［Purpose/Significance］In order to improve the efficiency of the construction of "Belt and Road" economic and management thematic database,thereby enhancing policy communication and economic cooperation among countries along "Belt and Road",as well as promoting the transformation of "Belt and Road" to a high-quality direction,this article discusses the standard system model and framework.［Method/Process］Guided by national standards,with reference to Hall three-dimension structure,EA and life cycle of information theory,the three-dimensional the standard system model and framework were established.［Result/Conclusion］The standard system model constructed is developed from three dimensions of scope of application,subject type and life cycle of data;the framework is established on the basis of the model,including three top-level designs,four main structures and seven standards.The standard system framework meets the needs of thematic database's hardware,resources,services and management,covering the entire life cycle of the data,having a certain pertinence in the field of economics and management and can provide a reference for the standardized management of the database.

［Purpose/Significance］From the perspective of system safety & security,this paper carries out the study on the theoretical model of intelligence-based safety & security situation awareness(ISSSA)in order to establish a universal theory of ISSSA,which can help to further enrich and develop the safety & security situation awareness theory.［Method/Process］Firstly,based on the perspective of system safety & security,this paper clarified the connotation of ISSSA.Secondly,this paper put forward the operation framework of ISSSA and the three-dimensional system of ISSSA modeling.On the basis above,this paper constructed the theoretical model of ISSSA from the perspective of system safety & security,and elaborates its connotation.［Result/Conclusion］From the perspective of system safety & security,ISSSA is safety & security situation awareness combined with safety & security intelligence,which is composed of four levels,namely safety & security awareness perception,safety & security situation comprehension,safety & security awareness projection and system safety & security response.ISSSA from the perspective of system safety & security can provide an effective paradigm for perceiving and predicting system safety & security situation,as well as preventing and resolving system safety & security risks.

［Purpose/Significance］Numerical information represented by papers and patents was an objective reflection of technology research activities and progress of science and technology,and fully mining the value of numerical information and finding data dynamic change has important practical significance and research value for mastering technology development rule and forecasting future evolution trend.［Method/Process］In view of the shortcomings of relevant researches on numerical knowledge element knowledge expression methods,the paper innovatively designed the "Object-Attribute-Value-Unit" (OAVU) numerical knowledge element quadruple expression structure,and then a corresponding regular expression was constructed according to the lexical expression,syntactic characteristics and expression mode of the numerical knowledge element.［Result/Conclusion］Taking lithium iron phosphate cathode material for lithium ion battery as the analysis object,the numerical knowledge element quadruple representation structure was more accurate on knowledge extracting results than knowledge engineering triplet representation structure,making up for the deficiency of numerical knowledge element knowledge representation methods of reflecting technology development level,and providing a data foundation for the development and utilization of big data of scientific and technological literature.

［Purpose/Significance］Explore the data feature-oriented online health community information fusion model,and promote the conversion of multi-source heterogeneous online health community information into health knowledge.［Method/Process］On the basis of combing the current research status,the study analyzed the challenges brought by the current characteristics of online health community data used in information fusion,and constructed an online health community information fusion model based on the sequence theory,transformation theory and integration theory.［Result/Conclusion］The online health community information fusion model includes a core goal,four integration levels,four components and four integration stages.

［Purpose/Significance］The impact of multimodal information such as textual posts,voice and video articles from doctors in the communities on users' behaviors still needs further investigation.［Method/Process］This paper took the Haodf website's user behavior data as a basis to study the characteristics of multimodal data-driven interaction between doctors and patients online with the fusion of text,voice and video articles.［Result/Conclusion］The doctor's multimodal information has positive correlations with the evaluation of doctor's attitudes,services and treatment levels,enhances favorable impression and willing of paying services from patients,and bridges closer relationships between doctors and patients.

［Purpose/Significance］Compared with traditional literature knowledge flow characteristics,there are relatively few studies on the characteristics and quantitative analysis of knowledge flow among core users of academic virtual communities.In this regard,this article mainly reveals the characteristics of knowledge flow among core users of academic virtual communities from the two levels of modeling and empirical research,in order to provide references for promoting the knowledge flow of academic virtual communities.［Methods/Process］Based on the research object of "Dingxiangyuan Forum",this article used entropy method to calculate user influence based on the construction of user influence index system,and combined social network analysis method and PageRank algorithm to calculate user's comprehensive influence to identify core users.And then Python and Gephi software were used to reveal the knowledge flow characteristics of the academic virtual community from multiple dimensions.［Results/Conclusions］This paper adopts the method of complex network to analyze the characteristics of knowledge flow among the core users of academic virtual communities,and reveals the characteristics of knowledge flow among the core users from multiple dimensions such as the core users,regions,disciplines and themes,which lays a theoretical foundation and relevant references for the subsequent research on the manifestation forms and communication mechanisms of knowledge exchange.The research on dynamic characteristics has certain theoretical and practical significance.

［Purpose/Significance］The purpose and significance is to expand the research perspective of scientific researchers' cooperative innovation,to make up for the limitations of previous game research about knowledge sharing,to clarify the endogenous influence of knowledge subject's subjective cognition on the form and equilibrium of games,and to improve innovative of users' knowledge interaction in virtual academic communities.［Method/Process］A variable structure game model of users' knowledge interaction in virtual academic communities from the perspective of subjective game was constructed through the internalization of utility function,the continuity of strategies and the socialization of shared belief based on theoretical deduction and practical basis.［Result/Conclusion］From equilibrium analysis and numerical simulation,it is found that common beliefs such as reputation mechanism determined by subjective cognition and external environmental factors such as reward and punishment mechanism of communities can effectively promote users to evolve from the non sharing state of "knowledge grabbing" to the sharing state of "knowledge complementarity"or "knowledge synergy" in addition to the intuitive impact of knowledge benefits and interaction costs.However,the game rules determined by objective environment can only avoid users' knowledge grabbing,while the game rules determined by subjective cognitioncan can break through the equilibrium state of users' knowledge complementarity and realize the knowledge synergy state.

［Purpose/Significance］Short video is the most influential new media platform for the transmission of Intangible cultural heritage.In order to improve user participation experience and promote the good development of intangible cultural heritage vertical content in the short video platform,this paper explores the motivational factors and the relationship between each factor of user participation behavior on the short video of the Intangible cultural heritage.［Method/Process］Taking the intangible cultural heritage theme of "Huangmei Opera" as an example,the paper identified user comments and characteristics of statistical data by grounded theory.The paper extracted "information man,information technology,information,and information environment" as four information ecological factor dimension based on information ecology theory.Perception involvement and cognitive involvement are mediation variables.The outcome variables contain online behavior offline and online migration behavior.The demographic characteristics,such as region and age,are used as moderating variables to mine the characteristics of user information needs and construct the Intangible cultural heritage short video user participation behavior model.［Result/Conclusion］The results show that the model is consistent with the S-O-R theoretical framework.It expands the framework of S-O-R.Secondly,the information person and the information content have the greatest impact on the involvement.The characteristics of users' information demand focus on "information man-singing strength", "information-content plot", "information environment-distance proximity" and "information technology-social interaction".Emotional involvement and cognitive involvement have a positive impact on the user's participation behavior.Participation behavior is more dependent on emotional involvement.Finally,for the "virtual-reality" situational application,The exploration of R dimension needs to break through,The exploration of R dimension needs to be broken through,and the influencing factors are not just online,the actual offline factors also have influence.

［Purpose/Significance］Refining traditional push-pull theory into a four-force game push-pull theory framework not only improves the application tension of the theory,but also provides strong support for the systematic analysis of factors affecting cross-screen behavior.［Method/Process］Based on the traditional push-pull theory,the two dimensions of driving force and braking force were integrated.And the four-force game push-pull theory framework of internal push,internal pull,external push and external pull were constructed.From the perspective of the "starting screen",and based on this framework,using mixed methods research,combined with in-depth interviews and related research results,the cross-screen behavior influence factors were systematically sorted out,through which a model was constructed,and the model was tested by using the partial least square method and WarpPLS 5.0.［Result/Conclusion］In the dimension of cross-screen behavior driving force,the user's cross-screen preference,user's physiological drive,and user perceived usefulness as an internal force,as well as emergencies and task complexity as an external force,have a positive correlation with the user's willingness to cross-screen behavior;In the dimension of braking force,user perceived high risk,user perceived high complexity and low user satisfaction as an internal force,as well as objective environmental constraints,high difficulty in equipment operation,and poor software portability as external force,have a negative correlation with the users' willingness to cross-screen behavior.

［Purpose/Significance］Based on multiple research studies,this paper explores the existing problems of elderly-oriented APP in the context of information accessibility and propose directions for optimization to help eliminate the digital divide of the elderly.［Method/Process］Firstly,this paper conducted research on policies related to elderly-oriented retrofitting and information accessibility,and based on which designed an interview outline.Secondly,this paper screened APPs and conducted research on their current situation of elderly-oriented retrofitting,and at the same time interviewed the elderly people to obtain their demand for elderly-oriented retrofitting of APPs.Finally,the paper summarized the results of multiple research projects to find out the current problems of elderly-oriented retrofitting of APPs and proposed optimization measures.［Result/Conclusion］Currently,there is still some distance between elderly-oriented APP retrofitting and policy requirements and the needs of users,and there is some optimization space in form elements,content elements and related elements,which requires APP service providers to focus on improving and collaborating with the government,society,families and other parties to jointly build an "elderly-oriented" information accessibility environment.

［Purpose/Significance］Chinese enterprises are facing severer challenges in patent operation under the great power competition,so improving the ability of patent information analysis and management is an inevitable choice for Chinese enterprises to meet the challenges and obtain sustainable patent competitive advantage.［Method/Process］Based on the analysis of the characteristics of intellectual property game under the great power competition and the urgency of Chinese enterprises' patent information management,this paper put forward the analysis process and core contents of enterprise patent information from four aspects,including information analysis task objective,information acquisition,information processing and classification,and information combination and application.After that,this paper designed a patent information management framework,which contained three respects including data and resource management,behavior-scenario management and changing situation management.［Result/Conclusion］The patent information analysis process and management framework put forward in this paper may provide a reference for Chinese enterprises to improve the structure and function of patent information management system when confronting new situation and new requirements of great power competition.

［Purpose/Significance］Public data resources are the core elements of urbanization transformation.In this context,to excavate the collaborative governance value,explore the status quo of organization,operation and resources.And propose the corresponding optimization strategies to provide ideas for collaborative governance and help urban digital development.［Method/Process］The papar collected and studied urban digital documents of 10 cities,analyzed the relevant content of coordination,investigated and visited public data websites,and obtained relevant status and data.［Result/Conclusion］Research on collaborative governance of public data resources based on urban digital transformation can provide impetus for its development,lay a solid data foundation,and condenses the core competitiveness of urban energy level promotion.At present,the orientation of consciousness is formed initially,but the policy guarantee needs to be strengthened.The application of technology has achieved initial results,but the platform coordination needs to be further deepened.The cluster construction has achieved initial results but resource integration is facing barriers.It can be optimized from the formation of value consciousness,clear main role,perfect platform construction,central cluster building and other aspects.

［Purpose/Significance］This paper aims to effectively identify the contents of government data governance system and its designing keys,thus further exploring the concept,method and implementation of data management.［Method/Process］Based on the case study of the U.S.federal government's data governance policy,the practical framework were clarified in terms of policy content,supporting tools,organizational structure,and implementation examples.［Result/Conclusion］Based on analysis above,the strategy of constructing China's government data governance system is proposed in the Chinese context:diversified policy content extension,multiple forms of supporting policies,collaboration mechanism built upon identification of stakeholders,and explicitly connected data management practices.

［Purpose/Significance］Based on the intrinsic characteristics of the topic semantic content of microblog and the mutual coupling between topics,combined with the user influence of network users participating in the topic discussion,this paper analyzes the topic influence of microblog.［Method/Process］Based on text topic recognition and topic similarity calculation,the self inductance coefficient and mutual inductance coefficient of microblog topic were proposed;The study calculated the user influence of users participating in the topic discussion with different types of users and corresponding weights;By integrating the index factors such as topic self inductance coefficient,mutual inductance coefficient and user influence,the calculation model of microblog topic influence was constructed;then the study took the "Chongqing Bus falling into the river" event as the sample data for empirical analysis.［Result/Conclusion］Considering the mutual inductance and coupling of topics at the semantic level and combined with user influence,it has a better effect on revealing the influence of microblog topics.

［Purpose/Significance］This paper clarifies the evolution process of social media disinformation,analyzes the internal causes of disinformation and the evolution mechanism of disinformation.It is helpful to have a deep understanding of disinformation and provide suggestions and countermeasures for management departments to better deal with the problems and dilemmas caused by disinformation.［Method/Process］Based on the life cycle theory,this paper explored the disinformation in social media,constructed the relationship model of the formation mechanism of social media disinformation,and analyzed the internal correlation between the mechanisms.［Results/Conclusion］Based on the research on the mechanism of disinformation,from the perspective of social media companies and government management departments,puts forward coping strategies of social media disinformation from two aspects of management and technology upgrade.

［Purpose/Significance］In the field of Library and Information Science,datametric methods have been widely used in health informatics research and achieved rich results.The article compares and analyzes the current situation of the application of datametric methods in domestic and international research,and aims to draw insights from a datametrics perspective to promote the development of health informatics research in China.［Methods/Process］Taking the research on health informatics in the field of Library and Information Science in recent five years as an example,the article first analyzed the current status of research in terms of the number of publications,journal sources,research subjects and research themes using bibliometrics,then constructed a system of datametric methods using grounded theory,and finally reviewed the specific application status of each method in detail.［Results/Conclusion］There is still a gap between the application of datametric methods in domestic research and foreign research,and there are also some common problems in domestic and foreign research,such as insufficient data scale and backward research paradigm.Therefore,domestic scholars should improve it from the following aspects:opening doors to expand research objects;technology-driven,innovative research methods;cross-fertilization,expanding research contents.

［Purpose/Significance］With the continuous enrichment of situations and the embedding of situational elements in the information platform,the role of information users is also evolving dynamically.In this case,in order to effectively grasp the user's information behavior,this paper combs and summarizes the existing research results of information behavior from multiple dimensions.［Method/Process］The paper followed the important research results at home and abroad,and sorted out the research results abroad from the fields of research,behavior mining,influencing factors,sustained willingness,acceptance experience,research methods,contextual awareness,contextual aggregation,behavioral adaptation and service innovation.The relevant domestic research was summarized from the research object,research perspective,influencing factors,research methods,research fields,acceptance situation and service innovation.［Result/Conclusion］Based on this,this paper compares the research status of information acceptance of mobile libraries at home and abroad from theoretical basis,research object,research content and research methods,and explores the research trend of information acceptance in the future.