期刊文献+
共找到8,368篇文章
< 1 2 250 >
每页显示 20 50 100
采用Identifiler系统进行全同胞关系判定的准则探讨 被引量:9
1
作者 赵书民 张素华 李成涛 《法医学杂志》 CAS CSCD 2011年第1期17-21,共5页
目的探讨采用Identifiler系统进行全同胞关系判定时共有等位基因数(IAn)和全相同基因座数(A2)的标准。方法依据IAn和A2的有限分布,将IAn的31种取值代入已建立的判别函数,获得判定全同胞时IAn和A2的阈值,据此确定4种标准,对经Identifile... 目的探讨采用Identifiler系统进行全同胞关系判定时共有等位基因数(IAn)和全相同基因座数(A2)的标准。方法依据IAn和A2的有限分布,将IAn的31种取值代入已建立的判别函数,获得判定全同胞时IAn和A2的阈值,据此确定4种标准,对经Identifiler系统分型的280对全同胞和2003对无关个体对进行全同胞判定。采用ITO法计算累积全同胞指数(CFSI),并采用CFSI>1、CFSI≥5、CFSI≥20、CFSI≥100 4种标准同样进行全同胞判定。计算上述8个标准判定全同胞的敏感度、特异性、准确度、阳性预测值和阴性预测值,通过Kappa检验比较基于IAn和A2的判定标准与CFSI标准判定结果的一致性。结果满足(Ⅰ)IAn≥15且A2≥4、或(Ⅱ)IAn≥16且A2≥3、或(Ⅲ)IAn≥17且A2≥3、或(Ⅳ)IAn≥18且A2≥3者均可认定为全同胞。上述4项标准与CFSI的4项标准进行全同胞判定的准确度、特异性和阴性预测值均大于0.9500。标准Ⅱ与CFSI≥5、标准Ⅲ与CFSI≥20、标准Ⅳ与CFSI≥100 3组判定标准的各项指标均接近,Kappa值分别为0.904 9、0.9204和0.9083,其中,标准Ⅲ与CFSI≥20对全同胞的阳性预测值和阴性预测值均大于0.950 0。结论 IAn≥17且A2≥3是采用Identifiler系统进行全同胞判定的简便易行且有效的标准,这一标准与CFSI≥20相当。 展开更多
关键词 法医遗传学 同胞关系 共有等位基因 identifiler系统
在线阅读 下载PDF
Identity-aware convolutional neural networks for facial expression recognition 被引量:14
2
作者 Chongsheng Zhang Pengyou Wang +1 位作者 Ke Chen Joni-Kristian Kamarainen 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2017年第4期784-792,共9页
Facial expression recognition is a hot topic in computer vision, but it remains challenging due to the feature inconsistency caused by person-specific 'characteristics of facial expressions. To address such a chal... Facial expression recognition is a hot topic in computer vision, but it remains challenging due to the feature inconsistency caused by person-specific 'characteristics of facial expressions. To address such a challenge, and inspired by the recent success of deep identity network (DeepID-Net) for face identification, this paper proposes a novel deep learning based framework for recognising human expressions with facial images. Compared to the existing deep learning methods, our proposed framework, which is based on multi-scale global images and local facial patches, can significantly achieve a better performance on facial expression recognition. Finally, we verify the effectiveness of our proposed framework through experiments on the public benchmarking datasets JAFFE and extended Cohn-Kanade (CK+). 展开更多
关键词 facial expression recognition deep learning CLASSIFICATION identity-aware
在线阅读 下载PDF
Blind channel identication of nonlinear folding mixing model 被引量:1
3
作者 Su Yong Xu Shangzhi Ye Zhongfu 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2006年第3期509-512,共4页
Signals from multi-sensor systems are often mixtures of (statistically) independent sources by unknown mixing method. Blind source separation(BSS) and independent component analysis(ICA) are the methods to ident... Signals from multi-sensor systems are often mixtures of (statistically) independent sources by unknown mixing method. Blind source separation(BSS) and independent component analysis(ICA) are the methods to identify/recover the channels and the sources. BSS/ICA of nonlinear mixing models are difficult problems. For instance, the post-nonlinear model has been studied by several authors. It is noticed that in most cases, the proposed models are always with an invertible mixing. According to this fact there is an interesting question, how about the situation of the non-invertible non-linear mixing in BSS or ICA? A new simple non-linear mixing model is proposed with a kind of non-invertible mixing, the folding mixing, and method to identify its channel, blindly. 展开更多
关键词 BLIND channel identication non-linear mixing non-invertible.
在线阅读 下载PDF
On the Construction and Representation of Chinese Cultural Identity: From an Intercultural Perspective
4
作者 Li Chuan 《学术界》 CSSCI 北大核心 2019年第6期214-224,共11页
Cultural identity is the identity or feeling of belonging to a group.Individual,relational and communal identity are the three components of the cultural identity.Chinese cultural identity is an example of communal id... Cultural identity is the identity or feeling of belonging to a group.Individual,relational and communal identity are the three components of the cultural identity.Chinese cultural identity is an example of communal identity.A positive national cultural identity enhances national prestige,increases global understanding,reveals a unique value proposition and develops a competitive advantage in the world.However,in the wave of globalization and contemporary Chinese social transformation,Chinese cultural identity encounters some challenges.Cultural identity becomes fuzzy.The present paper attempts to make some suggestions to the construction and representation of Chinese cultural identity from an intercultural perspective.To construct Chinese cultural identity,we should try to accommodate Chinese cultural inheritance with contemporary culture and modern society,enhance full development of cultural products,rebuild people’s self-esteem on cultural identity,and improve the government’s identity-constructing ability.As for the representation of Chinese cultural identity,promoting the Chinese language,making use of mass media,performing national cultural identity in sports,encouraging heritage tourism and drawing upon other countries’ experience would be essential. 展开更多
关键词 CULTURAL identITY CONSTRUCTION communication INTERCULTURAL perspective
在线阅读 下载PDF
Identity and Differences Between Chinese and Western Cultural Philosophy
5
作者 Chen Jiafu Wang Weili 《学术界》 CSSCI 北大核心 2018年第11期262-272,共11页
Cultural philosophy refers to the study of cultural principles with philosophical viewpoints and methods to form a theoretical system of cultural views and cultural activities.It mainly discusses the history and devel... Cultural philosophy refers to the study of cultural principles with philosophical viewpoints and methods to form a theoretical system of cultural views and cultural activities.It mainly discusses the history and development of culture,the motive force and conditions of culture,the role of tradition in social history,the comparison of various cultures,and the conflict and blending of cultures.This paper attempts to explore an effective way to integrate the two modes of thinking of Chinese and Western cultural philosophy through a comparative analysis of the differences and identity between Chinese and Western cultural philosophy.The study of cultural identity and differences between China and Western countries has a certain practical significance for cross-cultural communication in China. 展开更多
关键词 CULTURAL PHILOSOPHY DIFFERENCES identITY
在线阅读 下载PDF
Research Status and Reflection on Chinese Cultural Identity
6
作者 Chen Jia Wang Qian 《学术界》 CSSCI 北大核心 2020年第8期209-217,共9页
Chinese cultural identity has great significance in maintaining the unity of Chinese nation and promo-ting the development of Chinese culture.This paper explains the definition and development of Chinese cultural iden... Chinese cultural identity has great significance in maintaining the unity of Chinese nation and promo-ting the development of Chinese culture.This paper explains the definition and development of Chinese cultural iden-tity.Research targets include Chinese cultural identity of collge students and Chinese cultural identity of Chinese eth-nic minorities.This paper also carries out a comparative research from an international perspective.Enhancing Chinese cultural identity not only has an important efect on the prosperity and development of Chinese culture,but also has far-reaching impact on the Chinese national identity. 展开更多
关键词 cultural identity Chinese culture influence factors
在线阅读 下载PDF
Family-Society: The Dual Identity of Chinese Women
7
作者 Liu Ning Qin Yan 《学术界》 CSSCI 北大核心 2020年第5期210-217,共8页
The analysis of the historical and theoretical origins of the dual identity of Chinese women based on the Marxist view of family-society enables a more scientific and reasonable explanation to the unity of history and... The analysis of the historical and theoretical origins of the dual identity of Chinese women based on the Marxist view of family-society enables a more scientific and reasonable explanation to the unity of history and logic of Chinese women’s dual identity.Under the guidance of the Marxist concept of family-society,Chinese women will achieve development in both family space and social space;meanwhile,Chinese women in the dual identity development carry the home-state emotion different from that of western women’s;cultivating women’s awareness of family identity is of great significance to the construction of family style or national style in the new era of socialism with Chinese characteristics. 展开更多
关键词 Chinese women Marxist view of family-society dual identity of family-society family space social space Interpretation of Marxist view of family-society
在线阅读 下载PDF
Identity-based authentication protocol for grid
8
作者 Li Hongwei Sun Shixin Yang Haomiao 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2008年第4期860-864,F0003,共6页
Current grid authentication frameworks are achieved by applying the standard SSL authentication protocol (SAP). The authentication process is very complicated, and therefore, the grid user is in a heavily loaded poi... Current grid authentication frameworks are achieved by applying the standard SSL authentication protocol (SAP). The authentication process is very complicated, and therefore, the grid user is in a heavily loaded point both in computation and in communication. Based on identity-based architecture for grid (IBAG) and corresponding encryption and signature schemes, an identity-based authentication protocol for grid is proposed. Being certificate-free, the authentication protocol aligns well with the demands of grid computing. Through simulation testing, it is seen that the authentication protocol is more lightweight and efficient than SAP, especially the more lightweight user side. This contributes to the larger grid scalability. 展开更多
关键词 GRID identity-based cryptography AUTHENTICATION gridsim.
在线阅读 下载PDF
A Coupled Transiently Chaotic Neural Network Approach for Identical Parallel Machine Scheduling 被引量:2
9
作者 YU Ai-Qing GU Xing-Sheng 《自动化学报》 EI CSCD 北大核心 2008年第6期697-701,共5页
在相同机器上安排工作是经常在各种各样的生产系统遇到的一种状况。在这份报纸,一新联合了短暂地混乱的神经网络(CTCNN ) 被提出解决相同平行机器安排。这个问题的一个混合整数编程模型被介绍一个排列矩阵表达式转变成 CTCNN 计算体系... 在相同机器上安排工作是经常在各种各样的生产系统遇到的一种状况。在这份报纸,一新联合了短暂地混乱的神经网络(CTCNN ) 被提出解决相同平行机器安排。这个问题的一个混合整数编程模型被介绍一个排列矩阵表达式转变成 CTCNN 计算体系结构。新计算精力功能被建议除所有限制以外表示目的。特别地,在精力功能在惩罚术语之中存在的折衷问题被使用变化时间的惩罚参数克服。最后,结果与 100 个随机的起始的条件在 3 个不同规模问题上测试了证明网络收敛并且能在合理时间解决这些问题。 展开更多
关键词 机械设计 智能化系统 人工神经网络 混沌系统
在线阅读 下载PDF
Translator's Identity in the English Translation of Wenxin Diaolong 被引量:1
10
作者 Su Lingyun Hu Zuoyou 《学术界》 CSSCI 北大核心 2017年第2期282-290,共9页
In the article Owen’s and Yang Guobin’s English versions of Wenxin Diaolong are compared from the perspective of a translator’s identity.Owen is a translator of A-merican origin while Yang Guobin is of Chinese orig... In the article Owen’s and Yang Guobin’s English versions of Wenxin Diaolong are compared from the perspective of a translator’s identity.Owen is a translator of A-merican origin while Yang Guobin is of Chinese origin.Their multiple identity as a reader,author,creator and cultural communicator differs much from each other,which produces important influences upon the selection of the strategy of translation.Owen prefers foreignizing translation while Yang favors domesticating translation.The English translation of Wenxin Diaolong provides much value for the research on the translation of Chinese classic literature. 展开更多
关键词 英语翻译 传播者 创造者 起源 中国 读者 归化
在线阅读 下载PDF
Discursive Construction of European Identity- A Case Study on EU Documents
11
作者 He Rong 《学术界》 CSSCI 北大核心 2015年第10期319-323,共5页
It has been more than four decades since "European Identity" first appeared in EEC document in 1973.Therefore,the discursive construction of the notion has undergone a long and complex process.While the repr... It has been more than four decades since "European Identity" first appeared in EEC document in 1973.Therefore,the discursive construction of the notion has undergone a long and complex process.While the representative documents of EU are the legitimate underlying file to demonstrate "European Identity" discourse pf which the systematic research is relatively barely noticed.From the horizon of "social discourse" theories,this paper focuses on sorting out the representative documents of EU,and analyses the word frequency and diachronic evolution derived from "European Identity" perception,in order to reveal the discursive legitimate progress of "European Identity" and the issues triggered from it. 展开更多
关键词 欧洲 文件 话语 欧盟 案例 欧共体
在线阅读 下载PDF
Discussion on the Sexual Identity Diversity in Australian Modernistic Novels
12
作者 Chen Hong 《学术界》 CSSCI 北大核心 2014年第4期283-288,共6页
Sexual identity was diverse in Australian modernistic novels,and it was especially prominent in the works of Patrick White who was an im portant modernistic litterateur. White was hom osexual,and he gave a reflection ... Sexual identity was diverse in Australian modernistic novels,and it was especially prominent in the works of Patrick White who was an im portant modernistic litterateur. White was hom osexual,and he gave a reflection to the sex-related identity concerns in a diverse way because he was deeply depressed by the Australian heterosexual system before and after the Second World War. The sexual themes of the Australian modernistic novels were often manifested in a subtle,indirect way. In this paper,the sexual identity and value of the characters in Australian modernistic novels are discussed,so as to profoundly explore the understandings of human nature. 展开更多
关键词 现代主义 小说 澳洲 多样性 第二次世界大战 澳大利亚 文学家 同性恋
在线阅读 下载PDF
On the Identity of Personality and the Concept of Human
13
作者 Lu Dongshuang Liu Yanzi 《学术界》 CSSCI 北大核心 2015年第11期280-285,共6页
The concept of"human"is essential in bioethics.Generally speaking,the concept of"human"is related to the identity of personality.This paper systematically discusses the concept of"personality ... The concept of"human"is essential in bioethics.Generally speaking,the concept of"human"is related to the identity of personality.This paper systematically discusses the concept of"personality identity"and"human"by Locke,Parfit and Kant.In comparison,Locke views self-awareness or reason as the key element of any appropriate concepts of"human".On the basis of Locke's viewpoint,Parfit makes explanation of the identity of personality,and points out that personality identity should be connected with physical and psychological continuity.This view has been a progress but still has a utility thought.Therefore,the understanding of the concept of"human"is not entirely out of its species,and should be deeply based on our own as the main body of the concept. 展开更多
关键词 人格特征 自我意识 伦理观 连续性 系统 康德
在线阅读 下载PDF
Cultural Identity on Afro- American Women Writers
14
作者 Lei Qinglan Sun Weimin 《学术界》 CSSCI 北大核心 2016年第7期286-289,共4页
Afro- American Women were once a social minority and the weaker gender in American society. Through the endeavor of a group of Afro- American women writers,they have achieved a great success for the cultural identity ... Afro- American Women were once a social minority and the weaker gender in American society. Through the endeavor of a group of Afro- American women writers,they have achieved a great success for the cultural identity by concluding their own social experience into works in recent decades. This paper reviews the cultural identity built by Afro- American black women writers and introduces its historical reasons,works,and historical significance. By doing this,we stand to gain insights into the American women writers and find their great contributions to their cultural identity in American culture. 展开更多
关键词 美国文化 作家 化身 非洲 女性 历史意义 少数民族 文化认同
在线阅读 下载PDF
A Survey of Identity-based and Attribute-based Cryptography
15
作者 QI Zheng-hua YANG Geng REN Xun-yi 《南京邮电大学学报(自然科学版)》 2010年第1期11-17,共7页
We survey the state of research on identity-based cryptography and attribute-based cryptography.We firstly review the basic concepts of identity-based cryptographic schemes in which users' identifier information s... We survey the state of research on identity-based cryptography and attribute-based cryptography.We firstly review the basic concepts of identity-based cryptographic schemes in which users' identifier information such as email or IP addresses instead of digital certificates can be used as public key for encryption or signature verification,and subsequently review some important identity-based encryption,signature and signcryption schemes.Then we give our research on Identity-Based Encryption-Signature(IBES) method.We also survey the attribute-based cryptographic schemes in which the identity of user is viewed as a set of descriptive attributes,including some important attribute-based encryption and signature schemes.We subsequently give our research on Attribute-Based Encryption and Identity-Based Signature (ABE-IBS) method.Both methods aim at efficiently improving the security of wireless sensor network.Finally,we propose a few interesting open problems concerning with practical and theoretical aspects of identity-based cryptography and attribute-based cryptography. 展开更多
关键词 计算机网络 网络安全 密码系统 服务器
在线阅读 下载PDF
政策感知、职业认同与教师交流轮岗政策遵从 被引量:4
16
作者 王建平 张萌 《东北师大学报(哲学社会科学版)》 北大核心 2025年第1期61-70,共10页
教师对交流轮岗政策的遵从意愿直接影响政策实施成效。为探析政策感知、职业认同是否及如何影响教师交流轮岗政策遵从意愿,本研究采用有序Probit模型对比分析1487份教师调查问卷数据。研究发现:教师整体上对交流轮岗政策遵从意愿处于中... 教师对交流轮岗政策的遵从意愿直接影响政策实施成效。为探析政策感知、职业认同是否及如何影响教师交流轮岗政策遵从意愿,本研究采用有序Probit模型对比分析1487份教师调查问卷数据。研究发现:教师整体上对交流轮岗政策遵从意愿处于中等偏上水平,政策感知、职业认同对政策遵从呈多通道的差异化影响。具体表现为:在政策感知方面,政策了解和认可程度高的教师更倾向于遵从交流轮岗政策;职业认同方面,工作回报、角色价值和工作成就感对政策遵从有正相关性,而工作保障和工作氛围则对政策遵从有负相关性。深入分析后认为:良好的工作保障和氛围可能强化了教师对稳定性的期望,减少了对人事变革的接受度,进而对交流轮岗政策遵从意愿产生负向影响。 展开更多
关键词 政策感知 职业认同 政策遵从 交流轮岗政策
在线阅读 下载PDF
基于UTXO模型区块链的众包物流可信身份认证模型 被引量:3
17
作者 李致远 吴越 +1 位作者 张威威 李沅格 《江苏大学学报(自然科学版)》 CAS 北大核心 2025年第1期57-63,共7页
针对现有集中式众包物流平台中用户身份数据存储与管理存在的隐私泄露和篡改问题,提出一种基于UTXO模型区块链的众包物流可信身份认证模型.该模型包括利用区块链技术实现身份注册、身份验证、身份撤销及身份认证.针对链上存储用户隐私... 针对现有集中式众包物流平台中用户身份数据存储与管理存在的隐私泄露和篡改问题,提出一种基于UTXO模型区块链的众包物流可信身份认证模型.该模型包括利用区块链技术实现身份注册、身份验证、身份撤销及身份认证.针对链上存储用户隐私数据风险的问题,采用混合加解密方案对链上个人信息做安全存储与分享;针对平台认证用户身份的问题,采用可信身份凭证以零知识证明方式登录众包物流平台.对身份信息以及认证进行安全性分析,并将该方法与LIU方法、LI方法的安全性能进行了对比.在Python3.9环境下完成试验,进行了身份信息加密和零知识身份认证测试分析.结果表明该方案的认证时延和处理事务能力均优于现有的SHAO方案. 展开更多
关键词 众包物流 区块链 身份管理 UTXO模型 可信身份认证 零知识证明
在线阅读 下载PDF
文化传统影响下职业教育社会认同的形成机制及其逻辑理路 被引量:7
18
作者 祁占勇 王艺霏 《教育学报》 北大核心 2025年第1期180-194,共15页
文化传统作为民族思想规范与观念形态的集合,会以隐性或显性的方式对在个体与社会交互过程中形成的职业教育社会认同产生影响。文化传统影响下的职业教育社会认同经过社会范畴化、社会比较和社会表征的过程,不仅实现了从职业教育社会认... 文化传统作为民族思想规范与观念形态的集合,会以隐性或显性的方式对在个体与社会交互过程中形成的职业教育社会认同产生影响。文化传统影响下的职业教育社会认同经过社会范畴化、社会比较和社会表征的过程,不仅实现了从职业教育社会认同的构建到职业教育社会认同的强化,而且最终实现了职业教育社会认同的生产与再生产。文化传统对职业教育社会认同的影响既有在职业教育思想、职业教育环境和职业道德等方面的积极影响,也有在职业教育实践特性、职业教育发展路径以及工业文化传承延续等方面的消极影响。因此,基于文化传统的职业教育社会认同建构,一要围绕标签消除,构建平等包容的职业教育社会认同的文化秩序;二要围绕落差调整,构建完整公正的职业教育社会认同的比较优势;三要围绕损害修复,构建相互交流的职业教育社会认同的引导机制。 展开更多
关键词 文化传统 职业教育 社会认同 符号边界 社会认同理论
在线阅读 下载PDF
“身在乡”到“心入场”:新生代乡村教师身份认同重塑 被引量:3
19
作者 王明露 颜庆 《教育理论与实践》 北大核心 2025年第13期35-42,共8页
新生代乡村教师是教师队伍中分化出来的一个新群体,并随着乡村教师群体的代际更替,日渐成为乡村教育场域的中坚力量。增进新生代乡村教师的身份认同,奠定了个体认知与公共认知一致性的基础,是新生代乡村教师从在乡村学校工作的“身在乡... 新生代乡村教师是教师队伍中分化出来的一个新群体,并随着乡村教师群体的代际更替,日渐成为乡村教育场域的中坚力量。增进新生代乡村教师的身份认同,奠定了个体认知与公共认知一致性的基础,是新生代乡村教师从在乡村学校工作的“身在乡”状态向融入乡村教育的“心入场”状态转变的关键环节。新生代乡村教师具有多重身份,三大人性假设理论奠定了新生代乡村教师职业身份、组织身份和专业身份三维具象的丰富内涵。当前,新生代乡村教师面临着身份责任泛化掣肘职业身份认同、情感近城疏乡淡化组织身份认同、社会资本匮乏弱化专业身份认同的多重困境。建立将教师的公共认同转化为新生代乡村教师个体自我认同的落实机制,实现乡村时空、教师身份、教育场域的内在一致性,需要厘清教师角色边界,明确职业身份认同的行为场;丰富乡土关系网络,再造组织身份认同的环境场;重构乡村教育场域,融入专业身份认同的心理场。 展开更多
关键词 新生代 乡村教师 身份认同 场域 身份重塑 职业身份 组织身份 专业身份
在线阅读 下载PDF
不同社会身份组合的创业新手如何选择自举行为?一个基于QCA方法的研究 被引量:1
20
作者 彭学兵 陈梦婕 刘玥伶 《南开管理评论》 北大核心 2025年第3期148-160,共13页
本文运用组态思维整合创业者归属身份与获得身份共计6个条件变量,探究不同社会身份组合的创业新手如何选择自举行为。通过对103个创业新手案例的模糊集定性比较分析(fsQCA)发现:(1)单个身份条件不是创业新手自举行为的必要条件。(2)男... 本文运用组态思维整合创业者归属身份与获得身份共计6个条件变量,探究不同社会身份组合的创业新手如何选择自举行为。通过对103个创业新手案例的模糊集定性比较分析(fsQCA)发现:(1)单个身份条件不是创业新手自举行为的必要条件。(2)男性归属身份和社群型获得身份互为替代关系,都导致兼有达尔文型和使命型获得身份的年轻高学历创业新手选择支付相关自举;社群型获得身份和使命型获得身份互为替代关系,都导致年轻低学历男性创业新手选择联合利用自举。(3)年轻男性混合型获得身份创业新手偏好支付相关自举,而年长女性高学历混合型获得身份创业新手偏好股东相关自举。(4)年轻男性高学历达尔文型和使命型混合获得身份的创业新手偏好支付相关自举,而年轻男性低学历社群型单一获得身份的创业新手偏好联合利用自举。而且年轻男性创业新手的学历归属身份与获得身份以互补关系形成组态,共同影响其自举行为的选择。研究为创业者社会身份与自举行为关系提供了更细粒度的解释,丰富了自举行为前因的解释空间,拓展了社会身份理论的应用场景。 展开更多
关键词 社会身份理论 归属身份 获得身份 自举行为 fsQCA
在线阅读 下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部