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Sequence labeling for extraction of medical events and their attributes from unstructured text in Electronic Health Record (EHR) notes is a key step towards semantic understanding of EHRs. It has important applications in health informatics…

计算与语言 · 计算机科学 2016-07-13 Abhyuday Jagannatha , Hong Yu

The standard training method of Conditional Random Fields (CRFs) is very slow for large-scale applications. As an alternative, piecewise training divides the full graph into pieces, trains them independently, and combines the learned…

机器学习 · 计算机科学 2012-12-05 Zhemin Zhu , Djoerd Hiemstra , Peter Apers , Andreas Wombacher

Neural radiance fields (NeRFs) have emerged as an effective method for novel-view synthesis and 3D scene reconstruction. However, conventional training methods require access to all training views during scene optimization. This assumption…

计算机视觉与模式识别 · 计算机科学 2023-09-07 Ryan Po , Zhengyang Dong , Alexander W. Bergman , Gordon Wetzstein

Speech enhancement has benefited from the success of deep learning in terms of intelligibility and perceptual quality. Conventional time-frequency (TF) domain methods focus on predicting TF-masks or speech spectrum, via a naive convolution…

音频与语音处理 · 电气工程与系统科学 2020-09-24 Yanxin Hu , Yun Liu , Shubo Lv , Mengtao Xing , Shimin Zhang , Yihui Fu , Jian Wu , Bihong Zhang , Lei Xie

Connectionist temporal classification (CTC) is a popular sequence prediction approach for automatic speech recognition that is typically used with models based on recurrent neural networks (RNNs). We explore whether deep convolutional…

计算与语言 · 计算机科学 2018-02-16 Kalpesh Krishna , Liang Lu , Kevin Gimpel , Karen Livescu

Recurrent neural network (RNN) and connectionist temporal classification (CTC) have showed successes in many sequence labeling tasks with the strong ability of dealing with the problems where the alignment between the inputs and the target…

计算机视觉与模式识别 · 计算机科学 2017-10-10 Hongjian Zhan , Qingqing Wang , Yue Lu

Current State-of-the-Art models in Named Entity Recognition (NER) are neural models with a Conditional Random Field (CRF) as the final network layer, and pre-trained "contextual embeddings". The CRF layer is used to facilitate global…

计算与语言 · 计算机科学 2021-03-25 Brian Lester , Daniel Pressel , Amy Hemmeter , Sagnik Ray Choudhury

Recurrent Neural Networks (RNN) received a vast amount of attention last decade. Recently, the architectures of Recurrent AutoEncoders (RAE) found many applications in practice. RAE can extract the semantically valuable information, called…

机器学习 · 计算机科学 2021-06-14 Robert Susik

Recurrent Neural Networks (RNNs) produce state-of-art performance on many machine learning tasks but their demand on resources in terms of memory and computational power are often high. Therefore, there is a great interest in optimizing the…

神经与进化计算 · 计算机科学 2017-02-28 Joachim Ott , Zhouhan Lin , Ying Zhang , Shih-Chii Liu , Yoshua Bengio

Radar pulse streams exhibit increasingly complex temporal patterns and can no longer rely on a purely value-based analysis of the pulse attributes for the purpose of emitter classification. In this paper, we employ Recurrent Neural Networks…

信号处理 · 电气工程与系统科学 2019-11-20 Paolo Notaro , Magdalini Paschali , Carsten Hopke , David Wittmann , Nassir Navab

Linguistic sequence labeling is a general modeling approach that encompasses a variety of problems, such as part-of-speech tagging and named entity recognition. Recent advances in neural networks (NNs) make it possible to build reliable…

计算与语言 · 计算机科学 2017-11-27 Liyuan Liu , Jingbo Shang , Frank F. Xu , Xiang Ren , Huan Gui , Jian Peng , Jiawei Han

Existing deep convolutional neural networks (CNNs) have shown their great success on image classification. CNNs mainly consist of convolutional and pooling layers, both of which are performed on local image areas without considering the…

计算机视觉与模式识别 · 计算机科学 2016-06-29 Zhen Zuo , Bing Shuai , Gang Wang , Xiao Liu , Xingxing Wang , Bing Wang

Recurrent Neural Networks (RNN) have recently achieved the best performance in off-line Handwriting Text Recognition. At the same time, learning RNN by gradient descent leads to slow convergence, and training times are particularly long…

机器学习 · 计算机科学 2013-12-09 Jérôme Louradour , Christopher Kermorvant

We consider higher-order linear-chain conditional random fields (HO-LC-CRFs) for sequence modelling, and use sum-product networks (SPNs) for representing higher-order input- and output-dependent factors. SPNs are a recently introduced class…

机器学习 · 计算机科学 2018-07-09 Martin Ratajczak , Sebastian Tschiatschek , Franz Pernkopf

Automated Facial Expression Recognition (FER) has been a challenging task for decades. Many of the existing works use hand-crafted features such as LBP, HOG, LPQ, and Histogram of Optical Flow (HOF) combined with classifiers such as Support…

计算机视觉与模式识别 · 计算机科学 2020-04-17 Behzad Hasani , Mohammad H. Mahoor

We present an approach to learn a dense pixel-wise labeling from image-level tags. Each image-level tag imposes constraints on the output labeling of a Convolutional Neural Network (CNN) classifier. We propose Constrained CNN (CCNN), a…

计算机视觉与模式识别 · 计算机科学 2015-10-20 Deepak Pathak , Philipp Krähenbühl , Trevor Darrell

Recurrent neural networks (RNNs) such as long short-term memory and gated recurrent units are pivotal building blocks across a broad spectrum of sequence modeling problems. This paper proposes a recurrently controlled recurrent network…

计算与语言 · 计算机科学 2018-11-27 Yi Tay , Luu Anh Tuan , Siu Cheung Hui

Deep neural networks have shown promising results for various clinical prediction tasks such as diagnosis, mortality prediction, predicting duration of stay in hospital, etc. However, training deep networks -- such as those based on…

机器学习 · 计算机科学 2018-07-06 Priyanka Gupta , Pankaj Malhotra , Lovekesh Vig , Gautam Shroff

Despite the success of sequence-to-sequence approaches in automatic speech recognition (ASR) systems, the models still suffer from several problems, mainly due to the mismatch between the training and inference conditions. In the…

计算与语言 · 计算机科学 2018-03-01 Andros Tjandra , Sakriani Sakti , Satoshi Nakamura

We analyze the performance of feedforward vs. recurrent neural network (RNN) architectures and associated training methods for learned frame prediction. To this effect, we trained a residual fully convolutional neural network (FCNN), a…

计算机视觉与模式识别 · 计算机科学 2020-08-17 M. Akin Yilmaz , A. Murat Tekalp