chao-ji
/ beamsearch_decoder.py
Last active
March 4, 2024 07:09
Easy to understand implementation of beam search algorithm used in decoder of seq2seq models
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| """NumPy implementation of Beam Search. Can be used for decoding in Seq2Seq | |
| models or transformer. | |
| See https://chao-ji.github.io/jekyll/update/2019/01/24/Beam_Search.html | |
| for an in-depth disucssion. | |
| """ | |
| import numpy as np | |
| NEG_INF = -1e9 |
tdomhan
/ coef_weight_plot.py
Created
September 8, 2013 18:16
plotting the largest weights of a L2 regularized classifier + their names
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| import matplotlib.pyplot as plt | |
| import numpy as np | |
| figsize(20,8) | |
| #clf is a sklearn classifier e.g. clf = LogisticRegression() | |
| #vecotorizer is a sklearn vectorizer, e.g. vectorizer = TfidfVectorizer() | |
| #let's get the coefficients: | |
| coef = clf.coef_.ravel() | |
| important = np.argsort(np.abs(coef))[-100:] |