init commit

lab4/generate_spam_data.py

@@ -0,0 +1,64 @@
+import csv
+import random
+
+random.seed(42)
+
+SPAM_TEMPLATES = [
+    "CONGRATULATIONS! You've WON a {prize}! Click {link} now to claim!!!",
+    "URGENT: Your account will be suspended. Verify at {link} immediately",
+    "Make ${amount} a week working from home, no experience needed! {link}",
+    "FREE {prize} for the first 100 people! Limited time offer {link}",
+    "Dear winner, you have been selected to receive {amount} dollars. Reply now",
+    "Lowest prices on {product}! Buy now and save 90%! {link}",
+    "Your {product} order could not be delivered, click {link} to reschedule",
+    "Hot singles in your area want to meet you! {link}",
+    "Act now! This {product} offer expires in 24 hours {link}",
+    "You have 1 unread message regarding your {amount} refund, claim at {link}",
+]
+
+HAM_TEMPLATES = [
+    "Hey, are we still on for lunch tomorrow at noon?",
+    "Please find attached the {product} report you requested.",
+    "Can you review the pull request I sent over this morning?",
+    "Reminder: team meeting moved to 3pm today.",
+    "Thanks for your help with the {product} demo yesterday.",
+    "The invoice for {amount} has been processed, receipt attached.",
+    "Let's catch up sometime this week, been a while.",
+    "I'll be out of office next Monday, please contact the team lead.",
+    "Great presentation earlier, learned a lot about {product}.",
+    "Attached is the agenda for tomorrow's {product} planning session.",
+]
+
+PRIZES = ["iPhone", "vacation package", "gift card", "laptop", "cash prize"]
+PRODUCTS = ["software", "quarterly", "marketing", "onboarding", "budget"]
+LINKS = ["http://bit.ly/xyz123", "http://claim-now.co/win", "http://free-gift.biz"]
+AMOUNTS = ["500", "1000", "2500", "10000"]
+
+
+def fill(template):
+    return template.format(
+        prize=random.choice(PRIZES),
+        link=random.choice(LINKS),
+        amount=random.choice(AMOUNTS),
+        product=random.choice(PRODUCTS),
+    )
+
+
+def generate(n_per_class=300):
+    rows = []
+    for _ in range(n_per_class):
+        rows.append((fill(random.choice(SPAM_TEMPLATES)), 1,
+                     round(min(1.0, max(0.0, random.gauss(0.85, 0.1))), 3)))
+        rows.append((fill(random.choice(HAM_TEMPLATES)), 0,
+                     round(min(1.0, max(0.0, random.gauss(0.08, 0.07))), 3)))
+    random.shuffle(rows)
+    return rows
+
+
+if __name__ == "__main__":
+    rows = generate(n_per_class=300)
+    with open("data.csv", "w", newline="", encoding="utf-8") as f:
+        writer = csv.writer(f)
+        writer.writerow(["text", "label", "spam_score"])
+        writer.writerows(rows)
+    print(f"Wrote {len(rows)} rows to data.csv")