Supervised machine learning algorithms are models trained on labeled data, meaning the data is already tagged with the correct answer. These algorithms learn from the labeled examples provided during training to generalize patterns and make predictions or decisions on new, unseen data.
Let’s consider a classic example: predicting housing prices based on features like square footage, number of bedrooms, number of bathrooms, etc. We’ll use a simple linear regression model, a popular supervised learning algorithm, to demonstrate.
Here’s a Python code example using scikit-learn, a popular machine learning library:
# Import necessary libraries
import numpy as np
from sklearn.model_selection import train_test_split
from sklearn.linear_model import LinearRegression
from sklearn.metrics import mean_squared_error
# Sample data: housing features (square footage) and prices
# In real-world scenarios, you would load this data from a dataset
# For simplicity, I'm generating random data here
np.random.seed(0)
square_footage = np.random.randint(800, 3000, size=100)
prices = 100 + 50 * square_footage + np.random.normal(scale=200, size=100)
# Reshape the data for scikit-learn
square_footage = square_footage.reshape(-1, 1) # Reshape to a 2D array for scikit-learn
# Split data into training and testing sets
X_train, X_test, y_train, y_test = train_test_split(square_footage, prices, test_size=0.2, random_state=42)
# Initialize and train the linear regression model
model = LinearRegression()
model.fit(X_train, y_train)
# Make predictions on the test set
y_pred = model.predict(X_test)
# Evaluate the model
mse = mean_squared_error(y_test, y_pred)
print("Mean Squared Error:", mse)
# Example prediction for a new house with 2000 square feet
new_house_square_footage = np.array([[2000]])
predicted_price = model.predict(new_house_square_footage)
print("Predicted price for a house with 2000 square feet:", predicted_price[0])In this example:
- We first import the necessary libraries.
- We generate sample data for square footage and prices, which would typically come from a dataset in a real-world scenario.
- We split the data into training and testing sets to evaluate the model’s performance.
- We initialize a linear regression model and train it on the training data.
- We use the trained model to make predictions on the test set.
- Finally, we evaluate the model’s performance using mean squared error and make a prediction for a new house with 2000 square feet.
This is a basic example, but the same principles apply to more complex supervised learning algorithms and datasets.
Embrace the dawn with the fervor of a dreamer and the resilience of a conqueror. Today’s canvas awaits the strokes of your passion, painting a masterpiece of inspiration and boundless possibility!!
K
“Embrace the dawn with the fervor of a dreamer and the resilience of a conqueror. Today’s canvas awaits the strokes of your passion, painting a masterpiece of inspiration and boundless possibility!!” – K
Like the majestic eagle soaring high above the clouds, may you rise above challenges with unwavering strength and grace. Let the winds of adversity only lift you higher, as you spread your wings and soar towards the boundless sky of your dreams!!
K
