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Stochastic neighbor embedding (SNE) methods $t$-SNE, UMAP are two most popular dimensionality reduction methods for data visualization. Contrastive learning, especially self-supervised contrastive learning (SSCL), has showed great success…

机器学习 · 计算机科学 2023-09-18 Yi Zhang

We present a new method GTSNE to visualize high-dimensional data points in the two dimensional map. The technique is a variation of t-SNE that produces better visualizations by capturing both the local neighborhood structure and the macro…

机器学习 · 计算机科学 2021-08-04 Songting Shi

This paper presents a new insight into improving the performance of Stochastic Neighbour Embedding (t-SNE) by using Isolation kernel instead of Gaussian kernel. Isolation kernel outperforms Gaussian kernel in two aspects. First, the use of…

机器学习 · 计算机科学 2024-01-30 Ye Zhu , Kai Ming Ting

The paper presents an O(N log N)-implementation of t-SNE -- an embedding technique that is commonly used for the visualization of high-dimensional data in scatter plots and that normally runs in O(N^2). The new implementation uses…

机器学习 · 计算机科学 2013-03-11 Laurens van der Maaten

Multidimensional scaling is a statistical process that aims to embed high dimensional data into a lower-dimensional space; this process is often used for the purpose of data visualisation. Common multidimensional scaling algorithms tend to…

机器学习 · 计算机科学 2022-02-25 Pierre Lambert , Cyril de Bodt , Michel Verleysen , John Lee

Unsupervised machine learning has recently gained much attention in the field of molecular dynamics (MD). Particularly, dimensionality reduction techniques have been regularly employed to analyze large volumes of high-dimensional MD data to…

化学物理 · 物理学 2025-05-23 Patryk Tajs , Mateusz Skarupski , Jakub Rydzewski

In contrast to classical techniques for exploratory analysis of high-dimensional data sets, such as principal component analysis (PCA), neighbor embedding (NE) techniques tend to better preserve the local structure/topology of…

机器学习 · 统计学 2022-09-07 Roman Josef Rainer , Michael Mayr , Johannes Himmelbauer , Ramin Nikzad-Langerodi

Hyperspectral Imagery (and Remote Sensing in general) captured from UAVs or satellites are highly voluminous in nature due to the large spatial extent and wavelengths captured by them. Since analyzing these images requires a huge amount of…

图像与视频处理 · 电气工程与系统科学 2020-05-12 Megh Shukla , Biplab Banerjee , Krishna Mohan Buddhiraju

The recent advancements in computational power and machine learning algorithms have led to vast improvements in manifold areas of research. Especially in finance, the application of machine learning enables both researchers and…

统计金融 · 定量金融 2020-05-21 Sven Husmann , Antoniya Shivarova , Rick Steinert

We consider the mobile localization problem in future millimeter-wave wireless networks with distributed Base Stations (BSs) based on multi-antenna channel state information (CSI). For this problem, we propose a Semi-supervised tdistributed…

机器学习 · 计算机科学 2021-11-29 Junquan Deng , Wei Shi , Jian Hu , Xianlong Jiao

The central goal of this paper is to establish two commonly available dimensionality reduction (DR) methods i.e. t-distributed Stochastic Neighbor Embedding (t-SNE) and Multidimensional Scaling (MDS) in Matlab and to observe their…

机器学习 · 计算机科学 2020-11-19 Shadman Sakib , Md. Abu Bakr Siddique , Md. Abdur Rahman

We employ several unsupervised machine learning techniques, including autoencoders, random trees embedding, and t-distributed stochastic neighboring ensemble (t-SNE), to reduce the dimensionality of, and therefore classify, raw (auxiliary)…

强关联电子 · 物理学 2018-01-17 Kelvin Ch'ng , Nick Vazquez , Ehsan Khatami

The optimization of electric machines at multiple operating points is crucial for applications that require frequent changes on speeds and loads, such as the electric vehicles, to strive for the machine optimal performance across the entire…

机器学习 · 计算机科学 2019-11-05 Shen Zhang , Shibo Zhang , Sufei Li , Liang Du , Thomas G. Habetler

Dimensional data reduction methods are fundamental to explore and visualize large data sets. Basic requirements for unsupervised data exploration are simplicity, flexibility and scalability. However, current methods show complex…

机器学习 · 计算机科学 2021-12-03 Joan Garriga , Frederic Bartumeus

Dimensionality reduction is crucial both for visualization and preprocessing high dimensional data for machine learning. We introduce a novel method based on a hierarchy built on 1-nearest neighbor graphs in the original space which is used…

计算机视觉与模式识别 · 计算机科学 2022-05-31 M. Saquib Sarfraz , Marios Koulakis , Constantin Seibold , Rainer Stiefelhagen

Contrastive learning, especially self-supervised contrastive learning (SSCL), has achieved great success in extracting powerful features from unlabeled data. In this work, we contribute to the theoretical understanding of SSCL and uncover…

机器学习 · 计算机科学 2023-06-05 Tianyang Hu , Zhili Liu , Fengwei Zhou , Wenjia Wang , Weiran Huang

We study the problem of visualizing large-scale and high-dimensional data in a low-dimensional (typically 2D or 3D) space. Much success has been reported recently by techniques that first compute a similarity structure of the data points…

机器学习 · 计算机科学 2016-04-06 Jian Tang , Jingzhou Liu , Ming Zhang , Qiaozhu Mei

Correct risk estimation of policyholders is of great significance to auto insurance companies. While the current tools used in this field have been proven in practice to be quite efficient and beneficial, we argue that there is still a lot…

人工智能 · 计算机科学 2023-03-02 Joseph Levitas , Konstantin Yavilberg , Oleg Korol , Genadi Man

This study presents a pipeline leveraging t-Distributed Stochastic Neighbor Embedding (t-SNE) for interpretable visualizations of chirp features across diverse outcome scenarios. The dataset, comprising chirp-based temporal, spectral, and…

机器学习 · 计算机科学 2025-08-20 Nooshin Bahador , Milad Lankarany

The quality of GAN-generated images on the MNIST dataset was explored in this paper by comparing them to the original images using t-distributed stochastic neighbor embedding (t- SNE) visualization. A GAN was trained with the dataset to…

计算机视觉与模式识别 · 计算机科学 2023-05-18 Okan Düzyel