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The contribution deals with the possibilities of the use of existing commercially available vectorization programs for recognition drawing entities in raster graphics format obtained by scanning of the engineering drawing. Drawing entities as a line (solid, dashed, dot-dashed etc.), dimension, hatch, various symbols, text, etc., have specific semantic for the designer defined by standards. Expert knows to interpret this graphic language and he knows to create a mental model of the real object. To be able interpret digital content of the engineering drawing obtained by scanning by the form of 3D computer model often requires to perform many intelligent operations. In the first step it is necessary to obtain such vector representation of the scanned drawing to be able to identify the original drawing entities. Suitability of using the contemporary commercial vectorizing programs for engineering drawings was verified on the test sample of the drawing entities and the results are published in the paper.

Most of the scientific research engines utilize the same way to rank scientific research papers (SRP), this way is highly depend on the citation network. The retrieved results of these engines for any keyword contain old papers with the highest citation value. In this paper, we proposed a new and easy to implement ranking algorithm for scientific research papers known as Paper Time Ranking Algorithm (PTRA). PTRA is a new ranking algorithm that depends on three factors to rank its results; paper age, citation index and publication venue. To construct and prove our ranking algorithm we created a web crawler that crawl different scientific search papers databases in the world to collect the information that PTRA needs. Unfortunately, some of this information was missing, such as, the impact factor of the journals. To collect this information, we created another crawler that search the Internet for these journals impact factors. However, to prove our ranking algorithm results, we have compared PTRA with Google scholar ranking algorithm. We used Google scholar, since it has more than 50 million papers and its own system can gather and collect papers in a faster way. Our comparison results show that, citation index has the highest impact on Google scholars ranking algorithm results. Unlike PTRA that gains the paper age a higher impact on the ranked results. However, PTRA depends on the citation index and publication venue to rank the results but with less impact than the paper age.

Nowadays, the computer is increasingly popular, and college examination is developing in the direction of traditional examination means to automation and intelligence ones gradually, all these make it inevitable to construct question bank for courses, and to generate test paper using computers. This paper uses the Delphi technique, to make improvements to existing components, combining with VBA programming, and use of SQL Server to implement the question bank management and test paper auto-generation system, which could generate test paper in Word Document. A large number of tests show that the software is running stably and system features are functioning correctly on Windows 2000/XP/2003 platform with Office XP/2003 environment.

As a important part of teaching, Traditional paper analysis algorithm is complicated and not comprehensive enough. This paper according to the indicators of education measurement and improves the traditional calculation models, the system assesses the perfect calculation model, The teacher also can get the true and fast reaction to students' knowledge and the quality of the paper. This method thereby provides a convincing basis for the improvement on the future teaching and increase the effectiveness in teaching

Creation of the intelligent system for highly structured domain is possible with determining the whole system of concepts included in the ontology of this area. Presentation by means of formal ontology model provides a uniquely interpreted terms. Based on the model of ontology the intelligent system will integrate their knowledge and information components of all sections of the data area. The paper considers the unification of nanomaterials subdomain with other subdomains that are need to be used for intelligent system for nanotechnology. The paper also proposes mathematical ontology model of one of the component - that is ontology model of foams and emulsions class.

In this paper, we present a new knowledge push technology for complex mechatronic products design based on ontology and variable precision rough set (VPRS). Ontology can explicitly represent knowledge semantics and let designers exchange knowledge about design and the product development process; while using the knowledge reduction method based on the VPRS method, the design knowledge repository is simplified and design rules also be distilled from the reduct design knowledge repository. On the basis of the above approach, multiple designers can efficiently share design knowledge and can obtain appropriate design knowledge during all design processes. Finally, a case is employed to validate the proposed method of this paper.

In this paper, a solution for the automatic control of a chemical exchange process carbon dioxide (CO2) – carbamate for the 13C isotope enrichment, is presented. The main original achievement from the paper is the inclusion of the previously mentioned non-linear technological process in a control structure. The design of the automatic control structure of the 13C isotope concentration is based on the Internal Model Control (IMC) strategy. The implementation details of all the elements from the structure of the proposed control system, in MATLAB/SIMULINK, are presented. Also, some relevant simulations of the automatic control structure are presented.

This paper proposes a storage-independent model for SPARQL-to-SQL translation algorithm based on relational view. During the development of Web ontology researches, the study for translation from SPARQL to SQL still remain issue. Previous researches focus on efficient and complete translation from SPARQL queries into equivalent SQL queries. However, these translation algorithms depend on specific structure of storages. When we modify the structure of storage, the translation algorithm also should be modified suitable changed structure of storage. This motivates us to study the issue of a model for independent use upon storage structures of an algorithm, which can then be guaranteed independency between translation algorithms and storages by generating relational view, and it improves application and usability of a translation algorithm. In addition, this paper show experiment result about accuracy and no data loss rate of query results on several storages.

This paper proposed a spelling error detection and correction using the linguistic features and knowledge resource. The linguistic features mainly come from language model that describes the probability of a sentence. In practice, the formal document with typos is defective and fall short of the specifications, since typos and error hidden in printed document are frequent, rework will cause the waste of paper and ink. This paper proposed an approach that addresses the spelling errors and before printing. In this method, the linguistic features are used in this research to compare and increase a new feature additionally that is a function of Internet search based on knowledge bases. Combining these research manners, this paper expect to achieve the goals of confirming, improving the detection rate of typos, and reducing the waste of resources. Experimental results shows, the proposed method is practicable and efficient for users to detect the typos in the printed documents.

An intrusion is a series of relevant actions that occur to a victim in some sequence through the Internet. In this paper, a serial episode mining is first applied to find all possible sophisticated Internet attacks, and then an episode pruning skill is applied to cut unnecessary ones to reduce administrator’s further effort. Input data, log files from a honeypot system, is regarded as a sequence of events, where each event has an associated time of occurrence. The method proposed in this paper can be used to detect abnormal Internet episodes including unknown attacks. Some experiments had been conducted to show the effectiveness of the proposed method.

This paper deals with issue of properties specification for software verifications and translation between formal languages. Through this paper, the unique framework of property specifications including most kinds of formal specifications logics, automatic methods are shown by a property specifications guided system and PVSL(The Pattern based Visual property Specification Language).Additionally, a properties to specify and structures, Interconnection of them are also described by property charts. In this study, the pattern based visual property specification language (PVSL) is defined and property specifications method is also designed by convenience specifications of required property.Required properties can be described by its charts and analyzes its meaning and structures as using patterns diagrams and property and-or tree. On the other hands, it also guarantees stability and limitation of utilizations of patterns using much stronger specifying Dwyer`s meaning based property classification. The PVSL and property charts use hierarchical state machine notation to take advantage of knowledge a person who is one of practitioners has as much as possible, and for Nu-SMV, CW-CNC. They can be adapted to describe property charts and analyze into examples of CTL(Computation Tree Logic) and Modal Mu-Calculus logic that have been already used.Keywords: Patterns, Property specifications, model checking, Software verification

In this paper, several data mining techniques were discussed and analyzed in order to achieve the objective of human daily activities recognition based on a continuous sensing data set. The data mining techniques of decision tree, Naïve Bayes and Neural Network were successfully applied to the data set. The paper also proposed an idea of combining the Neural Network with the Decision Tree, the result shows that it works much better than the typical Neural Network and the typical Decision Tree model.

In a recent paper, Chang et al. proposed an authentication scheme for E-coupon systems and proved that their scheme can prevent a range of attacks. In this paper, we reanalyze the Chang et al.’ scheme and demonstrate that it cannot resist off-line password attack, masquerading shop attack and masquerading customer attack. Moreover, it cannot achieve two security properties that is anonymity and traceability. Meanwhile, Lee proposed an efficient chaotic maps-based authentication and key agreement scheme using smartcards for telecare medicine information systems. In the scheme, we find it also cannot resist off-line password attack, masquerading attack. Unfortunately, it resists an deadly error. So the scheme cannot run.

This paper presents a lightweight index does not suspend services online update program, and demonstrate the performance of the index update program from the theoretical analysis and experimental data in two ways. A new method of MapReduce existing index methodology based on this design and further discussion are done in the paper, in the index MapReduce and Hadoop MapReduce feasibility aspects, the design flaws through experimentation.

For the shortcomings of the traditional workflow in flexibility, this paper analyzes the advantages of Role Based Access Control Technology (RBAC) in realizing procedure permission dynamic management. With RBAC applied in it, this paper also constructs the flexible workflow model of Role Based Access Control and gives out the definition of the engine as well as the components concerned. In addition, it also solves the problems of the flexible operation of resource and dynamic assigning tasks in the business process, and applies the engine into the specific business process.

A Chinese web-page classification algorithm based on SVM including the important aspects of text preprocessing, feature selection and multiple-Classification algorithm. In this paper, based on the analyses of features of Web documents, this paper does research the approach of classification in Support Vector Machine (SVM) and select of Kernel function. Furthermore, a web-page classification model and algorithm that is based on Binary Tree SVM is presented. The experiments show that it not only reduces the size of train set, but also has very high training efficiency. Its precision and recall are better.

Mental model is the key to meet user’s needs, improve effectiveness and reduce critical errors of the interaction in the e-book application interface development. Constructing app function rules based on mental model is a research focus in menu interface design of e-book application. In this paper, college students were selected as target user group with comparison between light users and heavy users. By interviews and observations on users’ behavior of reading e-book and paper book, thus a scheme of function definition of e-book app based on users’ goal and behavior needs was formed, which can be applied to construct interface layout based on college students’ mental models, thus be propitious to enhancing user experience.

An execution system of distributed performance testing is designed in this paper, which provides a mechanism of node communication, test script deployment, test scheduling, execution-driving and test result collection in distributed environment. A workload model is established, by which testers can describe the performance testing requirement. A performance testing framework is given, which simulates user behaviors in real environment based on virtual users so as to generate workload from the system under test (SUT). It can control the execution of virtual users by TTCN-3 standard interface. After executing the performance testing, test report is generated by extracting log. A method of generating performance test-case is studied by reusing functional test scripts. By executing performance testing on an online bookstore, this paper demonstrates the availability of the method of reusing TTCN-3 functional test scripts and the capability of distributed performance testing system established.

The query of database must rely on professional query language, which is difficult to grasp for ordinary users. Natural language query interface (NLQI) can be applied to solve this problem with better human-computer interaction and intelligence. However, current natural language understanding technology is not mature. Though the query sentences’ structure is fixed, it is also difficult to accurately convert query sentences into understandable database query language for computer. Therefore a method of designing NLQI based on syntax and semantic analysis is proposed in this paper. First of all, Maximum forward and maximum reverse matching algorithms are used to analyse sentence by part of speech (POS) template, which is able to demonstrate the syntax relationship among the words. After syntax analysis, query conditions and targets are identified. Then, single conditions and targets are analyzed to relative standard forms by the relationship among entity, property, connect verb and unit. At last, these standard forms are transformed to SQL sentence. Regarding printing ERP system as experimental subject, experiment is done in this paper. The result shows that the method proposed in this paper can meet the needs of natural language query, and has a good transform effect for combination, omitting and other complex sentences.

Video server providers invest more and more on the server, for how to provide a stable and low-cost continuous service to users of this problem. In this paper, hybrid architecture in the user how to choose a cloud server in-depth analysis. And how to choose a cloud server for this problem, this paper analyzes the current server selection method, coupled with P2P mode users the ability to upload and server memory on this basis for modeling, then verified through simulation experiments proposed the effectiveness of the method.

Geographic Information Service is open service based on the network environment. DEM should be protected because of its significance. This paper gives three methods for DEM information protecting, they are DEM encrypting, DEM information hiding and DEM Information disguising, and researches their theories and techniques. Then, this paper analyses their differences and relation. This paper could provide theory support for DEM information security research in Geographic Information Service.

With the development of computer technology and information technology, voice interaction has become a necessary means of human-computer interaction, and voice signal acquisition and processing is the precondition and foundation of human-computer interaction. This paper introduces the MATLAB visualization method into voice signal acquisition system, and uses MATLAB programming method to drive sound card directly, which realizes the identification and acquisition of voice signal and designs a new voice signal visualization acquisition system. In order to optimize the system, this paper introduces the variance analysis algorithm into the design of visualization system, which realizes the optimization of voice signal recognition model with different level parameters. At the end this paper does numerical simulation on the speech signal acquisition system; through signal acquisition 2D and 3D visualization voice signals are obtained. It extracts single signal characteristics, which provides a theoretical reference for the design of signal acquisition system.

Current remote attestation schemes in trusted cloud computing lack of dynamic measure scheme of virtual computing nodes. In this paper, by the analysis and comparison of existing remote attestation technology, we propose a trust measure of virtual computing node running state, and a remote attestation scheme based on the trust measure results and CP-ABE attribute access control. By RO security analysis, and a simulation, we verify the security and efficiency of the program. The trust measure of platform running state is mainly based on the trust rating of the programs running on the platform, and a total trust value of the platform by an algorithm. The trust measure of virtual computing node running state is mainly based on the trust measure of the programs running on the platform and CP-ABE attribute access control. The remote attestation for the trust measure of platform running state is based on CDH problem. In this paper, we carry out simulation experiment with different proportions of non-credible nodes and the experiment results verify the trust evaluation efficiency of the scheme on the virtual machine.

Based on the study of abroad foundation on visual theory, we conduct depth discussion of the current introduction of visual teaching meaning. For the current computer graphics course content, we determine a visual teaching content and objectives, carry out the study and practice of computer graphics algorithm visualization teaching. This paper uses VB 6.0 visual programming tool to generate the basic primitives, polygon filling, cut a straight line segment, curve generation and visualization of fractal algorithm design and realization. Through analysis, this paper hold that use of visual teaching has a positive effect and influence for professors to change the way teachers help students understand computer graphics algorithm. In the process of teaching, students improve the understanding, exploration, discovery and creativity through observation, conjecture and verify.

The paper put forward a new aided translation's pattern, Bilingual Assisted Translation Search Engine. It's different from traditional machine translation, does not rely on the computer's automatic translation, but according to relevant translation list given by system, and get the correct translation by people. Compared with automatic translation machine, it has better quality; compared with artificial translation, it has more efficient. For users, the relevant translation we provide more accurate and matching unless there is a large corpus, so the core of the system is the construction of the bilingual corpus. The paper adopted the method of web data mining and search engine technology, completed the construction of large-scale corpus automatically.

Mechanical drawing language EQS, its full name is Equally Spaced, which means the uniform distribution of meaning. Now, its importance is more and more incarcerating. This paper outlined the application of EQS in Applied Linguistics, firstly introduces the general situation, then describes the modeling steps; finally applied linguistics tells the story of EQS. In this paper, it mainly used the literature review method and literature survey.

Cloud computing technology is emerging technology in the field of information technology, and its technical advantage has brought new opportunities and challenges for the development and service of digital library in the Internet era. Virtualization is the key technology of cloud computing, and the paper discusses the virtualization of digital library in the cloud computing environment from technical level. Firstly, the paper introduced cloud computing and virtualization technology; then created a virtualized environment for digital library based on the cloud computing technology, and described the function of various levels; finally, the capacity of virtual machines appointment scheduling can be calculated according to formulas. The paper has great significance in enhancing the efficiency and quality of library service, constructing resource sharing system of digital library.

In order to adapt to the demand of integration and sharing about electrical power school and to break the limitation of "Islands of information", it is necessary to develop a loosely coupled information system. This paper introduces the system application demand of electrical power school, and designs the functions of the system and scientific object-oriented data model. A concept of operating mode information system is designed based on cloud computing. Object-oriented programming language C# is used to develop the prototype of the system. The result of application is showed in various UI. This paper provides a valuable reference for the information technology future about electrical power school

this paper uses a new genetic algorithm (New Genetic Algorithm, NGA) to implement the automatic group volume function, solving the problem that the paper is not fully considered scores distribution of knowledge points in the test paper (test dimension) in the system using traditional genetic algorithm (Genetic Algorithm, GA) to implement automatic group volume, putting forward and redefining the fitness function to speed up the convergence. Simulation experiments show that the NGA algorithm is not only efficient, but can generate a valid paper, making the paper score can on the multi-dimensional of the test as far as possible to achieve uniform distribution.

The paper introduces the recent advances of machine translation technologies by decrypting several famous machine translation systems, and discusses the trend of the future development. The application of machine translation is introduced at last. In this paper, machine translation of the core of a few, summed up the machine translation system framework, discussed the modeling machine translation factors should be taken into account, a detailed analysis of segmentation, alignment sentence, the translation of knowledge acquisition, translation clips choice and in the machine translation: Generation's role in the process, completed a Machine Translation modeling, achieving a machine translation system.

School enterprise cooperation mode is the double oriented education model based on enterprises needs and teaching goal, and is an effective way of improving the universities teaching quality and cultivating students' practice innovation ability. Based on the network perspective and enterprise demand, the paper designs a kind of new business English teaching cases computer system, and the system uses the internet interactivity make enterprise staff and teachers can achieve real-time interaction. In order to optimize the teaching case system, this paper uses parabolic interpolation to carry on multi node modification for the network transmission signal, and then a single objective network nodes optimization model will be established, and the use of VB software carries out visual programming for the system, it can enhance the system easy to operate and real-time interaction, which provides a new method for the design of computer English teaching case.

With the rapid development of society and computer technology, the combination of mathematics with computer technology is playing an increasingly important role in each field of society. In this paper, we mainly discusses the important role of MATLAB software in mathematical modeling, so as to raise the understanding of MATLAB and the efficiency of mathematical modeling with MATLAB software, and then improve the ability to solve practical problems. This paper explains the general process of mathematical modeling, studies the function and characteristic of MATLAB and its application in mathematical modeling. There are analysis of the key technologies and solutions required in the development process. Practice has proved that the MATLAB mathematical modeling can be used to improve the efficiency and quality of mathematical modeling, enriching the ways and means of mathematical modeling, and has great effect on the teaching of mathematical modeling course.

The safety issue of cloud computing arouses much attention recently. In this paper, it is firstly introduced the related concepts, then it is introduced the current situation of cloud computing as well as potential safety hazards and security reference model. The conclusion is drawn in the end of this paper.

Cloud computing and mobile Internet is a new computing model based on Internet business that is a mixture of many technical results, it has the advantage of safe and reliable, massive information storage, fast and convenient. This paper mainly discusses the advantages of mobile digital library, and puts forward the mode of constructing the cloud computing and mobile Internet library based on information platform, analyzes the basic architecture of mobile library, in-depth study cloud computing and mobile Internet in library information platform access model and database model, finally the paper gives general idea to construct digital library using mobile WAP Technology.

This paper presents an approach to various forms of security and different access levels required in an information system by analyzing mathematical models that can be applied to this field. By describing their structural characteristics and how they find implementation in the study of information security, this paper underlines the necessity, means and effectiveness of information security modeling. The conclusions of this paper highlight the importance of a well-defined security risk management and how achieving this goal provides an opening for future research.

This paper studies the software automatic test in virtual machine environment. The existing software automatic testing technology is not compatible for virtual machine. Cloud-based virtual environment provides a new means for the software test. A novel testing framework is proposed in this paper. The new technology combined cloud-based virtual environment and related the software automation tool. The fully test procedure are provided with test design, test develop, test execute and test result collection. The character for different application could be supported in this framework. The virtualization technology is used to test some applications and proved effective.

This paper analyzed current network security of the small and medium-sized enterprise, and discusses the existing problem in small and medium-sized enterprises and the existing technology, and network security and management. Finally the paper points out the network security and proposed network security model with four layers (application layer, system layer, network layer, physical layer) network defense in depth security solutions and network security deployment plan based on the MPDRR (safety management, safety protection, safety inspection, safety, security response recovery).

With the more and more expanded city and the heavier remote sensing image production, update, management, building the modern Remote Sensing Image Publication System is placed in the forefront for providing the good services. The paper discussed the NET system of Remote Sensing Image Publication System based on SuperMap IS.NET, and so more, the core contents including data-model, system-structure, system-aim, and key technology about the system are introduced in this paper.

To address the problem of high occupancy of resources and slow response of current scheduling of cloud computing resources, this paper proposes a scheduling optimization algorithm based improved ant colony algorithm. It makes resource reservation through migration of virtual machine, uses dynamic trend prediction algorithm to forecast the load changes of data center, and puts forward the concrete complement to adjust reduction. Experiments show that the combination algorithm proposed in this paper are efficient to improve the performance of data center, accelerate the response speed and increase the precision.

Infrared communication technology is a short-range wireless communications technology widely adopted in the world today range .This paper detailedly introduces the basic principles of infrared protocol. Infrared communications applications of this paper is to achieve system applications of infrared communication between two development boxes with an infrared transceiver modules.The program consists of PC program and lower computer program two parts,also are called infrared communication basic procedures and infrared communication console program.Running PC program on a PC,running lower computer program on the development box.Based on Borch-company's S3C2410-S ARM9, experimental development box implements a infrared communications infrastructure lower computer program based on serial meeting SIR standards.By calling the Qt graphics library,using the programming language C++,it achieves a visual infrared communication console PC program under linux system.

With the development of information technology, the system structure of Oracle database is increasingly complicated. The performance is improved, and the application range is expanded, but there are still many unstable factors. Combined with Oracle system structure, the paper expounds data optimization from many aspects including OFA free structure, rollback segment, operating mechanism, hardware and OS environment, and the paper formulates the corresponding optimization strategies.

The architecture of the system is divided into some modules according to the operating level: interface layer, the database engine layer, and data access layer, database maintenance module and data storage module. This paper discusses in detail the data definition design and the important function of EDB and realizes the EDB management implementation details. The paper introduce in details the EDB system architecture, the design of physical storage structure and basic table structure. Through the actual use, the database system is suitable for embedded systems with limited resources, has good portability.

The paper combine cloud computing with knowledge management, and classify the knowledge management of enterprise information management system, finally the paper plan and design the overall architecture of enterprise management information system. According to the model of cloud computing, establish the cloud computing platform based on the construction of cloud computing and virtualization technology, in order to achieve the overall architecture of the management information system of enterprise that migrate to the cloud computing environment. This paper mainly introduced in the cloud computing architecture of enterprise management information system under the environment of cloud computing and implementation of knowledge management system.

An advanced verification platfrom based on UVM architecture is implemented in this paper. This paper presents a hierarchical verification environment that is portable, reusable, and easy to extend, which is constructed based on an object oriented language named System Verilog. The verification platform is applied to verify a RFID (Radio Frequency Identification) tag chip which is compliant with the ISO/IEC15693 standard, communicates with a reader outside through a RF analog circuitry, completes anti-collision flow, selects card, authenticates based on SM7 algorithm and controls the writing and reading of EEPROM inside. According to the instruction supported by the tag chip is wide and variety, and further more it’s very rich in the command frame contents, the advanced verification platform which achieves the constraint-random stimulus generation, functional coverage and self-check mechanism, reduces the verification cycle, improves verification efficiency and ensures verification adequacy.

This paper considers the factor of a mechanism based on customer, with the purpose of getting to know the different characteristics that must be taken into account during the development of software as a procedure. This also involves the attending of all kinds of relevant person of the Information system model together with the users’ message exchanging experience. This paper offers a mechanism of the related role in the design of a software component as a procedure, with the target of confirming their attending outside and within the organization. The purpose is to create a component centered on the user, involving clients and experts to work collaboratively; and get usable software as information system.

In the research of Delay Tolerant Network (DTN), DTN routing algorithm is a key research issue. The performance of a non-flooding routing algorithm is verified in our paper. The verified algorithm is an Adaptive Priority Routing Algorithm (APRA) which is based on fuzzy strategies. Firstly, we introduce the principle of APRA, then using Opportunistic Network Environment (ONE) -simulation software to compare the performance of Epidemic algorithm, Spray and Wait algorithm, PRoPHET algorithm and APRA. By comparing overhead of netword, rate of messages delivered and average dealy, it finds that the APRA performs better. At last, the weaknesses of this paper and further improvement are also discussed.

In this paper, we propose an automatic preposition correction method for Chinese learners of English. Our corpus comes from Chinese learners of English Corpus (CLEC). We use N-gram model to extract the semantic features based on the form of the word in context, part of speech tagging and syntactic parse tree. Meanwhile, this paper proposes a new method based on mutual information and improves the training and classification method. This method’s performance has been improved in terms of both effectiveness and efficiency, and the results show a significant improvement compared with the previous results.

This paper presents design and development of a viewing and editing tool, namely 3DPJ Editor, for Workflow visualization of 3D Print Job files. 3D Print Job (3DPJ) is an XML based format for 3D Printing job purposed to enable automation and integration of multiple vendor systems in a 3D Printing manufacture environment. The paper also shows preliminary 3DPJ format for further development of 3D Printing manufacture community with multiple vendors. The 3DPJ Format tries to separate content information and meta-data of 3D Print Jobs, in order to integrate different processes into one standard 3D Printing Workflow. The complete specification of 3DPJ should be further complex and comprehensive, and it should be gradually adopted by major 3D Printer vendors.

With the development of computer and network technology, data mining based on database tables already cannot satisfy the need. The emergence of the Internet has huge amounts of information resources of the computer, and the implied knowledge but it has not been fully used, therefore the Web mining technology become the hotspot in research of high-tech. XML allows structured data from different sources together easily, thus making it possible to search diversification, incompatible database, Web data mining brings new opportunity. In this paper, through the study of the application of XML in Web data mining, this paper proposes a data mining system structure based on XML.

the accurate data mining problem is studied in this paper. With the increasing of data attributes, degree of complexity of the data storage is also increased, resulting in that in data mining process, the complexity of computation is too high, reducing the convergence of the data mining method, thereby reducing the efficiency of data mining. To this end, this paper presents a data mining method based on association rules algorithm. The data is made simplified processing, to obtain the association rules between data which provides the basis for data mining. According to the association rules between the data, the data in line with the minimum support degree is calculated, to achieve accurate data mining. Experimental results show that the proposed algorithm for data mining, can improve mining efficiency, and achieve the desired results.