What is Baseline?Baseline kya hai?

🧸 Think of it likeAise samjho

Like checking a new diet against simply eating normally: if the fancy plan doesn't beat the simple one, it isn't worth it.Jaise naye diet plan ko normal khaane se compare karna: agar fancy plan simple waale se behtar nahi, toh woh bekaar hai.

📘 ExplainedVistaar se

Baselines include 'always predict the most common class', 'predict yesterday's value', a simple rule, or the current human process. Without a baseline, a score like 85% means nothing. Baselines also catch bugs: if a fancy model barely beats a trivial one, something may be wrong.Baselines mein 'hamesha sabse common class predict karo', 'kal ki value predict karo', ek simple rule, ya aaj ka insaani process hota hai. Baseline ke bina 85% jaisa score kuch nahi batata. Baselines bugs bhi pakadte hain: agar fancy model ek simple wale ko mushkil se harata hai, to kuch gadbad ho sakti hai.

💡 Real exampleAsli example

If 90% of loans are repaid, a model must beat 90% accuracy to be useful.Agar 90% loans chukaaye jaate hain, to model ko kaam ka hone ke liye 90% accuracy harani hogi.

📖 Learn it step by stepStep by step seekho

• Measuring models: accuracy, precision and recallModels ko measure karna: accuracy, precision aur recall
• Two kinds of prediction: regression and classificationDo tarah ki prediction: regression aur classification

🔗 Related termsJude hue shabd

• AccuracyThe share of all predictions that were correct.Saari predictions mein se kitni sahi thi, uska hissa.
• BenchmarkA standard test set used to compare models fairly.Models ko nishpaksh tarike se compare karne ke liye ek standard test set.