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相关论文: Learning-based Sketches for Frequency Estimation i…

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Sketches are a family of streaming algorithms widely used in the world of big data to perform fast, real-time analytics. A popular sketch type is Quantiles, which estimates the data distribution of a large input stream. We present…

数据结构与算法 · 计算机科学 2022-08-22 Shaked Elias-Zada , Arik Rinberg , Idit Keidar

Sketches are probabilistic data structures that can provide approximate results within mathematically proven error bounds while using orders of magnitude less memory than traditional approaches. They are tailored for streaming data analysis…

数据结构与算法 · 计算机科学 2019-03-05 Fatih Taşyaran , Kerem Yıldırır , Kamer Kaya , Mustafa Kemal Taş

Diffusion models have demonstrated remarkable performance in text-to-image synthesis, producing realistic and high resolution images that faithfully adhere to the corresponding text-prompts. Despite their great success, they still fall…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Ilias Mitsouras , Eleftherios Tsonis , Paraskevi Tzouveli , Athanasios Voulodimos

Linear sketches are fundamental tools in data stream analytics. They are notable for supporting both approximate frequency queries and heavy hitter detection with bounded trade-offs for error and memory. Importantly, on streams that contain…

密码学与安全 · 计算机科学 2025-12-10 Rayne Holland

Space-efficient streaming estimation of quantiles in massive datasets is a fundamental problem with numerous applications in data monitoring and analysis. While theoretical research led to optimal algorithms, such as the Greenwald-Khanna…

数据结构与算法 · 计算机科学 2025-09-12 Aleksander Łukasiewicz , Jakub Tětek , Pavel Veselý

As lovely as bunnies are, your sketched version would probably not do them justice (Fig.~\ref{fig:intro}). This paper recognises this very problem and studies sketch quality assessment for the first time -- letting you find these badly…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Lan Yang , Kaiyue Pang , Honggang Zhang , Yi-Zhe Song

Reasoning methods such as chain-of-thought prompting and self-consistency have shown immense potential to improve the accuracy of large language models across various reasoning tasks. However such methods involve generation of lengthy…

计算与语言 · 计算机科学 2025-10-30 Disha Sheshanarayana , Tanishka Magar

In recent years, sketch-based 3D shape retrieval has attracted growing attention. While many previous studies have focused on cross-modal matching between hand-drawn sketches and 3D shapes, the critical issue of how to handle low-quality…

计算机视觉与模式识别 · 计算机科学 2023-08-14 Yiyang Cai , Jiaming Lu , Jiewen Wang , Shuang Liang

Elastic-Sketch is a hash-based data structure for counting item's appearances in a data stream, and it has been empirically shown to achieve a better memory-accuracy trade-off compared to classical methods. This algorithm combines a heavy…

数据结构与算法 · 计算机科学 2026-03-27 Younes Ben Mazziane , Vinay Kumar B. R. , Othmane Marfoq

Demands are increasing to measure per-flow statistics in the data plane of high-speed switches. Measuring flows with exact counting is infeasible due to processing and memory constraints, but a sketch is a promising candidate for collecting…

网络与互联网体系结构 · 计算机科学 2021-11-05 SunYoung Kim , Changhun Jung , RhongHo Jang , David Mohaisen , DaeHun Nyang

Data sketches balance resource efficiency with controllable approximations for extracting features in high-volume, high-rate data. Two important points of interest are highlighted separately in recent works; namely, to (1) answer multiple…

数据结构与算法 · 计算机科学 2025-07-08 Martin Hilgendorf , Marina Papatriantafilou

A sketch is a probabilistic data structure used to record frequencies of items in a multi-set. Sketches are widely used in various fields, especially those that involve processing and storing data streams. In streaming applications with…

数据结构与算法 · 计算机科学 2017-02-08 Tong Yang , Lingtong Liu , Yibo Yan , Muhammad Shahzad , Yulong Shen , Xiaoming Li , Bin Cui , Gaogang Xie

Many dynamic applications are built upon large network infrastructures, such as social networks, communication networks, biological networks and the Web. Such applications create data that can be naturally modeled as graph streams, in which…

数据库 · 计算机科学 2011-12-01 Peixiang Zhao , Charu C. Aggarwal , Min Wang

We study sequential change-point detection procedures based on linear sketches of high-dimensional signal vectors using generalized likelihood ratio (GLR) statistics. The GLR statistics allow for an unknown post-change mean that represents…

机器学习 · 计算机科学 2018-05-01 Yang Cao , Andrew Thompson , Meng Wang , Yao Xie

Count-Min Sketch (CMS) is a memory-efficient data structure for estimating the frequency of elements in a multiset. Learned Count-Min Sketch (LCMS) enhances CMS with a machine learning model to reduce estimation error under the same memory…

机器学习 · 计算机科学 2025-12-16 Kyosuke Nishishita , Atsuki Sato , Yusuke Matsui

Leveraging the kernel trick in both the input and output spaces, surrogate kernel methods are a flexible and theoretically grounded solution to structured output prediction. If they provide state-of-the-art performance on complex data sets…

机器学习 · 统计学 2024-05-07 Tamim El Ahmad , Luc Brogat-Motte , Pierre Laforgue , Florence d'Alché-Buc

In-context learning (ICL) performance depends critically on which demonstrations are placed in the prompt, yet most existing selectors prioritize heuristic notions of relevance or diversity and provide limited insight into the coverage of a…

机器学习 · 计算机科学 2026-04-15 Jiayi Xin , Xiang Li , Evan Qiang , Weiqing He , Tianqi Shang , Weijie J. Su , Qi Long

This article considers "compressive learning," an approach to large-scale machine learning where datasets are massively compressed before learning (e.g., clustering, classification, or regression) is performed. In particular, a "sketch" is…

The sliding window model of computation captures scenarios in which data are continually arriving in the form of a stream, and only the most recent $w$ items are used for analysis. In this setting, an algorithm needs to accurately track…

密码学与安全 · 计算机科学 2024-06-13 Yiping Wang , Yanhao Wang , Cen Chen

We introduce a new neural network-based continual learning algorithm, dubbed as Uncertainty-regularized Continual Learning (UCL), which builds on traditional Bayesian online learning framework with variational inference. We focus on two…

机器学习 · 计算机科学 2019-11-15 Hongjoon Ahn , Sungmin Cha , Donggyu Lee , Taesup Moon