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DBSCAN is a popular density-based clustering algorithm that has many different applications in practice. However, the running time of DBSCAN in high-dimensional space or general metric space ({\em e.g.,} clustering a set of texts by using…

数据结构与算法 · 计算机科学 2025-01-07 Guanlin Mo , Shihong Song , Hu Ding

Learning from imbalanced data is among the most challenging areas in contemporary machine learning. This becomes even more difficult when considered the context of big data that calls for dedicated architectures capable of high-performance…

机器学习 · 计算机科学 2022-11-16 William C. Sleeman , Bartosz Krawczyk

With the end of Moore's Law, there is a growing demand for rapid architectural innovations in modern processors, such as RISC-V custom extensions, to continue performance scaling. Program sampling is a crucial step in microprocessor design,…

硬件体系结构 · 计算机科学 2023-04-19 Yuanwei Fang , Zihao Liu , Yanheng Lu , Jiawei Liu , Jiajie Li , Yi Jin , Jian Chen , Yenkuang Chen , Hongzhong Zheng , Yuan Xie

To usher in the next round of client AI innovation, there is an urgent need to enable efficient, lossless inference of high-accuracy large language models (LLMs) and vision language models (VLMs), jointly referred to as xLMs, on client…

分布式、并行与集群计算 · 计算机科学 2026-04-30 Aditya Ukarande , Deep Shekhar , Marc Blackstein , Ram Rangan

We introduce aweSOM, an open-source Python package for machine learning (ML) clustering and classification, using a Self-organizing Maps (SOM) algorithm that incorporates CPU/GPU acceleration to accommodate large ($N > 10^6$, where $N$ is…

机器学习 · 计算机科学 2025-04-15 Trung Ha , Joonas Nättilä , Jordy Davelaar

Visual analytics is essential for studying large time series due to its ability to reveal trends, anomalies, and insights. DeepVATS is a tool that merges Deep Learning (Deep) with Visual Analytics (VA) for the analysis of large time series…

机器学习 · 计算机科学 2025-04-02 Inmaculada Santamaria-Valenzuela , Victor Rodriguez-Fernandez , David Camacho

Logs are crucial for analyzing large-scale software systems, offering insights into system health, performance, security threats, potential bugs, etc. However, their chaotic nature$\unicode{x2013}$characterized by sheer volume, lack of…

软件工程 · 计算机科学 2025-02-20 Dmytro Borysenkov , Adriano Vogel , Sören Henning , Esteban Perez-Wohlfeil

Although code generation for Convolution Neural Network (CNN) models has been extensively studied, performing efficient data slicing and parallelization for highly-constrai\-ned Multicore Neural Processor Units (NPUs) is still a challenging…

Submodular functions are a special class of set functions which naturally model the notion of representativeness, diversity, coverage etc. and have been shown to be computationally very efficient. A lot of past work has applied submodular…

机器学习 · 计算机科学 2022-02-24 Vishal Kaushal , Ganesh Ramakrishnan , Rishabh Iyer

We present a framework for optimizing prompts in vision-language models to elicit multimodal reasoning without model retraining. Using an evolutionary algorithm to guide prompt updates downstream of visual tasks, our approach improves upon…

计算与语言 · 计算机科学 2025-04-01 Sid Bharthulwar , John Rho , Katrina Brown

Adaptive sampling is a useful algorithmic tool for data summarization problems in the classical centralized setting, where the entire dataset is available to the single processor performing the computation. Adaptive sampling repeatedly…

数据结构与算法 · 计算机科学 2020-04-24 Sepideh Mahabadi , Ilya Razenshteyn , David P. Woodruff , Samson Zhou

DBSCAN has been widely used in density-based clustering algorithms. However, with the increasing demand for Multi-density clustering, previous traditional DSBCAN can not have good clustering results on Multi-density datasets. In order to…

数据库 · 计算机科学 2023-10-10 Ziqing Wang , Zhirong Ye , Yuyang Du , Yi Mao , Yanying Liu , Ziling Wu , Jun Wang

Time series augmentation is critical for training robust deep learning models, particularly in domains where labelled data is scarce and expensive to obtain. However, existing augmentation libraries for time series, mainly written in…

机器学习 · 计算机科学 2026-01-07 Wadie Skaf , Felix Kern , Aryamaan Basu Roy , Tejas Pradhan , Roman Kalkreuth , Holger Hoos

Large sample size brings the computation bottleneck for modern data analysis. Subsampling is one of efficient strategies to handle this problem. In previous studies, researchers make more fo- cus on subsampling with replacement (SSR) than…

机器学习 · 统计学 2015-11-24 Rong Zhu

Dimensionality reduction methods have found vast application as visualization tools in diverse areas of science. Although many different methods exist, their performance is often insufficient for providing quick insight into many…

Python's flexibility and ease of use come at the cost of performance inefficiencies, requiring developers to rely on profilers to optimize execution. SCALENE, a high-performance CPU, GPU, and memory profiler, provides fine-grained insights…

编程语言 · 计算机科学 2025-02-17 Saem Hasan , Sanju Basak

We present \textbf{Upsample Anything}, a lightweight test-time optimization (TTO) framework that restores low-resolution features to high-resolution, pixel-wise outputs without any training. Although Vision Foundation Models demonstrate…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Minseok Seo , Mark Hamilton , Changick Kim

We present an unsupervised data processing workflow that is specifically designed to obtain a fast conformational clustering of long molecular dynamics simulation trajectories. In this approach we combine two dimensionality reduction…

化学物理 · 物理学 2023-08-09 Simon Hunkler , Kay Diederichs , Oleksandra Kukharenko , Christine Peter

The dramatic growth of big datasets presents a new challenge to data storage and analysis. Data reduction, or subsampling, that extracts useful information from datasets is a crucial step in big data analysis. We propose an orthogonal…

统计方法学 · 统计学 2021-06-01 Lin Wang , Jake Elmstedt , Weng Kee Wong , Hongquan Xu

In the context of paid research studies and clinical trials, budget considerations often require patient sampling from available populations which comes with inherent constraints. We introduce the R package CDsampling, which is the first to…

统计计算 · 统计学 2025-09-30 Yifei Huang , Liping Tong , Jie Yang