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Data Science : Recent Questions and Answers (Page 19)

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

sklearn.cross_validation.cross_val_score "cv" parameter question

I was working through a tutorial on the titanic disaster from Kaggle and I'm getting different results depending on the details of how I use cross_validation.cross_val_score. If I call it...

Asked on 10/05/2021 by Tennessee Leeuwenburg

2 answer

Keras val_acc unchanging when training (same label assigned to all images)

I am using Keras to make a "set" identifier for the card game Set. Here is my script (some code may be unnecessary but was used during...

Asked on 10/05/2021 by keyan.r

0 answer

Plot hurricane track

Hello folks, Recently while going through a research paper I happened to come across a plot showing the...

Asked on 10/04/2021

1 answer

How to calculate steady/incremental growth?

I have timeseries data for stocks at minute intervals. What is the best way to calculate incremental growth, for example if I have a stock's price from 9am to 2pm...

Asked on 10/04/2021 by STEIN

2 answer

ConvNet - What to improve regarding architecture, procedure and technique?

I have a dataset of 180k images of license plates (so, not necessary to localize the license plate at first) for which I try to recognize the characters on the...

Asked on 10/04/2021

0 answer

String handling by OneHotEncoder

I am reading everywhere on new questions and blogs that since version 0.20, OneHotEncoder is able to handle string features. Moreover, the documentation is what looks more ambiguous. Here are...

Asked on 10/04/2021 by pragun

1 answer

Can we have a dataset with slight difference in target values for same value of feature variable?

I am trying to generate a dataset which involves 1 feature variable(X) and 1 target variable(y). The feature variable represents values on the X-axis on the graph and target variable...

Asked on 10/04/2021

1 answer

tuning a convolution neural net, sample size

I keep reading that convolution neural net (CNN) performs best with lots and lots (100k+) of data. Is there any rule of thumb, or lower limit for data size...

Asked on 10/04/2021

1 answer

Predicting outcome of MOBA team games

MOBA team games have teams composed of a subset of 5 heroes from a larger set of possible heroes (say 100 heroes in the larger set) For example, a game...

Asked on 10/04/2021 by Aviad P.

1 answer

How to find farthest data points from a predefined cluster in a data set with Python?

I have a data set where certain rows are labeled as one class (and interpreted as distinct cluster #1 as such), but other points are either unlabeled or ambiguous. Hence...

Asked on 10/04/2021

1 answer

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