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Network efficiency analysis of Chinese inter-bank market 被引量:1
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作者 李守伟 何建敏 庄亚明 《Journal of Southeast University(English Edition)》 EI CAS 2010年第3期494-497,共4页
The inter-bank market network models are constructed based on the inter-bank credit lending relationships, and the network efficiency characters of the Chinese inter-bank market are studied. Since it is impossible to ... The inter-bank market network models are constructed based on the inter-bank credit lending relationships, and the network efficiency characters of the Chinese inter-bank market are studied. Since it is impossible to obtain the specific credit data among banks, this paper estimates the inter-bank lending matrix based on the partial information of banks. Thus, directed network models of the Chinese inter-bank market are constructed by using the threshold method. The network efficiency measures and the effects of random attacks and selective attacks on the global efficiency of the inter-bank network are analyzed based on the network models of the inter-bank market. Empirical results suggest that the efficiency measures are sensitive to the threshold, and that the global efficiency is little affected by random attacks, while it is highly sensitive to selective attacks. Properties such as inter-bank market network efficiency would be useful for risk management and stability of the inter-bank market. 展开更多
关键词 inter-bank market network efficiency ATTACK
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ST-Trader:A Spatial-Temporal Deep Neural Network for Modeling Stock Market Movement 被引量:6
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作者 Xiurui Hou Kai Wang +1 位作者 Cheng Zhong Zhi Wei 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2021年第5期1015-1024,共10页
Stocks that are fundamentally connected with each other tend to move together.Considering such common trends is believed to benefit stock movement forecasting tasks.However,such signals are not trivial to model becaus... Stocks that are fundamentally connected with each other tend to move together.Considering such common trends is believed to benefit stock movement forecasting tasks.However,such signals are not trivial to model because the connections among stocks are not physically presented and need to be estimated from volatile data.Motivated by this observation,we propose a framework that incorporates the inter-connection of firms to forecast stock prices.To effectively utilize a large set of fundamental features,we further design a novel pipeline.First,we use variational autoencoder(VAE)to reduce the dimension of stock fundamental information and then cluster stocks into a graph structure(fundamentally clustering).Second,a hybrid model of graph convolutional network and long-short term memory network(GCN-LSTM)with an adjacency graph matrix(learnt from VAE)is proposed for graph-structured stock market forecasting.Experiments on minute-level U.S.stock market data demonstrate that our model effectively captures both spatial and temporal signals and achieves superior improvement over baseline methods.The proposed model is promising for other applications in which there is a possible but hidden spatial dependency to improve time-series prediction. 展开更多
关键词 Graph convolution network long-short term memory network stock market forecasting variational autoencoder(VAE)
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General election effect on the network topology of Pakistan’s stock market:network-based study of a political event 被引量:2
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作者 Bilal Ahmed Memon Hongxing Yao Rabia Tahir 《Financial Innovation》 2020年第1期42-55,共14页
To examine the interdependency and evolution of Pakistan’s stock market,we consider the cross-correlation coefficients of daily stock returns belonging to the blue chip Karachi stock exchange(KSE-100)index.Using the ... To examine the interdependency and evolution of Pakistan’s stock market,we consider the cross-correlation coefficients of daily stock returns belonging to the blue chip Karachi stock exchange(KSE-100)index.Using the minimum spanning tree network-based method,we extend the financial network literature by examining the topological properties of the network and generating six minimum spanning tree networks around three general elections in Pakistan.Our results reveal a star-like structure after the general elections of 2018 and before those in 2008,and a tree-like structure otherwise.We also highlight key nodes,the presence of different clusters,and compare the differences between the three elections.Additionally,the sectorial centrality measures reveal economic expansion in three industrial sectors—cement,oil and gas,and fertilizers.Moreover,a strong overall intermediary role of the fertilizer sector is observed.The results indicate a structural change in the stock market network due to general elections.Consequently,through this analysis,policy makers can focus on monitoring key nodes around general elections to estimate stock market stability,while local and international investors can form optimal diversification strategies. 展开更多
关键词 Minimum spanning tree Centrality measures General elections Emerging market Pakistan Stock market network
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Study of Enterprises Marketing Risk Early Warning System Based on BP Neural Network Model 被引量:2
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作者 ZHOU Mei-hua WANG Fu-dong ZHANG Hong-hong 《Journal of China University of Mining and Technology》 EI 2006年第3期371-375,共5页
For effectively early warning the marketing risk caused along with the varied environment, a BP neural network method was introduced on the basis of analyzing the shortcomings of the risk early warning method, and com... For effectively early warning the marketing risk caused along with the varied environment, a BP neural network method was introduced on the basis of analyzing the shortcomings of the risk early warning method, and combined with the practical conditions of dairy enterprises, the index system caused by the marketing risk was also studied. The'principal component method was used for screening the indexes, the grades and critical values of the marketing risk were determined. Through the configuration of BP network, node processing and error analysis, the early warning resuits of the marketing risk were obtained. The results indicate that BP neural network method can be effectively applied through the function approach in the marketing early warning with incomplete information and complex varied conditions. 展开更多
关键词 BP neural network marketing risk Early warning Authentic proof
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Indian stock market prediction using artificial neural networks on tick data 被引量:2
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作者 Dharmaraja Selvamuthu Vineet Kumar Abhishek Mishra 《Financial Innovation》 2019年第1期267-278,共12页
Introduction:Nowadays,the most significant challenges in the stock market is to predict the stock prices.The stock price data represents a financial time series data which becomes more difficult to predict due to its ... Introduction:Nowadays,the most significant challenges in the stock market is to predict the stock prices.The stock price data represents a financial time series data which becomes more difficult to predict due to its characteristics and dynamic nature.Case description:Support Vector Machines(SVM)and Artificial Neural Networks(ANN)are widely used for prediction of stock prices and its movements.Every algorithm has its way of learning patterns and then predicting.Artificial Neural Network(ANN)is a popular method which also incorporate technical analysis for making predictions in financial markets.Discussion and evaluation:Most common techniques used in the forecasting of financial time series are Support Vector Machine(SVM),Support Vector Regression(SVR)and Back Propagation Neural Network(BPNN).In this article,we use neural networks based on three different learning algorithms,i.e.,Levenberg-Marquardt,Scaled Conjugate Gradient and Bayesian Regularization for stock market prediction based on tick data as well as 15-min data of an Indian company and their results compared.Conclusion:All three algorithms provide an accuracy of 99.9%using tick data.The accuracy over 15-min dataset drops to 96.2%,97.0%and 98.9%for LM,SCG and Bayesian Regularization respectively which is significantly poor in comparison with that of results obtained using tick data. 展开更多
关键词 Neural networks Indian Stock market Prediction LEVENBERG-MARQUARDT Scale Conjugate Gradient Bayesian Regularization Tick by tick data
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Analysis on the Transformation of Marketing Strategy and the Countermeasures under the Network Economic Times 被引量:1
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作者 Yan Zhang 《International Journal of Technology Management》 2016年第9期16-18,共3页
In this paper, we theoretically analyze the transformation of marketing strategy and the countermeasures under the network economic times. Network marketing is based on the network technology, including the whole proc... In this paper, we theoretically analyze the transformation of marketing strategy and the countermeasures under the network economic times. Network marketing is based on the network technology, including the whole process of marketing activities as a new form of marketing. In this paper, we analyze the issue from the listed perspectives. (1) Ultra space-and-time. The traditional marketing has very strong boundedness to the region, and this boundedness displays, the specifi c transaction can only be closed in the specific region, if the enterprise wants to expand the market share, only then establishes the retailing organization. (2) Interactivity. Network as a media, with the one-on-one interaction, this feature allows companies to basic communicate with consumers, and strengthen consumer participation, to determine the product form, function and the price. (3) The symmetry of information. Consumers can fi nd all kinds of that related products on the Internet information, there are plenty of time to judge the various products and prices. Companies will also be released in a timely manner on the Internet the company’s latest product information. Under this basis, we propose the new idea on the network marketing development direction that will help to build up the more efficient marketing system. 展开更多
关键词 marketing Strategy TRANSFORMATION network Economic Countermeasures.
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Hot Events Detection of Stock Market Based on Time Series Data of Stock and Text Data of Network Public Opinion
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作者 Beibei Cao 《Journal of Data Analysis and Information Processing》 2019年第4期174-189,共16页
With the highly integration of the Internet world and the real world, Internet information not only provides real-time and effective data for financial investors, but also helps them understand market dynamics, and en... With the highly integration of the Internet world and the real world, Internet information not only provides real-time and effective data for financial investors, but also helps them understand market dynamics, and enables investors to quickly identify relevant financial events that may lead to stock market volatility. However, in the research of event detection in the financial field, many studies are focused on micro-blog, news and other network text information. Few scholars have studied the characteristics of financial time series data. Considering that in the financial field, the occurrence of an event often affects both the online public opinion space and the real transaction space, so this paper proposes a multi-source heterogeneous information detection method based on stock transaction time series data and online public opinion text data to detect hot events in the stock market. This method uses outlier detection algorithm to extract the time of hot events in stock market based on multi-member fusion. And according to the weight calculation formula of the feature item proposed in this paper, this method calculates the keyword weight of network public opinion information to obtain the core content of hot events in the stock market. Finally, accurate detection of stock market hot events is achieved. 展开更多
关键词 Relationship network Public OPINION STOCK TRADING Behavior STOCK market HOT EVENTS
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Agricultural Traceable and Marketing System Based on iOS-Platform and Wireless Sensor Network
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作者 Haiyuan Sun Jianping Zhang +1 位作者 Guiling Sun Yangyang Li 《Journal of Computer and Communications》 2017年第6期45-56,共12页
With the rapid development of Things of Internet and its related technologies such as Wireless Sensor Network and remote access system development, its application on agricultural and farming domain has become a new r... With the rapid development of Things of Internet and its related technologies such as Wireless Sensor Network and remote access system development, its application on agricultural and farming domain has become a new research direction. This paper discusses a practical and efficient system by applying mobile software development technologies and ZigBee communication network. To achieve a compact and flexible iOS-based client, this study takes advantage of Model-View-ViewModel pattern as well as Client/Server style. Several encryption technologies such as Message Digest algorithm and Rivest Shamir Adleman algorithm are combined to ensure information security. Compared to the common portable marketing system, the proposed system also provides accurate growth information which is collected by wireless sensor network, and proposes a more flexible design pattern for mobile client hence obtaining a better performance on iOS devices. 展开更多
关键词 iOS CLIENT Online AGRICULTURAL marketING QR Code MVVM Pattern Wireless Sensor network
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Marketing as Innovation Strategy in Non Profit Sector in China: The Network of Influence "Guanxi"
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作者 Antonia Sajardo Moreno Marta Gil Ibafiez Rafael Curras Perez 《Chinese Business Review》 2016年第5期224-238,共15页
In a globalized world, not only the business market is overlapped but also marketing models take shape within economic systems. While there has been a proliferation in the implementation of marketing in the private se... In a globalized world, not only the business market is overlapped but also marketing models take shape within economic systems. While there has been a proliferation in the implementation of marketing in the private sector, this paper provides a useful entry point for the understanding role of marketing within the nonprofit sector focused on China, the second worldwide economic power. A number of senior managers and directors from different Non-Governmental Organizations (NGOs) were interviewed of what they understood marketing to be and how they considered and implemented marketing within organizational strategy. The findings showed that while marketing was identified as an interesting and influential concept, Chinese nonprofit managers generally had a limited understanding of a marketing theory. The article further discusses reasons behind the dynamic based on personalized networks of influence used and the potential implications for nonprofit entities in China, a sector that plays a very noteworthy role in transformative economies. 展开更多
关键词 nonprofit organizations SUSTAINABILITY marketing mix China competitive environment networks ofinfluence GUANXI
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The Network Marketing of Fresh Agricultural Products in China
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作者 YANG Xue 《Asian Agricultural Research》 2011年第4期125-127,131,共4页
The paper introduced the connotation of network marketing of fresh agricultural products and analyzed the fundaments of launching the C2C marketing of fresh agricultural products in China.The fundaments mainly cover t... The paper introduced the connotation of network marketing of fresh agricultural products and analyzed the fundaments of launching the C2C marketing of fresh agricultural products in China.The fundaments mainly cover the development of e-commerce,the transformation of consumption concept,the change of life style and the features of Chinese agricultural production.The developmental status of the C2C marketing of Chinese fresh vegetables and fresh fruits is introduced and the plights,including imperfect rural network infrastructure,inadequate talents specialized in network marketing of fresh agricultural products,uneven quality of agricultural products,immature logistics system,uncertainty existed in faced by the C2C marketing of fresh agricultural products and imperfect governmental protection system,are pointed out.In the end,the developmental trend of Chinese network marketing of fresh agricultural products on the basis of C2C mode is described. 展开更多
关键词 C2C Fresh agricultural products network marketing China
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Social Network Impacts on Stock Market: An Experimental View
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作者 Xiao chao Ding Zheng Qin 《Computer Technology and Application》 2011年第3期205-212,共8页
In this paper, the authors present a method to construct a simulation experiment system which used to prove how social network affects the stock market. The authors construct a model considered of three main stock mar... In this paper, the authors present a method to construct a simulation experiment system which used to prove how social network affects the stock market. The authors construct a model considered of three main stock market effect factors: cognitive factors, social factors and economic factors. In the simulation system, free-scale social network is generated for information relations among investors in stock market. The authors simulate the organization information propaganda processes and generate stock related news. The generated news contains economy factors and sudden events. Stockholders cooperate with the related stockholders in their social network, and make stock exchange decision based on this news and their cognitive understanding of this news. Simulation results shows that the social network news propaganda effect stock prices. If social network in stock market have circles, the news affection will be amplified. 展开更多
关键词 SIMULATION stock market social network multi-agent.
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How Do Companies Achieve Their Marketing Goals With Social Networks?
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作者 Marcello Sansone Andrea Moretta Tartaglione Roberto Bruni 《Chinese Business Review》 2012年第11期970-980,共11页
This work examines the role of social network sites as a tool used by companies to achieve marketing goals. As known from the main business literature, the social network represents one of the most important instrumen... This work examines the role of social network sites as a tool used by companies to achieve marketing goals. As known from the main business literature, the social network represents one of the most important instrument to improve the company fame by strengthening the affection of customers to the brand. For this reason, some companies use these tools to build relations and contacts with customers all over the world. The population of social networks users is made, for the most parts, of youngsters (people belonging to the 13-30 years old cluster). In the last years, with the social web networking, social communication lost the exclusive social meaning and social network sites become strategic instruments for the construction of powerful relations that connect people with people and people with firms. This work is aimed at clarifying the genesis and the evolution of the relations between companies and potential customers, focusing on the tools used by the firm to achieve their marketing goals through social network sites (SNSs). First of all, the work proposes the recognition of some studies about the origin of web social network and their links with marketing strategies. Secondly, it considers marketing goals achieved from any companies through social networking with a particular focus on advertising through web social networking. 展开更多
关键词 Social network sites (SNSs) marketING youngers brand value relationship with customers
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Prediction of the Bombay Stock Exchange (BSE) Market Returns Using Artificial Neural Network and Genetic Algorithm
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作者 Yusuf Perwej Asif Perwej 《Journal of Intelligent Learning Systems and Applications》 2012年第2期108-119,共12页
Stock Market is the market for security where organized issuance and trading of Stocks take place either through exchange or over the counter in electronic or physical form. It plays an important role in canalizing ca... Stock Market is the market for security where organized issuance and trading of Stocks take place either through exchange or over the counter in electronic or physical form. It plays an important role in canalizing capital from the investors to the business houses, which consequently leads to the availability of funds for business expansion. In this paper, we investigate to predict the daily excess returns of Bombay Stock Exchange (BSE) indices over the respective Treasury bill rate returns. Initially, we prove that the excess return time series do not fluctuate randomly. We are applying the prediction models of Autoregressive feed forward Artificial Neural Networks (ANN) to predict the excess return time series using lagged value. For the Artificial Neural Networks model using a Genetic Algorithm is constructed to choose the optimal topology. This paper examines the feasibility of the prediction task and provides evidence that the markets are not fluctuating randomly and finally, to apply the most suitable prediction model and measure their efficiency. 展开更多
关键词 STOCK market Genetic Algorithm Bombay STOCK Exchange (BSE) Artificial Neural network (ANN) PREDICTION Forecasting Data AUTOREGRESSIVE (AR)
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Application of Data mining in Enterprise Network Marketing
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作者 DanDan Xiao Feng Ye 《International English Education Research》 2015年第1期43-45,共3页
With the rapid development of the Internet, market has been increasingly competitive and competition means are various. Internet Marketing has become a new way for enterprises to grow. Data mining of enterprise networ... With the rapid development of the Internet, market has been increasingly competitive and competition means are various. Internet Marketing has become a new way for enterprises to grow. Data mining of enterprise network marketing has become the new darling of many business managers.The marketing data will become a key to develop a corporate marketing strategy as an important basis tool. However, many companies now make mistakes in marketing data. They can't fully exploit the marketing data.lt can affect the development of enterprise network marketing strategy. This paper is based on the concept of marketing data and outline the importance of data mining for network marketing, then analyze a significant impact on the entemrise network marketin~ strate^w made by marketinR data mininR. 展开更多
关键词 Data mining network marketing marketing strategy APPLICATION
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Collective Background Extraction for Station Market Area by Using Location Based Social Network
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作者 Kousuke Kikuchi Tatsuto Kihara +4 位作者 Atsushi Enta Hideaki Takayanagi Takeshi Kimura Kazuto Hayashida Hitoshi Watanabe 《Journal of Civil Engineering and Architecture》 2013年第3期282-289,共8页
Half centuries of follow-up survey has enabled the architects and urban planners to design rationally by the aid of planning Nonetheless, limitation has occurred at planning because city has been changing its utility ... Half centuries of follow-up survey has enabled the architects and urban planners to design rationally by the aid of planning Nonetheless, limitation has occurred at planning because city has been changing its utility in accordance with its users' demand. In this paper, the authors proposed a method to analyze trait of users in market areas near stations by analyzing location based social network. After the datum collection from geotagged tweets, these GPS (global positioning system) datum were plotted to map attained from yahoo open location platform. Then the morphological analysis and terminology extraction system extracted the keywords and their scores. After calculating the distance from stations and users' GPS coordination, the authors extracted the array of keywords and corresponding scores in some station market area. Lastly, ratios of all users' scores and city's scores were calculated to examine the locality. Full combination of data collection, natural language processing and visualization enabled the authors to envisage distribution of collective background in city. 展开更多
关键词 Location based social networks natural language processing market analysis VISUALIZATION big data.
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Question of the status quo and countermeasure exit in the China Business Network Marketing
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作者 Yuxin Luo 《International Journal of Technology Management》 2013年第12期62-64,共3页
In the application process of the Internet and network marketing, many Chinese companies are actively engaged in practice, and after an exploratory period of time, companies accumulated some experience in a representa... In the application process of the Internet and network marketing, many Chinese companies are actively engaged in practice, and after an exploratory period of time, companies accumulated some experience in a representative model. Such as: Chinese companies have a combination with traditional marketing and purchase advanced software model and then implemented through secondary development, they also change management ideas and systems, etc. These experiences and models can provide an effective and common reference for enterprise' s development of China' s e-commerce. 展开更多
关键词 COUNTERMEASURE BUSINESS network marketing.
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ZTE Holds 1/4 Global CDMA Network Market Share
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作者 Frost&Sullivan 《ZTE Communications》 2009年第3期2-2,共1页
ZTE Corporation,a leading global provider of telecommunications equipment and network solutions,announced on July 30,2009 that it has been ranked as the second largest global CDMA network supplier with 25%
关键词 ZTE Holds 1/4 Global CDMA network market Share CDMA
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Research on the application of the data mining technology in the electronic commerce network marketing
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作者 Shi Yuanmin 《International English Education Research》 2014年第2期50-52,共3页
With the rapid development of China's reform and opening up and the socialist market economy, the development of Internet technology has promoted the prosperity of e-commerce, and further promoted the rapid developme... With the rapid development of China's reform and opening up and the socialist market economy, the development of Internet technology has promoted the prosperity of e-commerce, and further promoted the rapid development of China's economy. Data mining technology is an advanced science and technology, which has important implications for the e-commerce data processing. Through the summary of the data mining technology, this article puts forward the application of data mining technology in electronic commerce, in order to better promote the development of electronic commerce. 展开更多
关键词 Electronic commerce network marketing data mining APPLICATION
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Network Forum Affects the Stock Market: An Empirical Analysis Based on Multivariate GARCH-BEKK Model
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作者 Hongbo Yi Juanjuan Lai +1 位作者 Dayong Dong Guoen Xia 《Sociology Study》 2015年第2期137-145,共9页
Based on the text of posing on the network forum, the authors establish a set of keyword dictionary to measure the long and short investors' sentiment effectively, then they investigate the mutual relations between i... Based on the text of posing on the network forum, the authors establish a set of keyword dictionary to measure the long and short investors' sentiment effectively, then they investigate the mutual relations between investor sentiment and the trading market through a Multivariable BEKK-GARCH model of abnormal long and short investor sentiment, returns, and abnormal trading volume. The results show that abnormal sentiment of long investor has a negative impact on the returns and a positive impact on the abnormal trading volume; while abnormal sentiment of short investor has no impact on the return and a negative impact on the abnormal trading volume. Otherwise, there is the negative volatility effect from abnormal sentiment of long investor to returns and abnormal trading volume, the positive volatility effects from abnormal sentiment of short investor to returns, and no volatility effects from abnormal sentiment of short investor to abnormal trading volume. In addition, network forum investor sentiment is a factor affecting the trading market. The analysis of forum information plays a certain role in presenting market risk and improving efficiency in making investment decision. 展开更多
关键词 network forum investor sentiment sentiment volatility trading market
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