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arXiv · 2603.23561

The No-Clash Teaching Dimension is Bounded by VC Dimension

Jiahua Liu·Benchong Li
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Abstract

In the realm of machine learning theory, to prevent unnatural coding schemes between teacher and learner, No-Clash Teaching Dimension was introduced as provably optimal complexity measure for collusion-free teaching. However, whether No-Clash Teaching Dimension is upper-bounded by Vapnik-Chervonenkis dimension remains unknown. In this paper, for any finite concept class, we construct fragments of size equals to its Vapnik-Chervonenkis dimension which identify concepts through an ordered compression scheme. Naturally, these fragments are used as teaching sets, one can easily see that they satisfy the non-clashing condition, i.e., this open question is resolved for finite concept classes.

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Jiahua Liu, Benchong Li. 2026-03-24. The No-Clash Teaching Dimension is Bounded by VC Dimension. https://arxiv.org/abs/2603.23561

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