Skip to content

Author

Zhong-Yi Han

5 papers indexed here

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Sep 2026

A Dominant Supplier Slows Recursive Drift More Than It Steers It

This work retrain eight open models from their base weights on a shared pool of each other's text for five generations, varying the part written by one model, Phi-2, from an equal share to 90%.

Yang-Ze Liu, Zhong-Yi Han · 0 citations
#artificial intelligence Preprint Sep 2026

Useful to Whom? Sample Value Is Defined Only Relative to the Learner

What kind of data does a model need in order to learn? Coreset selection makes this question concrete: under a budget, keep the samples most useful for training. Easy-first and geometric coverage criteria can win in different budget regimes, separated by a crossover boundary. We ask whether this boundary is fixed by th...

Yang-Ze Liu, Xiao-Long Yin, Zhong-Yi Han · 0 citations
#artificial intelligence Preprint Sep 2026

Are Coreset Selection Methods Worth Their Cost?

An end-to-end benchmark that standardizes downstream training and charges selection and training to the same auditable wall-clock budget, and quantifies when selection does pay back through subset reuse, and document 9 correctness fixes to a widely used codebase.

Yang-Ze Liu, Zhong-Yi Han · 1 citation
#artificial intelligence Review Sep 2026

Break Step: Recursive Training Resonates with Replayed Sampling Noise

How fast does a language model degrade when trained on its own outputs? Theory traces it to gradually accumulating errors, while experiments report repeated phrases within ten generations. Under a fixed sampling seed in vLLM, the fast loss of lexical diversity comes from the sampler. When vLLM serves a batch from one s...

Yang-Ze Liu, Zhong-Yi Han · 0 citations
#artificial intelligence Preprint Sep 2026

The Oligarch Barely Steers Model Collapse in Multi-Model Ecosystems

AI-generated text is flowing back into the training corpora of the next generation of models. Recursive training on it drives model collapse, and recent work extends the setting to many models feeding one another -- but almost always with the market split evenly, while real generative AI is an oligopoly. Concentration...

Yang-Ze Liu, Zhong-Yi Han · 0 citations

We use cookies to run the site and, with your consent, for analytics and to show ads. See our Cookie Policy.