基于深度学习的中文专利自动分类方法研究   总被引：2，自引：0，他引：2  

吕璐成  韩涛  周健  赵亚娟 《图书情报工作》2020,64(10):75-85

[目的/意义] 面向当前国内专利审查和专利情报分析工作中对于海量专利分类的客观需求，设计了7种基于深度学习的专利自动分类方法，对比各种方法的分类效果，从而助力专利分类效率和效果的提升。[方法/过程] 针对传统机器学习方法存在的缺陷，基于Word2Vec、CNN、RNN、Attention机制等深度学习技术，考虑专利文本语序特征、上下文特征以及分类关键特征，设计Word2Vec+TextCNN、Word2Vec+GRU、Word2Vec+BiGRU、Word2Vec+BiGRU+TextCNN等7种深度学习模型，以中国专利为例，选取IPC主分类号的"部"作为分类依据，对比这7种模型与3种传统分类模型在中文专利分类任务中的效果。[结果/结论] 实证研究效果显示，采用考虑语序特征、上下文特征及强化关键特征的深度学习方法进行中文专利分类具有更优的分类效果。  相似文献   

Isolation and characterization of a novel strain (YH01) of Micropterus salmoides rhabdovirus and expression of its glycoprotein by the baculovirus expression system     

Lyu  Sun-jian  Yuan  Xue-mei  Zhang  Hai-qi  Shi  Wei-da  Hang  Xiao-ying  Liu  Li  Wu  Ying-lei 《Journal of Zhejiang University. Science. B》2019,20(9):728-739

Journal of Zhejiang University-SCIENCE B - As one of the most important aquatic fish, Micropterus salmoides suffers lethal and epidemic disease caused by rhabdovirus at the juvenile stage. In this...  相似文献   

基于实践本体论的嵌入式档案开发服务探析——以北京师范大学档案实践为例     

杨桂明  许凤姣  陈新  罗明书 《档案学通讯》2020,(2):67-71

新形势下学科交叉融合、行业协同创新,给档案开发服务带来了新的研究视角。从实践本体论和嵌入性理论两个方面分析"嵌入式"档案开发服务的理论基础和方法论指导,阐述嵌入式档案开发服务的实现模式,从环境嵌入、组织嵌入、政治嵌入、文化嵌入、系统嵌入等层面指出具体实践路径,以期能为同行提供具有可操作性的思路与参考。  相似文献   

Learning Acetabular Fracture Classification using a Three-Dimensional Interactive Software: A Randomized Controlled Trial     

Huixiang Wang  Fei Lyu  Kapil Sugand  Sheungting Wong  Yanping Lin  Qiugen Wang 《Anatomical sciences education》2019,12(6):655-663

Acetabular fractures are a real challenge for junior doctors as well as experienced orthopedic surgeons. Correct fracture classification is crucial for appreciating the fracture type, surgical planning, and predicting prognosis. Although three-dimensional (3D) tutorial is believed to improve the understanding of the complex anatomy structure, there have been few applications and randomized controlled trials to confirm it in orthopedics. This study aims to develop a 3D interactive software system for teaching acetabular fracture classification and evaluate its efficacy. Participants were randomly but evenly allocated into either the experimental group (who learned the acetabular fracture classification using a 3D software) or the control group (who used a traditional two-dimensional [2D] tutorial). Both groups were then tasked to classify 10 acetabular fractures and complete a five-point Likert scale on their satisfaction of each learning modality. To calculate significance (P < 0.05), independent t-test was used for normally distributed data whereas Mann-Whitney U test for non-normally distributed data. The experimental group significantly outperformed the control group (t (28) = 2.526, P = 0.017) with identifying correct acetabular fracture classification. Moreover, Likert scale score in the experimental group was also significantly higher than in the control group (Z = 2.477, P = 0.013). This 3D classification software has objectively and subjectively showed an advantage over the traditional 2D tutorial, resulting in an improved classification accuracy and higher Likert scale score. The 3D software has the potential to improve both clinical knowledge as well as identifying correct patient management in orthopedics.  相似文献   

环境工程专业“环境化学”课程双语教学改革的实践与思考     

吕聪  董招君  牛姝  张凤君  董双石 《科教文汇》2020,(13):70-71

双语教学是我国高校建设双一流大学的重要途径。本文结合环境工程专业的特点和人才培养需求,分析了环境化学课程双语教学的必要性和存在的问题,提出了启发-递进式教学模式、优选英文教材、优化教学内容、构建网络平台和建立多元化考核制等多种方法相结合的教学改革措施。  相似文献   

内容策展平台及其特征研究——以“花瓣网”为例     

吕琳露 《现代情报》2017,37(3):62-68

在界定内容策展概念的基础上,本文对国内外内容策展平台进行总结分析,并以国内策展平台——花瓣网为例,借助MetaStudio和DataScraper工具,对策展活动中策展主题、数据来源以及用户相关行为进行探讨。研究表明,策展数据的来源广泛,策展结果主题化鲜明且融入了个人知识的增值信息,内容策展的实例化已基本实现,但大众与小众主题的被关注度存在显著差异,同时平台中信息交流的表达不同于传统的社交平台,其主要以策展结果的方式展现。  相似文献   

基于IE流程分析提高超市服务效率的方法研究     

孙凤娇  张于贤 《科技广场》2015,(1):6-9

本文通过应用工业工程(IE)中程序分析的方法,分析收银员的收银流程,发现整个收银过程中占据时间最长的是扫码和装袋两个过程,并结合流水线的相关知识,将扫码和装袋这部分流程分成两个阶段,采用增加一个收银员的方法直接提高收银效率。最后通过计算证明,该方法可以有效的提高超市的收银效率。  相似文献   

中外地理学英文论文题名的结构及常用词比较分析     

刘永芳  单凤娇  杨兰芝 《中国科技期刊研究》2015,26(12):1319-1324

[目的]探讨地理学期刊论文英文题名在句法结构和常用表达方面的撰写特点,提高我国期刊论文英译题名的质量。[方法]选取地理学中、外权威期刊2008-2012年间的2000个题名,以国际期刊为参照,对比分析我国英文题名的句法结构及常用表达特点。[结果]与国际期刊相比,我国地理学英文题名句法结构单一,过多使用名词短语结构,复合式题名与动名词短语类使用偏少;常用表达方面,某些学术套语出现率高。[结论]我国英文题名不够简洁,减弱了题名的信息性与吸引性功能。建议期刊编辑和论文作者在英译题名时注意句法结构的多样性,尽量减少母语表达习惯的影响。  相似文献   

高校官方微博行为特征案例对比分析--以新浪微博为研究平台     

王英  吴淑娟  芦姗  邱小花  吕荣侠  蒋玲 《情报探索》2015,(2):68-71

通过对比影响力较高和影响力较低的两组高校官方微博,分析它们在发布频率、发布时间段、发布形式、议题类型、发布来源、语言风格等6个方面的异同点,计算每条微博的被转发数、被评论数、被赞数的总和以表示其反响力,利用方差分析研究反响力与议题类型的相关关系,从而为微博信息的发布控制提供建议,供高校官方微博借鉴。  相似文献   

Quantitative detection of cells expressing BlaC using droplet-based microfluidics for use in the diagnosis of tuberculosis     

Fengjiao Lyu  Manqi Xu  Yunfeng Cheng  Jinghang Xie  Jianghong Rao  Sindy K. Y. Tang 《Biomicrofluidics》2015,9(4)

This paper describes a method for the quantitative detection of cells expressing BlaC, a β-lactamase naturally expressed by Mycobacterium tuberculosis, intended for the diagnosis of tuberculosis. The method is based on the compartmentalization of bacteria in picoliter droplets at limiting dilutions such that each drop contains one or no cells. The co-encapsulation of a fluorogenic substrate probe for BlaC allows the quantification of bacteria by enumerating the number of fluorescent drops. Quantification of 10 colony forming units per milliliter is demonstrated. Furthermore, the encapsulation of single cell in drops maintains the specificity of the detection scheme even when the concentration of bacteria that do not express BlaC exceeds that expressing BlaC by one million-fold.  相似文献