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Data Science Notes

This is a repository to store my personal notes about my learnings in Data Science and other resources.

Table of Contents

Machine Learning

Evaluation Metrics

Classification

  • Accuracy: $accuracy = \frac{TP+TN}{TP+TN+FP+FN}$
  • Precision - $precision = \frac{TP}{TP+FP}$
    • High precision = lower FP rate, i.e. not many TP are incorrectly classified as FN
  • Recall: $recall = \frac{TP}{TP+FN}$
    • High recall = lower FN rate, i.e. most TP are classified correctly
  • F1 Score: $f1 = 2\times \frac{precision\times recall}{precision + recall}$

(back to Machine Learning)

Algorithms

KNeighborsClassifier

  • Used for supervised classification
  • measured by Accuracy

(back to Machine Learning)

Resources

Design

R/RStudio

eBooks

(back to Resources)

Tips and Tricks

To generate a requirements.txt file from the command line: pip freeze > requirements.txt

(back to Tips and Tricks)

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This is a repository to store my personal notes about Data Science.

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