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Cluster analysis has attracted more and more attention in the field of machine learning and data mining. Numerous clustering algorithms have been proposed and are being developed due to diverse theories and various requirements of emerging…

机器学习 · 计算机科学 2016-01-18 Jian Yu , Zongben Xu

Clustering is the technique to partition data according to their characteristics. Data that are similar in nature belong to the same cluster [1]. There are two types of evaluation methods to evaluate clustering quality. One is an external…

机器学习 · 计算机科学 2024-09-05 Anupriya Vysala , Joseph Gomes

A recurrent neural network that has been trained to separately model the language of several documents by unknown authors is used to measure similarity between the documents. It is able to find clues of common authorship even when the…

计算与语言 · 计算机科学 2016-08-17 Douglas Bagnall

We study the problem of clustering sequences of unlabeled point sets taken from a common metric space. Such scenarios arise naturally in applications where a system or process is observed in distinct time intervals, such as biological…

数据结构与算法 · 计算机科学 2017-10-17 Tamal K. Dey , Alfred Rossi , Anastasios Sidiropoulos

We propose a simple and efficient clustering method for high-dimensional data with a large number of clusters. Our algorithm achieves high-performance by evaluating distances of datapoints with a subset of the cluster centres. Our…

机器学习 · 计算机科学 2022-03-30 Georgios Exarchakis , Omar Oubari , Gregor Lenz

Spectral clustering is one of the most prominent clustering approaches. The distance-based similarity is the most widely used method for spectral clustering. However, people have already noticed that this is not suitable for multi-scale…

机器学习 · 计算机科学 2020-09-11 Hengrui Wang , Yubo Zhang , Mingzhi Chen , Tong Yang

We investigate the problem of segmenting unlabeled speech into word-like units and clustering these to create a lexicon. Prior work can be categorized into two frameworks. Bottom-up methods first determine boundaries and then cluster the…

音频与语音处理 · 电气工程与系统科学 2025-07-29 Simon Malan , Benjamin van Niekerk , Herman Kamper

The area of constrained clustering has been extensively explored by researchers and used by practitioners. Constrained clustering formulations exist for popular algorithms such as k-means, mixture models, and spectral clustering but have…

机器学习 · 计算机科学 2019-12-20 Hongjing Zhang , Sugato Basu , Ian Davidson

Clustering is a fundamental tool in data mining. It partitions points into groups (clusters) and may be used to make decisions for each point based on its group. However, this process may harm protected (minority) classes if the clustering…

数据结构与算法 · 计算机科学 2018-11-27 Ioana O. Bercea , Martin Groß , Samir Khuller , Aounon Kumar , Clemens Rösner , Daniel R. Schmidt , Melanie Schmidt

This work introduces a benchmark assessing the performance of clustering German text embeddings in different domains. This benchmark is driven by the increasing use of clustering neural text embeddings in tasks that require the grouping of…

计算与语言 · 计算机科学 2024-01-08 Silvan Wehrli , Bert Arnrich , Christopher Irrgang

We consider the clustering aggregation problem in which we are given a set of clusterings and want to find an aggregated clustering which minimizes the sum of mismatches to the input clusterings. In the binary case (each clustering is a…

计算复杂性 · 计算机科学 2023-11-10 Jiehua Chen , Danny Hermelin , Manuel Sorge

We compare the performance of different clustering algorithms applied to the task of unsupervised text categorization. We consider agglomerative clustering algorithms, principal direction divisive partitioning and (for the first time)…

无序系统与神经网络 · 物理学 2007-05-23 D. Volk , M. G. Stepanov

We address the problem of federated learning (FL) where users are distributed and partitioned into clusters. This setup captures settings where different groups of users have their own objectives (learning tasks) but by aggregating their…

机器学习 · 统计学 2021-06-10 Avishek Ghosh , Jichan Chung , Dong Yin , Kannan Ramchandran

Biclustering involves the simultaneous clustering of objects and their attributes, thus defining local two-way clustering models. Recently, efficient algorithms were conceived to enumerate all biclusters in real-valued datasets. In this…

机器学习 · 计算机科学 2015-06-04 Saullo Haniell Galvão de Oliveira , Rosana Veroneze , Fernando José Von Zuben

Density-based clustering aims to find groups of similar objects (i.e., clusters) in a given dataset. Applications include, e.g., process mining and anomaly detection. It comes with two user parameters ({\epsilon}, MinPts) that determine the…

We consider the problem of learning overcomplete dictionaries in the context of sparse coding, where each sample selects a sparse subset of dictionary elements. Our main result is a strategy to approximately recover the unknown dictionary…

机器学习 · 统计学 2014-07-08 Alekh Agarwal , Animashree Anandkumar , Praneeth Netrapalli

Data clustering is the process of identifying natural groupings or clusters within multidimensional data based on some similarity measure. Clustering is a fundamental process in many different disciplines. Hence, researchers from different…

机器学习 · 计算机科学 2014-08-26 Sibei Yang , Liangde Tao , Bingchen Gong

Fast and high quality document clustering is an important task in organizing information, search engine results obtaining from user query, enhancing web crawling and information retrieval. With the large amount of data available and with a…

信息检索 · 计算机科学 2010-03-11 Alok Ranjan , Harish Verma , Eatesh Kandpal , Joydip Dhar

The Web Based File Clustering and Indexing for Mindoro State University aim to organize data circulated over the Web into groups or collections to facilitate data availability and access and at the same time meet user preferences. The main…

信息检索 · 计算机科学 2022-02-15 Christie A. Luzon , Luisito Lolong Lacatan , Harold Y. Bangalisan , Jayvee M. Osapdin

Text clustering is a fundamental task in natural language processing, yet traditional clustering algorithms with pre-trained embeddings often struggle in domain-specific contexts without costly fine-tuning. Large language models (LLMs)…

计算与语言 · 计算机科学 2025-12-05 Yiming Xu , Yuan Yuan , Vijay Viswanathan , Graham Neubig