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A supervised machine learning algorithm, called locally adaptive discriminant analysis (LADA), has been developed to locate boundaries between identifiable image features that have varying intensities. LADA is an adaptation of image…

Linear discriminant analysis (LDA) is a widely used technique for data classification. The method offers adequate performance in many classification problems, but it becomes inefficient when the data covariance matrix is ill-conditioned.…

Linear Discriminant Analysis (LDA) is a well-known method for dimensionality reduction and classification. Previous studies have also extended the binary-class case into multi-classes. However, many applications, such as object detection…

机器学习 · 计算机科学 2013-09-24 Gang Chen

A major challenge in scaling object detection is the difficulty of obtaining labeled images for large numbers of categories. Recently, deep convolutional neural networks (CNNs) have emerged as clear winners on object classification…

计算机视觉与模式识别 · 计算机科学 2017-11-10 Judy Hoffman , Sergio Guadarrama , Eric Tzeng , Ronghang Hu , Jeff Donahue , Ross Girshick , Trevor Darrell , Kate Saenko

Deep learning (DL) techniques have had unprecedented success when applied to images, waveforms, and texts to cite a few. In general, when the sample size (N) is much greater than the number of features (d), DL outperforms previous machine…

计算机视觉与模式识别 · 计算机科学 2017-12-04 Thanh Hai Nguyen , Yann Chevaleyre , Edi Prifti , Nataliya Sokolovska , Jean-Daniel Zucker

We propose a direct domain adaptation (DDA) approach to enrich the training of supervised neural networks on synthetic data by features from real-world data. The process involves a series of linear operations on the input features to the NN…

机器学习 · 计算机科学 2021-08-18 Tariq Alkhalifah , Oleg Ovcharenko

Many real-time tasks, such as human-computer interaction, require fast and efficient facial gender classification. Although deep CNN nets have been very effective for a multitude of classification tasks, their high space and time demands…

计算机视觉与模式识别 · 计算机科学 2021-02-23 Qing Tian , Tal Arbel , James J. Clark

Convolutional neural networks (CNNs) learn abstract features to perform object classification, but understanding these features remains challenging due to difficult-to-interpret results or high computational costs. We propose an automatic…

计算机视觉与模式识别 · 计算机科学 2024-09-26 Maren H. Wehrheim , Pamela Osuna-Vargas , Matthias Kaschube

We combine features extracted from pre-trained convolutional neural networks (CNNs) with the fast, linear Exemplar-LDA classifier to get the advantages of both: the high detection performance of CNNs, automatic feature engineering, fast…

计算机视觉与模式识别 · 计算机科学 2017-04-13 Björn Barz , Erik Rodner , Christoph Käding , Joachim Denzler

Accurate image segmentation remains challenging, particularly in generating sharp, confident boundaries. While modern architectures have advanced the field, many of them still rely on standard loss functions like Cross-Entropy and Dice,…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Adam Dawid Sztamborski , Raül Pérez-Gonzalo , Antonio Agudo

Supervised manifold learning methods learn data representations by preserving the geometric structure of data while enhancing the separation between data samples from different classes. In this work, we propose a theoretical study of…

机器学习 · 计算机科学 2018-01-08 Elif Vural , Christine Guillemot

We show that for unconstrained Deep Linear Discriminant Analysis (LDA) classifiers, maximum-likelihood training admits pathological solutions in which class means drift together, covariances collapse, and the learned representation becomes…

机器学习 · 统计学 2026-01-06 Maxat Tezekbayev , Rustem Takhanov , Arman Bolatov , Zhenisbek Assylbekov

We propose a deep neural network (DNN) based least distance (LD) estimator (DNN-LD) for a multivariate regression problem, addressing the limitations of the conventional methods. Due to the flexibility of a DNN structure, both linear and…

统计方法学 · 统计学 2024-01-09 Jungmin Shin , Seung Jun Shin , Sungwan Bang

A novel bilinear discriminant feature line analysis (BDFLA) is proposed for image feature extraction. The nearest feature line (NFL) is a powerful classifier. Some NFL-based subspace algorithms were introduced recently. In most of the…

计算机视觉与模式识别 · 计算机科学 2019-05-10 Lijun Yan , Jun-Bao Li , Xiaorui Zhu , Jeng-Shyang Pan , Linlin Tang

The recent development of more sophisticated spectroscopic methods allows acqui- sition of high dimensional datasets from which valuable information may be extracted using multivariate statistical analyses, such as dimensionality reduction…

应用统计 · 统计学 2023-11-14 Mario Fordellone , Andrea Bellincontro , Fabio Mencarelli

Linear dimensionality reduction methods are commonly used to extract low-dimensional structure from high-dimensional data. However, popular methods disregard temporal structure, rendering them prone to extracting noise rather than…

信息论 · 计算机科学 2021-06-10 David G. Clark , Jesse A. Livezey , Kristofer E. Bouchard

In the presence of large sets of labeled data, Deep Learning (DL) has accomplished extraordinary triumphs in the avenue of computer vision, particularly in object classification and recognition tasks. However, DL cannot always perform well…

计算机视觉与模式识别 · 计算机科学 2019-01-03 Mohammad Mahfujur Rahman , Clinton Fookes , Mahsa Baktashmotlagh , Sridha Sridharan

High-dimensional biological data often exhibit a severe mismatch between feature dimensionality and sample size, making reliable classification difficult in extremely small-data regimes. In these settings, kernel methods can lose…

机器学习 · 计算机科学 2026-05-21 Alakananda Mitra , David H. Fleisher , Vangimalla Reddy , Chittaranjan Ray

Line segment detection is a fundamental low-level task in computer vision, and improvements in this task can impact more advanced methods that depend on it. Most new methods developed for line segment detection are based on Convolutional…

计算机视觉与模式识别 · 计算机科学 2024-11-21 Sebastian Janampa , Marios Pattichis

Current Domain Adaptation (DA) methods based on deep architectures assume that the source samples arise from a single distribution. However, in practice, most datasets can be regarded as mixtures of multiple domains. In these cases…

计算机视觉与模式识别 · 计算机科学 2018-05-04 Massimiliano Mancini , Lorenzo Porzi , Samuel Rota Bulò , Barbara Caputo , Elisa Ricci