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Segmentation is one of the most important tasks in image processing. It consist in classify the pixels into two or more groups depending on their intensity levels and a threshold value. The quality of the segmentation depends on the method…

计算机视觉与模式识别 · 计算机科学 2014-06-25 Diego Oliva , Erik Cuevas , Gonzalo Pajares , Daniel Zaldivar , Valentin Osuna

Recent observations of anomalous microwave emission (AME) reveal spectral features that are not readily reproduced by spinning dust models. We examine how dust grain distributions and environmental parameters determine the peak frequency…

星系天体物理 · 物理学 2026-03-17 Zheng Zhang , Jens Chluba , Roke Cepeda-Arroita , José Alberto Rubiño-Martín

Slow feature analysis (SFA) is an unsupervised learning algorithm that extracts slowly varying features from a time series. Graph-based SFA (GSFA) is a supervised extension that can solve regression problems if followed by a post-processing…

人工智能 · 计算机科学 2015-09-29 Alberto N. Escalante-B. , Laurenz Wiskott

This paper presents optimization issues of energy detection (ED) thresholds in cooperative spectrum sensing (CSS) with regard to general Gaussian noise. Enhanced ED thresholds are proposed to overcome sensitivity of multiple noise…

信息论 · 计算机科学 2018-01-01 He Huang

Ultra-fast and multi-dimensional spectroscopy gives a powerful looking glass into the dynamics of molecular systems. In particular two-dimensional electronic spectroscopy (2DES) provides a probe of coherence and the flow of energy within…

量子物理 · 物理学 2021-03-31 André Anda , Jared H. Cole

The present paper is devoted to the evaluation of energy detection based spectrum sensing over different multipath fading and shadowing conditions. This is realized by means of a unified and versatile approach that is based on the…

Across a wide array of disciplines, many researchers use machine learning (ML) algorithms to identify a subgroup of individuals who are likely to benefit from a treatment the most (``exceptional responders'') or those who are harmed by it.…

统计方法学 · 统计学 2025-09-03 Michael Lingzhi Li , Kosuke Imai

Music Structure Analysis (MSA) aims to uncover the high-level organization of musical pieces. State-of-the-art methods are often based on supervised deep learning, but these methods are bottlenecked by the need for heavily annotated data…

声音 · 计算机科学 2026-03-31 Axel Marmoret

To detect anomalies in real-world graphs, such as social, email, and financial networks, various approaches have been developed. While they typically assume static input graphs, most real-world graphs grow over time, naturally represented…

机器学习 · 计算机科学 2024-07-26 Jongha Lee , Sunwoo Kim , Kijung Shin

In cellular systems, the user equipment (UE) can request a change in the frequency band when its rate drops below a threshold on the current band. The UE is then instructed by the base station (BS) to measure the quality of candidate bands,…

网络与互联网体系结构 · 计算机科学 2020-09-15 Faris B. Mismar , Ahmad AlAmmouri , Ahmed Alkhateeb , Jeffrey G. Andrews , Brian L. Evans

Spectrum sharing allows different protocols of the same standard (e.g., 802.11 family) or different standards (e.g., LTE and DVB) to coexist in overlapping frequency bands. As this paradigm continues to spread, wireless systems must also…

This work investigates two physics-based models that simulate the non-linear partial differential algebraic equations describing an electric double layer supercapacitor. In one model the linear dependence between electrolyte concentration…

系统与控制 · 计算机科学 2014-12-09 Ross Drummond , David A. Howey , Stephen R. Duncan

Best subset selection is considered the `gold standard' for many sparse learning problems. A variety of optimization techniques have been proposed to attack this non-convex and NP-hard problem. In this paper, we investigate the dual forms…

统计方法学 · 统计学 2022-07-06 Shaogang Ren , Guanhua Fang , Ping Li

In supervised classification problems, the test set may contain data points belonging to classes not observed in the learning phase. Moreover, the same units in the test data may be measured on a set of additional variables recorded at a…

统计方法学 · 统计学 2021-02-04 Michael Fop , Pierre-Alexandre Mattei , Charles Bouveyron , Thomas Brendan Murphy

The smooth particle mesh Ewald (SPME) method is an FFT based method for the fast evaluation of electrostatic interactions under periodic boundary conditions. A highly optimized implementation of this method is available in GROMACS, a widely…

数值分析 · 数学 2017-12-14 Davood Saffar Shamshirgar , Berk Hess , Anna-Karin Tornberg

Inference-time scaling offers a versatile paradigm for aligning visual generative models with downstream objectives without parameter updates. However, existing approaches that optimize the high-dimensional initial noise suffer from severe…

机器学习 · 计算机科学 2026-02-04 Jinyan Ye , Zhongjie Duan , Zhiwen Li , Cen Chen , Daoyuan Chen , Yaliang Li , Yingda Chen

In the feature classification domain, the choice of data affects widely the results. For the Hyperspectral image, the bands dont all contain the information; some bands are irrelevant like those affected by various atmospheric effects, see…

计算机视觉与模式识别 · 计算机科学 2012-11-02 Elkebir Sarhrouni , Ahmed Hammouch , Driss Aboutajdine

Energy-based models are a simple yet powerful class of probabilistic models, but their widespread adoption has been limited by the computational burden of training them. We propose a novel loss function called Energy Discrepancy (ED) which…

Realizing high-throughput aberration-corrected Scanning Transmission Electron Microscopy (STEM) exploration of atomic structures requires rapid tuning of multipole probe correctors while compensating for the inevitable drift of the optical…

机器学习 · 计算机科学 2026-01-28 Utkarsh Pratiush , Austin Houston , Richard Liu , Gerd Duscher , Sergei Kalinin

Parallelism has become a central concern in modern decoding frameworks aiming to meet stringent throughput and latency requirements. Guessing Random Additive Noise Decoding (GRAND) is a recently proposed decoding paradigm that tests…

信息论 · 计算机科学 2026-05-04 Li Wan , Huarui Yin , Wenyi Zhang