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Variational methods have been recently considered for scaling the training process of Gaussian process classifiers to large datasets. As an alternative, we describe here how to train these classifiers efficiently using expectation…

机器学习 · 统计学 2015-07-17 Daniel Hernández-Lobato , José Miguel Hernández-Lobato

Previous work on surgical skill assessment using intraoperative tool motion in the operating room (OR) has focused on highly-structured surgical tasks such as cholecystectomy. Further, these methods only considered generic motion metrics…

计算机视觉与模式识别 · 计算机科学 2014-12-22 Piyush Poddar , Narges Ahmidi , S. Swaroop Vedula , Lisa Ishii , Gregory D. Hager , Masaru Ishii

Choosing the most adequate kernel is crucial in many Machine Learning applications. Gaussian Process is a state-of-the-art technique for regression and classification that heavily relies on a kernel function. However, in the Gaussian…

机器学习 · 计算机科学 2019-10-15 Ibai Roman , Roberto Santana , Alexander Mendiburu , Jose A. Lozano

Surgical training in medical school residency programs has followed the apprenticeship model. The learning and assessment process is inherently subjective and time-consuming. Thus, there is a need for objective methods to assess surgical…

计算机视觉与模式识别 · 计算机科学 2021-03-10 Erim Yanik , Xavier Intes , Uwe Kruger , Pingkun Yan , David Miller , Brian Van Voorst , Basiel Makled , Jack Norfleet , Suvranu De

There is an urgent need for an effective video classification method by means of a small number of samples. The deficiency of samples could be effectively alleviated by generating samples through Generative Adversarial Networks (GAN), but…

计算机视觉与模式识别 · 计算机科学 2019-10-01 Yumeng Zhang , Gaoguo Jia , Li Chen , Mingrui Zhang , Junhai Yong

Smoothed model checking based on Gaussian process classification provides a powerful approach for statistical model checking of parametric continuous time Markov chain models. The method constructs a model for the functional dependence of…

机器学习 · 计算机科学 2021-04-21 Paul Piho , Jane Hillston

We consider modeling of angular or directional data viewed as a linear variable wrapped onto a unit circle. In particular, we focus on the spatio-temporal context, motivated by a collection of wave directions obtained as computer model…

统计方法学 · 统计学 2017-04-18 Gianluca Mastrantonio , Giovanna Jona Lasinio , Alan E. Gelfand

Most self-supervised learning (SSL) methods often work on curated datasets where the object-centric assumption holds. This assumption breaks down in uncurated images. Existing scene image SSL methods try to find the two views from original…

计算机视觉与模式识别 · 计算机科学 2023-10-02 Ke Zhu , Yin-Yin He , Jianxin Wu

Gaussian process regression is a well-established Bayesian machine learning method. We propose a new approach to Gaussian process regression using quantum kernels based on parameterized quantum circuits. By employing a hardware-efficient…

量子物理 · 物理学 2024-02-06 Frederic Rapp , Marco Roth

In modern and personalised education, there is a growing interest in developing learners' competencies and accurately assessing them. In a previous work, we proposed a procedure for deriving a learner model for automatic skill assessment…

人工智能 · 计算机科学 2024-08-05 Giorgia Adorni , Francesca Mangili , Alberto Piatti , Claudio Bonesana , Alessandro Antonucci

Deep-learning-based video processing has yielded transformative results in recent years. However, the video analytics pipeline is energy-intensive due to high data rates and reliance on complex inference algorithms, which limits its…

计算机视觉与模式识别 · 计算机科学 2021-05-04 Yingying Zhao , Mingzhi Dong , Yujiang Wang , Da Feng , Qin Lv , Robert P. Dick , Dongsheng Li , Tun Lu , Ning Gu , Li Shang

A new open-source image processing pipeline for analyzing camera trap time-lapse recordings is described. This pipeline includes machine learning models to assist human-in-the-loop video segmentation and animal re-identification. We present…

计算机视觉与模式识别 · 计算机科学 2022-06-13 Michael L. Hilton , Mark T. Yamane , Leah M. Knezevich

Graph-based holistic scene representations facilitate surgical workflow understanding and have recently demonstrated significant success. However, this task is often hindered by the limited availability of densely annotated surgical scene…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Çağhan Köksal , Ghazal Ghazaei , Felix Holm , Azade Farshad , Nassir Navab

In their standard form Gaussian processes (GPs) provide a powerful non-parametric framework for regression and classificaton tasks. Their one limiting property is their $\mathcal{O}(N^{3})$ scaling where $N$ is the number of training data…

机器学习 · 统计学 2020-01-16 Vidhi Lalchand , A. C. Faul

Model selection in Gaussian processes scales prohibitively with the size of the training dataset, both in time and memory. While many approximations exist, all incur inevitable approximation error. Recent work accounts for this error in the…

机器学习 · 计算机科学 2025-07-08 Jonathan Wenger , Kaiwen Wu , Philipp Hennig , Jacob R. Gardner , Geoff Pleiss , John P. Cunningham

Dynamic reconstruction of deformable tissues in endoscopic video is a key technology for robot-assisted surgery. Recent reconstruction methods based on neural radiance fields (NeRFs) have achieved remarkable results in the reconstruction of…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Weixing Xie , Junfeng Yao , Xianpeng Cao , Qiqin Lin , Zerui Tang , Xiao Dong , Xiaohu Guo

In this paper, a novel optical inspection system is presented that is directly suitable for Industry 4.0 and the implementation on IoT-devices controlling the manufacturing process. The proposed system is capable of distinguishing between…

图像与视频处理 · 电气工程与系统科学 2022-09-29 Andreas Spruck , Jürgen Seiler , Michael Roll , Thomas Dudziak , Jürgen Eckstein , André Kaup

Understanding the intricate workflows of cataract surgery requires modeling complex interactions between surgical tools, anatomical structures, and procedural techniques. Existing datasets primarily address isolated aspects of surgical…

计算机视觉与模式识别 · 计算机科学 2025-06-30 Felix Holm , Gözde Ünver , Ghazal Ghazaei , Nassir Navab

Sensor signals acquired in the industrial process contain rich information which can be analyzed to facilitate effective monitoring of the process, early detection of system anomalies, quick diagnosis of fault root causes, and intelligent…

信号处理 · 电气工程与系统科学 2020-05-27 Feng Ye , Zhijie Xia , Min Dai , Zhisheng Zhang

Deep learning-based segmentation and classification are crucial to large-scale biomedical imaging, particularly for 3D data, where manual analysis is impractical. Although many methods exist, selecting suitable models and tuning parameters…