3 papers
cs.IR2026
ExplainRoute: A Pre-Deployment Audit Framework for Non-Answer-Giving Programming Tutors
Yiming Gai, Yingying Zhang, Xuefei Huang
Programming tutors should support learners' own explanations rather than immediately providing model answers. We present ExplainRoute, a pre-deployment audit framework for non-answ…
cs.CL2026
Comprehensive Evaluation of Large Language Model Responses: A Multi-Factor Scoring System
Yiming Gai, Junde Lu, Xuefei Huang
The remarkable performance of large language models (LLMs) in linguistic tasks underscores an urgent need for comprehensive evaluation of their response quality. Prevailing methods…
cs.IR2026
Modality Relevance is not Modality Utility: Post-hoc Selective Modality Escalation for Cost-Aware Multimodal RAG
Xue Li, Yiming Gai
Multimodal retrieval-augmented generation (RAG) grounds a generator in evidence drawn from heterogeneous modalities -- text, tables, and images. The dominant deployment choice is b…