Mayur Ingle thecoder8890

## Fraud-detection-model-would-F1-score.md

      
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                thecoder8890
                / Fraud-detection-model-would-F1-score.md
            
            
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              July 14, 2025 07:05
            
              
                For a fraud detection model, would F1-score be a better choice than accuracy?
              
          
✅ Why F1-score Is Better:

The F1-score is the harmonic mean of precision and recall, and gives a more balanced picture:
$$
F1 = 2 \times \frac{\text{Precision} \times \text{Recall}}{\text{Precision + Recall}}

  
## feature_engineering.ipynb

      
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                thecoder8890
                / feature_engineering.ipynb
            
            
              Created
              June 15, 2025 13:51
            
              
                Feature_Engineering.ipynb
              
          
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## react-18-root-api.js
import ReactDOM from 'react-dom';
import App from 'App';

const container = document.getElementById('app');
const root = ReactDOM.createRoot(container);

root.render(‹App />);

## react-17-root-api.js
import ReactDOM from 'react-dom';
import App from 'App';

const container = documentsgetElementByIdLappl;
ReactDOM.render(<App />, container);

## HelloWorld.java
class HelloWorld {
public static void main(String args[]) {
System.out.println("Hello World!");
}
}

## IsUnique
public class IsUnique {
	/**
	 * O(N) O(1)
	 */
	public boolean isUnique1(String s) {
		if (s == null || s.length() > 256) {
			return false;
		}
		boolean[] map = new boolean[256];
		char[] chars = s.toCharArray();
	import ReactDOM from 'react-dom';
	import App from 'App';

	const container = document.getElementById('app');
	const root = ReactDOM.createRoot(container);

	root.render(‹App />);
	import ReactDOM from 'react-dom';
	import App from 'App';

	const container = documentsgetElementByIdLappl;
	ReactDOM.render(<App />, container);
	class HelloWorld {
	public static void main(String args[]) {
	System.out.println("Hello World!");
	}
	}
	public class IsUnique {
	/**
	* O(N) O(1)
	*/
	public boolean isUnique1(String s) {
	if (s == null \|\| s.length() > 256) {
	return false;
	}
	boolean[] map = new boolean[256];
	char[] chars = s.toCharArray();