The objective of this article is to reveal the evolution of the investment portfolio establishment approach. The evolution from the diversification effect, whose primary goal is to minimize risk, to the use of the Markowitz model to find the portfolio with the highest return per risk, to finally taking...

In Gansu Province, China, the power supply is more than demand, and the imbalance between power supply and demand needs to be solved urgently. As an important means of DSM, demand response can effectively alleviate the peak valley difference and reduce the power supply cost. This paper first summarized...

In today's society, the development of Internet big data technology has brought new opportunities and development direction to enterprises. With the improvement of women social status, global women continue to break through the “career development ceiling”, break the stereotype of “gender discrimination”,...

This paper studies the price volatilities of rice regarding the world market leaders as Thailand, India, and Vietnam provided by the time-series data of the monthly rice export prices between 1998 – 2021. The study found that the most suitable model is the TGARCH model considered by the lowest AIC criteria....

The size of corporate financial leverage is one of the important factors affecting corporate financial performance. The proportion of debt capital in corporate assets will bring additional benefits and risks to enterprises through the financial leverage effect, which will affect the value of the company,...

This paper aims to compare the stock prices trend for industries affected by the pandemic in the post-Covid era. Specifically, the delivery and cardboard box industry are chosen as examples to project future growth in four different Machine Learning Methods. Furthermore, an optimized asset portfolio...

At present, the world is greeting a “service economy era,” and China has given the emerging service industry an important strategic position and development significance. This paper selects the development of the modern logistics industry as the representative of the current emerging service industry,...

In the field of social science, research on happiness combines multiple subjects like philosophy, psychology, sociology and economics, and plays an essential role in national health. In this report, with the publicly available questionnaire results, we select multiple sets of variables, including individual...

This paper analyzes the main factors causing the acute injury in yoga practice using the least squares SVM. Special statistics were made for parts and categories prone to damage in yoga practice. Athlete injury factor of least squares supporting vector machine was used to provide special statistics on...

Purpose: Game theory is mainly divided into cooperative games and non-cooperative games. Most sports game is a non-cooperative game, but football games do not seem to be the case. In order to explore the relationship between football handicap and game rules, a cooperative game model of the interaction...

The futures market price of agricultural products is affected by many factors. We introduce the Baidu search index as a proxy variable for investor attention and examine the link between corn starch futures and the Baidu index. The Granger causality test is used to observe the direction of causality,...

The research paper focused on sentiment analysis powered by natural language processing and its use in trading strategy. Previous sentiment analysis based trading solutions are usually proprietary and produce market reports on a daily or weekly basis. We, therefore, aimed to address the lack of transparency...

As we all know, people in almost all countries are inseparable from alcohol. Alcohol has multiple functions. Different alcohols have different functions and different manufacturing methods. This article will study the drinking preferences and habits of different groups of people in different regions....

With the development of deep learning, different kinds of neural network models are applied to the analysis and prediction of time series data. In the field of finance, deep learning models are widely used to forecast the stock market, which is an integration of technical data that can directly provide...

Personalized news recommendations are a crucial technology for assisting users in discovering news content of their interest and reducing information overload. At the same time, personalized news recommendations allow for effective statistics on news data and will provide assistance in the application...

A demand index system is established to explore the practice model of social innovation in community creation, and to build the corresponding design strategy. The affinity diagram is used to summarize user demand indicators, and each weight value is calculated with the help of hierarchical analysis and...

Reinforcement learning has achieved superhuman performance on many sequential decision-making problems, but only very few works are done on applying reinforcement learning to market trading. In this study, we take the stock trading problem as an Markov decision process, and applied PPO algorithm to solve...

By extending the investment interface, power grid companies increase investment in business expansion projects, which not only effectively improves market share and customer satisfaction, but also supports economic and social development. However, after the extension of the investment interface, the...

TikTok is the most downloaded short video platform in the world which brings a significant negative impact on adolescents. Furthermore, there is a substantial similarity between the spread of TikTok’s influence and the spread of the epidemic. Based on this fact, we can model the spread of the TikTok’s...

Electronic Sports (E-sports) is a competition of intelligence and physical strength between people using electronic equipment as sports equipment. At present, e-sports competitions have become an official sports event, and are no longer synonymous with unprofessional work. E-sports will be a business...

Objective from the perspective of doctors’ perception and institutional development, the current situation and influencing factors of the development of Traditional Chinese Medicine service ability in Jilin Province were analyzed to provide a reference for the targeted development of primary health care...

The product recommendation system is a system that analyzes user preferences, searches for a large number of product information in the e-mall, and recommends products that may be of interest to users, providing an intelligent shopping experience for online shopping users. It can help users more accurately...

With the rapid growth of the Internet economy, online transaction fraud occurs frequently and the victims are all over the country, which brings great difficulties to the public security organs in investigating and handling cases. This paper analyzes the history files generated by computer in the process...

In the century of the rise of the travel industry, many related industries are also on the rise, and the insurance industry is one of them. The analysis of tourists or customers to predict or determine whether they will buy insurance is the general context of this paper. Predictions can be found everywhere...

With the use of the visual analysis tool CiteSpace software, the paper makes a statistical analysis of the literature related to “conceptual metaphor translation” from the dimensions of the journal volume, high-frequency keywords and emerging theme words. It presents the current situation and trend of...

This paper mainly focuses on the investment value of stocks in the SSE Star Market using factor analysis and cluster analysis with Python language. The SSE Star Market is an important platform in Shanghai and even China since it gathers resources and capitals of innovation and technology to help and...

The core concept of socialism with Chinese characteristics for a new era is to promote high-quality social development and build a sustainable ecological civilization. In recent years, China and even the rest of the world have begun to focus on the development of green finance, which is also one of the...

The innovation ability of small and medium-sized manufacturing enterprises is of great significance to the development of the real economy with the rapid development of the digital economy. This paper analyzes the data of the 2020 annual report of manufacturing enterprises listed on the New OTC Market,...

Along with the rapid development of the Internet in China, the Internet has become an important and indispensable component of our modern life. At the same time, with the rapid and vigorous economic and social development after the reform and opening up, we have to admit that it has also brought some...

As an important support for optimizing the energy structure, gas-fired power generation units play an important role in achieving the “carbon neutralization and carbon peak” goal and building a new power system. In view of the survival status of gas-fired power generation units, this paper analyzes the...

High energy-consuming industries are an important part of China's industrial structure, and are of great significance for China to promote “steady growth” and “carbon peaking and carbon neutrality”. Energy is a key raw material in the production process of energy-intensive industries. Therefore,...

As far as the current social situation is concerned, more and more people choose credit cards as a way to pay for their daily expenses. When it comes to credit cards, we have to mention the credit default risk associated with them. We know that when a person's credit default risk is too high, his...

In addition to the characteristics of general capital-intensive investment projects, power grid capital investment also has some of its own characteristics, such as long-term investment, economic dependence, regional limitations, and constraints that include resources, environment, policies and other...

Research on the relationship between intelligent upgrading and the performance of manufacturing enterprises has been widely concerned by academia; however, the relationship between the two and the mechanism of influence has not yet reached a consistent conclusion. Digital transformation has a huge impact...

-To measure the synergy degree of the four chains, namely the industrial chain, innovation chain, service chain, and capital chain in the development of China’s venous industry, this research establishes an evaluation system for the synergy degree and carried out empirical research on two typical venous...

With the rapid development of the social economy, people’s consumption level is increasing, and more attention is paid to health security. Especially in the context of the new coronavirus epidemic sweeping the world, people’s demand for a healthy environment is more urgent. The environment is people’s...

The migration work of hydropower projects in the old revolutionary area of the Zuojiang and Youjiang River has certain particularities. The old revolutionary area of the Zuojiang and Youjiang River River is located in the southwest border of China at the junction of Yunnan, Guizhou and Guangxi, which...

Since the reform and opening up, foreign trade has played a significant role in China's economic growth. Based on the relevant data of China from 1995 to 2019, this paper systematically analyses the dynamic relationship between foreign trade and technological innovation by using the vector auto...

Asset pricing is an important part of modern financial theory. How to reveal its pricing law is an important research topic in the current financial field. Starting from asset pricing, expounds the application and development of machine learning technology in asset pricing, and classify it as a machine...

With the social progress, the market competition in the power industry is becoming more and more fierce. In order to improve their economic benefits and competitiveness, power enterprises implement power precision marketing from the aspects of power marketing management. In the context of the island...

With the continuous reform of electricity market, the competition in the retail market is becoming more and more intense. How to select high quality customers will become an important issue for the development of electricity retailers. At present, the value assessment of customers by electricity retailers...

The original purpose of Google's PageRank algorithm is to assess the significance of web pages based on their link structure. However, based on the principle of PageRank, it could be used to any network or graph in any domain, also over time it has been developed for social network analysis, link...

The issue of carbon emissions was a major problem faced by the whole world. In the process of moving along the path of low carbonization in various fields, fiscal and taxation policy was an important tool for the government to guide and support it. This paper used provincial panel data (excluding Tibet)...

Stock price prediction is a hot topic in the financial industry, and accurate stock price prediction is an important method to prevent risk and protect market stability. To this end, this paper constructs time series models and deep learning model, respectively, and compares the prediction results of...

COVID-19 has a serious impact on China’s economy and China’s financial system. In order to clarify the impact of COVID-19 on China’s financial risk, this paper first analyzes the impact mechanism of COVID-19 on China’s financial system, and then combines statistical analysis of key indicator data to...

With the development of computer network technology, it has brought the reform and development of college education to a new height. This article analyzes the importance of practice teaching in China’s tourism management major, and the establishment of the tourism management professional curriculum system,...

Integrated energy systems plays an important role for improving Social Energy Efficiency and promoting the large-scale consumption of renewable energy and the Gradient utilization of energy. Integrated energy systems breaks through the technical, market and management barriers of traditional energy systems...

Building a modern industrial system is an important focus point for promoting high-quality development. The logistics industry is an important part of the modern industrial system, and the improvement of logistics efficiency is the key to the high-quality development of the modern industrial system....

From the perspective of comprehensively improving the quality of intelligent services in the pharmaceutical industry, the service quality evaluation system of pharmaceutical enterprises is constructed in order to improve customer experience. The intelligent service quality evaluation model applicable...

This paper measures the risk of the carbon trading market, and studies the risk spillover effect between markets, which provides a theoretical reference for the policymaking of the carbon market. This paper mainly studies the risk spillover effect between Risk spillover effects between China’s carbon...

Starting from 1990, China’s population development has been at an unprecedented turning point. Based on the data from the seventh national census in 2020, predictions concerning the country’s population structure indicate that the population aging rate is faster than expected. China will soon enter the...

The basic idea of demand response originates from comprehensive resource planning, which equates the controllable energy demand on the user side with the supply side resources, and integrates it into the category of resource planning and utilization. It enhances the energy utilization efficiency, improves...

With the development of information technology, Internet technology and Internet of Things technology, networked collaborative manufacturing has become the future development direction of manufacturing industry. However, there are still a series of problems in the development of the new model of networked...

In order to objectively evaluate the indicators affecting cultivated land productivity, under the background of big data, taking Jiaozuo City as an example, data mining is used to analyze the cultivated land productivity indicators, and finally the cultivated land in Jiaozuo City is divided into three...

This paper empirically investigates the relationship between the real exchange rate of the JPY and FDI absorption in Japan from 1995 to 2020 using cointegration tests and Granger causality tests. On the one hand, when the exchange rate changes, there is a time lag in the investment decision of enterprises,...

Based on China’s provincial panel data from 2011–2019, this paper constructs an indicator system of the digital economy and measures the digital economy and agricultural green total factor productivity using the entropy value method and the SBM super-efficiency model with non-expected output, to explore...

The construction of UHV AC projects has significant advantages in improving the clean energy consumption capacity and optimizing the large-scale allocation of energy resources. At present, the carbon emission reduction benefits of UHV AC projects have not been quantitatively studied, and equipment transportation...

The implied volatility of options is a key factor in judging the price trend of options and analyzing their trade, so it is very important to use a reasonable method to predict it accurately. Since the traditional B-S-M formula calculation method cannot reflect the actual changes of Tick-level granularity...

Choosing an appropriate logistics operation mode will help enterprises achieve the pursuit of low cost and high profit of logistics. In this paper, the logistics operation mode used by e-commerce enterprises is divided into three forms: completely self-supporting, completely outsourcing, and logistics...

In order to ensure the sustainable and stable development of cities in Liaoning Province, aiming at the problem of urban shrinkage in Liaoning Province, this paper uses entropy weight method (EWM) and analytic hierarchy process (AHP) to preliminarily determine and moderately correct the weight of each...

Rising sea temperatures and migration of fish under the influence of global warming have affected the returns on investment for small-scale fishing companies in Scotland. Rational investment decisions for small-scale fisheries companies over the next 50 years are an effective means of avoiding losses....

This paper analyzes the influencing factors of tax revenue from an empirical point of view, adopts the principal component analysis method to reduce the dimension and simplifies the regression model, and on this basis introduces the BP neural network method to predict the tax revenue. The empirical research...

The development of Fintech is both an opportunity and a challenge for traditional commercial banks. It systematically analyzes the theoretical basis of the impact of Fintech on the performance of commercial banks. Based on the sample data of 37 listed commercial banks from 2011 to 2020, it uses the text...

A-grade logistics enterprises are the carriers of the regional economy, which are important for promoting the coordinated development of the regional economy. Based on the data of A-grade logistics enterprises in Hubei Province, this paper uses nuclear density analysis, hot spot analysis, and spatial...

As the basic industry and traditional industry of the national economy, agriculture plays an extremely important role in economic development, especially in today’s global food shortage and frequent natural disasters. The supporting position of agriculture is becoming more and more important. Agricultural...

Facing the problem of low rate of change of customer satisfaction evaluation methods, a customer satisfaction evaluation method based on fuzzy hierarchical analysis is designed. Optimising the customer relationship management structure, promoting the transformation of customers from willingness to behaviour,...

This paper uses DEA-BCC model to construct a system of input-output indicators to measure the input-output efficiency of China’s listed companies of solar-thermal power generation concept using panel data of 24 listed companies of solar-thermal power generation concept in China from 2017–2021 as research...

This paper constructs an evaluation index system from the dimensions of affluence and common degree, and uses entropy-TOPSIS method to measure the common affluence level of China’s provinces during 2016–2020. Based on Dagum Gini coefficient, Moran index and effect model, regional differences, spatio-temporal...

In this paper, the ARMA-GARCH model is constructed to estimate the heteroscedasticity, so as to eliminate the impact of non-systematic risk on the model. On this basis, the Granger causality test is carried out. Finally, this paper empirically studies the Granger causality correlation between 22 financial...

In view of the low-efficiency marketing problem caused by customer orientation ambiguity in many enterprises’ marketing strategies, this paper studies the calculation of customer value based on the existing customer behavior characteristics data, comprehensive utilization of hadoop data processing software,...

In recent years, with the continuous improvement of the economic level of China’s power grid, power grid enterprises have shown high enthusiasm for investment, which undoubtedly increases the investment benefits of enterprises, making the investment scale of power grid enterprises show a growing trend....

At present, scholars have put forward many theoretical and empirical studies that affect customer intention. Taking express delivery enterprises as an example, this paper collects 217 valid questionnaire data from customers, uses structural equation model and Bootstrap interval estimation and other statistical...

In recent years, with the deep integration of energy revolution and digital revolution, the power grid is accelerating its transformation and upgrading to Energy Internet with a higher level of intelligence and interaction, stronger resource allocation and value creation capabilities. The construction...

Objective To explore the status, hot spots and frontiers of new drug research in China through visual maps. Methods Using CNKI as the literature source and using CiteSpace software, the quantitative tool CiteSpace software was used to visually analyze the literature related Chinese to new drugs in China...

In the scenario of bank bond risk measurement, due to the scarcity of bond default sample data and feature information, the model after machine learning modeling is not enough to represent the past and predict the future, which affects the accurate measurement of bond default risk. The system uses Monte...

With rapid social and economic development, the living standard of residents is also rising. The disposable income per urban resident, which is one of the indicators of the living standard of the residents, is also attracting more and more attention. Therefore, it is of great significance to China's...

This paper focuses on the vital domains and developmental trends of new drug-related policy. A total of 98 policy texts from 2010–2021 were subjected to cluster analysis and strategic coordinate analysis. The results showed that the number of new drug policies is fluctuating upward, the coordination...

In the context of rural revitalization, the application of big data can accurately provide data support for industrial revitalization and agricultural development. Based on the statistical data of Zhaotong City from 2006 to 2020, this paper adopts shift-share analysis, industrial structures conversion...

During the epidemic, improving the service quality of terminal logistics is helpful to promote the benign development of the economic environment. Therefore, this paper firstly combined AHP analysis with TOPSIS method, and used Delphi method to invite 5 professionals to give weight scores to the indicators....

With the failure of the housing market, the scale of urban housing sandwich class grows rapidly. They are residents who cannot afford commercial housing in the city, but whose income exceeds the local security line. Based on the theory of adequate housing rights, this paper proposes a measurement method...

At present, China’s economy has gradually formed a new development pattern of “dual circulation economy”. The high-tech industry is responsible for improving the capacity of independent innovation and plays a key role in achieving high-quality economic development and promoting the new development pattern...

With the rapid development of the global economy and the continuous expansion of the investment scale in the financial market, more and more transaction data and market public opinion information are generated in the stock market under the background of big data, which makes it more difficult for investors...

This paper provides a detailed explanation of categories of risk preference and classification of the risk level. Also, the evidence of how the main variables react to risk preference. Our analysis is based on the 2018 CFPS family samples and personal panel. Adopting Stata analysis technology, and using...

For securities investors, the return and risk of investment are the two main aspects of their concern. However, in real life, the vast majority of investors are not professionally trained, which makes them confused about portfolio selection in the face of tens of thousands of investment targets in the...

The construction of national-level big data comprehensive pilot zones has profound implications for promoting the development of China’s big data industry and accelerating the upgrading of industrial structure to achieve higher quality economic development. However, the current study has not explored...

Being an important part of the national economy, the stock market has always performed an important role in economic development. Following the growth of the times and variations in the investment philosophy of people, an increasing number of people have become involved in the stock market and predicting...

This study investigates the effect of digital finance and ESG performance on total factor productivity. Using a large sample of Chinese listed firms over the period 2011–2020, we find that the deepening and improvement of digital finance can have a positive impact on the total factor productivity of...

As a large number of visual culture has entered people’s lives, the traditional drama such as Meishan Nuo Opera, which is restricted by the performance and viewing conditions, has been given an unprecedented impact. Meishan Nuo Opera as one of the national intangible cultural heritage, the urgent need...

As a new form of finance, the development of digital finance is closely related to the development of digital technology, Internet, cloud computing, artificial intelligence and other digital technologies. The rise and development of digital finance has had a profound impact on the traditional financial...

Economy is a powerful driving force for the progress and development of human society. The close relationship between consumption and economic development has been widely concerned by scholars in various fields. Today, we focus on high-quality economic development, and exploring the impact of energy...

As China’s economy enters a new stage of development, the financial dilemmas faced by small and medium-sized enterprises, which are a major component of the national economy, are attracting more and more attention. In this paper, while reviewing a large amount of literature, the causes and correlations...

“Big data” has become a century-old keyword and will comprehensively involve all aspects of economic and social life. Big data is a leap in data storage and processing capabilities in the Internet era. In the era of big data, logistics companies are listed as one of China's top ten emerging service...

Aiming at the problems that the existing network security protection system adopts traditional and passive defense, which cannot respond effectively to unknown attacks quickly and has poor defense capability, this paper designs and develops a LAN security defense system based on honeypot technology....

In view of the fact that the traditional risk evaluation model has the problem of repeated indexes when evaluating the risk of stock exchange market, this paper uses random forest and two-way LSTM model to evaluate and study the risk model of stock exchange market. Firstly, random forest method is used...

The stock market prediction has been a hot topic in the field of economics and finance. As a consequence of the complex and volatile nature of the stock market, it is challenging to accurately forecast the stock S&P 500 index. Currently, with the purpose of predicting stock market, intelligent algorithms...

It is an important mission of the Party to improve the poor and backward face of rural areas and reduce the number of poor people. At present, the “13th Five-Year Plan” has come to a successful conclusion, and the “14th Five-Year Plan” has been fully drawn up. My country has taken many measures to improve...

Smart tourism is the strategic direction of tour informatization development in China, and the dislocation of supply and demand is the basic problem to be solved in the early days of development. The paper constructs the model and evaluation system of smart tourism supply and demand system, expounds...

There are still many problems in the current comic style transfer method, such as the style of the generated image does not conform to people's aesthetics, the color is far from the original image, and so on. This paper proposes a new network architecture based on the idea of generative adversarial...

The over-reliance on financial statements published by listed companies as the main reference data can lead to great losses to capital market investors and hinder the orderly and healthy development of the capital market in the event of financial fraud by the company. In this context, the establishment...