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Despite the advent of deep learning in computer vision, the general handwriting recognition problem is far from solved. Most existing approaches focus on handwriting datasets that have clearly written text and carefully segmented labels. In…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Hai Pham , Amrith Setlur , Saket Dingliwal , Tzu-Hsiang Lin , Barnabas Poczos , Kang Huang , Zhuo Li , Jae Lim , Collin McCormack , Tam Vu

Modern computer vision (CV) is often based on convolutional neural networks (CNNs) that excel at hierarchical feature extraction. The previous generation of CV approaches was often based on conditional random fields (CRFs) that excel at…

Computer Vision and Pattern Recognition · Computer Science 2019-12-09 Shaofei Wang , Vishnu Lokhande , Maneesh Singh , Konrad Kording , Julian Yarkony

This paper addresses semantic image segmentation by incorporating rich information into Markov Random Field (MRF), including high-order relations and mixture of label contexts. Unlike previous works that optimized MRFs using iterative…

Computer Vision and Pattern Recognition · Computer Science 2015-09-25 Ziwei Liu , Xiaoxiao Li , Ping Luo , Chen Change Loy , Xiaoou Tang

Text in natural images contains rich semantics that are often highly relevant to objects or scene. In this paper, we focus on the problem of fully exploiting scene text for visual understanding. The main idea is combining word…

Computer Vision and Pattern Recognition · Computer Science 2017-05-31 Xiang Bai , Mingkun Yang , Pengyuan Lyu , Yongchao Xu , Jiebo Luo

A conditional random field (CRF) model for cloud detection in ground based sky images is presented. We show that very high cloud detection accuracy can be achieved by combining a discriminative classifier and a higher order clique potential…

Image and Video Processing · Electrical Eng. & Systems 2019-06-19 Vijai T. Jayadevan , Jeffrey J. Rodriguez , Alexander D. Cronin

Structure learning of Conditional Random Fields (CRFs) can be cast into an L1-regularized optimization problem. To avoid optimizing over a fully linked model, gain-based or gradient-based feature selection methods start from an empty model…

Machine Learning · Computer Science 2014-07-01 Ni Lao , Jun Zhu

In this paper, we propose a context-aware keyword spotting model employing a character-level recurrent neural network (RNN) for spoken term detection in continuous speech. The RNN is end-to-end trained with connectionist temporal…

Computation and Language · Computer Science 2015-12-31 Kyuyeon Hwang , Minjae Lee , Wonyong Sung

Recent trends in image understanding have pushed for holistic scene understanding models that jointly reason about various tasks such as object detection, scene recognition, shape analysis, contextual reasoning, and local appearance based…

Computer Vision and Pattern Recognition · Computer Science 2014-06-17 Roozbeh Mottaghi , Sanja Fidler , Alan Yuille , Raquel Urtasun , Devi Parikh

Deep learning expresses a category of machine learning algorithms that have the capability to combine raw inputs into intermediate features layers. These deep learning algorithms have demonstrated great results in different fields. Deep…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Sukhdeep Singh , Sudhir Rohilla , Anuj Sharma

State-of-the-art models for joint entity recognition and relation extraction strongly rely on external natural language processing (NLP) tools such as POS (part-of-speech) taggers and dependency parsers. Thus, the performance of such joint…

Computation and Language · Computer Science 2018-12-18 Giannis Bekoulis , Johannes Deleu , Thomas Demeester , Chris Develder

Superpixel-based Higher-order Conditional random fields (SP-HO-CRFs) are known for their effectiveness in enforcing both short and long spatial contiguity for pixelwise labelling in computer vision. However, their higher-order potentials…

Computer Vision and Pattern Recognition · Computer Science 2018-04-09 Li Sulimowicz , Ishfaq Ahmad , Alexander Aved

Automatic facial expression classification (FER) from videos is a critical problem for the development of intelligent human-computer interaction systems. Still, it is a challenging problem that involves capturing high-dimensional…

Computer Vision and Pattern Recognition · Computer Science 2016-07-22 Arnaud Dapogny , Kévin Bailly , Séverine Dubuisson

Learning powerful discriminative features for remote sensing image scene classification is a challenging computer vision problem. In the past, most classification approaches were based on handcrafted features. However, most recent…

Computer Vision and Pattern Recognition · Computer Science 2019-02-22 Jun Li , Daoyu Lin , Yang Wang , Guangluan Xu , Chibiao Ding

Recent advances in deep learning based large vocabulary con- tinuous speech recognition (LVCSR) invoke growing demands in large scale speech transcription. The inference process of a speech recognizer is to find a sequence of labels whose…

Computation and Language · Computer Science 2018-08-03 Zhehuai Chen

In recent studies in hyperspectral imaging, biometrics and energy analytics, the framework of deep dictionary learning has shown promise. Deep dictionary learning outperforms other traditional deep learning tools when training data is…

Image and Video Processing · Electrical Eng. & Systems 2019-12-24 Vanika Singhal , Angshul Majumdar

Recently it has shown that the policy-gradient methods for reinforcement learning have been utilized to train deep end-to-end systems on natural language processing tasks. What's more, with the complexity of understanding image content and…

Computer Vision and Pattern Recognition · Computer Science 2018-09-14 Haichao Shi , Peng Li , Bo Wang , Zhenyu Wang

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…

Audio and Speech Processing · Electrical Eng. & Systems 2020-09-24 Yanxin Hu , Yun Liu , Shubo Lv , Mengtao Xing , Shimin Zhang , Yihui Fu , Jian Wu , Bihong Zhang , Lei Xie

Deep reinforcement learning (deep RL) is a combination of deep learning with reinforcement learning principles to create efficient methods that can learn by interacting with its environment. This led to breakthroughs in many complex tasks…

Sound · Computer Science 2019-10-29 Thejan Rajapakshe , Rajib Rana , Siddique Latif , Sara Khalifa , Björn W. Schuller

Low-resource named entity recognition is still an open problem in NLP. Most state-of-the-art systems require tens of thousands of annotated sentences in order to obtain high performance. However, for most of the world's languages, it is…

Computation and Language · Computer Science 2024-04-16 Ryan Cotterell , Kevin Duh

Trans-dimensional random field language models (TRF LMs) have recently been introduced, where sentences are modeled as a collection of random fields. The TRF approach has been shown to have the advantages of being computationally more…

Computation and Language · Computer Science 2017-09-20 Bin Wang , Zhijian Ou
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