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Recurrent neural network (RNN) has been widely studied in sequence learning tasks, while the mainstream models (e.g., LSTM and GRU) rely on the gating mechanism (in control of how information flows between hidden states). However, the…

计算机视觉与模式识别 · 计算机科学 2020-05-27 Zhanzhan Cheng , Yunlu Xu , Mingjian Cheng , Yu Qiao , Shiliang Pu , Yi Niu , Fei Wu

Sparse-view Computed Tomography (CT) is an emerging protocol designed to reduce X-ray dose radiation in medical imaging. Traditional Filtered Back Projection algorithm reconstructions suffer from severe artifacts due to sparse data. In…

数值分析 · 数学 2024-12-03 Elena Loli Piccolomini , Davide Evangelista , Elena Morotti

Sequential Convex Programming (SCP) has recently seen a surge of interest as a tool for trajectory optimization. However, most available methods lack rigorous performance guarantees and they are often tailored to specific optimal control…

最优化与控制 · 数学 2019-03-04 Riccardo Bonalli , Abhishek Cauligi , Andrew Bylard , Marco Pavone

In this paper, the Primal-Dual UNet for sparse view CT reconstruction is modified to be applicable to cone beam projections and perform reconstructions of entire volumes instead of slices. Experiments show that the PSNR of the proposed…

图像与视频处理 · 电气工程与系统科学 2022-05-18 Philipp Ernst , Soumick Chatterjee , Georg Rose , Andreas Nürnberger

Computed tomography (CT) plays an important role in lung malignancy diagnostics and therapy assessment and facilitating precision medicine delivery. However, the use of personalized imaging protocols poses a challenge in large-scale…

图像与视频处理 · 电气工程与系统科学 2020-04-06 Md Selim , Jie Zhang , Baowei Fei , Guo-Qiang Zhang , Jin Chen

X-ray imaging dose from serial cone-beam CT (CBCT) scans raises a clinical concern in most image guided radiation therapy procedures. It is the goal of this paper to develop a fast GPU-based algorithm to reconstruct high quality CBCT images…

医学物理 · 物理学 2015-05-19 Xun Jia , Bin Dong , Yifei Lou , Steve B. Jiang

An accurate road surface friction prediction algorithm can enable intelligent transportation systems to share timely road surface condition to the public for increasing the safety of the road users. Previously, scholars developed multiple…

机器学习 · 计算机科学 2020-07-13 Ziyuan Pu , Zhiyong Cui , Shuo Wang , Qianmu Li , Yinhai Wang

Recently, convolutional neural networks (CNNs) have been used as a powerful tool to solve many problems of machine learning and computer vision. In this paper, we aim to provide insight on the property of convolutional neural networks, as…

机器学习 · 计算机科学 2016-07-20 Wenling Shang , Kihyuk Sohn , Diogo Almeida , Honglak Lee

State-of-health (SOH) estimation is a key step in ensuring the safe and reliable operation of batteries. Due to issues such as varying data distribution and sequence length in different cycles, most existing methods require health feature…

机器学习 · 计算机科学 2023-03-17 Ziyue Huang , Lujuan Dang , Yuqing Xie , Wentao Ma , Badong Chen

Accurate prediction of metro passenger volume (number of passengers) is valuable to realize real-time metro system management, which is a pivotal yet challenging task in intelligent transportation. Due to the complex spatial correlation and…

机器学习 · 计算机科学 2021-09-03 Fuchen Gao , Zhanquan Wang , Zhenguang Liu

The automatic analysis of ultrasound sequences can substantially improve the efficiency of clinical diagnosis. In this work we present our attempt to automate the challenging task of measuring the vascular diameter of the fetal abdominal…

计算机视觉与模式识别 · 计算机科学 2018-07-12 Nicolo' Savioli , Silvia Visentin , Erich Cosmi , Enrico Grisan , Pablo Lamata , Giovanni Montana

Recurrent neural networks (RNNs) are powerful dynamical models for data with complex temporal structure. However, training RNNs has traditionally proved challenging due to exploding or vanishing of gradients. RNN models such as LSTMs and…

机器学习 · 计算机科学 2020-06-17 Tankut Can , Kamesh Krishnamurthy , David J. Schwab

Robust trajectory optimization enables autonomous systems to operate safely under uncertainty by computing control policies that satisfy the constraints for all bounded disturbances. However, these problems often lead to large Second Order…

机器人学 · 计算机科学 2026-05-19 Jiawei Wang , Arshiya Taj Abdul , Evangelos A. Theodorou

Cone beam computed tomography (CBCT) is an emerging medical imaging technique to visualize the internal anatomical structures of patients. During a CBCT scan, several projection images of different angles or views are collectively utilized…

图像与视频处理 · 电气工程与系统科学 2024-01-18 Heejun Shin , Taehee Kim , Jongho Lee , Se Young Chun , Seungryung Cho , Dongmyung Shin

We investigate the parameter-space geometry of recurrent neural networks (RNNs), and develop an adaptation of path-SGD optimization method, attuned to this geometry, that can learn plain RNNs with ReLU activations. On several datasets that…

机器学习 · 计算机科学 2016-05-24 Behnam Neyshabur , Yuhuai Wu , Ruslan Salakhutdinov , Nathan Srebro

Recurrent Neural Networks (RNNs) have been widely applied to deal with temporal problems, such as flood forecasting and financial data processing. On the one hand, traditional RNNs models amplify the gradient issue due to the strict time…

神经与进化计算 · 计算机科学 2022-11-07 Jin Wang , Yongsong Zou , Se-Jung Lim

We introduce a deep recurrent neural network architecture that approximates visual cortical circuits. We show that this architecture, which we refer to as the gamma-net, learns to solve contour detection tasks with better sample efficiency…

计算机视觉与模式识别 · 计算机科学 2020-10-30 Drew Linsley , Junkyung Kim , Alekh Ashok , Thomas Serre

Deep-learning based QRS-detection algorithms often require essential post-processing to refine the prediction streams for R-peak localisation. The post-processing performs signal-processing tasks from as simple as, removing isolated 0s or…

信号处理 · 电气工程与系统科学 2021-10-11 Ahsan Habib , Chandan Karmakar , John Yearwood

The generalized minimal residual (GMRES) algorithm is applied to image reconstruction using linear computed tomography (CT) models. The GMRES algorithm iteratively solves square, non-symmetric linear systems and it has practical application…

医学物理 · 物理学 2022-05-04 Emil Y. Sidky , Per Christian Hansen , Jakob S. Jørgensen , Xiaochuan Pan

This study presents a reconstruction of the Gaussian Beam Tracing solution using CUDA, with a particular focus on the utilisation of GPU acceleration as a means of overcoming the performance limitations of traditional CPU algorithms in…

性能 · 计算机科学 2025-01-24 Zhang Sheng , Lishu Duan , Hanbo Jiang