ML study memo of de amateur. Irregular updates.
webinar
scikit-learn video #6: Linear regression (plus pandas & seaborn)
http://blog.kaggle.com/2015/05/28/scikit-learn-video-6-linear-regression-plus-pandas-seaborn/
You should subscribe to kaggle's blog. (Http://blog.kaggle.com/)
A friendly introduction to linear regression (using python)
http://www.dataschool.io/linear-regression-in-python/
Practice: Bike Sharing Demand (kaggle)
https://www.kaggle.com/c/bike-sharing-demand
Since the deadline has been closed, I will not get a formal rank, but it will be evaluated
It seems easy but not so
If you write the code easily and submit it, it will be about 3000/3200 (total number of participants during the deadline)
After grouping in season, holiday, workingday, and weather, each is trained, and test data is predicted using the learning results of the same group.
Use temp, atemp, windspeed, humidity to learn
Commentary: https://www.analyticsvidhya.com/blog/2015/06/solution-kaggle-competition-bike-sharing-demand/
Note
How to choose the learning rate: (too small: slow convergence) ..., 0.001, 0.003, 0.01, 0.03, 0.1, 0.3, 1, ... (too large: cost function does not become small or does not converge) → 3 times each
Feature Scailing: normalized_value = (original_value --average) / (max --min)
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