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相关论文: A Propound Method for the Improvement of Cluster Q…

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With contributions from the open-source community, a vast amount of instruction tuning (IT) data has emerged. Given the significant resource allocation required for training and evaluating models, it is advantageous to have an efficient…

计算与语言 · 计算机科学 2024-11-19 Yuan Ge , Yilun Liu , Chi Hu , Weibin Meng , Shimin Tao , Xiaofeng Zhao , Hongxia Ma , Li Zhang , Boxing Chen , Hao Yang , Bei Li , Tong Xiao , Jingbo Zhu

This paper introduces k-splits, an improved hierarchical algorithm based on k-means to cluster data without prior knowledge of the number of clusters. K-splits starts from a small number of clusters and uses the most significant data…

计算机视觉与模式识别 · 计算机科学 2022-05-25 Seyed Omid Mohammadi , Ahmad Kalhor , Hossein Bodaghi

Recommender Systems are inevitable to personalize user's experiences on the Internet. They are using different approaches to recommend the Top-K items to users according to their preferences. Nowadays recommender systems have become one of…

信息检索 · 计算机科学 2021-05-26 Mostafa Khalaji , Chitra Dadkhah , Joobin Gharibshah

Large-scale multi-layer networks with large numbers of nodes, edges, and layers arise across various domains, which poses a great computational challenge for the downstream analysis. In this paper, we develop an efficient randomized…

统计计算 · 统计学 2025-01-10 Wenqing Su , Xiao Guo , Xiangyu Chang , Ying Yang

This paper introduces a novel K-means clustering algorithm, an advancement on the conventional Big-means methodology. The proposed method efficiently integrates parallel processing, stochastic sampling, and competitive optimization to…

机器学习 · 计算机科学 2024-03-28 Rustam Mussabayev , Ravil Mussabayev

Clustering is a fundamental problem in machine learning where distance-based approaches have dominated the field for many decades. This set of problems is often tackled by partitioning the data into K clusters where the number of clusters…

Traditional Retrieval-Augmented Generation (RAG) systems employ brute-force inner product search to retrieve the top-k most similar documents, then combined with the user query and passed to a language model. This allows the model to access…

信息检索 · 计算机科学 2025-06-17 Chia-Heng Yu , Yen-Lung Tsai

We present methods for k-means clustering on a stream with a focus on providing fast responses to clustering queries. Compared to the current state-of-the-art, our methods provide substantial improvement in the query time for cluster…

数据结构与算法 · 计算机科学 2018-12-10 Yu Zhang , Kanat Tangwongsan , Srikanta Tirthapura

Clustering is a fundamental problem in many scientific applications. Standard methods such as $k$-means, Gaussian mixture models, and hierarchical clustering, however, are beset by local minima, which are sometimes drastically suboptimal.…

机器学习 · 统计学 2015-12-14 Eric C. Chi , Kenneth Lange

Clustering is often used for discovering structure in data. Clustering systems differ in the objective function used to evaluate clustering quality and the control strategy used to search the space of clusterings. Ideally, the search…

人工智能 · 计算机科学 2014-11-17 D. Fisher

Quantum Clustering is a powerful method to detect clusters in data with mixed density. However, it is very sensitive to a length parameter that is inherent to the Schr\"odinger equation. In addition, linking data points into clusters…

Text clustering holds significant value across various domains due to its ability to identify patterns and group related information. Current approaches which rely heavily on a computed similarity measure between documents are often limited…

信息检索 · 计算机科学 2025-04-09 Laurence Hirsch , Robin Hirsch , Bayode Ogunleye

Clustering is a long-standing research problem and a fundamental tool in AI and data analysis. The traditional k-center problem, a fundamental theoretical challenge in clustering, has a best possible approximation ratio of 2, and any…

机器学习 · 计算机科学 2026-04-28 Chaoqi Jia , Longkun Guo , Kewen Liao , Zhigang Lu , Chao Chen , Jason Xue

Clustering is an essential data mining tool for analyzing and grouping similar objects. In big data applications, however, many clustering algorithms are infeasible due to their high memory requirements and/or unfavorable runtime…

数据结构与算法 · 计算机科学 2026-01-27 Gregor Ulm , Simon Smith , Adrian Nilsson , Emil Gustavsson , Mats Jirstrand

Clustering points in a vector space or nodes in a graph is a ubiquitous primitive in statistical data analysis, and it is commonly used for exploratory data analysis. In practice, it is often of interest to "refine" or "improve" a given…

机器学习 · 计算机科学 2022-02-03 K. Fountoulakis , M. Liu , D. F. Gleich , M. W. Mahoney

Recommender systems are one of the most applied methods in machine learning and find applications in many areas, ranging from economics to the Internet of things. This article provides a general overview of modern approaches to recommender…

信息检索 · 计算机科学 2021-09-28 Irina Beregovskaya , Mikhail Koroteev

Iterative refinement is particularly popular for numerical solution of linear systems of equations. We extend it to Low Rank Approximation of a matrix (LRA) and observe close link of the resulting algorithm to oversampling techniques,…

数值分析 · 数学 2024-11-28 Victor Y. Pan , Qi Luan , Soo Go

Using a trimming approach, we investigate a k-means type method based on Bregman divergences for clustering data possibly corrupted with clutter noise. The main interest of Bregman divergences is that the standard Lloyd algorithm adapts to…

统计理论 · 数学 2020-09-10 Aurélie Fischer , Clément Levrard , Claire Brécheteau

The amount of data available in the world is growing faster than our ability to deal with it. However, if we take advantage of the internal \emph{structure}, data may become much smaller for machine learning purposes. In this paper we focus…

机器学习 · 计算机科学 2016-11-07 Zeyuan Allen-Zhu , Yang Yuan , Karthik Sridharan

For fine-grained categorization tasks, videos could serve as a better source than static images as videos have a higher chance of containing discriminative patterns. Nevertheless, a video sequence could also contain a lot of redundant and…

计算机视觉与模式识别 · 计算机科学 2018-10-29 Chen Zhu , Xiao Tan , Feng Zhou , Xiao Liu , Kaiyu Yue , Errui Ding , Yi Ma