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Recent work in metric learning has significantly improved the state-of-the-art in k-nearest neighbor classification. Support vector machines (SVM), particularly with RBF kernels, are amongst the most popular classification algorithms that…

机器学习 · 统计学 2013-01-09 Zhixiang Xu , Kilian Q. Weinberger , Olivier Chapelle

In recent years, neural signed distance function (SDF) has become one of the most effective representation methods for 3D models. By learning continuous SDFs in 3D space, neural networks can predict the distance from a given query space…

计算机视觉与模式识别 · 计算机科学 2022-01-21 Yuanzhan Li , Yuqi Liu , Yujie Lu , Siyu Zhang , Shen Cai , Yanting Zhang

We enlarge the number of available functional depths by introducing the kernelized functional spatial depth (KFSD). KFSD is a local-oriented and kernel-based version of the recently proposed functional spatial depth (FSD) that may be useful…

统计方法学 · 统计学 2015-01-09 Carlo Sguera , Pedro Galeano , Rosa Lillo

The problem of supervised classification (or discrimination) with functional data is considered, with a special interest on the popular k-nearest neighbors (k-NN) classifier. First, relying on a recent result by Cerou and Guyader (2006), we…

机器学习 · 统计学 2008-06-18 Amparo Baillo , Antonio Cuevas

Signed distance map (SDM) is a common representation of surfaces in medical image analysis and machine learning. The computational complexity of SDM for 3D parametric shapes is often a bottleneck in many applications, thus limiting their…

Distance weighted discrimination (DWD) is a margin-based classifier with an interesting geometric motivation. DWD was originally proposed as a superior alternative to the support vector machine (SVM), however DWD is yet to be popular…

机器学习 · 统计学 2015-08-25 Boxiang Wang , Hui Zou

Document categorization is a technique where the category of a document is determined. In this paper three well-known supervised learning techniques which are Support Vector Machine(SVM), Na\"ive Bayes(NB) and Stochastic Gradient…

计算与语言 · 计算机科学 2017-01-31 Md. Saiful Islam , Fazla Elahi Md Jubayer , Syed Ikhtiar Ahmed

Neural 3D implicit representations learn priors that are useful for diverse applications, such as single- or multiple-view 3D reconstruction. A major downside of existing approaches while rendering an image is that they require evaluating…

计算机视觉与模式识别 · 计算机科学 2023-12-20 Tarun Yenamandra , Ayush Tewari , Nan Yang , Florian Bernard , Christian Theobalt , Daniel Cremers

Among the extensions of twin support vector machine (TSVM), some scholars have utilized K-nearest neighbor (KNN) graph to enhance TSVM's classification accuracy. However, these KNN-based TSVM classifiers have two major issues such as high…

机器学习 · 计算机科学 2019-06-25 A. Mir , Jalal A. Nasiri

Multidimensional fitting (MDF) method is a multivariate data analysis method recently developed and based on the fitting of distances. Two matrices are available: one contains the coordinates of the points and the second contains the…

Multi-view shape reconstruction has achieved impressive progresses thanks to the latest advances in neural implicit surface rendering. However, existing methods based on signed distance function (SDF) are limited to closed surfaces, failing…

计算机视觉与模式识别 · 计算机科学 2023-04-21 Yu-Tao Liu , Li Wang , Jie yang , Weikai Chen , Xiaoxu Meng , Bo Yang , Lin Gao

We introduce a pipeline for representing a protein, or protein complex, as the union of signed distance functions (SDFs) by representing each atom as a sphere with the appropriate radius. While this idea has been used previously as a way to…

生物大分子 · 定量生物学 2025-08-19 Cory B. Scott , Charlie Rothschild , Benjamin Nye

This paper proposes a deep-learning-based method for recovering a signed distance function (SDF) of a given hypersurface represented by an implicit level set function. Using the flexibility of constructing a neural network, we use an…

数值分析 · 数学 2023-05-16 Yesom Park , Chang hoon Song , Jooyoung Hahn , Myungjoo Kang

Neural radiance fields (NeRF) have driven impressive progress in view synthesis by using ray-traced volumetric rendering. Splatting-based methods such as 3D Gaussian Splatting (3DGS) provide faster rendering by rasterizing 3D primitives.…

计算机视觉与模式识别 · 计算机科学 2025-12-19 Antonella Rech , Nicola Conci , Nicola Garau

Support vector machines (SVMs) rely on the inherent geometry of a data set to classify training data. Because of this, we believe SVMs are an excellent candidate to guide the development of an analytic feature selection algorithm, as…

机器学习 · 计算机科学 2013-04-23 Carly Stambaugh , Hui Yang , Felix Breuer

This work proposes an optimization-based manipulation planning framework where the objectives are learned functionals of signed-distance fields that represent objects in the scene. Most manipulation planning approaches rely on analytical…

机器人学 · 计算机科学 2021-10-05 Danny Driess , Jung-Su Ha , Marc Toussaint , Russ Tedrake

Autonomous safe navigation in unstructured and novel environments poses significant challenges, especially when environment information can only be provided through low-cost vision sensors. Although safe reactive approaches have been…

机器人学 · 计算机科学 2026-01-06 Satyajeet Das , Yifan Xue , Haoming Li , Nadia Figueroa

In recent years, feature selection has become a challenging problem in several machine learning fields, such as classification problems. Support Vector Machine (SVM) is a well-known technique applied in classification tasks. Various…

机器学习 · 计算机科学 2021-01-18 Asunción Jiménez-Cordero , Juan Miguel Morales , Salvador Pineda

This paper proposes a two-view deterministic geometric model fitting method, termed Superpixel-based Deterministic Fitting (SDF), for multiple-structure data. SDF starts from superpixel segmentation, which effectively captures prior…

计算机视觉与模式识别 · 计算机科学 2016-07-21 Guobao Xiao , Hanzi Wang , Yan Yan , David Suter

Reconstructing signed distance functions (SDFs) from point cloud data benefits many robot autonomy capabilities, including localization, mapping, motion planning, and control. Methods that support online and large-scale SDF reconstruction…

机器人学 · 计算机科学 2026-04-27 Zhirui Dai , Qihao Qian , Tianxing Fan , Nikolay Atanasov