Qiuyi Zhang
3 papers in the PaperMetrix corpus
Papers by this author
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Using INC within Divide-and-Conquer Phylogeny Estimation - Datasets
2019
This repository include datasets that are studied with INC/INC-ML/INC-NJ in the paper `Using INC within Divide-and-Conquer Phylogeny Estimation' that was submitted to AICoB 2019. Each dataset has its own readme.txt that further describes the creation …
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Gradientless Descent: High-Dimensional Zeroth-Order Optimization
2019 · arXiv (Cornell University)
Zeroth-order optimization is the process of minimizing an objective $f(x)$, given oracle access to evaluations at adaptively chosen inputs $x$. In this paper, we present two simple yet powerful GradientLess Descent (GLD) algorithms that do …
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Beyond Worst-Case Dimensionality Reduction for Sparse Vectors
2025 · arXiv (Cornell University)
We study beyond worst-case dimensionality reduction for $s$-sparse vectors. Our work is divided into two parts, each focusing on a different facet of beyond worst-case analysis: We first consider average-case guarantees. A folklore upper bound …