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Traditional approaches in speech emotion recognition, such as LSTM, CNN, RNN, SVM, and MLP, have limitations such as difficulty capturing long-term dependencies in sequential data, capturing the temporal dynamics, and struggling to capture…

声音 · 计算机科学 2023-08-10 Samiul Islam , Md. Maksudul Haque , Abu Jobayer Md. Sadat

Event extraction requires high-quality expert human annotations, which are usually expensive. Therefore, learning a data-efficient event extraction model that can be trained with only a few labeled examples has become a crucial challenge.…

计算与语言 · 计算机科学 2022-05-05 I-Hung Hsu , Kuan-Hao Huang , Elizabeth Boschee , Scott Miller , Prem Natarajan , Kai-Wei Chang , Nanyun Peng

This paper presents a contextualized graph attention network that combines edge features and multiple sub-graphs for improving relation extraction. A novel method is proposed to use multiple sub-graphs to learn rich node representations in…

计算与语言 · 计算机科学 2020-04-23 Angrosh Mandya , Danushka Bollegala , Frans Coenen

Background: Automatic extraction of chemical-disease relations (CDR) from unstructured text is of essential importance for disease treatment and drug development. Meanwhile, biomedical experts have built many highly-structured knowledge…

计算与语言 · 计算机科学 2019-12-24 Huiwei Zhou , Chengkun Lang , Zhuang Liu , Shixian Ning , Yingyu Lin , Lei Du

Extracting informative arguments of events from news articles is a challenging problem in information extraction, which requires a global contextual understanding of each document. While recent work on document-level extraction has gone…

计算与语言 · 计算机科学 2022-09-20 Xinya Du , Sha Li , Heng Ji

Named entity recognition (NER), which focuses on the extraction of semantically meaningful named entities and their semantic classes from text, serves as an indispensable component for several down-stream natural language processing (NLP)…

计算与语言 · 计算机科学 2018-10-23 Zhanming Jie , Aldrian Obaja Muis , Wei Lu

Temporal knowledge graph, serving as an effective way to store and model dynamic relations, shows promising prospects in event forecasting. However, most temporal knowledge graph reasoning methods are highly dependent on the recurrence or…

人工智能 · 计算机科学 2022-12-05 Yi Xu , Junjie Ou , Hui Xu , Luoyi Fu

Learning hidden topics from data streams has become absolutely necessary but posed challenging problems such as concept drift as well as short and noisy data. Using prior knowledge to enrich a topic model is one of potential solutions to…

机器学习 · 计算机科学 2021-12-28 Ngo Van Linh , Tran Xuan Bach , Khoat Than

Graph convolution network (GCN) attracts intensive research interest with broad applications. While existing work mainly focused on designing novel GCN architectures for better performance, few of them studied a practical yet challenging…

机器学习 · 计算机科学 2020-10-16 Xiaoming Liu , Qirui Li , Chao Shen , Xi Peng , Yadong Zhou , Xiaohong Guan

Event Extraction plays an important role in information-extraction to understand the world. Event extraction could be split into two subtasks: one is event trigger extraction, the other is event arguments extraction. However, the F-Score of…

计算与语言 · 计算机科学 2020-06-04 Zhigang Kan , Linbo Qiao , Sen Yang , Feng Liu , Feng Huang

We propose an approach to predict the natural gas price in several days using historical price data and events extracted from news headlines. Most previous methods treats price as an extrapolatable time series, those analyze the relation…

计算与语言 · 计算机科学 2020-06-02 Minh Triet Chau , Diego Esteves , Jens Lehmann

Event Argument extraction refers to the task of extracting structured information from unstructured text for a particular event of interest. The existing works exhibit poor capabilities to extract causal event arguments like Reason and…

计算与语言 · 计算机科学 2021-05-04 Debanjana Kar , Sudeshna Sarkar , Pawan Goyal

The goal of Event Argument Extraction (EAE) is to find the role of each entity mention for a given event trigger word. It has been shown in the previous works that the syntactic structures of the sentences are helpful for the deep learning…

计算与语言 · 计算机科学 2020-10-27 Amir Pouran Ben Veyseh , Tuan Ngo Nguyen , Thien Huu Nguyen

Social media becomes the central way for people to obtain and utilise news, due to its rapidness and inexpensive value of data distribution. Though, such features of social media platforms also present it a root cause of fake news…

社会与信息网络 · 计算机科学 2021-09-29 Priyanka Meel , Dinesh Kumar Vishwakarma

Most of existing correspondence pruning methods only concentrate on gathering the context information as much as possible while neglecting effective ways to utilize such information. In order to tackle this dilemma, in this paper we propose…

计算机视觉与模式识别 · 计算机科学 2023-12-27 Junwen Guo , Guobao Xiao , Shiping Wang , Jun Yu

We present a simple and effective approach to incorporating syntactic structure into neural attention-based encoder-decoder models for machine translation. We rely on graph-convolutional networks (GCNs), a recent class of neural networks…

计算与语言 · 计算机科学 2020-06-22 Jasmijn Bastings , Ivan Titov , Wilker Aziz , Diego Marcheggiani , Khalil Sima'an

Event mentions in text correspond to real-world events of varying degrees of granularity. The task of subevent detection aims to resolve this granularity issue, recognizing the membership of multi-granular events in event complexes. Since…

计算与语言 · 计算机科学 2021-09-15 Haoyu Wang , Hongming Zhang , Muhao Chen , Dan Roth

Most existing re-identification methods focus on learning robust and discriminative features with deep convolution networks. However, many of them consider content similarity separately and fail to utilize the context information of the…

计算机视觉与模式识别 · 计算机科学 2021-03-18 Deyi Ji , Haoran Wang , Hanzhe Hu , Weihao Gan , Wei Wu , Junjie Yan

Text classification aims to assign labels to textual units by making use of global information. Recent studies have applied graph neural network (GNN) to capture the global word co-occurrence in a corpus. Existing approaches require that…

计算与语言 · 计算机科学 2022-06-02 Kunze Wang , Soyeon Caren Han , Josiah Poon

Graph convolutional networks (GCNs) have achieved huge success in several machine learning (ML) tasks on graph-structured data. Recently, several sampling techniques have been proposed for the efficient training of GCNs and to improve the…