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We present a rigorous mathematical solution to photometric redshift estimation and the more general inversion problem. The challenge we address is to meaningfully constrain unknown properties of astronomical sources based on given…

天体物理学 · 物理学 2011-02-11 Tamas Budavari

This paper describes the RRMSE (Relative Root Mean Square Error) based weights to weight the occurrences of predictive values before averaging for the ensemble voting regression. The core idea behind ensemble regression is to combine…

机器学习 · 计算机科学 2022-07-12 Shikun Chen , Nguyen Manh Luc

Despite increasing popularity in empirical studies, the integration of machine learning generated variables into regression models for statistical inference suffers from the measurement error problem, which can bias estimation and threaten…

计量经济学 · 经济学 2024-12-23 Gordon Burtch , Edward McFowland , Mochen Yang , Gediminas Adomavicius

Few-shot learning has been proposed and rapidly emerging as a viable means for completing various tasks. Many few-shot models have been widely used for relation learning tasks. However, each of these models has a shortage of capturing a…

计算与语言 · 计算机科学 2021-05-26 Qing Lin , Yongbin Liu , Wen Wen , Zhihua Tao

Light spectra are a very important source of information for diverse classification problems, e.g., for discrimination of materials. To lower the cost for acquiring this information, multispectral cameras are used. Several techniques exist…

图像与视频处理 · 电气工程与系统科学 2022-09-19 Frank Sippel , Jürgen Seiler , Nils Genser , André Kaup

Analysis of sample survey data often requires adjustments to account for missing data in the outcome variables of principal interest. Standard adjustment methods based on item imputation or on propensity weighting factors rely heavily on…

统计方法学 · 统计学 2016-03-08 Wei-Yin Loh , John Eltinge , MoonJung Cho , Yuanzhi Li

Automated model selection is often proposed to users to choose which machine learning model (or method) to apply to a given regression task. In this paper, we show that combining different regression models can yield better results than…

Image similarity has been extensively studied in computer vision. In recent years, machine-learned models have shown their ability to encode more semantics than traditional multivariate metrics. However, in labelling semantic similarity,…

计算机视觉与模式识别 · 计算机科学 2024-09-11 Zukang Liao , Min Chen

Convex regression is a promising area for bridging statistical estimation and deterministic convex optimization. New piecewise linear convex regression methods are fast and scalable, but can have instability when used to approximate…

机器学习 · 计算机科学 2012-06-22 Lauren Hannah , David Dunson

This work considers the problem of depth completion, with or without image data, where an algorithm may measure the depth of a prescribed limited number of pixels. The algorithmic challenge is to choose pixel positions strategically and…

计算机视觉与模式识别 · 计算机科学 2021-11-10 Eyal Gofer , Shachar Praisler , Guy Gilboa

Ensemble Kalman inversion is a parallelizable derivative-free method to solve inverse problems. The method uses an ensemble that follows the Kalman update formula iteratively to solve an optimization problem. The ensemble size is crucial to…

数值分析 · 数学 2021-05-25 Yoonsang Lee

The success of diffusion probabilistic models in generative tasks, such as text-to-image generation, has motivated the exploration of their application to regression problems commonly encountered in scientific computing and various other…

机器学习 · 计算机科学 2024-08-12 Dule Shu , Amir Barati Farimani

Blind image deblurring algorithms have been improving steadily in the past years. Most state-of-the-art algorithms, however, still cannot perform perfectly in challenging cases, especially in large blur setting. In this paper, we focus on…

计算机视觉与模式识别 · 计算机科学 2014-05-27 Jinshan Pan , Risheng Liu , Zhixun Su , Xianfeng Gu

This paper deals with the problem of estimating a slope parameter in a simple linear regression model, where independent variables have functional measurement errors. Measurement errors in independent variables, as is well known, cause…

统计理论 · 数学 2018-04-10 Hisayuki Tsukuma

As deep learning-based computer vision algorithms continue to advance the state of the art, their robustness to real-world data continues to be an issue, making it difficult to bring an algorithm from the lab to the real world.…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Michael Smith , Frank Ferrie

Data imbalance is ubiquitous when applying machine learning to real-world problems, particularly regression problems. If training data are imbalanced, the learning is dominated by the densely covered regions of the target distribution and…

机器学习 · 计算机科学 2024-10-29 Yuchang Jiang , Vivien Sainte Fare Garnot , Konrad Schindler , Jan Dirk Wegner

Alpha matting aims to estimate the translucency of an object in a given image. The resulting alpha matte describes pixel-wise to what amount foreground and background colors contribute to the color of the composite image. While most methods…

计算机视觉与模式识别 · 计算机科学 2020-06-29 Thomas Germer , Tobias Uelwer , Stefan Conrad , Stefan Harmeling

Blind image deblurring is a challenging low-level vision task that involves estimating the unblurred image when the blur kernel is unknown. In this paper, we present a self-supervised multi-scale blind image deblurring method to jointly…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Lening Guo , Jing Yu , Ning Zhang , Chuangbai Xiao

We develop a generalized inverse optimization framework for fitting the cost vector of a single linear optimization problem given multiple observed decisions. This setting is motivated by ensemble learning, where building consensus from…

最优化与控制 · 数学 2020-06-08 Aaron Babier , Timothy C. Y. Chan , Taewoo Lee , Rafid Mahmood , Daria Terekhov

The image blurring process is generally modelled as the convolution of a blur kernel with a latent image. Therefore, the estimation of the blur kernel is essentially important for blind image deblurring. Unlike existing approaches which…

计算机视觉与模式识别 · 计算机科学 2019-04-18 Liyuan Pan , Richard Hartley , Miaomiao Liu , Yuchao Dai