ferryzhou
/ show_linear_sigmoid_sgd.py
Created
September 3, 2017 05:37
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| import numpy as np | |
| # logistic regression. | |
| # yi = sigmoid(dot(a * xi)) | |
| def sigmoid(x): | |
| return 1 / (1 + np.exp(-x)) | |
| N = 1000 | |
| M = 2 |
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| # Download youtube to mp3 | |
| youtube-dl -f bestaudio -x --audio-format mp3 -o '%(playlist)s/%(playlist_index)s – %(title)s.%(ext)s' https://www.youtube.com/playlist?list=PLByf7LdMdgugN_3Jms9fjJpNV6rS_eB2N | |
| # Download playlist | |
| youtube-dl -o '%(playlist)s/%(playlist_index)s – %(title)s.%(ext)s' https://www.youtube.com/playlist?list=PLByf7LdMdgugN_3Jms9fjJpNV6rS_eB2N | |
| # Cut videos | |
| ffmpeg -i movie.mp4 -ss 00:00:03 -t 00:00:08 -async 1 cut.mp4 | |
| # Download from ustream to mp4 so even partially downloaded data can be used |
ferryzhou
/ lending_club_data_analysis.py
Created
May 22, 2020 04:18
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| # $ jupyter notebook | |
| # Right top, click New | |
| # https://www.dataquest.io/blog/jupyter-notebook-tutorial/ | |
| # https://www.kaggle.com/janiobachmann/lending-club-risk-analysis-and-metrics |
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