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Qianchuan Zhao

Tsinghua University

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#artificial intelligence Preprint Oct 2026

Shared Low-rank Basis Factorization for Data-free Mixture-of-Experts Compression

Mixture-of-Experts (MoE) large language models decouple capacity from compute through sparse routing, but their large parameter count creates storage and serving challenges. We analyze three MoE compression families: expert pruning, expert merging, and weight reconstruction, and derive structural error bounds showing t...

Tian-Xiao Cao, Jia-He Shao, Yu-Ning Qiu et al. · 0 citations
Preprint Sep 2026

Distilling Datasets into Shallow Circuits for Quantum Machine Learning

In quantum machine learning, training a quantum model requires each sample to be prepared as a quantum state by a loading circuit that must be re-executed for every shot at every training step. The total burden therefore scales with both the number of samples and the cost of preparation. Existing approaches reduce the...

Guang Lin, Qianchuan Zhao · 0 citations
Sep 2026

A Structure-Revealing Tensor Network Paradigm and Its Applications.

This work proposes a novel structure-revealing TN paradigm, termed SVD-inspired TN decomposition (SVDinsTN), which enables the formulation of an energy function that simultaneously considers representation error and TN structure complexity, facilitating the joint optimization of data representation and the identificati...

Yu-Bang Zheng, Xi-Le Zhao, Heng-Chao Li et al. · 0 citations
#machine learning Preprint Sep 2026

QuanVI: Score-based Variational Inference via Quantum Maximally Mixed States

Score-based variational inference (VI) provides an alternative to Kullback--Leibler (KL)-based VI by minimizing the Fisher divergence between the variational distribution and the target. A prior score-VI approach formulates this optimization as an eigenvalue problem, with the variational distribution constructed from l...

Yu Cong, Ze-Rui Tao, Chao Li et al. · 1 citation
#machine learning Preprint Aug 2026

Partially Observed Sparse Graphs: The Unknown Sampling Rate is a Tail Index

A large graph is often available only in part: a crawl stopped by its budget, a panel, a partial dump. When the sampled fraction $s$ is known by design the total edge count follows from $\hat e=e_s/s^2$ and no model is needed. We treat the case where $s$ is unknown and the population size is known. Our main result is a...

Jian Xu, Delu Zeng, John W. Paisley et al. · 0 citations
Open access Jul 2026

Effect of opioid-free anesthesia on postoperative recovery in elderly patients undergoing laparoscopic abdominal surgery: a randomized controlled trial

Background Opioid-free anesthesia (OFA) has been proposed to reduce opioid-related adverse effects, although its impact on overall postoperative recovery remains uncertain. We evaluated whether OFA improves postoperative quality of recovery compared with opioid-based anesthesia (OA) in elderly patients undergoing lapar...

Qianchuan Zhao, Yang Wang, Fujian Huang et al. · 0 citations
Aug 2026

Bayesian adaptive tensor ring decomposition with automatic model selection.

A robust non-parametric Bayesian method known as the Bayesian adaptive tensor ring decomposition (BATR) method, which accomplishes an adaptive low tensor ring (TR) rank model by incorporating a more advanced generalized hyperbolic (GH) prior into the probabilistic framework, thereby facilitating automatic TR rank deter...

Zhenhao Huang, Guoxu Zhou, Yuning Qiu et al. · 0 citations
Preprint Jul 2026

Entanglement as a Structural Complexity Axis: A PAC-Bayesian View of Generalization in Quantum Policies and Value Functions

A PAC-Bayesian account in which quantum policy design is reframe around an entanglement--generalization trade-off rather than expressivity alone is given, where entangled circuits consistently generalize worse than non-entangled circuits of equal parameter count.

Jian Xu, Delu Zeng, John W. Paisley et al. · 0 citations
Preprint Jul 2026

When Can You Debias an LLM Judge? Identifiability Limits, a Test, and Designs for Top-k Ranking

The contribution is accordingly not a better estimator but a characterization of \emph{when prior-based correction is justified}, plus designs that supply the missing information when it is not, plus designs that supply the missing information when it is not.

Jian Xu, Delu Zeng, John W. Paisley et al. · 0 citations

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