Chengzhengxu Li
Chengzhengxu Li has 2 papers in our library, in 2024–2026; often with Chao Shen, Xiaoming Liu, Zhaohan Zhang.
OpenAlex · h-index 2 · 26 works · 17 citations OpenAlex, 2026-10-14
📄 2 works in our library · 🔗 Cited 14 times in our library · ⭐ Paper Stars ranking: #9142
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📚 Shelves 4The field of science this work belongs to (OpenAlex fields).Artificial Intelligence · 2 worksArts and Humanities · 2 worksComputer Science · 2 worksLanguage and Linguistics · 2 works
Works by year
2020s
Papers
- Does DetectGPT Fully Utilize Perturbation? Bridging Selective Perturbation to Fine-tuned Contrastive Learning Detector would be Better (2024 · 16 citations)
The paper tackles detection of machine-generated text (MGT) and addresses three weaknesses of DetectGPT. Its random perturbations can inject noise. It reduces perturbation to a single probability-difference score. Its threshold-based logit regression generalizes poorly and fails on single or small-batch inputs. The… - Confidence Should Be Calibrated More Than One Turn Deep (2026 · 3 citations)
Research on LLM confidence calibration has mostly looked at single-turn question answering. Real deployments, however, involve dialogues where users push back. The authors define multi-turn calibration : confidence must match accuracy at every turn, given the conversation history. They introduce ECE@T , which…
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