Subjects: Mathematics >> Statistics and Probability Subjects: Statistics >> Mathematical Statistics Subjects: Information Science and Systems Science >> Basic Disciplines of Information Science and Systems Science submitted time 2024-05-22
Abstract： Statistical independence is a core concept in statistics and machine learning. Representing and measuring independence are of fundamental importance in related fields. Copula theory provides the tool for representing statistical independence, while Copula Entropy (CE) presents the tool for measuring statistical independence. This paper first introduces the theory of CE, including its definition, theorem, properties, and estimation method. The theoretical applications of CE to structure learning, association discovery, variable selection, causal discovery, system identification, time lag estimation, domain adaptation, multivariate normality test, two-sample test, and change point detection are reviewed. The relationships between the theoretical applications and their connection to correlation and causality are discussed. The frameworks based on CE, the kernel method, and distance correlation for measuring statistical independence and conditional independence are compared. The advantage of CE based on methods over the other comparable methods is evaluated with simulated and real data. The applications of CE in theoretical physics, astrophysics, geophysics, theoretical chemistry, cheminformatics, materials science, hydrology, climatology, meteorology, environmental science, ecology, animal morphology, agronomy, cognitive neuroscience, motor neuroscience, computational neuroscience, psychology, system biology, bioinformatics, clinical diagnostics, geriatrics, psychiatry, public health, economics, management, sociology, pedagogy, computational linguistics, mass media, law, political science, military science, informatics, energy, food engineering, architecture, civil engineering, transportation, manufacturing, reliability, metallurgy, chemical engineering, aeronautics and astronautics, weapon, automobile, electronics, communication, high performance computing, cybersecurity, remote sensing, ocean, and finance are briefly introduced.
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Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： The construction and operation of large-scale research infrastructures involves not only basic scientific research issues, but also complex engineering and management issues. Therefore, strengthening and optimizing professional talent team-building is a key factor in comprehensively improving the effectiveness of large-scale research infrastructures. However, current management system of these infrastructures pays insufficient attention to professional engineering and technical talents and management talents in terms of financial support, talent evaluation, and incentive system construction, which has seriously reduced the stability and work enthusiasm of these talents, which in turn directly restricts the scientific and social benefits of the infrastructures. By investigating several typical domestic large-scale research infrastructures, this study sorts out their problems and difficulties in professional talent team-building. On this basis, combined with the advanced experience of international related infrastructures, this study puts forward three policy suggestions, aiming to enable China to better rely on large-scale research infrastructures to become a world scientific and technological power.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： This study analyzes in detail the effectiveness and existing problems of the current policy implementation of the main functional zone in the “multi planning and integration” national land spatial planning system, and proposes an overall idea of systematizing, differentiating, coordinating, and incentivizing the policy system of the main functional zone in the new era of national land spatial governance. From the perspectives of strengthening the top-level design of policy systems, classifying and improving policy tools for the main functional zone, strengthening comprehensive policy coordination, and improving policy implementation evaluation mechanisms, the policy recommendations are proposed for improving and implementing the strategic system of the main functional areas.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： A networked territorial spatial pattern, centered around major strategic corridors, plays a crucial role in supporting the construction of the new dual-circulation development pattern. The “Two Horizontals and Three Verticals” major strategic corridors that have been formed can effectively promote the concentration of socio-economic factors in major urban agglomerations. However, there exists a mismatch between the north-south vertical strategic corridors and the east-west socio-economic linkages and transportation corridors. Besides, the existing strategic corridors lack sufficient horizontal support for the Beijing-Tianjin-Hebei urban agglomeration, and the land and sea corridors exhibit weak horizontal driving effect and insufficient connection with external corridors. “Three Horizontals and Three Verticals” major strategic corridors should be constructed to realize the integration of domestic strategic corridors and external corridors, to utilize coastal city clusters as a driving force for central and western China, and to support the optimization of the functional zoning strategy.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： The marine-terrestrial interlaced zone serves as a crucial spatial hub linking the functional zoning of both land and sea areas. Optimizing the ecological function, economic function, and national security function of the marine-terrestrial interlaced zone is of significant importance for promoting the coordination between land and sea functional oriented zoning and achieving their mutual beneficial interaction. It also contributes to enhancing the economic, social, and environmental benefits, effectively allocating resources, and advancing social sustainability. Building upon the clarification of the current development status and characteristics of China’s marine-terrestrial interlaced zone, the research systematically examines the key issues existing in the coordination between land and sea functional oriented zoning at the marine-terrestrial interlaced zone. Furthermore, it puts forward key construction tasks and development pathways aimed at enhancing the coordination functions of the marine-terrestrial interlaced zone.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： Since the implementation of the major function oriented zoning, the ecological space of key ecological functional areas has continuously expanded, with a significant increase in vegetation coverage. Concurrently, there has been a dual change in population dynamics, characterized by a decrease in total population and an increase in the urban population. Furthermore, significant achievements have been made in economic and social development, and there has been a steady improvement in the functions of ecological security barriers, contributing to an alleviation of tension in human-environment relationships. During the 15th Five-Year Plan period, it is imperative to adhere to the functional orientation primarily focused on providing ecological services or products. While consolidating provisioning, regulating, supporting, and cultural ecosystem services, there is an increased emphasis on enhancing the quality of these services, thereby constructing a more diversified, stable, and sustainable ecological foundation. Furthermore, exploring compatible functions of eco-product development and utilization promote greening and decarbonization, aiming to establish an inclusive conservation approach that advances modernization characterized by harmony between humanity and nature. In the 15th Five-Year Plan period, ecological regions will not only be crucial components of the new territorial security pattern but also pillars of the new territorial development pattern. Optimization recommendations are as follows. From the perspective of strategic patterns, it is necessary to enhance the spatial connection and supply-demand interaction between ecological security barriers and the territorial development pattern. In detail, continued efforts are needed to consolidate the national ecological security barriers, optimize the pattern of key ecological functional areas, integrate the system of natural protected areas, and strictly adhere to ecological conservation red lines. Moreover, a greater focus should be on upgrading quality of ecosystem service functions through classification, fully implementing the holistic approach to protecting and restoring mountains, rivers, forests, farmlands, lakes, grasslands, and sand, actively fostering new growth drivers for green development, accelerating the establishment of a refined zoning control system, and synergistically advancing reforms and innovations of institutions and mechanisms. These measures aim to support high-quality development in ecological regions through high-standard protection.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： Adjusting and optimizing the strategic paradigm of China’s agricultural regions in the new era is of great significance to the implementation of the “Greater Food” concept and the building of a strong agriculture. This study takes the layout adjustment of China’s agricultural regions during the Fifteenth Five-Year Plan period as its theme, and firstly summarizes the problems that exist in the main agricultural production regions and the layout changes in grain production bases. Then, in conjunction with the new requirements of the national strategies, the functional types of agricultural regions are refined, the different function positions are clarified, the adjusting idea of the agricultural region’s layout is established, and an optimized scheme is put forward for overall layout of agricultural regions, including eight main agricultural production regions, three sub-production regions, and six agricultural advantage production regions (i.e., “8+3+6”). Finally, this study provides specific suggestions for improving the functions of China’s agricultural regions and proper important construction projects.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： Urbanized areas are areas whose main function is to provide industrial and service products. During the 15th Five-Year Plan period, the urbanization rate of China’s population will exceed 70 percent, thus entering a long-time stage of high urbanization levels. The strategic positioning of urbanized areas will be defined as county-level administrative districts with a high concentration of scientific and technological innovation resources, new quality productivity, and new-type industrialization. In terms of strategic layout, the scope of urbanized areas will be optimized to promote the concentration of population and economy in urban agglomerations, metropolitan areas, and central cities, and to strengthen the suburbanization of mega cities, as well as the integrated development of urban and rural areas. In terms of functional upgrading, it will promote the layout of new quality productivity and new industrialization in different urbanized areas according to their comparative advantages, and strengthen the leading role of Beijing-Tianjin-Hebei, the Yangtze River Delta, the Pearl River Delta, and Chengdu-Chongqing area. In terms of spatial quality, it is necessary to promote the livability, intelligence, and resilience of cities.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： The driving force of China’s economic development in the new era is gradually shifting from traditional production factor inputs and export-led growth to scientific and technological innovation-driven development, and technological innovation is increasingly becoming the main engine of China’s economic development. China needs to urgently address difficult issues such as the disconnect between science and technology and the economy, as well as prominent problems such as repeated resource allocation and scattered scientific research forces. Under the complex and volatile development environment, it is necessary to further optimize the spatial collaborative allocation of innovation chains and industrial chains and promote the rational and scientific layout of regional economies. This study analyzes the spatial pattern and development trend of the widening regional differences in China’s innovation chains and industrial chains from the perspective of spatial layout. It is found that there is a mismatch between China’s technological support capabilities and the layout of innovative industries in the national territory. The internal links of the innovation chain are not closely connected, and some industrial chain resources have long allocation distances and short chains. The western region has difficulties in fully integrating into the eastern industrial chain. In response to these characteristics and issues, the study proposes an overall layout strategy of “grasping both ends and releasing the middle”, striving to guide the overall optimization of national economic spatial development by promoting the spatial collaborative allocation of innovation chains and industrial chains.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： The overall strategy of the “four major sectors”, the regional major strategies and the major functional oriented zoning strategy have strongly supported the regional coordinated development in China. However, it also brings the risk of exacerbating the imbalance and incoordination of regional development due to strategic differences and segmentation. Based on an analysis of the trends in regional coordinated development in China, this study puts forward the layout of China’s comprehensive function regions, which divides the mainland of China into 10 regions: the Beijing-Tianjin-Hebei region, the Yangtze River Delta region, the middle reaches of Yangtze River basin, the upper reaches of Yangtze River basin, the Southern coastal region, the lower reaches of Yellow River basin, the Ji shaped bay area of the Yellow River basin, the Northeast region, the arid region of Northwest China, and the Qinghai-Tibet Plateau, with the functional orientation and recent key tasks of different regions addressed. The layout of comprehensive function regions highlights the full coverage of territorial space, and the guidance of core area and major strategies. Moreover, it is conducive to promoting the convergence and integration of the overall strategy of the “four major sectors”, the regional major strategies, and the major functional oriented zoning strategy.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： Major Function Oriented Zone (MFOZ), an attempt and exploration aimed at ecological civilization during China’s industrial civilization period which is divided into two stages, the stage of MFOZ planning and the stage of the national strategy and basic institution before and after the 18th Communist Party of China (CPC) National Congress, and the main characteristics of both stages are analyzed. Since the 18th CPC National Congress, the strategic thinking of the MFOZ has been deeply rooted in the hearts of the people, the strategic pattern of the MFOZ has been basically formed, the development of the categorized MFOZ has achieved remarkable progress, and the MFOZ mechanism has been initially established. It is proposed that the MFOZ will continue to play a greater strategic and fundamental role in the Chinese-style modernization. As a major strategy, plan and institutional arrangement for implementing the leadership of the Communist Party of China, giving full play to the advantages of the socialist system, and realizing modern spatial governance from top to bottom, the MFOZ should further strengthen the development and protection orientation towards land space, which is people-centered, with high-quality development as the primary task, and new development pattern as the strategic basis, MFOZ should expand new functions that meet the people’s aspirations for a better life and the national security needs, and rely on a sound spatial governance system to establish more precise MFOZ development guidelines and supporting policies.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： Since the 18th National Congress of the Communist Party of China, China’s regional coordinated development has shown a sound trend through measures such as poverty alleviation, ecological civilization construction, and the implementation of major regional strategies. During the 15th Five-Year Plan period, China’s regional coordinated development is faced with the huge challenge of global resource and environmental supply shortage, slow and weak consumption growth in China and the world’s major economies, multi-sided suppression by developed countries, and continuous catch-up by developing countries with low-cost advantages. This study first puts forward some new academic thoughts, such as the equilibrium theory of spatial development, the spatial organization theory of node source and sink in economic network, and the spatial convergence theory of innovation chain-industry chain. On the basis of theoretical innovation, it has clarified the strategic key points of attaching equal importance to creating new driving forces for the development of developed areas and fostering the development of growth poles in underdeveloped areas, as well as taking coordinated regional development as the approach to Chinese-style modernization in the near future. The research holds that scientific and technological innovation plays a leading role in promoting regional coordinated development. Building a regional model of “scientific and technological innovation system + new quality productivity layout” according to local conditions, forming a new development pattern of comprehensive functional areas, promoting the westward shift of the focus of resource utilization industry layout, and attaching importance to cultivating the function of growth poles in key areas should become the main paths for regional coordinated development. Finally, the strategic and fundamental role of the major functional zoning is discussed.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract：
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： For the first time, this study draws an Innovation Science Structure Map using the scientific structure mapping analysis method. It takes Essential Science Indicators (ESI) highly cited papers referenced in patents as the foundatial analyzing data, revealing the impact of leading-edge fundamental research on the development of technological innovation worldwide. It identifies the hotspot areas that are driving the advancement of technological innovation and compares the performance between China and the United States in these areas, providing robust data support for informed scientific decision-making. The analysis reveals that papers with a high number of patent references are primarily concentrated in emerging biotechnology and biomedical fields, as well as in new information technology, energy, and materials sectors that are likely to trigger disruptive technological innovations. There is a noticeable growth trend in China for papers with high citation counts referenced in patents, with a five-year cumulative growth exceeding 60%, but the total number is still less than half of that in the United States. The number of papers from China in many research hotspots closely associated with technological innovation is higher than that of the United States. Still, the count of papers referenced in patents is usually lower. The United States tends to fundamental research that influences technological innovation, leading more towards industrial transformation-related R&D activities, and involves a large number of enterprises.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
WANG Shijin
KANG Shichang
CHEN Tuo
HE Yuanqing
YANG Meixue
LI Quanlian
NIU Hewen
PU Tao
ZHANG Binglin
CHE Yanjun
GUO Wanqin
YAN Xingguo
MA Xinggang
WANG Rongjun
Abstract： After nearly 20 years of development, the Yulong Snow Mountain National Field Observation and Research Station for Cryosphere and Sustainable Development, Chinese Academy of Sciences has built a field comprehensive observation system and data online visualization platform of temperate glacier and environment integrating observation, research, demonstration, and service. Based on the long-term positioning monitoring of temperate glaciers and the environment, and focusing on key scientific issues related to sustainable development in temperate glacier areas, this study deeply analyzes the mechanism of changes in temperate glaciers, reveals the hydrological, microorganisms, and climatic effects of temperate glacier change, evaluates the effectiveness of temperate glacier tourism services and integrated risk of glacial lake outburst disasters, and provides scientific and technological support for regional sustainable development.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： Rural revitalization is a major task in realizing the great rejuvenation of the Chinese nation. Agriculture is the foundation of rural areas, and developing smart agriculture is an important means to realize rural revitalization. The southern hilly and mountainous areas are the concentrated distribution areas of land desertification in China, with obvious disadvantages in agricultural infrastructure, large poverty areas, and deep poverty levels. They are the “hard bones” that are difficult to tackle in rural revitalization in China. In the important period of consolidating and expanding the achievements of poverty alleviation and continuously promoting rural revitalization, under the background of the vigorous development of high technologies such as the Internet of Things, artificial intelligence, and big data, the issues that urgently need to be thought about and solved include: how to realize informatization in the southern hills and mountains, how to find a reasonable path of modern agricultural and rural development, and how to drive rural peace and prosperity with agricultural development. Based on the basic status quo of population, cultivated land, and landforms in the southern hills and mountains, this study analyzes thoroughly the pain points that limit the development of agriculture in the southern hills and mountains. Focusing on the whole process of intelligent perception, intelligent communication, intelligent decision-making and intelligent operation of smart agriculture, it proposes ideas and steps for developing smart agriculture in the southern hills and mountains of China with the help of information and intelligent means. With the aim to form a set of smart agriculture development model to help rural revitalization in southern China, it will take Shuicheng County in Guizhou Province as an example to demonstrate before promoting it in an all-round way on a large scale. Finally, focusing on the shortcomings and challenges of the development of smart agriculture in the southern hills and mountains, four development suggestions are put forward.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： In contemporary society, scientific and technological advancements have not only profoundly transformed people’s modes of production and daily life but have also engendered significant political implications. Political studies of science and technology systematically examines political phenomena associated with science and technology, exploring the interrelation between science & technology and politics, and unveiling the essence and law of political phenomena in scientific and technological activities. Although numerous studies on the political aspects of science & technology have been conducted worldwide, they are largely scattered across diverse academic disciplines such as science studies, science and technology policy, philosophy of science, and sociology of scientific knowledge. Consequently, a mature academic community and a universally recognized and distinct paradigm are yet to be established. This study proposes that the discipline of political studies of science and technology should explicitly adopt a political science research approach. Efforts should be made to establish a research agenda focusing on the “two-way relationship” between science & technology and politics. The agenda should include the political analysis of the history of science, deepen the political philosophical study of the relationship between science and power, extend empirical studies in political studies of science and technology, and establish a Chinese independent knowledge system in political studies of science and technology.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
BIAN Wenyue
LIANG Xingjie
GE Chunlei
HUI Zhongyang
JIA Xiaoqi
LIU Si
YE Jing
CHEN Xiaoyi
WANG Wenjun
JU Huajun
Abstract： Nanoscale science and technology (nano S&T) are at the frontier of global strategic high-tech competition. After examining nearly 160 strategy and planning documents released by scientific and technological powerhouses from 2000 to 2023, the study finds ten common approaches adopted by the powerhouses to advance nano S&T as follows. (1) Recognizing nano S&T as a key area for the economy and global competition. (2) Establishing cross-department organizations to meet the cross-disciplinary nature of nano S&T. (3) Developing strategic plans to guide the development of nano S&T and implementing major programs with significant investment. (4) Establishing multidisciplinary nano S&T research centers based upon institutions with strength. (5) Building and maintaining physical and cyber R&D infrastructures for nano S&T. (6) Promoting convergence of nanotechnology, information technology, biotechnology, and cognition science. (7) Establishing facilities to accelerate the commercialization of promising discoveries. (8) Paying close attention to the possible effects of nano S&T on the environment and human health. (9) Developing a skilled workforce and recruiting overseas talents. (10) Engaging in international collaborations. The study also finds that the powerhouses have continued to pay close attention to nano S&T during the past three years, focusing on issues such as leveraging nano S&T to help address significant societal challenges and preparing for the oncoming data-intensive R&D paradigm. Moreover, the study discusses the progress and shortcomings of nano S&T in China and proposes suggestions for R&D in the future after taking account of the findings presented above. The suggestions include promoting the commercialization of promising R&D, building and maintaining nanomaterial databases, establishing nano S&T think tanks, and putting in place a system of developing talent who can adapt to scientific and technological trends and meet the demands of the development of nano S&T.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： As a critical digital infrastructure, computing power has become the core productivity and a new engine driving economic growth in the digital economy. Nevertheless, the power-hungry nature of computing/data centers, representing the computing infrastructure, consumes a significant amount of electrical energy. Currently, China’s economy is transitioning from high-speed growth to high-quality development. It is imperative to study how to coordinate the development of computing power while ensuring its safety and achieving green and low-carbon goals. Based on an overview of the current status of computing power development, this study predicts the future demand for computing power in China, analyzes the relationship between future computing power growth and electricity consumption, and discusses the associated challenges. From the perspectives of top-level design, regional layout, platform construction, and market mechanisms, this study proposes strategies and measures to accelerate the green and low-carbon transformation of computing power, providing support for sustainable computing power transformation and empowering the highquality development of the digital economy.
Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： Marine carbon sequestration trading is the inherent requirement and effective mechanism for marine eco-civilization development, maritime economic strategy. The research compares and analyzes the policies and practices of China’s marine carbon sequestration trading, and looks forward its future development tendency. It is pointed points out that under the framework of the national Dual Carbon goals, especially in “1+N” policy, the top-level system of China’s marine carbon sequestration trading has initially formed. Many relevant industry standards have been introduced and implemented at the national level. Then at the local level, some regions have introduced and implemented marine carbon sequestration calculation guidelines or methodologies of typical marine carbon sequestration. In addition, the operational policy of marine carbon sequestration trading is gradually being formulated. Furthermore, some areas have carried out exploratory practices of marine carbon sequestration trading, including mangroves, bivalves, macroalgae, salt marshes, and other trading targets. The trading methods being practiced include purchase, insurance, credit loans, auctions, and other means. The policy development and exploratory trading of marine carbon sequestrations have accumulated valuable experience for more standardized trading of marine carbon sequestrations in the future. However, issues such as non-standard processes, non-standard verification and reports, lack of trading platforms, and the low-price nature, have led to the slow progress of the optimal allocation of carbon resources and the transformation of marine economy. As such, the research recommends on how marine carbon sequestrations trading should be promoted in the future, including the inclusion of marine carbon sequestrations into the China Certified Emission Reduction (CCER) -based trading system, the improvement of operational policies focusing on methodological development, and the optimization of trading processes, methods, platforms, etc.
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