A qualia role-based entity-dependency graph(EDG)is proposed to represent and extract quantity relations for solving algebra story problems stated in Chinese.Traditional neural solvers use end-to-end models to translat...A qualia role-based entity-dependency graph(EDG)is proposed to represent and extract quantity relations for solving algebra story problems stated in Chinese.Traditional neural solvers use end-to-end models to translate problem texts into math expressions,which lack quantity relation acquisition in sophisticated scenarios.To address the problem,the proposed method leverages EDG to represent quantity relations hidden in qualia roles of math objects.Algorithms were designed for EDG generation and quantity relation extraction for solving algebra story problems.Experimental result shows that the proposedmethod achieved an average accuracy of 82.2%on quantity relation extraction compared to 74.5%of baseline method.Another prompt learning result shows a 5%increase obtained in problem solving by injecting the extracted quantity relations into the baseline neural solvers.展开更多
Teachers and students play important roles in teaching activity,and they are the most essential parts of the system.The relationship between teachers and students,the core schooling interpersonal relationship,directly...Teachers and students play important roles in teaching activity,and they are the most essential parts of the system.The relationship between teachers and students,the core schooling interpersonal relationship,directly determines whether the teach ing activities can go smoothly or not,and is an important index to measure the quality of teachers and students'school life,and also is an important factor that affects the social function of education.For a long time,relationship between teachers and students has been a hot topic in education and in different sectors of the society.This dissertation aims at discussing the teacher-student role changing in interactive teaching mode to provide reference for building a harmonious relationship between teachers and stu dents.展开更多
Multi-scale contributions are involved in the South China Sea(SCS)summer monsoon(SCSSM)onset process.The relative roles of intraseasonal oscillation and above-seasonal component in the year-to-year variation of the SC...Multi-scale contributions are involved in the South China Sea(SCS)summer monsoon(SCSSM)onset process.The relative roles of intraseasonal oscillation and above-seasonal component in the year-to-year variation of the SCSSM onset are evaluated in this study.The 30-90-day and above-90-day components are major contributors to the year-to-year variation of the SCSSM onset,and the former contributes greater portion,while the 8-30-day component has little contribution to the onset.In the early onset cases,the 30-90-day westerly winds move and extend eastward from the tropical Indian Ocean(TIO)to the SCS monsoon region relatively earlier,and replace the easterly winds over the SCS with the cooperation of the 30-90-day cyclone moving southward from northern East Asia.The westerly anomalies of the above-90-day component in spring jointly contribute to the early SCSSM onset.In the late onset cases,the late eastward expansion of 30-90-day westerly wind over the TIO,accompanied by the late occurrence and weakening of the 30-90-day anticyclone over the SCS,and its late withdraw from the SCS,as well as the persistent easterly anomalies of above-90-day component,suppress the SCSSM onset.However,the SCSSM outbreaks in the obvious weakening stage of 30-90-day easterly anomalies.The easterlies-to-westerlies transition of the 30-90-day 850-hPa zonal wind over the SCS in spring is closely associated with sea surface temperature in the tropical western Pacific in preceding winter and spring,while the interannual variation of the above-90-day zonal wind in April-May is closely related to the decaying stage of the El Niño-Southern Oscillation events.展开更多
The oxysterol-binding protein-related protein(ORP)family is a group of proteins that mediate oxysterol metabolism and bioactivity in cells.ORPs constitute a large family of lipid transfer proteins.Much of the current ...The oxysterol-binding protein-related protein(ORP)family is a group of proteins that mediate oxysterol metabolism and bioactivity in cells.ORPs constitute a large family of lipid transfer proteins.Much of the current evidence indicates that certain members of the family of oxysterol-binding proteins(OSBPs)can lead to cancer.Many studies have revealed the putative roles of OSBPs in various cancer types.However,the exact effects and mechanisms of action of members of the OSBP/ORP family in cancer initiation and progression are currently unclear.This review focuses on ORP family members that can accelerate human tumour cell proliferation,migration,and invasion.The mechanisms and functions of various ORPs are introduced in detail.We also attempt to identify the roles of these proteins in malignant tumours with the ultimate aim of determining the exact role of the OSBP/ORP family in human tumour cells.展开更多
The analysis of dissolved gas in oil can provide an important basis for transformer fault diagnosis.In order to improve the accuracy of transformer fault diagnosis,a method based on the relational teacher-student netw...The analysis of dissolved gas in oil can provide an important basis for transformer fault diagnosis.In order to improve the accuracy of transformer fault diagnosis,a method based on the relational teacher-student network(R-TSN)is proposed by analyzing the relationship between the dissolved gas in the oil and the fault type.R-TSN replaces the original hard labels with soft labels,and uses it to measure the similarity between different samples in the space,to a certain extent,it can obtain the hidden feature information in the samples,and clarify the classification boundary.Through the identification experiment,the effect of R-TSN diagnosis model is analyzed,and the influence of the compound fault of discharge and thermal on the diagnosis model is studied.This paper compares R-TSN with support vector machines(SVMs),decision trees and multilayer perceptron models in transformer fault diagnosis.Experimental results show that R-TSN has better performance than the above methods.After adding compound faults in the sample set,the accuracy rate can still reach 86.0%.展开更多
This paper first reviewed a controversial case in which a teacher ran away from his students in a earthquake. Several educational ethnic questions were aroused from the case: Is protecting students part of teacher'...This paper first reviewed a controversial case in which a teacher ran away from his students in a earthquake. Several educational ethnic questions were aroused from the case: Is protecting students part of teacher's job? To what extent should it be applied? etc. Then the author aims to answer these questions based on a real case study from philosophical perspective, that is, analyzing teacher's role(i) as a human being;(ii) as a educator;(iii) as a educatee. Finally the paper concludes that teachers should protect their students even under life threatening circumstances.展开更多
Promotion of multilateralism has been one of key Japanese roles.It is not limited to support to the United Nations but also related to the promotion of global and regional free trade in Asia-Pacific.This article shows...Promotion of multilateralism has been one of key Japanese roles.It is not limited to support to the United Nations but also related to the promotion of global and regional free trade in Asia-Pacific.This article shows the result of a research based on Japanese,United States,and Chinese political leaders’statements and behaviors related to economic multilateralism during the second Abe administration.The research uses role theory as a theoretical framework.This article proves that Prime Minister Abe has consistently endorsed multilateralism,deepening economic ties both Asia-Pacific and European countries by examining Japanese,US,and Chinese political leaders’speeches,interviews,and remarks on the media.His foreign policy does not indicate unilateralism or dismissal of international cooperation because he perceives multilateralism is essential for Japan’s prosperity and security.In addition,Abe does not break the ties with the US but it is difficult to say that Japan-China relations improved during his tenure.This is because China’s influence will grow and the importance of Japan will relatively decline in Asia-Pacific.展开更多
为高效地自动挖掘开源异构大数据中的威胁情报实体和关系,提出一种威胁情报实体关系抽取(TIERE)方法。首先,通过分析开源网络安全报告的特点,研究并提出一种数据预处理方法;然后,针对网络安全领域文本复杂度高、标准数据样本集少的问题...为高效地自动挖掘开源异构大数据中的威胁情报实体和关系,提出一种威胁情报实体关系抽取(TIERE)方法。首先,通过分析开源网络安全报告的特点,研究并提出一种数据预处理方法;然后,针对网络安全领域文本复杂度高、标准数据样本集少的问题,提出基于改进自举法的命名实体识别(NER-IBS)算法和基于语义角色标注的关系抽取(RE-SRL)算法。利用少量样本和规则构建初始种子,通过迭代训练挖掘非结构化文本中的实体,并通过构建语义角色的策略挖掘实体之间的关系。实验结果表明,在少样本网络安全信息抽取数据集上,NER-IBS算法的F1值为84%,与RDF-CRF(Regular expression and Dictionary combined with Feature templates as well as Conditional Random Field)算法相比提高了2个百分点,且RE-SRL算法对于无类别关系抽取的F1值为94%,说明TIERE方法具有高效的实体关系抽取能力。展开更多
基金supported by the National Natural Science Foundation of China (Nos.62177024,62007014)the Humanities and Social Sciences Youth Fund of the Ministry of Education (No.20YJC880024)+1 种基金China Post Doctoral Science Foundation (No.2019M652678)the Fundamental Research Funds for the Central Universities (No.CCNU20ZT019).
文摘A qualia role-based entity-dependency graph(EDG)is proposed to represent and extract quantity relations for solving algebra story problems stated in Chinese.Traditional neural solvers use end-to-end models to translate problem texts into math expressions,which lack quantity relation acquisition in sophisticated scenarios.To address the problem,the proposed method leverages EDG to represent quantity relations hidden in qualia roles of math objects.Algorithms were designed for EDG generation and quantity relation extraction for solving algebra story problems.Experimental result shows that the proposedmethod achieved an average accuracy of 82.2%on quantity relation extraction compared to 74.5%of baseline method.Another prompt learning result shows a 5%increase obtained in problem solving by injecting the extracted quantity relations into the baseline neural solvers.
文摘Teachers and students play important roles in teaching activity,and they are the most essential parts of the system.The relationship between teachers and students,the core schooling interpersonal relationship,directly determines whether the teach ing activities can go smoothly or not,and is an important index to measure the quality of teachers and students'school life,and also is an important factor that affects the social function of education.For a long time,relationship between teachers and students has been a hot topic in education and in different sectors of the society.This dissertation aims at discussing the teacher-student role changing in interactive teaching mode to provide reference for building a harmonious relationship between teachers and stu dents.
基金Program of National Science Foundation of China(42175018,42088101)Program of Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies(2020B1212060025)。
文摘Multi-scale contributions are involved in the South China Sea(SCS)summer monsoon(SCSSM)onset process.The relative roles of intraseasonal oscillation and above-seasonal component in the year-to-year variation of the SCSSM onset are evaluated in this study.The 30-90-day and above-90-day components are major contributors to the year-to-year variation of the SCSSM onset,and the former contributes greater portion,while the 8-30-day component has little contribution to the onset.In the early onset cases,the 30-90-day westerly winds move and extend eastward from the tropical Indian Ocean(TIO)to the SCS monsoon region relatively earlier,and replace the easterly winds over the SCS with the cooperation of the 30-90-day cyclone moving southward from northern East Asia.The westerly anomalies of the above-90-day component in spring jointly contribute to the early SCSSM onset.In the late onset cases,the late eastward expansion of 30-90-day westerly wind over the TIO,accompanied by the late occurrence and weakening of the 30-90-day anticyclone over the SCS,and its late withdraw from the SCS,as well as the persistent easterly anomalies of above-90-day component,suppress the SCSSM onset.However,the SCSSM outbreaks in the obvious weakening stage of 30-90-day easterly anomalies.The easterlies-to-westerlies transition of the 30-90-day 850-hPa zonal wind over the SCS in spring is closely associated with sea surface temperature in the tropical western Pacific in preceding winter and spring,while the interannual variation of the above-90-day zonal wind in April-May is closely related to the decaying stage of the El Niño-Southern Oscillation events.
文摘The oxysterol-binding protein-related protein(ORP)family is a group of proteins that mediate oxysterol metabolism and bioactivity in cells.ORPs constitute a large family of lipid transfer proteins.Much of the current evidence indicates that certain members of the family of oxysterol-binding proteins(OSBPs)can lead to cancer.Many studies have revealed the putative roles of OSBPs in various cancer types.However,the exact effects and mechanisms of action of members of the OSBP/ORP family in cancer initiation and progression are currently unclear.This review focuses on ORP family members that can accelerate human tumour cell proliferation,migration,and invasion.The mechanisms and functions of various ORPs are introduced in detail.We also attempt to identify the roles of these proteins in malignant tumours with the ultimate aim of determining the exact role of the OSBP/ORP family in human tumour cells.
基金supported by Open Fund of Beijing Key Laboratory of Research and System Evaluation of Dispatching Automation Technology,China Electric Power Research Institute(SGDK 0000DZQT2003377)。
文摘The analysis of dissolved gas in oil can provide an important basis for transformer fault diagnosis.In order to improve the accuracy of transformer fault diagnosis,a method based on the relational teacher-student network(R-TSN)is proposed by analyzing the relationship between the dissolved gas in the oil and the fault type.R-TSN replaces the original hard labels with soft labels,and uses it to measure the similarity between different samples in the space,to a certain extent,it can obtain the hidden feature information in the samples,and clarify the classification boundary.Through the identification experiment,the effect of R-TSN diagnosis model is analyzed,and the influence of the compound fault of discharge and thermal on the diagnosis model is studied.This paper compares R-TSN with support vector machines(SVMs),decision trees and multilayer perceptron models in transformer fault diagnosis.Experimental results show that R-TSN has better performance than the above methods.After adding compound faults in the sample set,the accuracy rate can still reach 86.0%.
文摘This paper first reviewed a controversial case in which a teacher ran away from his students in a earthquake. Several educational ethnic questions were aroused from the case: Is protecting students part of teacher's job? To what extent should it be applied? etc. Then the author aims to answer these questions based on a real case study from philosophical perspective, that is, analyzing teacher's role(i) as a human being;(ii) as a educator;(iii) as a educatee. Finally the paper concludes that teachers should protect their students even under life threatening circumstances.
文摘Promotion of multilateralism has been one of key Japanese roles.It is not limited to support to the United Nations but also related to the promotion of global and regional free trade in Asia-Pacific.This article shows the result of a research based on Japanese,United States,and Chinese political leaders’statements and behaviors related to economic multilateralism during the second Abe administration.The research uses role theory as a theoretical framework.This article proves that Prime Minister Abe has consistently endorsed multilateralism,deepening economic ties both Asia-Pacific and European countries by examining Japanese,US,and Chinese political leaders’speeches,interviews,and remarks on the media.His foreign policy does not indicate unilateralism or dismissal of international cooperation because he perceives multilateralism is essential for Japan’s prosperity and security.In addition,Abe does not break the ties with the US but it is difficult to say that Japan-China relations improved during his tenure.This is because China’s influence will grow and the importance of Japan will relatively decline in Asia-Pacific.
文摘为高效地自动挖掘开源异构大数据中的威胁情报实体和关系,提出一种威胁情报实体关系抽取(TIERE)方法。首先,通过分析开源网络安全报告的特点,研究并提出一种数据预处理方法;然后,针对网络安全领域文本复杂度高、标准数据样本集少的问题,提出基于改进自举法的命名实体识别(NER-IBS)算法和基于语义角色标注的关系抽取(RE-SRL)算法。利用少量样本和规则构建初始种子,通过迭代训练挖掘非结构化文本中的实体,并通过构建语义角色的策略挖掘实体之间的关系。实验结果表明,在少样本网络安全信息抽取数据集上,NER-IBS算法的F1值为84%,与RDF-CRF(Regular expression and Dictionary combined with Feature templates as well as Conditional Random Field)算法相比提高了2个百分点,且RE-SRL算法对于无类别关系抽取的F1值为94%,说明TIERE方法具有高效的实体关系抽取能力。
