[P] QLoRA Fine-Tuning of Qwen2.5-1.5B for CEFR English Proficiency Classification (A1–C2) [P]
I fine-tuned Qwen2.5-1.5B for multi-class CEFR English proficiency classification using QLoRA (4-bit NF4). The goal was to classify English text into one of the 6 CEFR levels (A1 → C2), which can be useful for: adaptive language learning systems, plac…