KJC Korea
Journal Central

Era of large volumes of data that data increases exponentially has arrived. This is because the holdings of smart devices per use and one of the social services has increased. Regardless of the development costs and the importance of scale calculation of precise software in the early stages of development in big data project management, cost estimation study reflects the big data environment was not nearly done. In this study, for an attempt to overcome these limitations, we have proposed a FP method of applying fuzzy logic. The proposed method in this paper is to reflect the actual size of the components of the FP, it is possible to correct cost estimation. Only the level FP value associated with an increase(decrease) in the boundary value increases(decreases), it is possible to minimize the ambiguity even ripple effect FP during the early stages of development. Fuzzy FP method proposed in this study, it is possible to calculate the appropriate cost for large-scale software in big data environment.

This paper presents an effective system to measure and compare similarity between Microsoft Windows executable files. When a user inputs two target binary programs in the web interface, the system computes the similarity between them and shows the results. We currently implement four algorithms (modules) for measuring similarity of Windows executable files, and a user can obtain the similarity computed using each algorithm. Our system also provides an integrated similarity measure that quantifies the similarity between two files using the four algorithms at the same time. For the integrated similarity measure, a user can assign a weight for each algorithm. Since we develop each algorithm as an extensible module, it is easy to improve an algorithm or add a new one.

In case of conflict on the IT device product, it would be used the source code to verify the ownership. but it is general things for illegal user not to submit his own code for shielding them. On the embedded system, it is figured out for the device to have kernel as Operating system and application program with any languages. It is hard to verify these system which has OS and app in general approach on illegal usage. There are many difficulties on analisys as the difference to algorithm and language and operating system, especially comparision result can not be guaranties by the open source on Linux OS. In this paper, we estimated the comparision result with whole kernel source code.

We propose a Smart Grid Interoperability Process Assessment Model(SG-iPAM) based on ISO/IEC 15504. This model consist of process and capability dimensions. Seventeen Processes and three capability levels are defined with sub-constraints and specified by SGIP(SmartGrid Interoperability Pannel)’s reference model.

Mobile IPv6 function in the OPNET shows quite a long handover delay and lots of packet transmission errors. The reason is that relatively small-sized beacons can be successfully received in some border area where the longer data packets can not be transmitted because the longer in packet size, the higher in transmission error probability in wireless communication. New scan procedure will not start before a mobile node goes far away from the AP enough to occur the beacon reception error. In this paper, the modified WLAN simulation model is developed to improve the handover performance. In the developed WLAN model, new scan procedure starts when the number of beacons received successfully but with the power less than the designated threshold exceed the predefined threshold.