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
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.
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
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-
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
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
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
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
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
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
基金supported by the National Natural Science Foundation of China(U19B2016)Zhejiang Provincial Key Lab of Data Storage and Transmission Technology,Hangzhou Dianzi University。
文摘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.
文摘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.
文摘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.
文摘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-
文摘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
基金Supported by Guizhou Soft Science Project in 2015(2015LSK2012)Major Innovation Support Project of Guizhou Academy of Social Sciences(ZD02)
文摘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.
文摘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
文摘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.
文摘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.
基金supported by the National Key Laboratory for Complex Systems Simulation Foundation(6142006190301)。
文摘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.
