Data hiding is one of the most important ways to achieve secure data transfer. Most spatial data hiding methods will make the host image distortion and the embedded data can be detected by stenography analysis. A novel data hiding method is proposed in this paper. This method first disturbs the raw critical data, and then embedded them only into areas of color changes much in the host image. Experiments show that this method can reduce the distortion of the host image and decrease the appreciability of the embedded data.

We study the problem of traffic lights scheduling in a dynamic three-dimension intersection. In this paper, an intelligent traffic lights schedule approach is proposed to optimize the traffic lights sequence according to traffic data detected and predicted in real-time, e.g. traffic volume, delays and traffic density. Evaluations have been conducted to compare the performance in terms of traffic throughput, and the result depicts that our intelligent approach can obtain better performance.

We research the issue of traffic signals scheduling, based on the use of real-time traffic information gathered by a wireless sensor network. In this paper, an optimization on traffic signals sequence scheduling has been put forward, which can be achieved based on the instant traffic data collected in the dynamically traffic environment. Afterwards, simulations have been conducted in several scenarios, and show that the proposed approach can achieve better performance in terms of traffic throughput.

University graduate archives are very important to graduates, but for now, there exist a number of problems in archive management, especially in archive dispatching. This paper proposes a web-based graduate archive dispatching management system, and introduces the process of system analysis and design from system modules, system framework and key technologies used in this system. Finally, it summarizes the subsequent directions of deep research and improvement.

Service-Oriented architecture (SOA) has increasingly becoming an architectural evolution as one of the software design principles. This paper proposes an architecture design of an online collaborative agreement signing system based on SOA. The advantages over traditional designs are loose coupling, scalability and flexible combination of services. Web service model of the proposed solution is also described. Electronic seal and digital watermark are discussed as the domain knowledge as well. Sample software based on Windows Communication Foundation (WCF) technology on .NET platform is introduced in the last part of the paper.