To meet different needs of users in the recommendation system, an immune clone algorithm is proposed. The problem is modeled as a multi-objective optimization problem to maximize the accuracy and diversity in the recommendation lists. It uses collaborative filtering technology to finish the user classification. Antibody coding and the immune operator that suitable for solving the problem are designed in the algorithm. The results show that the proposed algorithm can effectively obtain the optimal solutions of personalized recommendation, which satisfies with different needs of multiple users at the same time.

Aiming at the problems of practical teaching in higher vocational colleges, we should set up and improve the practical teaching goal system, content system, security system, Supervision and management system. Taking the quality assessment system as a breakthrough, we should design systematically, and construct the practical teaching system scientifically, avoiding "fragmentation" and " indiscriminate force ".

The teaching reform of computer basic course based on computational thinking is a hotspot at present, and the reform of examination mode is also imperative. This paper analyzes the drawbacks of the traditional examination and the prerequisite of the examination reform, and puts forward the reform guiding ideology and concrete reform measures.

In this paper, a kind of innovative solution for the dual purpose device about umbrella drying and sole cleaning is put forward. The system is designed using two STM32F103RBT6 micro-controllers as the intelligent control center. Through the introduction of serial communication and external interrupt detection technology, the complete multi-function cleaning and drying device is composed of the motor master controller which is connected to the information processing and displaying control system. The integrated system uses programming method and hardware design to achieve the functions of cleaning, drying, and human-machine interface. Meanwhile, the circuit is simple and flexible, together with high degree of component recognition. All users could check the real-time status of the device through the resistive touch screen directly. After testing, the results show that it has good stability and strong feasibility.

This article introduces the design of umbrella renting machine based on SCM STC89C52 with the bike’s design concept, in order to avoiding the trouble of sudden heavy rain if people forget to bring their umbrellas, providing convenience for teachers and students in school. It also applies to other public facilities. The design uses SCM STC89C52 as controller, PN532 contactless RF card as information acquisition unit. It controls the stepping motor to achieve the opening and closing of the lock.The design is simple, bringing personalized learning and working environment of the campus with certain applications.

With the transformation and upgrading of the Internet of things and manufacturing and other emerging industries, the needs for high-quality skilled personnel training rise to an increased demand. Taking the electrical automation specialty of Wuxi city college of vocational technology as an example, this paper studies the construction of electrical automation specialty in higher vocational colleges. It provides reference for talent supply and demand of the current school and enterprise, improving the quality of the training of highly qualified technical talents and enhancing the service capacity of the regional manufacturing industry.

With the continuous development of information technology, companies reduce the consumption of manpower and materials with the meeting room management system, adding conference room services, improving the service level of the conference room, and reducing the management problems. The system is based on JSP and Servlet provided by J2EE platform, using MySQL database. The system is simple, easy to be operated. It has simple interface and complete functions, which will play a role in the information management of company.

This paper develops an Android campus assistant app, which uses Android Studio as the development platform, and uses JSON data format as the carrier. This paper elaborates on the usage of the JSON data format, the application of Gson in JSON formatting data and JSON data objectification, and the interaction between client and server. The realization of these technologies has practical reference value to the development of related project.

In view of the data processing problems in data center brought by the Rapid increase in data volume in the current development of cloud services, this article carries out the Hadoop performance testing. Firstly it describes to the Hadoop performance under cloud computing heterogeneous environment, then analyzes differences of performance between two kinds of nodes in Hadoop cluster, and gives out the experiment design and experimental results of heterogeneous platform.

With the popularization of Internet, the number of netizens in China has been on the rise, and both public opinion and content have been rising. As the emergency has its specific life cycle, network emergencies also have their time points. According to the changes in public opinion, the network of public opinion on the dissemination of emergency control should be paid attention to, to avoid group polarization and public opinion of the multi-level derivative. This paper analyzes the construction of network public opinion evaluation index system, build network public opinion forecast model and unexpected events network public opinion early warning measures; researches on the emergency network public opinion dissemination and early warning mode.

As the influence of Wechat becomes increasingly strong in the internet era, more and more colleges and universities begin to use Public WeChat to carry out new media promotion, teaching innovation and campus service. Through analyzing the type of public WeChat and its general application in colleges and universities, as well as the research on netbox, this paper helps to the type orientation and service location of college public WeChat, improves the service ability and contributes to the sustainable development of education in universities.

With the high-speed development of computer network, computer has played a vital role in each domain of the society. The logistics management system based on C#.net makes the requirements of logistics management more systematic and more standardized. This system not only reduces company's operation cost, but also raises the working efficiency greatly.

IOT major entered in the higher professional and technical school in 2011. From then on, practice teaching is an important link in the teaching system. There are several problems in traditional teaching method such as task allocation, process assessment, result preservation, etc. This paper uses Github to control every course of every student, help teachers to complete the IOT courses teaching, and list the project example. It proves that the Git system can improve the quality of training and teaching, and improve the students' employment competitiveness.

Since the emergence of Internet technology, it has aroused widespread concern in countries around the world, and it is considered to be another wave of information industry following the computer, Internet and mobile communication network. Based on the introduction of the present development situation of IOT, this paper discusses on the technologies to be broken through, and forecasts the prospect of the Internet of things.

This paper describes the development of wireless network communication technology, especially analyzes the existing problems of the 4G network security technology and proposes corresponding protection measures. This paper has a certain positive significance for the relevant communication and network security personnel.

With the rapid development of science and network information technology in recent years, cloud computing begins to appear in the public. This article introduces the concept of cloud computing, analyzes the realization of the network technology based on cloud computing and its development challenges, in order to better promote the development of cloud computing.

With the thought of artificial intelligence, this paper uses the backtracking algorithm in solving Einstein’s Riddle, which can reduce the number of permutations by seven orders of magnitude and greatly improve the problem solving speed. The program includes a clue input function and puts the puzzle clues in vector. The content, quantity and sequence of the clues can be modified at random, to resolve new puzzles without modification of pruning function code. Therefore, the program has good applicability.

This paper expounds the common computer programming languages, analyzes their influences on computer software development, and discusses on the choice of programming language, aiming to provide some ideas for the reasonable selection of programming language in software development.

Tetris is a very popular puzzle game. This paper describes the design of using C# to achieve the game, the main types of knowledge and code.

This paper introduces the conception of CSS layout based on the box model. It makes comparative analysis on the four property values of the Position attribution, and illustrates the application of the relative attribution and the absolute attribution of Position in CSS layout by a specific case.

As a computational tool, calculator is used widely. This paper designs a calculator based on Swing and Action event handling mechanism. It is helpful to learn Java programming, and especially has guiding role for Java Programming.

Based on the combination of PHP+MySQL dynamic web design, with example of course voting, this paper designs the online voting site with functions of user management, data validation, qualification examination, and votes statistics.In this paper, the design process is described in detail. The design method used for other voting website design has a certain reference value.

This paper uses some new information technology to design a mobile video surveillance system for the needs of the users. The mobile video surveillance system uses the AI2 programming technology, H.264 video compression encoding technology, network transmission technology, and SAE cloud computing technology. It has the functions of mobile video on demand and mobile video online collection. The administrator uses Windows client terminal to manage the user information and video data of SAE cloud server.

As the continuous developments and wide applications of the smart mobile terminals, this paper studied and designed a digital orientation system. The system changes the traditional cumbersome register process. Using the system, students can pre-register on the internet or mobile terminals like mobile phones. Works such as personal information perfection, green channel application, tuition and fees payment, voluntary purchases on articles of daily use and uniform for military training, information registration of arriving at the university, classmates check, registration sheet print and so on can be done all at once without leaving home. The system can really help new students and their parents experiencing "one-stop" services. And all kinds of statistics reports can improve the efficiency and service level of orientation management greatly.

Aiming at the the low quality of feature clustering and excessive redundant alarms in IDS, an IDS alerts clustering algorithm based on novel chaotic particle swarm optimization is proposed. It combines the characteristics of chaotic PSO algorithms, adaptive inertia weight coefficient, and non-linear dynamic learning factor, so as to make particles move between the state of chaos and stable. It guarantees the particle motion inertia, and approaches the optimal value. It also can overcome the problems of premature convergence and "inert" reaction of PSO algorithm, and help the center of cluster to find the global optimal solution. The experiment results show that the improvement of particle swarm parameters improves the quality of feature clustering in IDS alarm, and has higher detection rate and lower false detection rate.

The monitoring system is an important component of the water supply system. Only to grasp the real-time data of important monitoring points, urban water supply system can improve the quality of the water supply. This paper analyzes the development status, overall design and the system composition of the intelligent monitoring system of urban water plant, hoping to meet with the demands of people for water resources.

With the rapid development of science and technology, information technology has been widely used in various fields. File management plays an important role in the company construction and has profound influence on the long-term development. The informationization of file management has become an inevitable trend in the new situation. This paper analyzes the current problems existing in the file management, and puts forward the corresponding countermeasures.

This paper analyzes the defects of e-commerce teaching in higher vocational schools, and proposes a series of related solutions, aiming to establish the hierarchical teaching of e-commerce teaching, to enable students to meet with the needs of employers in practical ability.

Aiming at some problems of computer laboratory management of colleges and universities, this article firstly expounds the meaning of construction of university computer laboratory management system; secondly, it analyzes the current problems of the management, such as incomprehensive management, backward management, lack of attention to students' quality education and so on. It puts forward the design of the intelligent lab management system, hoping to provide some reference to the related field research.

Through the analysis of existing problems in practical teaching in higher vocational college, this paper researches on the method of practical teaching in the course, practice, internship and graduation design, in order to strengthen the cultivation of students' learning ability, improve the effectiveness of practice teaching, and achieve the talents training objective.

With the continuous progress of science and technology and the continuous development of social economy, computer technology of our country has developed rapidly. In the era of science and technology, the computer network is filled in all stages of teaching, which also plays a guiding role in the development of computer teaching.