الملخص
FinVector-Market-4B adapts Qwen/Qwen3.5-4B with rank-16 LoRA on a 22,000-example corpus for structured financial tasks. We evaluate the base and adapted models on the same 600-example benchmark under implicit and explicit JSON-schema contracts. Supplying the schema alone raises base-model JSON validity from 0% to 91.3%. Under matched explicit prompting, the frozen scores improve from 14.7% to 40.0% for FinQA answer exact match, from 48.0% to 82.7% for calculator-expression correctness, from 20.1% to 89.5% for scenario branch-label agreement, and from 52.4% to 87.2% for implication-direction agreement. A post-hoc policy-scoring audit shows that the reported macro-F1 decline reflects a changing label set; using the same three target classes gives 77.4% for the base and 83.1% for the adapter. Filing overlap and calculator-target inconsistencies qualify the benchmark's generalization claims. The results show that compact financial domain adaptation can produce substantial task-specific gains beyond output-format learning under matched prompting, with gains bounded by the evaluated task distribution and prompt contract.
الكلمات المفتاحية
الموضوع
بيانات النشر
- المجلة
- غير متاح
- وصول مفتوح
- وصول مفتوح أخضر
اقتبس هذه المقالة
APA 7
Khaybullina, A. (2026). FinVector-Market-4B: A Controlled Study of LoRA Adaptation for Structured Financial Tasks. https://omanscience.com/ar/articles/finvector-market-4b-a-controlled-study-of-lora-adaptation-for-structured-financial-tasks
MLA 9
Khaybullina, Alina. "FinVector-Market-4B: A Controlled Study of LoRA Adaptation for Structured Financial Tasks." https://omanscience.com/ar/articles/finvector-market-4b-a-controlled-study-of-lora-adaptation-for-structured-financial-tasks.
شيكاغو (المؤلف–التاريخ)
Khaybullina, Alina. 2026. "FinVector-Market-4B: A Controlled Study of LoRA Adaptation for Structured Financial Tasks." https://omanscience.com/ar/articles/finvector-market-4b-a-controlled-study-of-lora-adaptation-for-structured-financial-tasks.
هارفارد
Khaybullina, A. (2026) 'FinVector-Market-4B: A Controlled Study of LoRA Adaptation for Structured Financial Tasks', Available at: https://omanscience.com/ar/articles/finvector-market-4b-a-controlled-study-of-lora-adaptation-for-structured-financial-tasks.
فانكوفر
Khaybullina A. FinVector-Market-4B: A Controlled Study of LoRA Adaptation for Structured Financial Tasks. https://omanscience.com/ar/articles/finvector-market-4b-a-controlled-study-of-lora-adaptation-for-structured-financial-tasks
IEEE
A. Khaybullina, "FinVector-Market-4B: A Controlled Study of LoRA Adaptation for Structured Financial Tasks," https://omanscience.com/ar/articles/finvector-market-4b-a-controlled-study-of-lora-adaptation-for-structured-financial-tasks.