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Sharpened dimensionality reduction (SDR), which belongs to the class of multidimensional projection techniques, has recently been introduced to tackle the challenges in the exploratory and visual analysis of high-dimensional data. SDR has…

计算机视觉与模式识别 · 计算机科学 2022-02-24 Jeewon Heo , Youngjoo Kim , Jos B. T. M. Roerdink

Differentiable renderers have been used successfully for unsupervised 3D structure learning from 2D images because they can bridge the gap between 3D and 2D. To optimize 3D shape parameters, current renderers rely on pixel-wise losses…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Zhizhong Han , Chao Chen , Yu-Shen Liu , Matthias Zwicker

Dimension reduction (DR) is inherently non-unique: multiple embeddings can preserve the structure of high-dimensional data equally well while differing in layout or geometry. In this paper, we formally define the Rashomon set for DR -- the…

机器学习 · 计算机科学 2026-04-29 Yiyang Sun , Haiyang Huang , Gaurav Rajesh Parikh , Cynthia Rudin

In a human-robot collaborative task where a robot helps its partner by finding described objects, the depth dimension plays a critical role in successful task completion. Existing studies have mostly focused on comprehending the object…

机器人学 · 计算机科学 2021-07-13 Fethiye Irmak Dogan , Iolanda Leite

Large high-dimensional datasets are becoming more and more popular in an increasing number of research areas. Processing the high dimensional data incurs a high computational cost and is inherently inefficient since many of the values that…

计算机视觉与模式识别 · 计算机科学 2013-05-01 Alon Schclar

Recent advances in machine learning allow us to analyze and describe the content of high-dimensional data like text, audio, images or other signals. In order to visualize that data in 2D or 3D, usually Dimensionality Reduction (DR)…

计算机视觉与模式识别 · 计算机科学 2018-11-26 Dimitris Spathis , Nikolaos Passalis , Anastasios Tefas

Dimensionality reduction (DR) is an important technique for data exploration and knowledge discovery. However, most of the main DR methods are either linear (e.g., PCA), do not provide an explicit mapping between the original data and its…

神经与进化计算 · 计算机科学 2022-03-15 Thomas Uriot , Marco Virgolin , Tanja Alderliesten , Peter Bosman

Video frame interpolation is a fundamental tool for temporal video enhancement, but existing quality metrics struggle to evaluate the perceptual impact of interpolation artefacts effectively. Metrics like PSNR, SSIM and LPIPS ignore…

图像与视频处理 · 电气工程与系统科学 2026-01-23 Conall Daly , Darren Ramsook , Anil Kokaram

Dimensionality reduction can be applied to hyperspectral images so that the most useful data can be extracted and processed more quickly. This is critical in any situation in which data volume exceeds the capacity of the computational…

图像与视频处理 · 电气工程与系统科学 2024-02-27 Daniela Lupu , Joseph L. Garrett , Tor Arne Johansen , Milica Orlandic , Ion Necoara

Dimensionality reduction has become an important research topic as demand for interpreting high-dimensional datasets has been increasing rapidly in recent years. There have been many dimensionality reduction methods with good performance in…

机器学习 · 计算机科学 2022-12-01 Qiaodan Luo , Leonardo Christino , Fernando V Paulovich , Evangelos Milios

Dimensionality reduction is used as an important tool for unraveling the complexities of high-dimensional datasets in many fields of science, such as cell biology, chemical informatics, and physics. Visualizations of the dimensionally…

人机交互 · 计算机科学 2025-07-16 Dylan Cashman , Mark Keller , Hyeon Jeon , Bum Chul Kwon , Qianwen Wang

Dimensional reduction~(DR) maps high-dimensional data into a lower dimensions latent space with minimized defined optimization objectives. The DR method usually falls into feature selection~(FS) and feature projection~(FP). FS focuses on…

机器学习 · 计算机科学 2022-11-24 Zelin Zang , Yongjie Xu , Linyan Lu , Yulan Geng , Senqiao Yang , Stan Z. Li

Dimensionality reduction is a crucial technique in data analysis, as it allows for the efficient visualization and understanding of high-dimensional datasets. The circular coordinate is one of the topological data analysis techniques…

代数拓扑 · 数学 2023-01-31 Taejin Paik , Jaemin Park

Unsupervised learning aims to capture the underlying structure of potentially large and high-dimensional datasets. Traditionally, this involves using dimensionality reduction (DR) methods to project data onto lower-dimensional spaces or…

In this note we discuss a common misconception, namely that embeddings are always used to reduce the dimensionality of the item space. We show that when we measure dimensionality in terms of information entropy then the embedding of sparse…

机器学习 · 计算机科学 2019-01-09 Maxim Naumov

Information theoretical measures, such as entropy, mutual information, and various divergences, exhibit robust characteristics in image registration applications. However, the estimation of these quantities is computationally intensive in…

信息论 · 计算机科学 2012-10-03 Zoltan Szabo , Andras Lorincz

Depth perception plays an essential role in the viewer experience for immersive virtual reality (VR) visual environments. However, previous research investigations in the depth quality of 3D/stereoscopic images are rather limited, and in…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Wei Zhou , Zhou Wang

Dimensionality reduction is a popular preprocessing and a widely used tool in data mining. Transparency, which is usually achieved by means of explanations, is nowadays a widely accepted and crucial requirement of machine learning based…

机器学习 · 计算机科学 2023-02-23 André Artelt , Alexander Schulz , Barbara Hammer

Sufficient dimension reduction aims for reduction of dimensionality of a regression without loss of information by replacing the original predictor with its lower-dimensional subspace. Partial (sufficient) dimension reduction arises when…

统计方法学 · 统计学 2019-09-27 Lu Li , Kai Tan , Xuerong Meggie Wen , Zhou Yu

Estimating accurate 3D locations of objects from monocular images is a challenging problem because of lacking depth. Previous work shows that utilizing the object's keypoint projection constraints to estimate multiple depth candidates…

计算机视觉与模式识别 · 计算机科学 2022-09-28 Yingyan Li , Yuntao Chen , Jiawei He , Zhaoxiang Zhang