目前大多数方面级情感分类研究都忽略了方面词的建模,以及方面词与上下文之间的交互信息,并且难以体现语法上与方面词有直接联系上下文单词的重要程度。针对上述问题,提出基于方面词交互(aspect word interaction,AWI)和图卷积网络(grap...目前大多数方面级情感分类研究都忽略了方面词的建模,以及方面词与上下文之间的交互信息,并且难以体现语法上与方面词有直接联系上下文单词的重要程度。针对上述问题,提出基于方面词交互(aspect word interaction,AWI)和图卷积网络(graph convolutional network,GCN)的方面级情感分类模型(AWI-GCN)。使用双向长短期记忆网络(bi-directional long short-term memory,Bi-LSTM)分别提取方面词和上下文的特征;采用GCN根据句法依存树进一步提取与方面词有直接语法联系的上下文情感特征;利用注意力机制学习方面词与上下文的交互信息,同时提取上下文中为方面词情感分类做出重要贡献的情感特征。针对3个公开数据集上的仿真实验结果表明,AWI-GCN模型相比当前代表模型取得了更好的情感分类效果。展开更多
BACKGROUND： Acute poisoning is frequently encountered at emergency department. This study was to investigate the epidemiology and characteristics of patients with acute poisoning who were treated at the Emergency Cen...BACKGROUND： Acute poisoning is frequently encountered at emergency department. This study was to investigate the epidemiology and characteristics of patients with acute poisoning who were treated at the Emergency Center, Fujian Provincial Hospital, China.METHODS： We retrospectively analyzed the gender, age, causes of poisoning, types of poisons, poisoning route, emergency diagnoses, outcomes, and prognoses of these patients.RESULTS： Altogether 2867 patients with acute poisoning were treated from January 2004 to December 2009. The ratio of male to female was 1：1.04, and their average age was 33.8 years. Of the 2867 patients, 76.39% were between 18 and 40 years old. The incidence of acute poisoning was as high as 11.33% in January each year. The incidence of poisoning was in a descending order： alcohol poisoning （54.55%）, medication poisoning （25.95%）, pesticide poisoning （5.65%）, and drug poisoning （4.88%）. Most （56.44%） of the patients with drug poisoning were under 25 years and their mean age was significantly lower than that of patients with medication poisoning or alcohol poisoning （P 〈 0.01）. Approximately 69.54% of the patients were followed up after emergency treatment, 30.39% were hospitalized, and four patients died.CONCLUSION： Acute poisoning is largely alcohol poisoning and medication poisoning in a city. The emergency green channel ＂pre-hospital emergency care-emergency department-hospital treatment＂ can significantly improve the survival rate of patients with acute poisoning.展开更多
文摘目前大多数方面级情感分类研究都忽略了方面词的建模,以及方面词与上下文之间的交互信息,并且难以体现语法上与方面词有直接联系上下文单词的重要程度。针对上述问题,提出基于方面词交互(aspect word interaction,AWI)和图卷积网络(graph convolutional network,GCN)的方面级情感分类模型(AWI-GCN)。使用双向长短期记忆网络(bi-directional long short-term memory,Bi-LSTM)分别提取方面词和上下文的特征;采用GCN根据句法依存树进一步提取与方面词有直接语法联系的上下文情感特征;利用注意力机制学习方面词与上下文的交互信息,同时提取上下文中为方面词情感分类做出重要贡献的情感特征。针对3个公开数据集上的仿真实验结果表明,AWI-GCN模型相比当前代表模型取得了更好的情感分类效果。
文摘BACKGROUND： Acute poisoning is frequently encountered at emergency department. This study was to investigate the epidemiology and characteristics of patients with acute poisoning who were treated at the Emergency Center, Fujian Provincial Hospital, China.METHODS： We retrospectively analyzed the gender, age, causes of poisoning, types of poisons, poisoning route, emergency diagnoses, outcomes, and prognoses of these patients.RESULTS： Altogether 2867 patients with acute poisoning were treated from January 2004 to December 2009. The ratio of male to female was 1：1.04, and their average age was 33.8 years. Of the 2867 patients, 76.39% were between 18 and 40 years old. The incidence of acute poisoning was as high as 11.33% in January each year. The incidence of poisoning was in a descending order： alcohol poisoning （54.55%）, medication poisoning （25.95%）, pesticide poisoning （5.65%）, and drug poisoning （4.88%）. Most （56.44%） of the patients with drug poisoning were under 25 years and their mean age was significantly lower than that of patients with medication poisoning or alcohol poisoning （P 〈 0.01）. Approximately 69.54% of the patients were followed up after emergency treatment, 30.39% were hospitalized, and four patients died.CONCLUSION： Acute poisoning is largely alcohol poisoning and medication poisoning in a city. The emergency green channel ＂pre-hospital emergency care-emergency department-hospital treatment＂ can significantly improve the survival rate of patients with acute poisoning.
