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Machine Learning - ROC and AUC

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posted @ 2025-07-09 15:37 ZhangZhihuiAAA 阅读(4) 评论(0) 推荐(0)

Machine Learning - Sensitivity and Specificity

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posted @ 2025-07-09 11:13 ZhangZhihuiAAA 阅读(4) 评论(0) 推荐(0)

Machine Learning - Confusion Matrix

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posted @ 2025-07-09 10:26 ZhangZhihuiAAA 阅读(7) 评论(0) 推荐(0)

Machine Learning - Cross Validation

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posted @ 2025-07-09 09:58 ZhangZhihuiAAA 阅读(9) 评论(0) 推荐(0)

Machine Learning - Bias and Variance

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posted @ 2025-07-09 08:30 ZhangZhihuiAAA 阅读(1) 评论(0) 推荐(0)

pip - ImportError: cannot import name '_lazywhere' from 'scipy._lib._util'

摘要： ImportError Traceback (most recent call last) Cell In[15], line 1 > 1 import statsmodels.api as sm File ~/venvs/zpy313/lib/python3.13/site-packages/st 阅读全文

posted @ 2025-07-03 17:08 ZhangZhihuiAAA 阅读(591) 评论(0) 推荐(0)

Data Science and Analytics with Python Study Notes 2

摘要： The correlation coefficient is a numerical measure that describes the strength and direction of a linear relationship between two variables. The Most 阅读全文

posted @ 2025-07-03 10:25 ZhangZhihuiAAA 阅读(14) 评论(0) 推荐(0)

Machine Learning - Training Data, Validation Data and Test Data

摘要： In machine learning, data is often split into three parts—training, validation, and testing—to ensure that the model learns effectively and generalize 阅读全文

posted @ 2025-07-02 22:49 ZhangZhihuiAAA 阅读(19) 评论(0) 推荐(0)

Pyenv - WARNING: The Python sqlite3 extension was not compiled

摘要： zzh@ZZHPC:~/.pyenv/bin$ ./pyenv install 3.13.5 Downloading Python-3.13.5.tar.xz... -> https://www.python.org/ftp/python/3.13.5/Python-3.13.5.tar.xz In 阅读全文

posted @ 2025-07-01 14:42 ZhangZhihuiAAA 阅读(40) 评论(0) 推荐(0)

Numpy - Difference between dot() and cross()

摘要： 1. numpy.dot() — Dot Product (Scalar or Matrix Multiplication) ✅ Purpose: Computes the dot product of two vectors, or does matrix multiplication if 2D 阅读全文

posted @ 2025-07-01 08:28 ZhangZhihuiAAA 阅读(32) 评论(0) 推荐(0)

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