AI in the Real World

AI is used in many industries today:

Applications

• Healthcare — disease diagnosis, drug discovery
• Finance — fraud detection, algorithmic trading
• Transportation — self-driving cars, route optimization
• Education — personalized learning, automated grading
• Entertainment — recommendation systems, game AI

AI Classification Example

PYTHON

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# Simple classifier
def classify_email(subject, body):
    spam_words = ["free", "win", "money", "click", "offer"]
    text = (subject + " " + body).lower()

    score = sum(1 for word in spam_words if word in text)

    if score >= 2:
        return "SPAM"
    return "NOT SPAM"

print(classify_email("Free money!", "Click here to win"))
print(classify_email("Meeting tomorrow", "Let's discuss the project"))

Try It Yourself

Practice

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Exercise

Name 3 industries where AI is used.

Answer

Healthcare, Finance, Transportation, Education, Entertainment (any 3).

Quick Quiz

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Which industry uses AI for disease diagnosis?

Finance

Healthertainment

Healthcare

Transportation

Healthcare uses AI for disease diagnosis, drug discovery, and medical imaging.

Retry Quiz

Interview Questions

How is AI used in recommendation systems?

AI analyzes user behavior and preferences to suggest relevant content, products, or services (like Netflix or Amazon).

Tutorial Complete

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