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The Innovation 2024年第1期5卷 13-14页

作者： Guanglei Yang Donglan Zha Dongqin Cao Guoxing Zhang school of management Lanzhou UniversityLanzhou 730000China College of Economics and management Nanjing University of Aeronautics and AstronauticsNanjing 211106China school of Economics Lanzhou UniversityLanzhou 730000China

The concept of energy transition was initially proposed by the German Academy of Sciences in 1980,advocating for the abandonment of nuclear power and oil in response to the energy *** that time,insufficient attention was given to the energy *** 1980 to 1992,the global economy experienced significant growth,with the gross domestic product doubling from 11.34 trillion dollars to 25.41 trillion dollars(data from the World Bank).

关键词： Sustainable dollar transition

Landslide Research from the Perspectives of Qinling Mountains in China: A Critical Review

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Journal of Earth Science 2024年第5期35卷 1546-1567页

作者： Liye Feng Wenwen Qi Chong Xu Wentao Yang Zhiqiang Yang Zikang Xiao Zhaoning Chen Tao Li Xiaoyi Shao Huiran Gao Zhiwen Xue National Institute of Natural Hazards Ministry of Emergency Management of China school of Soil and Water Conservation Beijing Forestry University Key Laboratory of Compound and Chained Natural Hazards Dynamics Ministry of Emergency Management of China school of Emergency management Science and Engineering University of Chinese Academy of Sciences

Landslides pose a frequent geological threat, endangering both productivity and the wellbeing of human life and property. In recent years, landslides have received widespread attention in various fields. This article presents a comprehensive review of landslide research in the Qinling Mountains, China. The first part introduces landslide investigation and inventory, which include manual visual interpretation and automatic landslide extraction. The second part discusses the types, characteristics, and temporal-spatial distribution of landslides in the Qinling Mountains. In the third part, the mechanisms and stability analysis of landslides are explored, along with a discussion of the applicability of various simulation methods. The fourth part focuses on significant studies related to landslide evaluation, including susceptibility, hazard, and risk assessment. The fifth part addresses landslide monitoring and early warning systems. Finally, an assessment is made of the current issues and research status concerning landslide studies in the Qinling Mountains, followed by a discussion on future research directions.

关键词： Qinling Mountains landslide review engineering geology

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A Degradation Type Adaptive and Deep CNN-Based Image Classification Model for Degraded Images

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工程与科学中的计算机建模(英文) 2024年第1期138卷 459-472页

作者： Huanhua Liu Wei Wang Hanyu Liu Shuheng Yi Yonghao Yu Xunwen Yao school of Information Technology and management Hunan University of Finance and EconomicsChangsha410205China

Deep Convolutional Neural Networks(CNNs)have achieved high accuracy in image classification tasks,however,most existing models are trained on high-quality images that are not subject to image *** practice,images are often affected by various types of degradation which can significantly impact the performance of *** this work,we investigate the influence of image degradation on three typical image classification CNNs and propose a Degradation Type Adaptive Image Classification Model(DTA-ICM)to improve the existing CNNs’classification accuracy on degraded *** proposed DTA-ICM comprises two key components:a Degradation Type Predictor(DTP)and a Degradation Type Specified Image Classifier(DTS-IC)set,which is trained on existing CNNs for specified types of *** DTP predicts the degradation type of a test image,and the corresponding DTS-IC is then selected to classify the *** evaluate the performance of both the proposed DTP and the DTA-ICMon the Caltech 101 *** experimental results demonstrate that the proposed DTP achieves an average accuracy of 99.70%.Moreover,the proposed DTA-ICM,based on AlexNet,VGG19,and ResNet152,exhibits an average accuracy improvement of 20.63%,18.22%,and 12.9%,respectively,compared with the original CNNs in classifying degraded *** suggests that the proposed DTA-ICM can effectively improve the classification performance of existing CNNs on degraded images,which has important practical implications.

关键词： Image recognition image degradation machine learning deep convolutional neural network

Performance evaluation of seven multi-label classification methods on real-world patent and publication datasets

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Journal of Data and Information Science 2024年第2期9卷 81-103页

作者： Shuo Xu Yuefu Zhang Xin An Sainan Pi College of Economics and management Beijing University of TechnologyBeijing 100124China school of Economics&management Beijing Forestry UniversityBeijing 100083China

Purpose:Many science,technology and innovation(STI)resources are attached with several different *** assign automatically the resulting labels to an interested instance,many approaches with good performance on the benchmark datasets have been proposed for multi-label classification task in the ***,several open-source tools implementing these approaches have also been ***,the characteristics of real-world multi-label patent and publication datasets are not completely in line with those of benchmark ***,the main purpose of this paper is to evaluate comprehensively seven multi-label classification methods on real-world *** limitations:Three real-world datasets differ in the following aspects:statement,data quality,and ***,open-source tools designed for multi-label classification also have intrinsic differences in their approaches for data processing and feature selection,which in turn impacts the performance of a multi-label classification *** the near future,we will enhance experimental precision and reinforce the validity of conclusions by employing more rigorous control over variables through introducing expanded parameter *** implications:The observed Macro F1 and Micro F1 scores on real-world datasets typically fall short of those achieved on benchmark datasets,underscoring the complexity of real-world multi-label classification *** leveraging deep learning techniques offer promising solutions by accommodating the hierarchical relationships and interdependencies among *** ongoing enhancements in deep learning algorithms and large-scale models,it is expected that the efficacy of multi-label classification tasks will be significantly improved,reaching a level of practical utility in the foreseeable ***/value:(1)Seven multi-label classification methods are comprehensively compared on three real-world datasets.(2)The TextCNN and

关键词： Multi-label classification Real-World datasets Hierarchical structure Classification system Label correlation Machine learning

Can whole steps of grain production be outsourced? Empirical analysis based on the three provinces of Jiangsu,Jilin,and Sichuan in China

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Journal of Integrative Agriculture 2024年第1期23卷 336-347页

作者： Jiacheng Liu Shengzhi Mao Qiufen Zheng Zhigang Xu school of Finance and Taxation Nanjing University of Finance and EconomicsJiangsu 210023China school of Economics Southwestern University of Finance and EconomicsSichuan 611130China school of Economics and management Nanjing Agricultural UniversityJiangsu 210095China

Certain outsourcing services for agricultural management in China,such as pest control in grain production,have experienced prolonged sluggishness,contrasting with the relatively high level of outsourcing services observed in harvesting,land preparation,and *** study examines the feasibility of implementing whole-step outsourcing in grain production by conducting a case study of rice and maize production in Jiangsu,Jilin,and Sichuan provinces in *** provision of outsourcing services hinges on two essential conditions:technological advancements fostering specialized production and economies of scale,coupled with a market size sufficient to realize the aforementioned potential economies of *** results showed that outsourcing pest control or harvesting services had varying economies of *** outsourcing services in pest control were less common than in harvesting services,and their marginal growth space of the economies of scale with technological change was also *** by the operational characteristics of pest control itself,the market scale of its professional services is ***,achieving the whole-step outsourcing of grain production necessitates not only technological innovation but also effective policy interventions to overcome the constraints of market *** interventions include(1)optimizing crop layouts between planning regions and reducing land fragmentation and(2)supplying timely and effective inter-regional agricultural information for service providers aided by information technology.

关键词： outsourcing services economy of scale technical conditions market scale

The Impetus for RCEP in Facilitating the High-quality Development of the Tourism Service Trade in Yunnan Province,China

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Journal of Resources and Ecology 2024年第4期15卷 966-976页

作者： LIU Mengyuan XIE Hongzhong ZHU Tao school of Tourism and Hospitality management Yunnan University of Finance and EconomicsKunming 650221China

The present world pattern has undergone major changes,the trend of world multi-polarization is constantly emerging,and peace and development remain the main themes of today’s *** formal signing and implementation of the Regional Comprehensive Economic Partnership(RCEP)is important for meeting the needs of peace and development of many countries and *** is in a new era of reform and opening-up,and the RCEP content is in line with China’s concept of pursuing a path of *** on the locations of important borders,Yunnan Province has become one of the key places for China’s opening-up and development regarding Southeast Asia and South Asia,and the high-quality development of its tourism service trade is of great *** study first used the grounded theory analysis method to organize,analyze and process the records of international conferences and government press conferences held in Yunnan Province,as well as important related issues since the signing of ***,the social network analysis method was used to analyze the social recognition degree of RCEP in promoting the high-quality development of the tourism service trade in Yunnan Province from the perspectives of different levels and group *** results show that cooperation is the key macro driving force for RCEP in promoting the high-quality development of the tourism service trade in Yunnan *** the opportunities and environment of the transportation dividend,policy dividend and investment dividend,port construction,border township construction and exhibition-related construction are important cooperation contents,so they are conducive to the recovery of the tourism industry in a broader development *** can improve the driving force of RCEP in promoting the high-quality development of the tourism service trade in Yunnan Province at the micro level,and has more practical *** example,RCEP can better rely on its own geographic

关键词： RCEP tourism service trade dynamic mechanism high quality development Yunnan Province

The Impact of High-standard Free Trade Areas on the Diversification of China's Export Products: Expanding Market or Intensifying Competition?

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China & World Economy 2024年第4期32卷 33-67页

作者： Zhaobin Fan Ruimin Bian Hui Li International Business school Jinan UniversityChina school of management Jinan UniversityChina school of Mathematics University of BirminghamUK

In the context of China's efforts to establish a global network of free trade areas and diversify its export products, this study explores the impact of trade agreement depth on China's export diversification. Building upon a trade model with multiproduct firms, we discover that the effect of trade agreement depth on export diversification is multifaceted, depending on the relative magnitude of the “market expansion effect” and the “competition intensification effect.” Through empirical analysis of China's exports to 132 countries (or regions) from 2000 to 2015, we find that the deepening of trade agreements affected China's export diversification negatively. This negative correlation was predominantly due to the similarity in comparative advantages between China and its trade partners, leading to the “competition intensification effect” overshadowing the “market expansion effect.” We also note that “natural” agreements, when deepened, were more likely to affect China's export diversification adversely than their “non-natural” counterparts. Moreover, as export diversification increased, the marginal impact of deepening trade agreements exhibited an inverted U-shaped trajectory.

关键词： export product diversification export similarity high-standard free trad areas trade agreement depth

Exploring the Lagged Correlation Between Baidu Index and Influenza-Like Illness-China,2014-2019

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China CDC weekly 2024年第26期6卷 629-634页

作者： Xuan Han Jiao Yang Yan Luo Dazhu Huo Xuya Yu Xuancheng Hu Ling Xin Liuyang Yang Hualei Xin Ting Zhang Zhongjie Li Weizhong Yang school of Population Medicine and Public Health Chinese Academy of Medical Sciences(CAMS)&Peking Union Medical CollegeBeijingChina school of Health Policy and management Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijingChina Department of management science and information system Faculty of Management and EconomicsKunming University of Science and TechnologyKunming CityYunnan ProvinceChina

Introduction:This study investigated the lagged correlation between Baidu Index for influenza-related keywords and influenza-like illness percentage(ILI%)across regions in *** aim is to establish a scientific foundation for utilizing Baidu Index as an early warning tool for influenza-like illness ***:In this study,data on ILI%and Baidu Index were collected from 30 provincial-level administrative divisions(PLADs)spanning April 2014 to March *** Baidu Index was categorized into Overall Index,Ordinary Index,Prevention Index,Symptom Index,and Treatment Index based on search query *** lagged correlation between the Baidu Index and ILI%was examined through the cross-correlation function(CCF)***:Correlating the Baidu Overall Index of 30 PLADs with ILI%revealed CCF values ranging from 0.46 to 0.86,with a median lag of 0.5 *** analysis indicated that the Prevention Index and Symptom Index exhibited quicker responses to ILI%,with median lags of−9 and−0.5 days,respectively,compared to 0 and 3 days for the Ordinary and Treatment *** median lag days between the Baidu Index and the ILI%were earlier in the northern PLADs compared to the southern ***:The Prevention and Symptom Indexes show promising predictive capabilities for influenzalike illness epidemics.

关键词： utilizing illness Baidu

A Study on Idea Adoption Prediction Model Based on SMOTE-AdaBoost: Taking Salesforce Platform as an Example

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Journal of Systems Science and Information 2024年第4期12卷 476-490页

作者： Yunjiang XI Futao HUANG Lu HUANG Xiao LIAO Juan YU school of Business Administration South China University of Technology school of Internet Finance and Information Engineering Guangdong University of Finance school of Economics and management Fuzhou University

In the context of information overload, companies often struggle to effectively identify valuable ideas on their open innovation platforms. In this article, we propose an idea adoption strategy based on machine learning. We used data from a well-known open innovation platform, Salesforce, and extracted characteristic variables using the Information Adoption Model. Four classification models were then constructed based on AdaBoost, Random Forest, SVM and Logistic Regression models. Due to significant differences in the number of positive and negative samples in the OIP, we used the SMOTE method to address the problem of data imbalance. The results of the study showed that the ensemble learning models were more accurate in identifying valuable ideas than the individual machine learning models. When comparing the two ensemble learning models, AdaBoost outperformed Random Forest in predicting both positive and negative class samples. The SMOTE-AdaBoost model achieved a recall of 0.93, a precision of 0.92 and an impressive AUC of 0.98 in identifying adopted ideas, which could well identify valuable ideas and has implications for improving the efficiency and quality of idea adoption in OIP. The shortcoming of this work is that it only investigated a single platform. In the future, we will consider extending this method to different platforms and multiple classification problems.

关键词： open innovation platform AdaBoost information adoption ensemble learning

Characterizing structure of cross-disciplinary impact of global disciplines:A perspective of the Hierarchy of Science

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Journal of Data and Information Science 2024年第1期9卷 53-81页

作者： Ruolan Liu Jin Mao Gang Li Yujie Cao Center for Studies of Information Resources Wuhan UniversityWuhan 430072China school of Information management Wuhan UniversityWuhan 430072China school of Information management Central China Normal University 430072WuhanChina

Purpose:Interdisciplinary fields have become the driving force of modern science and a significant source of scientific ***,there is still a paucity of analysis about the essential characteristics of disciplines’cross-disciplinary ***/methodology/approach:In this study,we define cross-disciplinary impact on one discipline as its impact to other disciplines,and refer to a three-dimensional framework of variety-balance-disparity to characterize the structure of cross-disciplinary *** variety of cross-disciplinary impact of the discipline was defined as the proportion of the high cross-disciplinary impact publications,and the balance and disparity of cross-disciplinary impact were measured as *** demonstrate the cross-disciplinary impact of the disciplines in science,we chose Microsoft Academic Graph(MAG)as the data source,and investigated the relationship between disciplines’cross-disciplinary impact and their positions in the Hierarchy of Science(HOS).Findings:Analytical results show that there is a significant correlation between the ranking of cross-disciplinary impact and the HOS structure,and that the discipline exerts a greater cross-disciplinary impact on its neighboring *** bibliometric features that measure the hardness of a discipline,including the number of references,the number of cited disciplines,the citation distribution,and the Price index have a significant positive effect on the variety of cross-disciplinary *** number of references,the number of cited disciplines,and the citation distribution have significant positive and negative effects on balance and disparity,*** is concluded that the less hard the discipline,the greater the cross-disciplinary impact,the higher balance and the lower disparity of cross-disciplinary *** limitations:In the empirical analysis of HOS,we only included five broad *** study also has some biases caused by the data source and a

关键词： Interdisciplinary research cross-disciplinary Scientific impact Soft science Hard science Citation