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🔍 xiaomo jiang 📂 Computer Science
Showing 188 results for "xiaomo jiang" in Computer Science
Computer Science Preprint PDF DOI

Line Segment Clipping using Quadrilateral Concavity and Convexity

Bimal Kumar Ray · 2026

This paper proposes an algorithm for clipping line segment against an axis-aligned rectangular window. The conventional algorithms for line segment clipping treat the clipping boundary and/or the line…

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Computer Science Preprint PDF DOI

Near-Optimal Constructive Bounds for $\ell_2$ Prefix Discrepancy and Steinitz Problems via Affine Spectral Independence

Kunal Dutta, Agastya Vibhuti Jha, Haotian Jiang · 2026

A classical result of Steinitz from 1913 \cite{Ste13}, answering an earlier question of Riemann and L\'evy (e.g., \cite{Lev05}), states that for any norm $\|\cdot\|$ in $\mathbb{R}^d$ and any set of v…

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Computer Science Preprint PDF DOI

ReRec: Reasoning-Augmented LLM-based Recommendation Assistant via Reinforcement Fine-tuning

Jiani Huang, Shijie Wang, Liangbo Ning, Wenqi Fan, Qing Li · 2026

With the rise of LLMs, there is an increasing need for intelligent recommendation assistants that can handle complex queries and provide personalized, reasoning-driven recommendations. LLM-based recom…

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Computer Science Preprint PDF DOI

VulnAgent-X: A Layered Agentic Framework for Repository-Level Vulnerability Detection

Renwei Meng, Haoyi Wu, Jingming Wang, Haoyan Bai · 2026

Software vulnerability detection is critical in software en- gineering as security flaws arise from complex interactions across code structure, repository context, and runtime conditions. Existing met…

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Computer Science Preprint PDF DOI

Efficient Parallel $(\Delta+1)$-Edge-Coloring

Michael Elkin, Ariel Khuzman · 2026

We study the $(\Delta+1)$-edge-coloring problem in the parallel $\left(\mathrm{PRAM}\right)$ model of computation. The celebrated Vizing's theorem [Viz64] states that every simple graph $G = (V,E)$ ca…

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Computer Science Preprint PDF DOI

Intercultural Communication Strategies of a Technology Brand: A Comparative Quantitative Analysis of Xiaomi's Digital Marketing in China and Russia

Artem Novobritskii · 2026

In the 21st century, the era of globalization, consumers are dispersed across the globe, and brands compete for their attention and loyalty, largely within the digital realm. This reality elevates the…

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Computer Science Preprint PDF DOI

Weighted Fourier Factorizations: Optimal Gaussian Noise for Differentially Private Marginal and Product Queries

Christian Janos Lebeda, Aleksandar Nikolov, Haohua Tang · 2025

We revisit the task of releasing marginal queries under differential privacy with additive (correlated) Gaussian noise. We first give a construction for answering arbitrary workloads of weighted margi…

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Computer Science Preprint PDF DOI

Learning to Control Physically-simulated 3D Characters via Generating and Mimicking 2D Motions

Jianan Li, Xiao Chen, Tao Huang, Tien-Tsin Wong · 2025

Video data is more cost-effective than motion capture data for learning 3D character motion controllers, yet synthesizing realistic and diverse behaviors directly from videos remains challenging. Prev…

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Computer Science Preprint PDF DOI

Constructions of block MDS LDPC codes from punctured circulant matrices

Hongwei Zhu, Xuantai Wu, Jingjie Lv, Qinshan Zhang, Shu-Tao Xia · 2025

Low density parity check (LDPC) codes, initially discovered by Gallager, exhibit excellent performance in iterative decoding, approaching the Shannon limit. MDS array codes, with favorable algebraic s…

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Computer Science Preprint PDF DOI

Real-World Performance Evaluations of Low-Band 5G NR/4G LTE 4x4 MIMO on Commercial Smartphones

Pasapong Wongprasert, Kasidis Arunruangsirilert, Jiro Katto · 2025

All 3GPP-compliant commercial 5G New Radio (NR)-capable UEs on the market are equipped with 4x4 MIMO support for Mid-Band frequencies (>1.7 GHz) and above, enabling up to rank 4 MIMO transmission. Thi…

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Computer Science Preprint PDF DOI

EGG-SR: Embedding Symbolic Equivalence into Symbolic Regression via Equality Graph

Nan Jiang, Ziyi Wang, Yexiang Xue · 2025

Symbolic regression seeks to uncover physical laws from experimental data by searching for closed-form expressions, which is an important task in AI-driven scientific discovery. Yet the exponential gr…

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Computer Science Preprint PDF DOI

Streaming Max-Cut in General Metrics

Shaofeng H.-C. Jiang, Pan Peng, Haoze Wang · 2025

Max-Cut is a fundamental combinatorial optimization problem that has been studied in various computational settings. We initiate the study of its streaming complexity in \emph{general metric spaces} w…

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Computer Science Preprint PDF DOI

The Computational Complexity of Almost Stable Clustering with Penalties

Kamyar Khodamoradi, Farnam Mansouri, Sandra Zilles · 2025

We investigate the complexity of stable (or perturbation-resilient) instances of $\mathrm{k-M\small{EANS}}$ and $\mathrm{k-M\small{EDIAN}}$ clustering problems in metrics with small doubling dimension…

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Computer Science Preprint PDF DOI

Sublinear Time Quantum Sensitivity Sampling

Zhao Song, David P. Woodruff, Lichen Zhang · 2025

We present a unified framework for quantum sensitivity sampling, extending the advantages of quantum computing to a broad class of classical approximation problems. Our unified framework provides a st…

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Computer Science Preprint PDF DOI

MiDashengLM: Efficient Audio Understanding with General Audio Captions

Heinrich Dinkel, Gang Li, Jizhong Liu, Jian Luan, Yadong Niu, Xingwei Sun, Tianzi Wang, Qiyang Xiao, Junbo Zhang, Jiahao Zhou · 2025

Current approaches for large audio language models (LALMs) often rely on closed data sources or proprietary models, limiting their generalization and accessibility. This paper introduces MiDashengLM, …

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Computer Science Preprint PDF DOI

OmniBench-RAG: A Multi-Domain Evaluation Platform for Retrieval-Augmented Generation Tools

Jiaxuan Liang, Shide Zhou, Kailong Wang · 2025

While Retrieval Augmented Generation (RAG) is now widely adopted to enhance LLMs, evaluating its true performance benefits in a reproducible and interpretable way remains a major hurdle. Existing meth…

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Computer Science Preprint PDF DOI

An Efficient Massively Parallel Constant-Factor Approximation Algorithm for the $k$-Means Problem

Vincent Cohen-Addad, Fabian Kuhn, Zahra Parsaeian · 2025

In this paper, we present an efficient massively parallel approximation algorithm for the $k$-means problem. Specifically, we provide an MPC algorithm that computes a constant-factor approximation to …

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Computer Science Preprint PDF DOI

Computational-Statistical Tradeoffs from NP-hardness

Guy Blanc, Caleb Koch, Carmen Strassle, Li-Yang Tan · 2025

A central question in computer science and statistics is whether efficient algorithms can achieve the information-theoretic limits of statistical problems. Many computational-statistical tradeoffs hav…

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Computer Science Preprint PDF DOI

On Tight Robust Coresets for $k$-Medians Clustering

Lingxiao Huang, Zhenyu Jiang, Yi Li, Xuan Wu · 2025

This paper considers coresets for the robust $k$-medians problem with $m$ outliers, and new constructions in various metric spaces are obtained. Specifically, for metric spaces with a bounded VC or do…

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Computer Science Preprint PDF DOI

Fully Dynamic Euclidean k-Means

Sayan Bhattacharya, Martin Costa, Ermiya Farokhnejad, Shaofeng H.-C. Jiang, Yaonan Jin, Jianing Lou · 2025

We consider the Euclidean $k$-means clustering problem in a dynamic setting, where we have to explicitly maintain a solution (a set of $k$ centers) $S \subseteq \mathbb{R}^d$ subject to point insertio…

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