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Translating characters instead of words or word-fragments has the potential to simplify the processing pipeline for neural machine translation (NMT), and improve results by eliminating hyper-parameters and manual feature engineering.…

Computation and Language · Computer Science 2018-08-30 Colin Cherry , George Foster , Ankur Bapna , Orhan Firat , Wolfgang Macherey

Intent classification has been widely researched on English data with deep learning approaches that are based on neural networks and word embeddings. The challenge for Chinese intent classification stems from the fact that, unlike English…

Computation and Language · Computer Science 2018-05-24 Ruixi Lin , Charles Costello , Charles Jankowski

Character-based neural models have recently proven very useful for many NLP tasks. However, there is a gap of sophistication between methods for learning representations of sentences and words. While most character models for learning…

Computation and Language · Computer Science 2018-10-31 Yingwei Xin , Ethan Hart , Vibhuti Mahajan , Jean-David Ruvini

We present Charagram embeddings, a simple approach for learning character-based compositional models to embed textual sequences. A word or sentence is represented using a character n-gram count vector, followed by a single nonlinear…

Computation and Language · Computer Science 2016-07-12 John Wieting , Mohit Bansal , Kevin Gimpel , Karen Livescu

Recurrent Neural Networks (RNN), Long Short-Term Memory Networks (LSTM), and Memory Networks which contain memory are popularly used to learn patterns in sequential data. Sequential data has long sequences that hold relationships. RNN can…

Computation and Language · Computer Science 2019-04-22 Anupiya Nugaliyadde , Kok Wai Wong , Ferdous Sohel , Hong Xie

Named entity recognition, and other information extraction tasks, frequently use linguistic features such as part of speech tags or chunkings. For languages where word boundaries are not readily identified in text, word segmentation is a…

Computation and Language · Computer Science 2017-03-30 Nanyun Peng , Mark Dredze

Most existing Neural Machine Translation models use groups of characters or whole words as their unit of input and output. We propose a model with a hierarchical char2word encoder, that takes individual characters both as input and output.…

Computation and Language · Computer Science 2016-10-21 Alexander Rosenberg Johansen , Jonas Meinertz Hansen , Elias Khazen Obeid , Casper Kaae Sønderby , Ole Winther

Prior methods to text segmentation are mostly at token level. Despite the adequacy, this nature limits their full potential to capture the long-term dependencies among segments. In this work, we propose a novel framework that incrementally…

Computation and Language · Computer Science 2021-04-16 Yangming Li , Lemao Liu , Kaisheng Yao

Neural models with minimal feature engineering have achieved competitive performance against traditional methods for the task of Chinese word segmentation. However, both training and working procedures of the current neural models are…

Computation and Language · Computer Science 2017-04-25 Deng Cai , Hai Zhao , Zhisong Zhang , Yuan Xin , Yongjian Wu , Feiyue Huang

Recent deep learning based approaches have achieved great success on handwriting recognition. Chinese characters are among the most widely adopted writing systems in the world. Previous research has mainly focused on recognizing handwritten…

Computer Vision and Pattern Recognition · Computer Science 2016-06-22 Xu-Yao Zhang , Fei Yin , Yan-Ming Zhang , Cheng-Lin Liu , Yoshua Bengio

When comparing human with artificial intelligence, one major difference is apparent: Humans can generalize very broadly from sparse data sets because they are able to recombine and reintegrate data components in compositional manners. To…

Machine Learning · Computer Science 2020-10-21 Sarah Fabi , Sebastian Otte , Jonas Gregor Wiese , Martin V. Butz

The chain-structured long short-term memory (LSTM) has showed to be effective in a wide range of problems such as speech recognition and machine translation. In this paper, we propose to extend it to tree structures, in which a memory cell…

Computation and Language · Computer Science 2015-03-18 Xiaodan Zhu , Parinaz Sobhani , Hongyu Guo

Pretrained language models (PLMs) have shown marvelous improvements across various NLP tasks. Most Chinese PLMs simply treat an input text as a sequence of characters, and completely ignore word information. Although Whole Word Masking can…

Computation and Language · Computer Science 2023-03-23 Xinnian Liang , Zefan Zhou , Hui Huang , Shuangzhi Wu , Tong Xiao , Muyun Yang , Zhoujun Li , Chao Bian

Hierarchical Multiscale LSTM (Chung et al., 2016a) is a state-of-the-art language model that learns interpretable structure from character-level input. Such models can provide fertile ground for (cognitive) computational linguistics…

Computation and Language · Computer Science 2018-07-11 Ákos Kádár , Marc-Alexandre Côté , Grzegorz Chrupała , Afra Alishahi

Neural network has become the dominant method for Chinese word segmentation. Most existing models cast the task as sequence labeling, using BiLSTM-CRF for representing the input and making output predictions. Recently, attention-based…

Computation and Language · Computer Science 2019-07-29 Leilei Gan , Yue Zhang

Chinese character decomposition has been used as a feature to enhance Machine Translation (MT) models, combining radicals into character and word level models. Recent work has investigated ideograph or stroke level embedding. However,…

Computation and Language · Computer Science 2021-04-12 Lifeng Han , Gareth J. F. Jones , Alan F. Smeaton , Paolo Bolzoni

One-hot CNN (convolutional neural network) has been shown to be effective for text categorization (Johnson & Zhang, 2015). We view it as a special case of a general framework which jointly trains a linear model with a non-linear feature…

Machine Learning · Statistics 2016-05-27 Rie Johnson , Tong Zhang

State-of-the-art named entity recognition systems rely heavily on hand-crafted features and domain-specific knowledge in order to learn effectively from the small, supervised training corpora that are available. In this paper, we introduce…

Computation and Language · Computer Science 2016-04-08 Guillaume Lample , Miguel Ballesteros , Sandeep Subramanian , Kazuya Kawakami , Chris Dyer

Recently, word enhancement has become very popular for Chinese Named Entity Recognition (NER), reducing segmentation errors and increasing the semantic and boundary information of Chinese words. However, these methods tend to ignore the…

Computation and Language · Computer Science 2021-07-13 Shuang Wu , Xiaoning Song , Zhenhua Feng

Recurrent neural networks (RNNs), especially long short-term memory (LSTM) RNNs, are effective network for sequential task like speech recognition. Deeper LSTM models perform well on large vocabulary continuous speech recognition, because…

Computation and Language · Computer Science 2017-03-22 Xu Tian , Jun Zhang , Zejun Ma , Yi He , Juan Wei , Peihao Wu , Wenchang Situ , Shuai Li , Yang Zhang