AIHiranyagarbha · Class 11-12
Chatbot 'sochta' nahi, predict karta hai
AI itne confident tone mein galat jawab kaise de deta hai?
Socho pehle… phir dekho jawab
Kyunki language model ka kaam hai 'agla shabd kya hona chahiye' predict karna — sach check karna uska built-in kaam nahi. Jab data mein jawab kamzor ho, tab bhi woh ek fluent, 'sahi lagne wala' jawab bana deta hai. Isko hallucination kehte hain.
Seekhna kaise hota hai: model ke andar crores parameters (weights) hote hain. Woh prediction karta hai, phir galti naapi jaati hai — loss, jaise (prediction − sahi jawab)². Phir weights thode-thode us disha mein badle jaate hain jahan loss ghate (gradient descent). Yeh arbon baar dohrao, toh patterns seekh jaata hai.
Iska matlab: jo data mein hai, wahi seekhega — bias bhi. Agar data mein kisi group ki tasveer ya bhasha kam hai, toh model us par kamzor ya ek-tarfa hoga. Aur privacy: jo tum type karte ho, woh company ke server par jaata hai; Aadhaar, password, doston ki personal baatein wahan na daalo.
Trade-off: AI se kaam tez hota hai, par agar har sawaal usi ko de diya, toh tumhara dimaag woh 'muscle' kho deta hai jo exam aur zindagi mein chahiye. Achha tareeka: pehle khud try karo, phir AI se check karwao, aur uske facts ko textbook ya asli source se verify karo.
Ghar pe try karo
Kisi chatbot se apne shehar ke baare mein ek aisa sawaal poochho jiska jawab tum pakka jaante ho (jaise tumhare school ka naam kis saal badla, ya tumhari gali ka naam). Dekho woh sahi bolta hai, 'pata nahi' bolta hai, ya kuch bana deta hai.
Wow!
Model ko 'main nahi jaanta' bolna bhi alag se sikhana padta hai — natural tareeke se woh hamesha kuch na kuch bolega.
3 sawaal
- Language model basically kya predict karta hai?
Jawab dekho
Agla shabd/token. Woh text ka agla token predict karke jawab banata hai.
- Training mein weights kis tareeke se badle jaate hain?
Jawab dekho
Loss ghatane ki disha mein (gradient descent). Gradient descent loss kam karne ke liye weights ko nudge karta hai.
- Chatbot ka confident par galat, bana hua jawab kya kehlata hai?
Jawab dekho
Hallucination. Fluent lekin tathya-heen output ko hallucination kehte hain.
NCERT se jodo: NCERT Class 11 Computer Science / Informatics Practices — emerging trends (artificial intelligence, machine learning)