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This paper presents a machine learning method for event-driven stock prediction, using L1 regularized Logistic regression model. It studies the stock price movement after listed companies make announcements. The model uses specific events extracted from these announcements and combine with financial indicators of listed companies, macro indicators, and technical indicators as dependent variables....
There exists a few branches which are key to the development of a cascading failure, so it is of great significance to find them. In order to identify these branches accurately, branch combinations should be concerned. This paper first proposes a reformulation of cascading failure process based on Markov decision process, and then Q-learning algorithm for model solution is introduced to find out the...
CIMS is short for the computer information management system, which has been widely applied to the field of modern teaching since 2004s. Teaching industry is the area of strong planning. Especially in the depressed study environment and the fierce competition among the education departments, how to use modern tools, allocate the multimedia technology and seek for benefit is one of the measures which...
In this paper, predator-prey model of Holling III-function response with nonlinear density dependent was discussed by the differential equation qualitative theory, the properties of equilibrium was analysed and the sufficient condition of existence and uniqueness of the limit cycle was obtained.
Traditionally, studies of open innovation (OI) focused on high-tech industry. Though consumer goods industry is increasingly adopting online open innovation (OOI), managers are unclear about the trends of OOI. This study proposes a new classification of OOI in consumer goods industry: firm-led OOI and customer-led OOI, and identify the evolution trends of customer-led OOI. The finding is based on...
Debt financing is one of the principle factors in capital structure of a firm, which is important to ensure operating capital and improve value of the firm. By now, measuring methods of debt financing have focused on computation of deviation between the real earnings and expected profits. It has been known that the key to avoid “two-side” of debt financing is to utilize low cost of debt capital effectively...
Estate industry plays many efforts on economics' development. For investigating impact factors about estate companies' operating performance and finding the breakthrough to improve operational capacity, this paper constructed the evaluation model based on principal component analysis and adopted 40 estate listed companies as example to verify the model. The results indicated that the model, proposed...
The research of corporate governance regards the separation of ownership and control as a basic proposition. Accordingly, the core issue of corporate governance becomes the conflict of interests between stakeholders. Shareholding structure is an important factor in corporate governance structure, and the transformation of different shareholding structures constantly harms or protects the interests...
Bidding is a critical activity for most of contractors in face of intense competition. Thus, it is necessary to develop a practical bidding decision method. This paper presents a bidding decision model based on the analytical hierarchy process (AHP) method. As an illustration, a practical example of a construction company is cited, which demonstrates the application of this method and shows how this...
With the e-commerce market competition becoming more and more furious, it has become one of the focuses of companies that how to avoid customer churn and carry out customer retention. This paper applies many techniques of data mining to the research of customer churn, such as clustering analysis, decision tree, neural network, etc, establishes an e-commerce customer churn model and analyzes the factors...
Economy globalization and the development of information technology have intensified competition among modern companies, while customer relationship has became an important resource for building up core competence. Customer Relationship Management(CRM), as a new idea, technology and strategy, provides an all-around guidance and support for business to build, keep and manage customer relationship....
The goal of information extraction (IE) is to find the specific information from documents composed by natural language for a particular scenario. With the development of IE methodologies, a lot of information extraction tools have been proposed and are playing an important role in information processing. However, the efficiency of these tools may not be satisfactory to users. One of those important...
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