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Recently, the use of synthetic training data has been on the rise as it offers correctly labelled datasets at a lower cost. The downside of this technique is that the so-called domain gap between the real target images and synthetic…

计算机视觉与模式识别 · 计算机科学 2022-11-30 Bram Vanherle , Steven Moonen , Frank Van Reeth , Nick Michiels

We consider the so-called Keplerian periodogram, in which the putative detectable signal is modelled by a highly non-linear Keplerian radial velocity function, appearing in Doppler exoplanetary surveys. We demonstrate that for planets on…

天体物理仪器与方法 · 物理学 2014-10-29 Roman V. Baluev

Recently deep neural networks have shown their capacity to memorize training data, even with noisy labels, which hurts generalization performance. To mitigate this issue, we provide a simple but effective baseline method that is robust to…

机器学习 · 计算机科学 2019-09-30 Yucen Luo , Jun Zhu , Tomas Pfister

We study the statistical characteristics of a box-fitting algorithm to analyze stellar photometric time series in the search for periodic transits by extrasolar planets. The algorithm searches for signals characterized by a periodic…

天体物理学 · 物理学 2016-08-30 G. Kovács , S. Zucker , T. Mazeh

Giving up and starting over may seem wasteful in many situations such as searching for a target or training deep neural networks (DNNs). Our study, though, demonstrates that resetting from a checkpoint can significantly improve…

机器学习 · 计算机科学 2025-03-14 Youngkyoung Bae , Yeongwoo Song , Hawoong Jeong

Self-training is a competitive approach in domain adaptive segmentation, which trains the network with the pseudo labels on the target domain. However inevitably, the pseudo labels are noisy and the target features are dispersed due to the…

计算机视觉与模式识别 · 计算机科学 2021-01-29 Pan Zhang , Bo Zhang , Ting Zhang , Dong Chen , Yong Wang , Fang Wen

Direct imaging of exoplanets involves the extraction of very faint signals from highly noisy data sets, with noise that often exhibits significant spatial, spectral and temporal correlations. As a results, a large number of post-processing…

天体物理仪器与方法 · 物理学 2015-05-26 Dmitry Savransky

We present an algorithm that uses the distribution of photon arrival times to distinguish speckles from incoherent sources, like planets and disks, in high contrast images. Using simulated data, we show that our approach can overcome the…

天体物理仪器与方法 · 物理学 2019-10-09 Alex B. Walter , Clinton Bockstiegel , Timothy D. Brandt , Benjamin A. Mazin

In the field of medical image analysis, deep learning models have demonstrated remarkable success in enhancing diagnostic accuracy and efficiency. However, the reliability of these models is heavily dependent on the quality of training…

图像与视频处理 · 电气工程与系统科学 2024-07-12 Maolin Li , Giacomo Tarroni

Despite the importance of denoising in modern machine learning and ample empirical work on supervised denoising, its theoretical understanding is still relatively scarce. One concern about studying supervised denoising is that one might not…

机器学习 · 计算机科学 2024-03-18 Chinmaya Kausik , Kashvi Srivastava , Rishi Sonthalia

Deep learning models leak significant amounts of information about their training datasets. Previous work has investigated training models with differential privacy (DP) guarantees through adding DP noise to the gradients. However, such…

机器学习 · 计算机科学 2020-07-23 Milad Nasr , Reza Shokri , Amir houmansadr

Radial velocity surveys are beginning to reach the time baselines required to detect Jupiter analogs, as well as sub-Saturn mass planets in close orbits. Therefore it is important to understand the sensitivity of these surveys at long…

天体物理学 · 物理学 2009-11-10 Andrew Cumming

Extracting noisy or incorrectly labeled samples from a labeled dataset with hard/difficult samples is an important yet under-explored topic. Two general and often independent lines of work exist, one focuses on addressing noisy labels, and…

机器学习 · 计算机科学 2023-07-21 Mahsa Forouzesh , Patrick Thiran

The memorization problem is well-known in the field of computer vision. Liu et al. propose a technique called Early-Learning Regularization, which improves accuracy on the CIFAR datasets when label noise is present. This project replicates…

计算机视觉与模式识别 · 计算机科学 2021-06-02 Alessio Galatolo , Alfred Nilsson , Roderick Karlemstrand , Yineng Wang

Self-training is one of the earliest and simplest semi-supervised methods. The key idea is to augment the original labeled dataset with unlabeled data paired with the model's prediction (i.e. the pseudo-parallel data). While self-training…

机器学习 · 计算机科学 2020-10-20 Junxian He , Jiatao Gu , Jiajun Shen , Marc'Aurelio Ranzato

We introduce a novel method for training machine learning models in the presence of noisy labels, which are prevalent in domains such as medical diagnosis and autonomous driving and have the potential to degrade a model's generalization…

机器学习 · 计算机科学 2024-06-26 Farooq Ahmad Wani , Maria Sofia Bucarelli , Fabrizio Silvestri

An anomalous sound detection system to detect unknown anomalous sounds usually needs to be built using only normal sound data. Moreover, it is desirable to improve the system by effectively using a small amount of anomalous sound data,…

声音 · 计算机科学 2021-06-14 Ibuki Kuroyanagi , Tomoki Hayashi , Kazuya Takeda , Tomoki Toda

Regularization is essential for avoiding over-fitting to training data in network optimization, leading to better generalization of the trained networks. The label noise provides a strong implicit regularization by replacing the target…

机器学习 · 计算机科学 2022-05-04 Kensuke Nakamura , Bong-Soo Sohn , Kyoung-Jae Won , Byung-Woo Hong

While unsupervised change detection using contrastive learning has been significantly improved the performance of literature techniques, at present, it only focuses on the bi-temporal change detection scenario. Previous state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Yuxing Chen , Lorenzo Bruzzone

Time series measured from real-world systems are generally noisy, complex and display statistical properties that evolve continuously over time. Here, we present a method that combines wavelet analysis and non-stationary surrogates to…

数据分析、统计与概率 · 物理学 2018-04-12 Mario Chavez , Bernard Cazelles