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Han-Chen Wang

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#artificial intelligence Preprint Oct 2026

Correspondences as Decisions: JevNexus for Decision-Centric Schema Matching

Schema matching increasingly uses generative language models to rerank retrieved column candidates, although the underlying task is a bounded correspondence decision. We present JevNexus, which combines typed pairwise decisions with schema/instance evidence and invokes listwise refinement only when the evidence disagre...

Run-Ze Li, Han-Chen Wang, Ying Zhang et al. · 0 citations
#machine learning Preprint Sep 2026

HYDRA: Proactive Android Malware Drift Adaptation via Hierarchical Graph Contrastive Learning

Concept drift, driven by the rapid evolution of Android malware, severely degrades the performance of machine learning detectors. Current adaptation strategies are often reactive, responding only after performance has dropped and imposing a significant manual annotation burden, or they are proactive but rely on unstabl...

Han Chen, Han-Chen Wang, Hong-Mei Chen et al. · 0 citations
#artificial intelligence Preprint Sep 2026

ISO-RAG: Isoperimetric Noise Control for Retrieval-Augmented Generation

ISO-RAG outperforms state-of-the-art baselines by average absolute gains of 10.0% in retrieval recall and 4.3% in downstream exact match, achieving a superior accuracy-efficiency trade-off by fundamentally eliminating the latency bottleneck of global traversals.

Si-Yuan Zhang, Hanchen Wang, Dong Wen et al. · 0 citations

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