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Radiotherapy planning is a highly complex process that often varies significantly across institutions and individual planners. Most existing deep learning approaches for 3D dose prediction rely on reference plans as ground truth during…

计算机视觉与模式识别 · 计算机科学 2025-12-11 Riqiang Gao , Simon Arberet , Martin Kraus , Han Liu , Wilko FAR Verbakel , Dorin Comaniciu , Florin-Cristian Ghesu , Ali Kamen

Generalised Parton Distributions (GPDs) provide multidimensional insight into hadron structure and are particularly relevant for the pion, whose dynamics are intimately linked to chiral symmetry breaking. We introduce a novel modelling…

高能物理 - 唯象学 · 物理学 2026-03-19 J. M. Morgado-Chávez , J. Segovia , F. de Soto , J. Rodríguez-Quintero , V. Bertone , M. Defurne , C. Mezrag , H. Moutarde

Orthogonal delay-Doppler (DD) division multiplexing (ODDM) has been recently proposed as a promising multicarrier modulation scheme to tackle Doppler spread in high-mobility environments. Accurate channel estimation is of paramount…

信号处理 · 电气工程与系统科学 2024-07-10 Yaru Shan , Akram Shafie , Jinhong Yuan , Fanggang Wang

We propose a pre-compensation scheme for bandwidth limitation and fiber dispersion (pre-BL-EDC) based on the modified Gerchberg-Saxton (GS) algorithm. Experimental results demonstrate 1.0/1.0/2.0 dB gains compared to modified GS pre-EDC for…

信号处理 · 电气工程与系统科学 2025-04-03 Zhe Zhao , Aiying Yang , Xiaoqian Huang , Peng Guo , Shuhua Zhao , Tianjia Xu , Wenkai Wan , Tianwai Bo , Zhongwei Tan , Yi Dong , Yaojun Qiao

Treatment planning in low-dose-rate prostate brachytherapy (LDR-PB) aims to produce arrangement of implantable radioactive seeds that deliver a minimum prescribed dose to the prostate whilst minimizing toxicity to healthy tissues. There can…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Tajwar Abrar Aleef , Ingrid T. Spadinger , Michael D. Peacock , Septimiu E. Salcudean , S. Sara Mahdavi

We developed a novel direct algorithm to derive the mass-ratio distribution (MRD) of short-period binaries from an observed sample of single-lined spectroscopic binaries (SB1). The algorithm considers a class of parameterized MRDs and finds…

天体物理仪器与方法 · 物理学 2017-10-18 Sahar Shahaf , Tsevi Mazeh , Simchon Faigler

In the realm of statistical learning, the increasing volume of accessible data and increasing model complexity necessitate robust methodologies. This paper explores two branches of robust Bayesian methods in response to this trend. The…

统计方法学 · 统计学 2024-12-02 Masahiro Tanaka

Gaussian process (GP) regression provides a strategy for accelerating saddle point searches on high-dimensional energy surfaces by reducing the number of times the energy and its derivatives with respect to atomic coordinates need to be…

化学物理 · 物理学 2025-12-03 Rohit Goswami , Hannes Jónsson

The Poisson-binomial distribution is useful in many applied problems in engineering, actuarial science, and data mining. The Poisson-binomial distribution models the distribution of the sum of independent but not identically distributed…

统计计算 · 统计学 2017-02-07 Man Zhang , Yili Hong , Narayanaswamy Balakrishnan

We present Re-weighted Gradient Descent (RGD), a novel optimization technique that improves the performance of deep neural networks through dynamic sample re-weighting. Leveraging insights from distributionally robust optimization (DRO)…

机器学习 · 计算机科学 2024-10-15 Ramnath Kumar , Kushal Majmundar , Dheeraj Nagaraj , Arun Sai Suggala

The Fast Dose Calculator (FDC), a track repeating algorithm Monte Carlo method was initially developed for proton therapy. The validation for proton therapy has been demonstrated in a previous work. This method can be expanded to ion…

医学物理 · 物理学 2018-09-18 Qianxia Wang , Antony Adair , Yu Deng , Hongliang Chen , M Moyers , James Lin , Pablo Yepes

The Generalized Parton Distributions (GPD) have drawn a lot of interest from the theoretical community since 1997, but also from the experimental community and especially at Jefferson Lab. First, the results for Deeply Virtual Compton…

高能物理 - 实验 · 物理学 2017-08-23 F. Sabatie

Schrodinger Bridges (SBs) are diffusion processes that steer, in finite time, a given initial distribution to another final one while minimizing a suitable cost functional. Although various methods for computing SBs have recently been…

机器学习 · 计算机科学 2025-10-15 George Rapakoulias , Ali Reza Pedram , Fengjiao Liu , Lingjiong Zhu , Panagiotis Tsiotras

We present a new numerical scheme to solve the transfer of diffuse radiation on three-dimensional mesh grids which is efficient on processors with highly parallel architecture such as recently popular GPUs and CPUs with multi- and many-core…

天体物理仪器与方法 · 物理学 2015-05-27 Satoshi Tanaka , Kohji Yoshikawa , Takashi Okamoto , Kenji Hasegawa

The study of Generalised Parton Distributions (GPDs) promises to provide new knowl- edge of the structure of the nucleon, including, most notably, access to the total angular momentum of quarks within the nucleon. It can be difficult to…

高能物理 - 实验 · 物理学 2013-01-09 Morgan Murray

This paper studies distributed nonconvex optimization problems with stochastic gradients for a multi-agent system, in which each agent aims to minimize the sum of all agents' cost functions by using local compressed information exchange. We…

最优化与控制 · 数学 2024-03-05 Antai Xie , Xinlei Yi , Xiaofan Wang , Ming Cao , Xiaoqiang Ren

This paper studies the problem of distributed weighted least-squares (WLS) estimation for an interconnected linear measurement network with additive noise. Two types of measurements are considered: self measurements for individual nodes,…

系统与控制 · 电气工程与系统科学 2020-02-27 Qiqi Yang , Zhaorong Zhang , Minyue Fu

Radiation therapy is crucial in cancer treatment. Experienced experts typically iteratively generate high-quality dose distribution maps, forming the basis for excellent radiation therapy plans. Therefore, automated prediction of dose…

图像与视频处理 · 电气工程与系统科学 2025-01-23 Linjie Fu , Xia Li , Xiuding Cai , Yingkai Wang , Xueyao Wang , Yali Shen , Yu Yao

Purpose: A novel rotating gamma stereotactic radiosurgery (SRS) system (Galaxy RTi) with real-time image guidance technology has been developed for high-precision SRS and frameless fractionated stereotactic radiotherapy (SRT). This work…

医学物理 · 物理学 2022-10-11 Huan Liu , Ahmed Eldib , Lili Chen , Bin Wang , Shidong Li , Curtis Miyamoto , CM Charlie Ma

The point spread function (PSF) of a translation invariant imaging system is its impulse response, which cannot always be measured directly. This is the case in high energy X-ray radiography, and it must be estimated from images of…

数值分析 · 数学 2017-09-27 Kevin T. Joyce , Johnathan M. Bardsley , Aaron Luttman