期刊文献+
共找到997篇文章
< 1 2 50 >
每页显示 20 50 100
Open World Recognition of Communication Jamming Signals 被引量:3
1
作者 Yan Tang Zhijin Zhao +4 位作者 Jie Chen Shilian Zheng Xueyi Ye Caiyi Lou Xiaoniu Yang 《China Communications》 SCIE CSCD 2023年第6期199-214,共16页
To improve the recognition ability of communication jamming signals,Siamese Neural Network-based Open World Recognition(SNNOWR)is proposed.The algorithm can recognize known jamming classes,detect new(unknown)jamming c... To improve the recognition ability of communication jamming signals,Siamese Neural Network-based Open World Recognition(SNNOWR)is proposed.The algorithm can recognize known jamming classes,detect new(unknown)jamming classes,and unsupervised cluseter new classes.The network of SNN-OWR is trained supervised with paired input data consisting of two samples from a known dataset.On the one hand,the network is required to have the ability to distinguish whether two samples are from the same class.On the other hand,the latent distribution of known class is forced to approach their own unique Gaussian distribution,which is prepared for the subsequent open set testing.During the test,the unknown class detection process based on Gaussian probability density function threshold is designed,and an unsupervised clustering algorithm of the unknown jamming is realized by using the prior knowledge of known classes.The simulation results show that when the jamming-to-noise ratio is more than 0d B,the accuracy of SNN-OWR algorithm for known jamming classes recognition,unknown jamming detection and unsupervised clustering of unknown jamming is about 95%.This indicates that the SNN-OWR algorithm can make the effect of the recognition of unknown jamming be almost the same as that of known jamming. 展开更多
关键词 communication jamming signals Siamese Neural Network open world Recognition unsupervised clustering of new jamming type Gaussian probability density function
下载PDF
Xinjiang Opens Its Door to the World——An interview with Wang Lequan,Vice-Chairman of the Standing Committee of the Xinjiang Uygur Autonomous Region 被引量:1
2
作者 Jiang Min 《China's Foreign Trade》 1995年第1期11-11,共1页
Xinjiang is a good place, with pastureland to the north and south of the Tianshan MountainThe Gobi Desert has been changed into fertile fields, irrigated by melting snows.
关键词 An interview with Wang Lequan Vice-Chairman of the Standing Committee of the Xinjiang Uygur Autonomous Region WANG Xinjiang opens Its Door to the world
下载PDF
Wenzhou Opening to World
3
作者 Zeng Huanyong Director of Wenzhou Commission of Foreign Trade and Economic Cooperation 《China's Foreign Trade》 1994年第10期16-16,共1页
Wenzhou obtained the right to handle import and export trade in 1988. In 1993 its export volume was US$ 100 million, including US$52 million earned by foreign trade corporations. It has established trade relations wit... Wenzhou obtained the right to handle import and export trade in 1988. In 1993 its export volume was US$ 100 million, including US$52 million earned by foreign trade corporations. It has established trade relations with over 60 countries and regions. 展开更多
关键词 Wenzhou opening to world US
下载PDF
TPFTZ(Tianjin Port Free Trade Zone)——A New Pattern of China's Openning to the Outside World
4
作者 Zhu Qinyuan: Director of Administrative Committe of the TPFTZ Shen Huan 《南开经济研究》 CSSCI 北大核心 1994年第S1期35-39,20,共6页
Under the guidance of Deng Xiao-ping’s strategic think-ing of openning to the outside world, the structure of om-nibearing openness has basically taken shape in China. Follow-
关键词 Free TPFTZ Tianjin Port Free Trade Zone A New Pattern of China’s openning to the Outside world
下载PDF
Sichuan Opening to the Ontisde World
5
《China's Foreign Trade》 1996年第10期19-20,共2页
Expanding its opening is a major eventin the economic development ofSichuan, a big hinterland province inChina. Sichuan will adhere to the guidelineof promoting development by opening, andpromoting further progress by... Expanding its opening is a major eventin the economic development ofSichuan, a big hinterland province inChina. Sichuan will adhere to the guidelineof promoting development by opening, andpromoting further progress by exploitation,and make full use of two resources, twomarkets at home and abroad and becomeactively involved in exchange and competitionat home and abroad. It will further strengthenthe work of foreign trade, foreign capital,foreign economy, foreign affairs and tradingport, and by the turn of this century, moredevelopment will be made in the foreign-oriented economy of the whole province,creating a new way for the hinterland 展开更多
关键词 Sichuan opening to the Ontisde world MODE
下载PDF
That Jiang Zemin Stressed China Must Further Expand Opening to Outside World after WTO Entry
6
《China's Foreign Trade》 2002年第11期2-3,共2页
关键词 WTO world That Jiang Zemin Stressed China Must Further Expand opening to Outside world after WTO Entry
下载PDF
Evaluation of the Degree of Opening to the Outside World in Guizhou Province
7
作者 Kaifeng YU 《Asian Agricultural Research》 2019年第7期1-4,7,共5页
The goal of economic opening to the outside world is an important basis for formulating and implementing the policy of opening. Different economic development strategies have different requirements for the degree of e... The goal of economic opening to the outside world is an important basis for formulating and implementing the policy of opening. Different economic development strategies have different requirements for the degree of economic opening to the outside world. Guizhou should implement the open economy and adopt the export-oriented development strategy, which objectively requires Guizhou to gradually improve the degree of opening to the outside world. 展开更多
关键词 DEGREE of openING to the OUTSIDE world FOREIGN trade Utilization of FOREIGN capital GUIZHOU
下载PDF
China Needs the World,and the World Needs China——Mr.Li Lanqing on China's economic opening to the outside world
8
《China's Foreign Trade》 1997年第11期5-6,共2页
Mr. Li Lanqing, Vice Premier of the State Council, expounded on China’s economy heading towards the 21st century,at the 32nd ICC World Congress. He said: China is greeting the 19th year of its reform and opening to t... Mr. Li Lanqing, Vice Premier of the State Council, expounded on China’s economy heading towards the 21st century,at the 32nd ICC World Congress. He said: China is greeting the 19th year of its reform and opening to the outside world. In the past 18 years, especially in the 1990s,China’s economy, as an integral part of the world economy, has assumed three interrelated new features, under the circumstances of speeding up the development, deepening the reform, and expanding the opening. 1. Lasting trend for sustained and rapid economic growth. China has 1.2 billion people with everrising income and consumption levels and huge market demand, and the Chinese people have the habit of saving. So there are large amounts of bank deposits to 展开更多
关键词 world Mr.Li Lanqing on China’s economic opening to the outside world China Needs the world and the world Needs China LI
下载PDF
China's Onshore Oil Industry is in Full Scale Opening to the Outside World
9
作者 Zhao Xueming and Wei Fang(International Bureau, CNPC) 《China Oil & Gas》 CAS 1995年第2期55-56,共2页
China'sOnshoreOilIndustryisinFullScaleOpeningtotheOutsideWorld¥ZhaoXuemingandWeiFang(InternationalBureau,CNP... China'sOnshoreOilIndustryisinFullScaleOpeningtotheOutsideWorld¥ZhaoXuemingandWeiFang(InternationalBureau,CNPC)In1994,China'so... 展开更多
关键词 China’s Onshore Oil Industry is in Full Scale opening to the Outside world
下载PDF
The 6th World Chinese Entrepreneurs Convention to Open in Nanjing
10
《China Today》 2001年第6期30-31,共2页
关键词 world The 6th world Chinese Entrepreneurs Convention to open in Nanjing
下载PDF
Open the Gate and Embrace the World──A Visit to Tianjin Mayor Li Shenglin
11
《China Today》 2000年第11期12-15,共4页
关键词 open the Gate and Embrace the world Li A Visit to Tianjin Mayor Li Shenglin world
下载PDF
"NEW ERA" IN CHINA: OPENING UP A NEW CHAPTER IN WORLD SOCIALISM
12
作者 CHAI SHANGJIN 《Contemporary World》 2018年第2期6-9,共4页
In the report he delivered at the 19th National Congress of the Communist Party of China and other important speeches, General Secretary Xi Jinping stressed that socialism with Chinese characteristics entering a new e... In the report he delivered at the 19th National Congress of the Communist Party of China and other important speeches, General Secretary Xi Jinping stressed that socialism with Chinese characteristics entering a new era means scientific socialism is full of vitality in 21st century China, and the success of scientific socialism in China is of vital significance to the world socialism, as it enriches mankind's imagination for a better world and stands at the forefront of the development of political civilization for the bumanity. These statements provide important theoretical guidance for us to better understand the historical position of socialism with Chinese characteristics and gain deep insights into the historical and logical correlation between socialism with Chinese characteristics for a new era and the world socialism. 展开更多
关键词 "NEW ERA" IN CHINA NEW CHAPTER world SOCIALISM
下载PDF
Grand Opening of the Plenary Meeting on Publicity of the 2005 World Standard Day
13
《China Standardization》 2005年第6期1-3,共3页
Organized by the Standard Administration of China (SAC), the plenary meeting on publicity of the 2005 World Standards Day was held on October 14, 2005 at the Great Hall of People. Surrounding the theme of this year... Organized by the Standard Administration of China (SAC), the plenary meeting on publicity of the 2005 World Standards Day was held on October 14, 2005 at the Great Hall of People. Surrounding the theme of this year's World Standards Day - "Standards for a Safer World", the meeting made publicized the status of construction and implementation of the food safety and production safety standard system of our country,the result of clearance on national standards and the announcement of formal operation of the system for online free-of-charge access to the full text of national compulsory standards, and the system for online distribution and service of national standards. Attending the meeting were Li Changjiang, Director of AQSIQ, Li Chuanqing,Party Group Secretary of AQSIQ, Li Zhonghai, Director of SAC, high-ranking officers of relevant departments of the State Council, Chen Xiaohong, Vice-minister of Ministry of Health, Wang Xianzheng, Vice-director of the National General Bureau of Supervision and Administration on Production Safety, and representatives and experts from enterprises of various sectors with a total of over 300 people. The meeting was presided over by Zhang Yanhua, Standing Vice-director of SAC. 展开更多
关键词 world Grand opening of the Plenary Meeting on Publicity of the 2005 world Standard Day
下载PDF
Uplifting a Nation China’s 40 years of reform and opening up has brought tangible benefits to its people and the world
14
作者 Ni Yanshuo 《ChinAfrica》 2018年第12期14-17,共4页
Beijing resident Li Zhangzhe, 58, still keeps a pair of sunglasses he bought nearly 40 years ago.
关键词 Li Uplifting a Nation China’s 40 years of reform and opening up has brought tangible benefits to its people and the world
下载PDF
Open shop复杂调度网络模型及特征分析 被引量:3
15
作者 宣琦 吴铁军 《浙江大学学报(工学版)》 EI CAS CSCD 北大核心 2011年第4期589-595,共7页
给出open shop复杂调度网络模型,即通过将open shop复杂调度对象描述成复杂网络,并将相关的复杂调度问题描述成对应复杂网络上的节点遍历问题,从而将复杂调度问题纳入复杂网络理论体系进行研究.分析几个复杂调度网络场景的一些基本结构... 给出open shop复杂调度网络模型,即通过将open shop复杂调度对象描述成复杂网络,并将相关的复杂调度问题描述成对应复杂网络上的节点遍历问题,从而将复杂调度问题纳入复杂网络理论体系进行研究.分析几个复杂调度网络场景的一些基本结构特征,发现复杂调度网络具有小世界、模块化等很多现实复杂网络共同具有的特点.前者说明调度对象事件之间具有较强的局部和全局耦合;后者能够为分块解决复杂调度问题提供理论基础.复杂调度网络中的平均度值和平均聚类系数与调度目标即网络平均遍历时间具有较强的关联,网络平均度值和网络平均遍历时间基本满足对数关系,这为后续设计基于复杂网络特征的调度规则提供启发式信息.给出网络可折叠度的概念,发现复杂调度网络本质上具有较大的网络可折叠度,可以通过折叠复杂调度网络来降低它的复杂度,从而提高后续的分析和算法执行效率. 展开更多
关键词 open SHOP 复杂网络 节点遍历 小世界 模块化结构 可折叠度
下载PDF
World-Wide Semantic Web of Agriculture Knowledge 被引量:1
16
作者 Dickson Lukose 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2012年第5期769-774,共6页
The rapid increase in the publication of knowledge bases as linked open data (LOD) warrants serious consideration from all concerned, as this phenomenon will potentially scale exponentially. This paper will briefly ... The rapid increase in the publication of knowledge bases as linked open data (LOD) warrants serious consideration from all concerned, as this phenomenon will potentially scale exponentially. This paper will briefly describe the evolution of the LOD, the emerging world-wide semantic web (WWSW), and explore the scalability and performance features Of the service oriented architecture that forms the foundation of the semantic technology platform developed at MIMOS Bhd., for addressing the challenges posed by the intelligent future internet. This paper" concludes with a review of the current status of the agriculture linked open data. 展开更多
关键词 linked open data world wide semantic web AGRICULTURE KNOWLEDGE ONTOLOGY semantic technology service oriented architecture
下载PDF
The Economic Contribution and World Influence of China's Reform and Development Governance
17
作者 Zhao Hongjun Gao Fan Yi Xin 《Contemporary Social Sciences》 2019年第2期107-120,共14页
This article summarizes a series of valuable accomplishments of China's government in promoting economic development, reducing poverty, maintaining social stability, and increasing people's prosperity since 19... This article summarizes a series of valuable accomplishments of China's government in promoting economic development, reducing poverty, maintaining social stability, and increasing people's prosperity since 1949. It summarizes the economic analysis framework of development governance in mainstream economics, and further analyzes the connotations and extensions of the conceptual framework. This paper also summarizes some of the core economic characteristics embodied in China's Reform and Development Governance since the reform, and further explores the necessity and direction of its future modernization and its impacts on different countries and regions in the world. 展开更多
关键词 China's development GOVERNANCE REFORM and opening-up ECONOMIC CONTRIBUTION world INFLUENCE
下载PDF
Classification of knowledge graph completeness measurement techniques
18
作者 ZHANG Ying XIAO Gang 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2024年第1期154-162,共9页
At present,although knowledge graphs have been widely used in various fields such as recommendation systems,question and answer systems,and intelligent search,there are always quality problems such as knowledge omissi... At present,although knowledge graphs have been widely used in various fields such as recommendation systems,question and answer systems,and intelligent search,there are always quality problems such as knowledge omissions and errors.Quality assessment and control,as an important means to ensure the quality of knowledge,can make the applications based on knowledge graphs more complete and more accurate by reasonably assessing the knowledge graphs and fixing and improving the quality problems at the same time.Therefore,as an indispensable part of the knowledge graph construction process,the results of quality assessment and control determine the usefulness of the knowledge graph.Among them,the assessment and enhancement of completeness,as an important part of the assessment and control phase,determine whether the knowledge graph can fully reflect objective phenomena and reveal potential connections among entities.In this paper,we review specific techniques of completeness assessment and classify completeness assessment techniques in terms of closed world assumptions,open world assumptions,and partial completeness assumptions.The purpose of this paper is to further promote the development of knowledge graph quality control and to lay the foundation for subsequent research on the completeness assessment of knowledge graphs by reviewing and classifying completeness assessment techniques. 展开更多
关键词 quality assessment completeness assessment closed world assumptions open world assumption partial completeness assumption
下载PDF
世界教育中心的变迁与中国教育强国建设的战略选择 被引量:1
19
作者 祁占勇 桑晓鑫 《云南师范大学学报(哲学社会科学版)》 CSSCI 北大核心 2024年第5期104-114,共11页
加快推进教育强国建设,跻身世界重要教育中心,是中国教育走进世界舞台中央、提升全球影响力、增强国际竞争力的必然之举和未来趋势。近代以来,意大利、英国、法国、德国、美国曾先后成为世界教育中心。世界教育中心的基本特征主要体现... 加快推进教育强国建设,跻身世界重要教育中心,是中国教育走进世界舞台中央、提升全球影响力、增强国际竞争力的必然之举和未来趋势。近代以来,意大利、英国、法国、德国、美国曾先后成为世界教育中心。世界教育中心的基本特征主要体现在教育思想理论引领力、教育体制机制革新力、教育生态系统承载力、教育质量效能辐射力、教育对外开放影响力等5个方面。在教育强国建设进程中,为建成21世纪世界重要教育中心,中国教育应积极抢抓战略机遇,乘势而上、主动作为,致力于构建具有中国精神、中国特色的现代教育理论体系;深化教育领域综合改革,推进教育治理能力现代化;加快教育规模扩容增位,优化教育结构与资源布局;持续强化教育质量效益,高水平服务民族复兴伟业;全面扩大教育对外开放,提升中国教育国际影响力。 展开更多
关键词 世界教育中心 教育强国 教育对外开放 教育国际化 教育治理能力
下载PDF
大数据时代企业数字化转型、智力资本与投资效率 被引量:1
20
作者 张月玲 张文涵 《中国海洋大学学报(社会科学版)》 2024年第4期74-88,共15页
以2017—2021年沪深A股上市公司为研究对象,研究企业数字化转型与投资效率之间的关系,同时分析在企业智力资本的影响下,数字化转型对企业投资效率产生的影响,并进一步研究不同的对外开放程度对地区企业数字化转型投资效率的不同影响。... 以2017—2021年沪深A股上市公司为研究对象,研究企业数字化转型与投资效率之间的关系,同时分析在企业智力资本的影响下,数字化转型对企业投资效率产生的影响,并进一步研究不同的对外开放程度对地区企业数字化转型投资效率的不同影响。研究结果表明,企业数字化转型对投资效率有促进作用,并且对处于对外开放程度高的地区的企业,促进作用更加明显。同时,数字化转型能够通过提高智力资本这一路径提高企业的投资效率。 展开更多
关键词 大数据 非效率投资 数字化转型 智力资本 对外开放
下载PDF
上一页 1 2 50 下一页 到第
使用帮助 返回顶部