• Industry Promotion Research
• /
• v.8 no.4
• /
• pp.177-186
• /
• 2023

Modern society is operated based on the internet, wireless networks, and digital devices to the extent that it is called a digital society. In particular, as most of financial transactions, information movement, and commercial activities are based online, various social problems and side effects related to this are increasing rapidly. Representative examples include industrial espionage activities and leakage of industrial technology, and social problems such as illegal goods trade such as drugs using online and online gambling are increasing to a serious level. These digital-based social problems cannot be solved only by the activities and capabilities of judicial institutions such as police and prosecutors. Now that the private investigation market is open, active intervention using them is necessary. To this end, it is necessary to actively cultivate private investigator's ability to investigate and collect evidence in relation to digital social and criminal problems. In addition, each private investigation education institution or association should actively invest and research this.

• The Journal of the Convergence on Culture Technology
• /
• v.10 no.4
• /
• pp.639-644
• /
• 2024

Recent developments in the use of drones on battlefields, extending beyond reconnaissance to firepower support, have greatly increased the importance of technologies for early automatic drone identification. In this study, to identify an effective image classification model that can distinguish drones from other aerial targets of similar size and appearance, such as birds and balloons, we utilized a dataset of 3,600 images collected from the internet. We adopted a transfer learning approach that combines the feature extraction capabilities of three pre-trained convolutional neural network models (VGG16, ResNet50, InceptionV3) with an additional classifier. Specifically, we conducted a comparative analysis of the performance of these three pre-trained models to determine the most effective one. The results showed that the InceptionV3 model achieved the highest accuracy at 99.66%. This research represents a new endeavor in utilizing existing convolutional neural network models and transfer learning for drone identification, which is expected to make a significant contribution to the advancement of drone identification technologies.

• Journal of Internet Computing and Services
• /
• v.15 no.3
• /
• pp.117-124
• /
• 2014

This paper studies on introduction of online education to provide opportunities for spreading university-level program by analyzing perception of high school students and teachers. The university-level program can be defined as the fulfillment of learning needs and the value offer of excellence education for outstanding high school students who want to improve their potential capabilities. For the study, a survey was conducted at high school students and teachers. As the result of the survey for high school students, the efficiency of education was the most important factor for the university-level program. The order of next important factors was the aid to entering university, the method of education, the satisfaction, and the recommendation of others. The result of high school teacher indicated that the efficiency of education was the most important factor as the high school students. The order of next important factors by high school teachers was the satisfaction, the aid to entering university, and the method of education. An activation of the university-level programs can be spread by analyzing the results of the survey. With the introduction of online education for the university-level program can conclude the guarantee of the right of studying and the reduction of education gap. This paper proposed an online education for the university-level program to guarantee the right of studying and to reduce the education gap.

• Journal of Internet Computing and Services
• /
• v.17 no.4
• /
• pp.95-113
• /
• 2016

Personal information processing works, including resident registration number is common to be consigned by IT specialized company due to high level expertise and tremendous cost. The accident related to personal information is increasing and most of accidents are caused by the consignee's leaking information. According to the Inspection of personal information protection and the management level diagnosis of personal information protection, public Institutions need to build the consignee's accident prevention and personal information management system as soon as possible. In this paper, the efficient enhancement ways for the personal information protection is studied. We analyze the law of business consignment and select basic management items related with personal information protection, and propose a analysis scheme for management level of personal information protection and a enhancement scheme for management system of personal information protection. This paper suggests consignee's management system of personal information protection for the enhancement way and the three Strengthening ways in law. To compose the a enhancement scheme for management system of personal information protection, we conduct questionnaire survey to 30 consignees(IT maintenance, notice printing, call center, welfare center) related to typical tasks of public organizations, present reference for this scheme, and execute verification of this scheme by focus group interview of consignor and consignee.

• The KIPS Transactions:PartC
• /
• v.15C no.6
• /
• pp.573-586
• /
• 2008

The improved performance and miniaturization of computer and the improvement of wireless communication technology have enabled the emergence of many high quality services. Among them multicast services are receiving much attention and their usage is increasing due to the increase of Internet multimedia services such as video conference, multimedia stream, internet TV, etc. Security plays an important role in mobile multicast services. In this paper, we proposed a secure multicast protocol for a hierarchical micro-mobility environment. The proposed secure multicast protocol provides security services such as authentication, access control, confidentiality and integrity using mechanisms including symmetric/asymmetric key crypto-algorithms and capabilities. To provide forward/backward secrecy and scalability, we used sub-group keys based on the hierarchical micro-mobility environment. With this security services, it is possible to guard against all kinds of security attacks performed by illegal mobile nodes. Attacks executed by internal nodes can be thwarted except those attacks which delete packet or cause network resources to be wasted. We used simulator to measure the performance of proposed protocol. As a result, the simulation showed that effect of these security mechanisms on the multicast protocol was not too high.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.14 no.2
• /
• pp.23-34
• /
• 2014

Though a dozen of different software life cycle models are suggested, there is no universal model which can satisfy all the characteristics of software. Organizations mix and match different life cycle models to develop a model more tailored for their systems and capabilities. We suggest overlapped-concurrent development life cycle model that is more suitable in various software development environment. Firstly, we divided the development process into abstract and implementation stage. Abstract stage is from software concept phase to detailed design starting time, and implementation stage is from detailed design phase to system testing phase. Next, the abstract stage introduced the overlapped phase concept that begins the next phase when the step is completed 20% by applying pareto's law. In the implementation stage, we introduced the concurrent development which the several phases are performed some time as when one use-case (UC) is completed the next development phase is started immediately. The proposed model has an advantage that it can reduce the inefficiency of development resource greatly. This model can increase the customer satisfaction with a great product at a low cost and on a short schedule. Also, this model can contribute to increase the software development success rate.

• Journal of Internet Computing and Services
• /
• v.11 no.2
• /
• pp.61-72
• /
• 2010

This paper addresses the problem of moving object localization using Ultra-Wide-Band(UWB) range measurement and the method of location accuracy improvement of the indoor moving object. Unlike outdoor environment, it is difficult to track moving object position due to various noises in indoor. UWB is a radio technology that has attention for localization applications recently. UWB's ranging technique offer the cm accuracy. Its capabilities for data transmission, range accurate estimation and material penetration are suitable technology for indoor positioning application. This paper propose a positioning algorithm of an moving object using UWB ranging technique and particle filter. Existing positioning algorithms eliminate estimation errors and bias after location estimation of mobile object. But in this paper, the proposed algorithm is that eliminate predictable UWB range distance error first and then estimate the moving object's position. This paper shows that the proposed positioning algorithm is more accurate than existing location algorithms through experiments. In this study, the position of moving object is estimated after the triangulation and eliminating the bias and the ranging error from estimation range between three fixed known anchors and a mobile object using UWB. Finally, a particle filter is used to improve on accuracy of mobile object positioning. The results of experiment show that the proposed localization scheme is more precise under the indoor.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
• /
• v.12 no.4
• /
• pp.73-84
• /
• 2017

This study started from searching for cause and solution of the part where online shopping malls are easy to start but easy to choose. It is thought that online shopping mall business has sufficient merit in the situation of Korea which is rapidly spreading internet, and it started from the opinion that if it can strengthen the characteristics of successful business start-ups, it can increase the rate of failure and reduce the failure rate. Internet shopping mall education experts gathered and discussed in depth what is the way in which mall entrepreneurs can maintain business continuously. As a result of summarizing the opinions of many shopping mall experts, we concluded that the marketing capabilities of each company should be strengthened. In addition, the importance of entrepreneurship education has emerged. In particular, it has been concluded that strengthening the competence of marketing mix is an important factor that determines the success and failure of the company. In this case, the researchers started to study this question with the question of what factor of marketing 4P has the greatest influence on the success of start-up. I also decided to study the impact of entrepreneurship education. As a result of this study, marketing mix ability as an independent variable has a significant positive effect on the success of entrepreneurship. Especially, the effect of product mix among 4Ps is significant for successful entrepreneurship.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.11 no.4
• /
• pp.147-156
• /
• 2011

Though a dozen of different software life cycle models are suggested, there is no universal model which can satisfy all the characteristics of software. Organizations mix and match different life cycle models to develop a model more tailored for their systems and capabilities. We suggest overlapped-concurrent development life cycle model that is more suitable in various software development environment. Firstly, we divided the development process into abstract and implementation stage. Abstract stage is from software concept phase to detailed design starting time, and implementation stage is from detailed design phase to system testing phase. Next, the abstract stage introduced the overlapped phase concept that begins the next phase when the step is completed 20% by applying pareto's law. In the implementation stage, we introduced the concurrent development which the several phases are performed some time as when one use-case (UC) is completed the next development phase is started immediately. The proposed model has an advantage that it can reduce the inefficiency of development resource greatly. This model can increase the customer satisfaction with a great product at a low cost and on a short schedule. Also, this model can contribute to increase the software development success rate.

• Journal of KIISE:Computing Practices and Letters
• /
• v.8 no.1
• /
• pp.71-81
• /
• 2002

The lack of specialties of the existing commercial web search systems stems from the fact that they have no capabilities to extract and gather the meaningful information from each information domain they cover. We are sure, however, that the necessity for the information integration system, not just search system, will be likely to become larger in the future. In this paper, we propose a design and implementation of an information integration system called TIC(target information collector). TIC is able to extract meaningful information from a specific information area in the internet and integrate them for the commercial service. We also show the evaluation results of our implementation. For the experiments we applied our TIC to the international procurement information area. The international procurement information is publicly and freely announced by each government to the world. To automatically extract common properties from the related source sites, we adopt information pointing technique using inter-HTML tag pattern parsing. And through the information integration framework design, we can easily implement a site-specific information integration engine. By running our TIC for about 8 months, we find out it can remove considerable amount of the duplicated information, and as a result, we can obtain high quality international procurement information. The main contribution of this paper is to present a framework design and it's implementation for extracting the information of a specific area and then integrating them into a meaningful one.