Name entity recognition algorithm is good?

My Training data look like this . I have to recognize 4 class for each sentence.Any algorithm , which...

Asked on 08/15/2021 by ar sh

0 answer

How to add 'other' as one group to clustering algorithm inference pipeline

I have few clustering algorithms tuned having 5 cluster. I want 6th cluster if new data does not belong initial 5 cluster fall in 6th cluster. 6th cluster...

Asked on 08/15/2021

1 answer

SKLEARN Metrics report "Number of classes, 28, does not match size of target_names, 35. Try specifying the labels parameter"

What's the proper way to define the labels or target names of classification_report? I have the report like this:print(metrics.classification_report(twenty_test.target[:n_samples], predicted, target_names=twenty_test.target_names))I noticed i get the error like in the...

Asked on 08/15/2021

1 answer

What is the difference between KL-divergence, JS-divergence, Wasserstein distance and MMD?

I was reading about different distribution distances, and came acrossKullback-Leibler divergenceJensen-Shannon divergenceWasserstein distanceMaximum mean discrepancy (MMD)The book was too abstract for me to absorb. What are the differences between them,...

Asked on 08/15/2021

0 answer

Cartpole - Number of layers and neurons - model hyperparameters

Can anyone please suggest me how to arrive to the best optimal values for number of layers, number of neurons parameters of the deep learning model in DDQN algorithm for...

Asked on 08/15/2021 by vimala

0 answer

How can I do a train test split for an unbalanced panel data set in Python?

I have an unbalanced, panel pandas data frame. I would like to split this data into a training set and a testing set. Python's train_test_split method will not work because...

Asked on 08/15/2021

2 answer

Error while plotting Logistic Regression Classification

I was trying to plot by using the following code# Visualising the Training set resultsfrom matplotlib.colors import ListedColormapX_set, y_set = X_train, Y_trainX1, X2 = np.meshgrid(np.arange(start = X_set[:, 0].min() -...

Asked on 08/15/2021

1 answer

Integration of Sentiment analysis in CRM

What is the process for integrating sentiment analysis in a CRM? What I am searching for is a system which analyzes the customer comments or reviews using the CRM and...

Asked on 08/14/2021

1 answer

How to preprocess with NLP a big dataset for text classification

TL;DRI've never done nlp before and I feel like I'm not doing it in the good way. I'd like to know if I'm really doing things in a bad way...

Asked on 08/14/2021 by gabriel garcia

1 answer

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