Research And Application On Key Technologies Of Educational Ressource Data Exchange Platform

With the continuous advancement of big data technologies and applications,the process of information management is becoming more and more important.As the data exchange platform is an important platform for heterogeneous data release,integration and conflict processing,it is also the basis for providing the upper application of data analysis.Therefore,the research and discussion on data exchange platform is a hot research topic to which scholars at home and abroad pay great attention.Based on the heterogeneous data conflict and integration problem in the research of data exchange platform,firstly,this paper proposes a data exchange platform architecture which can solve the problem of "information island".Secondly,according to the problem of data exchange efficiency of data exchange platform,The data exchange platform is based on the traffic characteristics of the data flow bottleneck test method and the platform flood control attack detection method,and use the Open MP technology to further improve the security of the data exchange platform,Finally,in order to verify the validity of the data exchange platform,this section designs and implements an intelligent guidance system based on data exchange platform,which verifies the practical application of data exchange platform in teaching resource data processing.effectiveness.In summary,the main contributions of this paper are as follows:(1)Aiming at the problem of "information island" caused by heterogeneous environment,heterogeneous database and heterogeneous network data format,this paper presents an XML-based architecture and designs and implements the architecture based on the architecture.A Family-School Interactive Education Platform Based on Heterogeneous Data Exchange.The work mainly includes: 1)deeply analyzing the "information island" phenomenon and discussing the standardization criteria of information;2)designing the architecture of the data exchange platform and the architecture of the heterogeneous relational database;3)proposing the XML-based document Conversion and data concurrency strategy;4)to achieve a heterogeneous data exchange platform based on the home-school interactive education platform.The design of the architecture provides the basis for the research and implementation of data exchange platform switching technology and application technology.(2)Aiming at the problem of "output contention" which appears in the data exchange process of the data exchange platform,this paper chooses a parallel cross-switch switch structure based on the large-scale and high-speed exchange of educational resource data exchange platform,And the operational capability of parallel cross-switch cross-switch is tested by using Bernoulli independent and distributed business model,emergency business model,Chang business model,asymmetric business model and diagonalized business model respectively.The simulation results show that the parallel switching capacity of the crossbar switch has higher performance than the traditional i SLIP structure in the Bernoulli business model.In the burst service model,the parallelization of the crossbar switch in different lengths The performance of the transaction is better than that of the i SLIP.The performance of the crossbar is better in the Chang business model,but the performance of the asymmetric service model and the diagonalized business model is not satisfactory.However,the business type of the data exchange platform based on educational resources is usually a sudden business model,so the parallel cross-switch has important application value in the educational resource data exchange platform.(3)Aiming at the end-to-end performance evaluation of the data exchange platform,this paper proposes an end-to-end bottleneck traffic measurement method based on ICMPv6 based on the network characteristics of educational resource data exchange platform.The main idea of this method is Use tracert to record all the router addresses and the number of hops on the end-to-end path,extract the ICMPv6 timeout message and its corresponding router address and timestamp using the IPv6 stream label,and finally use the subtraction rule to calculate the end-to-end bottleneck flow.The simulation results show that the link bandwidth of the bottleneck bandwidth measurement method based on the subtraction method is stable at 20%,which can effectively improve the utilization rate of the link.(4)Aiming at the flooding attack problem that the data exchange platform may face,this paper proposes a detection algorithm of flooding Do S / DDo S attack based on the characteristics of network traffic change.The main principle of the algorithm is based on the data exchange platform Size,and traffic fluctuation trends to detect the presence of flooding network attacks in the network.The simulation results show that the detection accuracy of Do S / DDo S flood attack based on network traffic characteristics can reach 100%,which can meet the requirement of data exchange platform to monitor flooding attacks.(5)Aiming at the problem of inefficient data processing on data exchange platform,this paper proposes a data platform parallel data processing method based on Open MP instruction,and discusses the overhead problem of Open MP parallel instruction in data exchange platform,including In this paper,we design a series of serial programs and four parallel programs with different Open MP scheduling and synchronization methods,and compare the differences between the different problem scale and the number of threads in the experiment.The cost of the case.(6)In order to verify the validity of the data exchange platform,this paper designs and implements an intelligent guidance system based on the data exchange architecture.In this system,by studying C4.5 algorithm,ID3 algorithm and individual The results show that the new-C4.5r algorithm is better than C4.5 algorithm in the long run time,the size and cost of the production rules,and can be applied to the intelligent guidance system.In view of the above,this paper studies the architecture,data exchange efficiency,data exchange security,data processing efficiency and application of data analysis platform based on the educational resource data exchange platform as the core.The simulation results show that the proposed structure,model and algorithm have some theoretical and practical significance for similar research.