Earticle

With the continuous development of information technology, database as the core part of modern information system, it undertakes the task of storage and management of data information. In the process of database query, it is of great importance to protect the security of privacy information of both parties. However, the existing programs encrypt the entire database; the encryption cost is excessively high. In order to solve this problem, the article takes the advantage of security assumptions of exchange encryption and obvious transfer technology to propose a database privacy information query program based on secure multiparty computation as well as analyzes the correctness, security, and the complexity of the design. The results show that the computational complexity of the program mentioned in the article is significantly reduced.

In the modern era, digital data is considered as the more valuable asset of an organization, and the organizations assign more significance to it than the software and hardware assets. Database systems are computer-based record keeping systems, which have been developed to store data for efficient retrieval and processing. One particular approach is the relational databases in which all the information is stored in rows and columns in a series of interconnected tables, and a snippet of structured code called query is used to interact with these database tables. Database management involves indexing of data by tagging information based on some common factors and corresponding criteria. Performance of SQL query against a production database eventually becomes an issue sooner or later. The time-intensive queries not only degrade performance of servers and applications by consuming substantial system resources, but can also result in table locking and data corruption. Therefore, query optimization becomes necessary to prevent performance degradation. Query optimization primarily means selection, followed by sequencing in specific order, of the different SQL clauses to formulate an efficient query from the multiple query plans by drawing a comparison of the query plans based on the cost of the resources involved and the response time. The objective of query optimization is to provide minimum response time and maximum throughput (i.e., the efficient use of resources). This paper reviews different query optimization techniques and approaches discussed in the contemporary literature for both centralized and distributed databases. The paper also highlights merits of these techniques by critically analyzing them.

In this study, a new SOA-based business software rapid development platform (SOARDP) is presented to solve the main contradiction between the personalization of user’s needs and the versatility of the software products. The platform integrates the idea of service-oriented, model-driven, Ajax, BI and so on, to improve the speed of business software development. The PICC’s (People’s Insurance Company of China) performance appraisal system was developed from the platform. The application shows that the platform can greatly improve the efficiency and quality of business software development.

Patients with kidney disease are increasing every year. The majority of these are a chronic disease. These patients, in addition to modern medicine in the treatment should be treated by diet to some extent on the type and stage of disease, because the diet of patients with kidney disease, it is necessary to limit certain nutrients such as sodium salt, salty food, which comes from them and various kinds of food that the patient must eat the tasteless This unusual diet, the majority of Thai people like to eat spicy food. We address the development of an information system for kidney disease patients. It includes knowledge about the nutrition, the disease information as well as questions to help suggest nutrition for each patient. The knowledge are gathered from a cookbook for people with kidney disease. The user must answer questions about the symptoms. The answers are used together with the mechanism of forward chaining to suggest proper nutritious foods for the patients. The system contains food database and nutrition which can further be modified. The user satisfactory testing by 30 samples shows that the system in good on average.

Advances in mobile computing, wireless communication, and positioning technology have flourished Location Based Service (LBS). This results in a large amount of trajectories accumulated in LBS applications. As a fundamental research spot, trajectory matching algorithm has drew much attention from image and transportation communities. While the various location update strategies in LBS make trajectory matching a more challenging task, since the different samples of one trajectory should not be falsely recognized as another trajectory. Besides this, LBS applications also require the trajectory matching algorithm to be sensitive to time sequence and tolerate to time scaling. A dynamic time warping based algorithm is proposed in this paper. Extensive experiments show the effectiveness, time sequence sensitiveness and time scaling toleration of the proposed algorithm.

With the rapid growth of data storage and processing in demand for Internet Innovation Union (IIU), traditional storage systems could hardly meet most of efficient data access requirements. The paper analyses the advantages and characteristics of private cloud system storage and presents a cloud storage solution of sensor data based on the Hadoop cloud computing framework. Contrast to the private cloud system storage and traditional storage model, the cloud storage solution is more suitable for IIU. The stress tests of the cloud storage solution were performed by compiling YCSB workload class based on MapReduce programming model. The results indicated that the cloud storage solution had better data access performance, and well supported the IIU platform.

Business process modeling is an approach that builds visual representations of business activities, events, flow controls, functions, applications, stakeholders, and their relationships. It has been shown that such modeling significantly benefits an enterprise by providing an instrument for documentation, communication, and management purposes. Extensive work has been published in the area of enterprise modeling in various fields; nevertheless, deficiencies still exist in tools and methods for capturing complex business processes. In this context, the Architecture of Integrated Information Systems (ARIS) is a system for development and modeling that has been used as a first step in developing a business process model. This paper examines ARIS by contrasting it with a newly proposed flow-based diagrammatic method called the Flowthing Model (FM). Results show that FM is a viable tool for application to business process modeling.