Qwen3.5-4B Real Estate Call Analysis V5 (Egyptian Market)

LoRA fine-tune of Qwen/Qwen3.5-4B for structured-JSON extraction from Egyptian real estate call transcripts (English + Egyptian Arabic).

Training

Hyperparameter Value
Base model Qwen/Qwen3.5-4B
Method LoRA via Unsloth
LoRA rank (r) 16
LoRA alpha 16
LoRA dropout 0.05
Target modules q_proj, k_proj, v_proj, o_proj, gate_proj, up_proj, down_proj
Max seq length 2048
Epochs 6
Effective batch size 16
Learning rate 2e-4, cosine schedule
Warmup steps 50
Optimizer adamw_8bit
Gradient clip 1.0
Weight decay 0.01
Seed 3407

Dataset

Item Value
File training_data_v10_final.jsonl
SHA-256 (first 12) d2026dc822bf
Records 1026 (train 922, val 104)
Train/val split 90/10 stratified by language, seed=3407

Final metrics

Metric Value
Train loss 0.7738
Best clean-eval 0.6224
Best noisy-eval 1.4256
Training time 316.3 min

Output schema

Structured JSON: client_name, customer_sentiment, urgency, timeline, confidence_score, transcript_quality_score, client_profile, special_requests, action_items, call_summary, total_units_requested, and requested_units[] with intent, property_type, location, currency, budget ranges, payment_method, area_sqm, bedrooms, finishing, key_objection.

Inference

Quantized to Q4_K_M (~2.7 GB). Run via llama.cpp / llama-cpp-python. Designed to run on GPUs as small as 6 GB VRAM (RTX 3050 class).

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Model size
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Architecture
qwen35
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