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It is well-established that many iterative sparse reconstruction algorithms can be unrolled to yield a learnable neural network for improved empirical performance. A prime example is learned ISTA (LISTA) where weights, step sizes and…

机器学习 · 计算机科学 2020-10-06 Freya Behrens , Jonathan Sauder , Peter Jung

Gated recurrent networks such as those composed of Long Short-Term Memory (LSTM) nodes have recently been used to improve state of the art in many sequential processing tasks such as speech recognition and machine translation. However, the…

神经与进化计算 · 计算机科学 2018-06-11 Aditya Rawal , Risto Miikkulainen

Network representation learning, as an approach to learn low dimensional representations of vertices, has attracted considerable research attention recently. It has been proven extremely useful in many machine learning tasks over large…

机器学习 · 计算机科学 2019-06-11 Hao Peng , Jianxin Li , Hao Yan , Qiran Gong , Senzhang Wang , Lin Liu , Lihong Wang , Xiang Ren

We observed that recent state-of-the-art results on single image human pose estimation were achieved by multi-stage Convolution Neural Networks (CNN). Notwithstanding the superior performance on static images, the application of these…

计算机视觉与模式识别 · 计算机科学 2018-03-12 Yue Luo , Jimmy Ren , Zhouxia Wang , Wenxiu Sun , Jinshan Pan , Jianbo Liu , Jiahao Pang , Liang Lin

Adaptive sampling that exploits the spatiotemporal redundancy in videos is critical for always-on action recognition on wearable devices with limited computing and battery resources. The commonly used fixed sampling strategy is not…

计算机视觉与模式识别 · 计算机科学 2022-07-18 Khoi-Nguyen C. Mac , Minh N. Do , Minh P. Vo

The drastic variation of motion in spatial and temporal dimensions makes the video prediction task extremely challenging. Existing RNN models obtain higher performance by deepening or widening the model. They obtain the multi-scale features…

计算机视觉与模式识别 · 计算机科学 2024-02-19 Zhifeng Ma , Hao Zhang , Jie Liu

Spiking neural networks (SNNs) have garnered significant attention for their low power consumption and high biological interpretability. Their rich spatio-temporal information processing capability and event-driven nature make them ideally…

计算机视觉与模式识别 · 计算机科学 2024-09-20 Xian Zhong , Shengwang Hu , Wenxuan Liu , Wenxin Huang , Jianhao Ding , Zhaofei Yu , Tiejun Huang

Inspired by recent advances in neural machine translation, that jointly align and translate using encoder-decoder networks equipped with attention, we propose an attentionbased LSTM model for human activity recognition. Our model jointly…

计算机视觉与模式识别 · 计算机科学 2017-09-01 Atousa Torabi , Leonid Sigal

Iterative methods are ubiquitous in large-scale scientific computing applications, and a number of approaches based on meta-learning have been recently proposed to accelerate them. However, a systematic study of these approaches and how…

数值分析 · 数学 2023-01-31 Sohei Arisaka , Qianxiao Li

In many sequential tasks, a model needs to remember relevant events from the distant past to make correct predictions. Unfortunately, a straightforward application of gradient based training requires intermediate computations to be stored…

机器学习 · 计算机科学 2023-08-14 Artyom Sorokin , Nazar Buzun , Leonid Pugachev , Mikhail Burtsev

Clinical medical data, especially in the intensive care unit (ICU), consist of multivariate time series of observations. For each patient visit (or episode), sensor data and lab test results are recorded in the patient's Electronic Health…

机器学习 · 计算机科学 2017-03-23 Zachary C. Lipton , David C. Kale , Charles Elkan , Randall Wetzel

The human brain constantly learns and rapidly adapts to new situations by integrating acquired knowledge and experiences into memory. Developing this capability in machine learning models is considered an important goal of AI research since…

Irregularly sampled time series are increasingly prevalent, particularly in medical domains. While various specialized methods have been developed to handle these irregularities, effectively modeling their complex dynamics and pronounced…

机器学习 · 计算机科学 2023-11-01 Zekun Li , Shiyang Li , Xifeng Yan

This study compares sequential image classification methods based on recurrent neural networks. We describe methods based on recurrent neural networks such as Long-Short-Term memory(LSTM), bidirectional Long-Short-Term memory(BiLSTM)…

图像与视频处理 · 电气工程与系统科学 2022-09-26 Gajraj Kuldeep

Spatial transformer network has been used in a layered form in conjunction with a convolutional network to enable the model to transform data spatially. In this paper, we propose a combined spatial transformer network (STN) and a Long…

图像与视频处理 · 电气工程与系统科学 2019-09-02 Shiyang Feng , Tianyue Chen , Hao Sun

Multiscale is a hallmark feature of complex nonlinear systems. While the simulation using the classical numerical methods is restricted by the local \textit{Taylor} series constraints, the multiscale techniques are often limited by finding…

动力系统 · 数学 2024-05-07 Asif Hamid , Danish Rafiq , Shahkar Ahmad Nahvi , Mohammad Abid Bazaz

The video-based person re-identification is to recognize a person under different cameras, which is a crucial task applied in visual surveillance system. Most previous methods mainly focused on the feature of full body in the frame. In this…

计算机视觉与模式识别 · 计算机科学 2018-07-04 Jie Liu , Cheng Sun , Xiang Xu , Baomin Xu , Shuangyuan Yu

Thompson sampling (TS) has emerged as a robust technique for contextual bandit problems. However, TS requires posterior inference and optimization for action generation, prohibiting its use in many online platforms where latency and ease of…

机器学习 · 计算机科学 2024-07-23 Hongseok Namkoong , Samuel Daulton , Eytan Bakshy

In this paper, we present Gamma-LSTM, an enhanced long short term memory (LSTM) unit, to enable learning of hierarchical representations through multiple stages of temporal abstractions. Gamma memory, a hierarchical memory unit, forms the…

机器学习 · 计算机科学 2019-10-29 Sneha Aenugu

Transferring existing image-based detectors to the video is non-trivial since the quality of frames is always deteriorated by part occlusion, rare pose, and motion blur. Previous approaches exploit to propagate and aggregate features across…

计算机视觉与模式识别 · 计算机科学 2020-07-17 Zhengkai Jiang , Yu Liu , Ceyuan Yang , Jihao Liu , Peng Gao , Qian Zhang , Shiming Xiang , Chunhong Pan