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This article offers an empirical exploration on the use of character-level convolutional networks (ConvNets) for text classification. We constructed several large-scale datasets to show that character-level convolutional networks could…

Machine Learning · Computer Science 2016-04-05 Xiang Zhang , Junbo Zhao , Yann LeCun

Practitioners successfully use hidden Markov chains (HMCs) in different problems for about sixty years. HMCs belong to the family of generative models and they are often compared to discriminative models, like conditional random fields…

Machine Learning · Statistics 2021-11-16 Elie Azeraf , Emmanuel Monfrini , Wojciech Pieczynski

This work presents a novel approach for semi-supervised semantic segmentation. The key element of this approach is our contrastive learning module that enforces the segmentation network to yield similar pixel-level feature representations…

Computer Vision and Pattern Recognition · Computer Science 2021-08-09 Inigo Alonso , Alberto Sabater , David Ferstl , Luis Montesano , Ana C. Murillo

In this work, the case of semantic segmentation on a small image dataset (simulated by 1000 randomly selected images from PASCAL VOC 2012), where only weak supervision signals (scribbles from user interaction) are available is studied.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Ahmadreza Jeddi

In textual information extraction and other sequence labeling tasks it is now common to use recurrent neural networks (such as LSTM) to form rich embedded representations of long-term input co-occurrence patterns. Representation of output…

Computation and Language · Computer Science 2017-08-03 Dung Thai , Shikhar Murty , Trapit Bansal , Luke Vilnis , David Belanger , Andrew McCallum

Fully-connected Conditional Random Field (CRF) is often used as post-processing to refine voxel classification results by encouraging spatial coherence. In this paper, we propose a new end-to-end training method called Posterior-CRF. In…

Computer Vision and Pattern Recognition · Computer Science 2018-11-09 Shuai Chen , Marleen de Bruijne

Semantic Role Labeling (SRL) aims at recognizing the predicate-argument structure of a sentence and can be decomposed into two subtasks: predicate disambiguation and argument labeling. Prior work deals with these two tasks independently,…

Computation and Language · Computer Science 2022-09-07 Nan Wang , Jiwei Li , Yuxian Meng , Xiaofei Sun , Han Qiu , Ziyao Wang , Guoyin Wang , Jun He

Mean field approximation methodology has laid the foundation of modern Continuous Random Field (CRF) based solutions for the refinement of semantic segmentation. In this paper, we propose to relax the hard constraint of mean field…

Computer Vision and Pattern Recognition · Computer Science 2022-02-02 Xi Mo , Xiangyu Chen , Cuncong Zhong , Rui Li , Kaidong Li , Usman Sajid

As bone and air produce weak signals with conventional MR sequences, segmentation of these tissues particularly difficult in MRI. We propose to integrate patch-based anatomical signatures and an auto-context model into a machine learning…

Recognizing multiple labels of images is a practical and challenging task, and significant progress has been made by searching semantic-aware regions and modeling label dependency. However, current methods cannot locate the semantic regions…

Computer Vision and Pattern Recognition · Computer Science 2019-08-21 Tianshui Chen , Muxin Xu , Xiaolu Hui , Hefeng Wu , Liang Lin

Recent works on deep conditional random fields (CRF) have set new records on many vision tasks involving structured predictions. Here we propose a fully-connected deep continuous CRF model for both discrete and continuous labelling…

Computer Vision and Pattern Recognition · Computer Science 2017-04-26 Fayao Liu , Guosheng Lin , Chunhua Shen

Information extraction(IE) is a crucial subfield within natural language processing. In this study, we introduce a Sentence Classification and Named Entity Recognition Multi-task (SCNM) approach that combines Sentence Classification (SC)…

Computation and Language · Computer Science 2023-06-29 Chengguang Gan , Qinghao Zhang , Tatsunori Mori

Multi-label image recognition with partial labels (MLR-PL) is designed to train models using a mix of known and unknown labels. Traditional methods rely on semantic or feature correlations to create pseudo-labels for unidentified labels…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Haoxian Ruan , Zhihua Xu , Zhijing Yang , Guang Ma , Jieming Xie , Changxiang Fan , Tianshui Chen

Continuous sign language recognition (SLR) is a challenging task that requires learning on both spatial and temporal dimensions of signing frame sequences. Most recent work accomplishes this by using CNN and RNN hybrid networks. However,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Ka Leong Cheng , Zhaoyang Yang , Qifeng Chen , Yu-Wing Tai

We study the problem of generating keyphrases that summarize the key points for a given document. While sequence-to-sequence (seq2seq) models have achieved remarkable performance on this task (Meng et al., 2017), model training often relies…

Computation and Language · Computer Science 2019-09-09 Hai Ye , Lu Wang

We consider two models for the sequence labeling (tagging) problem. The first one is a {\em Pattern-Based Conditional Random Field }(\PB), in which the energy of a string (chain labeling) $x=x_1\ldots x_n\in D^n$ is a sum of terms over…

Formal Languages and Automata Theory · Computer Science 2014-11-04 Rustem Takhanov , Vladimir Kolmogorov

We propose a novel and principled hybrid CNN+CRF model for stereo estimation. Our model allows to exploit the advantages of both, convolutional neural networks (CNNs) and conditional random fields (CRFs) in an unified approach. The CNNs…

Computer Vision and Pattern Recognition · Computer Science 2017-05-04 Patrick Knöbelreiter , Christian Reinbacher , Alexander Shekhovtsov , Thomas Pock

This paper proposes a novel weakly-supervised semantic segmentation method using image-level label only. The class-specific activation maps from the well-trained classifiers are used as cues to train a segmentation network. The well-known…

Computer Vision and Pattern Recognition · Computer Science 2019-06-17 Ting Sun , Lei Tai , Zhihan Gao , Ming Liu , Dit-Yan Yeung

Text categorization is the task of assigning labels to documents written in a natural language, and it has numerous real-world applications including sentiment analysis as well as traditional topic assignment tasks. In this paper, we…

Computation and Language · Computer Science 2020-03-05 Changzeng Fu , Chaoran Liu , Carlos Toshinori Ishi , Yuichiro Yoshikawa , Hiroshi Ishiguro

Slot Filling (SF) is one of the sub-tasks of Spoken Language Understanding (SLU) which aims to extract semantic constituents from a given natural language utterance. It is formulated as a sequence labeling task. Recently, it has been shown…

Computation and Language · Computer Science 2020-06-02 Amir Pouran Ben Veyseh , Franck Dernoncourt , Thien Huu Nguyen
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