الملخص

Remote multimodal models offer strong numerical reasoning capabilities over charts and speech, but sending private inputs risks exposing sensitive content. Text-only sanitization cannot directly satisfy fixed media interfaces, while identity anonymization leaves the underlying task content exposed. We introduce ReCast, an agentic plug-in framework that replaces source-specific content while preserving task-relevant relations and the required input modality. ReCast locally converts inputs into a shared textual evidence-query record, jointly rewrites entities and topics with a distilled 4B model, and substitutes values through a locally invertible, role-aware numerical map. A reconstruction agent generates and validates the required media from the protected record. The remote solver returns a program whose protected operands are restored locally before execution. On 4,000 held-out ChartQA and NMSQA examples, ReCast achieves 75.10% accuracy, retaining 92.43% of unprotected remote accuracy, while a model-based audit flags source-content leakage in 7.95% of solver-bound requests. It outperforms all evaluated local baselines, preserving the benefit of remote reasoning while reducing source-content exposure under existing media interfaces.

الكلمات المفتاحية

الموضوع

بيانات النشر

المجلة
غير متاح
وصول مفتوح
وصول مفتوح أخضر

اقتبس هذه المقالة

APA 7

Pei, B., Chen, L., Zhao, B., Wu, Z., Wang, S., Zhang, M., Chen, Y., Liu, Q., Gao, Q., Lu, C. T., & Gao, B. (2026). ReCast: Contract-Preserving Protection for Fixed-Interface Multimodal Reasoning. https://omanscience.com/ar/articles/recast-contract-preserving-protection-for-fixed-interface-multimodal-reasoning

MLA 9

Pei, Bingchen, et al. "ReCast: Contract-Preserving Protection for Fixed-Interface Multimodal Reasoning." https://omanscience.com/ar/articles/recast-contract-preserving-protection-for-fixed-interface-multimodal-reasoning.

شيكاغو (المؤلف–التاريخ)

Pei, Bingchen, Lichong Chen, Bingxi Zhao, Ziang Wu, Sirui Wang, Min Zhang, Yanhao Chen, Qingxu Liu, Qiang Gao, Chang-Tien Lu, and Bo Gao. 2026. "ReCast: Contract-Preserving Protection for Fixed-Interface Multimodal Reasoning." https://omanscience.com/ar/articles/recast-contract-preserving-protection-for-fixed-interface-multimodal-reasoning.

هارفارد

Pei, B., Chen, L., Zhao, B., Wu, Z., Wang, S., Zhang, M., Chen, Y., Liu, Q., Gao, Q., Lu, C. T. and Gao, B. (2026) 'ReCast: Contract-Preserving Protection for Fixed-Interface Multimodal Reasoning', Available at: https://omanscience.com/ar/articles/recast-contract-preserving-protection-for-fixed-interface-multimodal-reasoning.

فانكوفر

Pei B, Chen L, Zhao B, Wu Z, Wang S, Zhang M, et al. ReCast: Contract-Preserving Protection for Fixed-Interface Multimodal Reasoning. https://omanscience.com/ar/articles/recast-contract-preserving-protection-for-fixed-interface-multimodal-reasoning

IEEE

B. Pei, L. Chen, B. Zhao, Z. Wu, S. Wang, M. Zhang, Y. Chen, Q. Liu, Q. Gao, C. T. Lu, and B. Gao, "ReCast: Contract-Preserving Protection for Fixed-Interface Multimodal Reasoning," https://omanscience.com/ar/articles/recast-contract-preserving-protection-for-fixed-interface-multimodal-reasoning.