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This paper is motivated by the automation of neuropsychological tests involving discourse analysis in the retellings of narratives by patients with potential cognitive impairment. In this scenario the task of sentence boundary detection in…

计算与语言 · 计算机科学 2017-08-17 Marcos V. Treviso , Christopher D. Shulby , Sandra M. Aluisio

Event Detection (ED) is the task of identifying and classifying trigger words of event mentions in text. Despite considerable research efforts in recent years for English text, the task of ED in other languages has been significantly less…

计算与语言 · 计算机科学 2022-11-21 Amir Pouran Ben Veyseh , Minh Van Nguyen , Franck Dernoncourt , Thien Huu Nguyen

It is very critical to analyze messages shared over social networks for cyber threat intelligence and cyber-crime prevention. In this study, we propose a method that leverages both domain-specific word embeddings and task-specific features…

Event extraction (EE) is a crucial research task for promptly apprehending event information from massive textual data. With the rapid development of deep learning, EE based on deep learning technology has become a research hotspot.…

计算与语言 · 计算机科学 2022-11-16 Qian Li , Jianxin Li , Jiawei Sheng , Shiyao Cui , Jia Wu , Yiming Hei , Hao Peng , Shu Guo , Lihong Wang , Amin Beheshti , Philip S. Yu

This paper demonstrates the potential of convolutional neural networks (CNN) for detecting and classifying prosodic events on words, specifically pitch accents and phrase boundary tones, from frame-based acoustic features. Typical…

计算与语言 · 计算机科学 2017-06-05 Sabrina Stehwien , Ngoc Thang Vu

Many previous methods have showed the importance of considering semantically relevant objects for performing event recognition, yet none of the methods have exploited the power of deep convolutional neural networks to directly integrate…

计算机视觉与模式识别 · 计算机科学 2017-03-23 Sungmin Eum , Hyungtae Lee , Heesung Kwon , David Doermann

Detecting events and classifying them into predefined types is an important step in knowledge extraction from natural language texts. While the neural network models have generally led the state-of-the-art, the differences in performance…

计算与语言 · 计算机科学 2018-08-28 J. Walker Orr , Prasad Tadepalli , Xiaoli Fern

In this paper, we introduce an event-driven trading strategy that predicts stock movements by detecting corporate events from news articles. Unlike existing models that utilize textual features (e.g., bag-of-words) and sentiments to…

计算与语言 · 计算机科学 2021-05-31 Zhihan Zhou , Liqian Ma , Han Liu

Recent advances in Named Entity Recognition (NER) show that document-level contexts can significantly improve model performance. In many application scenarios, however, such contexts are not available. In this paper, we propose to find…

计算与语言 · 计算机科学 2022-12-09 Xinyu Wang , Yong Jiang , Nguyen Bach , Tao Wang , Zhongqiang Huang , Fei Huang , Kewei Tu

The contextual word embedding model, BERT, has proved its ability on downstream tasks with limited quantities of annotated data. BERT and its variants help to reduce the burden of complex annotation work in many interdisciplinary research…

计算与语言 · 计算机科学 2022-04-07 Gechuan Zhang , Paul Nulty , David Lillis

Word embeddings represent a transformative technology for analyzing text data in social work research, offering sophisticated tools for understanding case notes, policy documents, research literature, and other text-based materials. This…

计算与语言 · 计算机科学 2024-11-12 Brian E. Perron , Kelley A. Rivenburgh , Bryan G. Victor , Zia Qi , Hui Luan

Most existing named entity recognition (NER) approaches are based on sequence labeling models, which focus on capturing the local context dependencies. However, the way of taking one sentence as input prevents the modeling of non-sequential…

计算与语言 · 计算机科学 2021-06-03 Zanbo Wang , Wei Wei , Xianling Mao , Shanshan Feng , Pan Zhou , Zhiyong He , Sheng Jiang

Usually gradual and continuous changes in entities will lead to appear events. But usually it is supposed that an event is occurred at once. In this research an integrated framework called continuous occurrence theory (COT) is presented to…

人工智能 · 计算机科学 2016-11-14 Abdorrahman Haeri

The brain electrical activity presents several short events during sleep that can be observed as distinctive micro-structures in the electroencephalogram (EEG), such as sleep spindles and K-complexes. These events have been associated with…

信号处理 · 电气工程与系统科学 2020-10-06 Nicolás I. Tapia , Pablo A. Estévez

Detecting out-of-distribution (OOD) instances is significant for the safe deployment of NLP models. Among recent textual OOD detection works based on pretrained language models (PLMs), distance-based methods have shown superior performance.…

计算与语言 · 计算机科学 2022-10-17 Sishuo Chen , Xiaohan Bi , Rundong Gao , Xu Sun

Contextualized word embeddings (CWE) such as provided by ELMo (Peters et al., 2018), Flair NLP (Akbik et al., 2018), or BERT (Devlin et al., 2019) are a major recent innovation in NLP. CWEs provide semantic vector representations of words…

计算与语言 · 计算机科学 2019-10-02 Gregor Wiedemann , Steffen Remus , Avi Chawla , Chris Biemann

Leveraging the high temporal resolution and dynamic range, object detection with event cameras can enhance the performance and safety of automotive and robotics applications in real-world scenarios. However, processing sparse event data…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Shenqi Wang , Yingfu Xu , Amirreza Yousefzadeh , Sherif Eissa , Henk Corporaal , Federico Corradi , Guangzhi Tang

Recent works show that the graph structure of sentences, generated from dependency parsers, has potential for improving event detection. However, they often only leverage the edges (dependencies) between words, and discard the dependency…

计算与语言 · 计算机科学 2021-05-06 Sanghamitra Dutta , Liang Ma , Tanay Kumar Saha , Di Lu , Joel Tetreault , Alejandro Jaimes

Fully understanding narratives often requires identifying events in the context of whole documents and modeling the event relations. However, document-level event extraction is a challenging task as it requires the extraction of event and…

计算与语言 · 计算机科学 2021-05-11 Kung-Hsiang Huang , Nanyun Peng

Semantic embedding of knowledge graphs has been widely studied and used for prediction and statistical analysis tasks across various domains such as Natural Language Processing and the Semantic Web. However, less attention has been paid to…

人工智能 · 计算机科学 2021-01-26 Jiaoyan Chen , Pan Hu , Ernesto Jimenez-Ruiz , Ole Magnus Holter , Denvar Antonyrajah , Ian Horrocks