Author

Qiongkai Xu

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#natural language process... Preprint Oct 2026

OLMo-Detect: A Multi-Stage, Confounder-Controlled Benchmark for Membership Inference on Large Language Models

Membership inference on large language models (LLMs) aims to determine whether a given text sample was included in an LLM's training data, without access to its training corpus. Despite recent progress, existing benchmarks suffer from three limitations: limited coverage of training stages, insufficient distributional a...

Tao-Quan Shi, Chao Xiang, Qiong-Kai Xu et al. · 0 citations

#natural language process... May 2026

Heterogeneous Dependency Graph-Guided Attentionfor Patent Representation Learning

The Patent Heterogeneous Attention-Guided Graph Encoder (PHAGE), which constructs a typed claim graph that distinguishes legal citations from technical relations, and fine-tunes the encoder using a dual-granularity contrastive objective that combines inter-patent taxonomy with intra-patent topology.

Yongmin Yoo, Qiongkai Xu, Zhangkai Wu et al. · arXiv.org · 0 citations