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A lot of prior work on event extraction has exploited a variety of features to represent events. Such methods have several drawbacks: 1) the features are often specific for a particular domain and do not generalize well; 2) the features are…

Computation and Language · Computer Science 2016-10-05 Yandi Xia , Yang Liu

Event Detection (ED) aims to recognize instances of specified types of event triggers in text. Different from English ED, Chinese ED suffers from the problem of word-trigger mismatch due to the uncertain word boundaries. Existing approaches…

Computation and Language · Computer Science 2023-01-05 Shiyao Cui , Bowen Yu , Xin Cong , Tingwen Liu , Quangang Li , Jinqiao Shi

Traditional event detection methods heavily rely on manually engineered rich features. Recent deep learning approaches alleviate this problem by automatic feature engineering. But such efforts, like tradition methods, have so far only…

Computation and Language · Computer Science 2019-05-21 Reza Ghaeini , Xiaoli Z. Fern , Liang Huang , Prasad Tadepalli

Sequential labeling-based NER approaches restrict each word belonging to at most one entity mention, which will face a serious problem when recognizing nested entity mentions. In this paper, we propose to resolve this problem by modeling…

Computation and Language · Computer Science 2019-06-11 Hongyu Lin , Yaojie Lu , Xianpei Han , Le Sun

Recently, neural network models for natural language processing tasks have been increasingly focused on for their ability of alleviating the burden of manual feature engineering. However, the previous neural models cannot extract the…

Computation and Language · Computer Science 2017-07-04 Xinchi Chen , Xipeng Qiu , Xuanjing Huang

With the rapid development of information technology, online platforms (e.g., news portals and social media) generate enormous web information every moment. Therefore, it is crucial to extract structured representations of events from…

Computation and Language · Computer Science 2021-12-21 Jiangwei Liu , Jingshu Zhang , Xiaohong Huang , Liangyu Min

Event Detection, which aims to identify and classify mentions of event instances from unstructured articles, is an important task in Natural Language Processing (NLP). Existing techniques for event detection only use homogeneous one-hot…

Computation and Language · Computer Science 2022-11-03 Anran Hao , Siu Cheung Hui , Jian Su

Traditional event detection classifies a word or a phrase in a given sentence for a set of predefined event types. The limitation of such predefined set is that it prevents the adaptation of the event detection models to new event types. We…

Machine Learning · Computer Science 2019-10-28 Viet Dac Lai , Thien Huu Nguyen

Named Entity Recognition and Relation Extraction for Chinese literature text is regarded as the highly difficult problem, partially because of the lack of tagging sets. In this paper, we build a discourse-level dataset from hundreds of…

Computation and Language · Computer Science 2019-06-12 Jingjing Xu , Ji Wen , Xu Sun , Qi Su

Chinese input recommendation plays an important role in alleviating human cost in typing Chinese words, especially in the scenario of mobile applications. The fundamental problem is to predict the conditional probability of the next word…

Computation and Language · Computer Science 2019-07-12 Hainan Zhang , Yanyan Lan , Jiafeng Guo , Jun Xu , Xueqi Cheng

The traditional way of sentence-level event detection involves two important subtasks: trigger identification and trigger classifications, where the identified event trigger words are used to classify event types from sentences. However,…

Computation and Language · Computer Science 2023-06-27 Tongtao Ling , Lei Chen , Huangxu Sheng , Zicheng Cai , Hai-Lin Liu

Training neural models for named entity recognition (NER) in a new domain often requires additional human annotations (e.g., tens of thousands of labeled instances) that are usually expensive and time-consuming to collect. Thus, a crucial…

Computation and Language · Computer Science 2020-07-08 Bill Yuchen Lin , Dong-Ho Lee , Ming Shen , Ryan Moreno , Xiao Huang , Prashant Shiralkar , Xiang Ren

Chinese word segmentation is necessary to provide word-level information for Chinese named entity recognition (NER) systems. However, segmentation error propagation is a challenge for Chinese NER while processing colloquial data like social…

Computation and Language · Computer Science 2020-06-16 Shengbin Jia , Ling Ding , Xiaojun Chen , Shijia E , Yang Xiang

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

The previous work for event extraction has mainly focused on the predictions for event triggers and argument roles, treating entity mentions as being provided by human annotators. This is unrealistic as entity mentions are usually predicted…

Computation and Language · Computer Science 2018-12-04 Trung Minh Nguyen , Thien Huu Nguyen

Most of the Chinese pre-trained models adopt characters as basic units for downstream tasks. However, these models ignore the information carried by words and thus lead to the loss of some important semantics. In this paper, we propose a…

Computation and Language · Computer Science 2022-07-14 Wenbiao Li , Rui Sun , Yunfang Wu

Spiking neural networks (SNNs) offer a promising pathway to implement deep neural networks (DNNs) in a more energy-efficient manner since their neurons are sparsely activated and inferences are event-driven. However, there have been very…

Neural and Evolutionary Computing · Computer Science 2024-06-28 Changze Lv , Jianhan Xu , Xiaoqing Zheng

Embedding text sequences is a widespread requirement in modern language understanding. Existing approaches focus largely on constant-size representations. This is problematic, as the amount of information contained in text often varies with…

Computation and Language · Computer Science 2023-10-04 Guanghui Qin , Benjamin Van Durme

Most previous approaches to Chinese word segmentation can be roughly classified into character-based and word-based methods. The former regards this task as a sequence-labeling problem, while the latter directly segments character sequence…

Computation and Language · Computer Science 2017-12-29 Zhiqing Sun , Gehui Shen , Zhihong Deng

Most previous approaches to Chinese word segmentation formalize this problem as a character-based sequence labeling task where only contextual information within fixed sized local windows and simple interactions between adjacent tags can be…

Computation and Language · Computer Science 2016-12-05 Deng Cai , Hai Zhao
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