Skip to content

Author

Kaizhen Tan

We have 9 of 18 papers

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 Aug 2026

Vision Models Predict Urban Scene Appraisal with Limited Neural Alignment

Pretrained vision embeddings are increasingly used as general-purpose representations for modelling how people appraise urban scenes, and are validated almost entirely by how well they predict human ratings. High predictive accuracy does not establish that these embeddings organise scenes as human perception does. We t...

Kai-Zhen Tan, Yuan-Tao Deng · 0 citations
Preprint Aug 2026

Renaming or Tightness: Enforcing Disjunctive Information Flow Policies

This work builds the flow-sensitive type system family that the quantale calls for, and shows that the object which makes such families useful, the universal type object from which every member specialises, splits in two, with a consequence for enforcement.

Xin Xu, Si-Ru Tao, Kai-Zhen Tan · 0 citations
Preprint Sep 2026

Teaching Vision-Language Models to Use the Scale They Are Given: Label-Free Equivariance Training for Metric Physical Reasoning

EquiSD exploits an exact physical symmetry to provide label-free supervision for improving metric grounding in vision-language models and generalizes to unseen world scales and transfers without adaptation to real QuantiPhy videos, where accuracy increases by 6.4 points.

Kai-Zhen Tan, Yang Feng, He-Qing Du et al. · 0 citations
#small language model Preprint Sep 2026

You Cannot Photograph the Same Street Twice: Reliability Limits in Vision-Language Measurement of Urban Change

Vision-language models are increasingly used to measure urban change from repeated street-level imagery, but their longitudinal reliability is not well understood. We test how much a perception score can change when the street itself does not undergo substantial redevelopment. Using 4,648 consecutive-epoch image pairs...

Kaizhen Tan · 0 citations
Jul 2026

How Many Bits Can an Adapter Write? Measuring the Capacity and Memorization of Parameter-Efficient Fine-Tuning

Extending compression-based memorization analysis to the frozen-base setting, this work measures directly, in bits, how much a low-rank adapter writes into a model it never changes, finding that the answer is both smaller than full fine-tuning and less lawful than parameter counting would predict.

Kaizhen Tan, Heqing Du, Yang Feng · 0 citations
#robotics Jul 2026

What Can Latent World Models Know? Physical Parameter Identifiability in Multimodal Predictive Representations

A central premise of latent world models is that predicting the future forces a representation to internalize the physics of its environment. Which physical quantities does a trained latent actually contain, and what decides this? We answer with controlled interventions in POKEWORLD, an interactive environment whose vi...

Kai-Zhen Tan, Xin Xu, Siru Tao et al. · 2 citations
Jul 2026

Collusion with Competitive Marginals: Price-Level Audits Are Blind by Construction

Empirical work on algorithmic collusion asks one question of the data: are prices supracompetitive? We show this can be answered"no"by a conspiracy that is nonetheless profitable. Consider bidding agents that couple only through the joint distribution of their unexplained bid components, leaving every agent's own bid l...

Xin Xu, Cheng-Rui Wu, Jiayu Lu et al. · 1 citation

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