• Journal of KIISE:Computing Practices and Letters
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• v.10 no.3
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• pp.251-258
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• 2004

The XMT standard is MPEG-4 Scene Description of textual format. It can be utilized to edit the audio/video media for broadcasting and develop the user oriented media contents. This paper proposes XMT authoring system that supports exchange among contents in various presentation environment. The XMT authoring system creates two levels of textual syntax and semantics: XMT-$\alpha$ format and XMT-$\Omega$ format. Because XMT-$\alpha$ and XMT-$\Omega$ have different expression method about an object, the authoring tool offers interface for them. the authoring tool offers interface for them. Also, it defines interior data structure that can support two file formats, and offers the function that transforms XMT-$\alpha$ into BIFS and transforms XMT-$\Omega$ into SMIL or XMT-$\alpha$. It offers interoperability among multimedia data in various environment that is XMT's characteristic.

• Proceedings of the Korea Contents Association Conference
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• 2006.05a
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• pp.462-465
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• 2006

Now a days the banks, with a wide spread of credit transaction practice in every business, offer better services to their customers, while the automation of banking is being made more rapid progress in th light of efficient banking service. For example, it is true that the automation of cash payment for customers goes on its progress and the competition between companies is getting more serious. Lately the banks that pursue "Banking Automation System" expand distribution of cash dispenser for the better electronic computer service and for the better service for their customers in quality. Therefore the makers producing "CD" accelerate their development of CD in various ways in order to secure M/S as the leading group of th field. CD, a kind of an automatic paying, is being used generally, and has various functions and its design is getting more compact than ever. Under this situation, I studied more trustworthy and convenient CD design suggestions in the way of case study on the basis of the process of developing CD and I suggest the better way of developing the design of CD in the future.

• Journal of the Korean Society for information Management
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• v.24 no.2
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• pp.89-104
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• 2007

This research attempts to give a personalized recommendation framework in large-sized music contents environment. Despite of existing studios and commercial contents for recommendation systems, large online shopping malls are still looking for a recommendation system that can serve personalized recommendation and handle large data in real-time. This research utilizes data mining technologies and new pattern matching algorithm. A clustering technique is used to get dynamic user segmentations using user preference to contents categories. Then a sequential pattern mining technique is used to extract contents access patterns in the user segmentations. And the recommendation is given by our recommendation algorithm using user contents preference history and contents access patterns of the segment. In the framework, preprocessing and data transformation and transition are implemented on DBMS. The proposed system is implemented to show that the framework is feasible. In the experiment using real-world large data, personalized recommendation is given in almost real-time and shows acceptable correctness.

• Journal of Korean Society of Steel Construction
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• v.28 no.3
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• pp.163-171
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• 2016

For railway bridges, serviceabilities such as passenger comfort and train riding safety are important design requirements as well as the structural safety of the bridge. In this paper, dynamic responses of a steel box girder bridge by actual passing trains were measured and analyzed by probabilistic method. Deflections and accelerations data at center of side span were collected for about a month by various types of actual passenger and freight trains. Effects by axle weights, types of trains were analyzed. 100 and 200 years maximum values were estimated by Gumbel probability paper and compared with corresponding requirements in the current design code. Except for some cases of accelerations, estimated values were well below the criteria and exceedance probabilities were very low. More data for longer term and other types of bridges are needed to perform comprehensive analysis on the serviceability of railway bridges.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.39 no.12
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• pp.1115-1123
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• 2011

This paper proposes an image processing algorithms for detection and tracking of aerial vehicles in short-range. Proposed algorithm detects moving objects by using image homography calculated from consecutive video frames and determines whether the detected objects are approaching aerial vehicles by the Probabilistic Multi-Hypothesis Tracking method(PMHT). This algorithm can perform better than simple color-based detection methods since it can detect moving objects under complex background such as the ground seen during low altitude flight and consider the characteristics of vehicle dynamics. Furthermore, it is effective for the flight test due to the reduction of thresholding sensitivity against external factors. The performance of proposed algorithm is verified by applying to the onboard video obtained by flight test.

• Korean journal of communication and information
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• v.50
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• pp.121-142
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• 2010

Can law be combined with television entertainment programs? This paper explores the ways in which law systems and law culture are reflected in and reflect the television legal series. TV legal series, such as legal dramas and infotainment shows, provide platforms for the audiences, who otherwise have few opportunity in real life, to engage with legal systems in societies. Adopting loosely dramatized reality programs, these legal series not only entertain and inform audiences but also educate citizens. This paper combines analyses of theoretical debates on law and television with analysis of TV text. The result shows that , dramatized enactment based on true stories and criminal cases, may have an important ideological role in which fictionalized dramas mask the hard realities and authoritative legal systems. By doing so, TV legal shows play their roles not as mere symbolic representation but as powerful institutions that construct the image of law and reality.

• Journal of Digital Convergence
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• v.11 no.4
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• pp.25-33
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• 2013

In this paper, various definitions of IT Governance and its elements are reviewed. It seems that generally, there is no big difference in definitions and the elements of IT Governance among researchers. However, it is found that some variables which are not appropriate for its definition were used in many IT Governance research. It is also found that IT Governance research in foreign countries have been focused on structure, process, and relational mechanism. I think that the primary goal of IT Governance should be building an effective IT management system. If desirable structure and principles for IT management are established and observed strictly, we can expect desirable behavior in IT management. As a result, expected outcomes and benefits through IT investment could be possibly realized. Therefore, IT Governance research should be focused on building IT Governance systems. This paper suggests a framework for the future IT Governance research.

• Journal of Digital Convergence
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• v.16 no.4
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• pp.335-342
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• 2018

I do not think that the role of jewel case in modern society is simply to perform the role of storing and storing contents. Depending on the circumstance and environment, it may show some special performance with its contents. In order to obtain such a result, So I came to think about a new type of case design and wanted to find the starting point in the cultural contents which is the mainstream of modern society. I have focused on 'story' of many cultural prototypes. and adopted 'Heungbujeon', a classical literature which can share case and image, and popular recognition. After the design process, I made sample. so the research on the fusion of cultural contents can be both creative and popular. I think it can be another development direction of modern craft.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.15 no.2
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• pp.237-249
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• 2002

The wall system that is composed only of reinforced concrete walls and slabs is adopted on many high-rise apartment buildings recently constructed. In the apartment buildings, a shear wall may have one or mote openings for functional reasons. Many researches on the analysis of shear wall with openings were performed. But, some restrictions prevent those research results being applied to practical analysis and design procedure. It is necessary to use subdivided finite elements lot accurate analysis of the wall system with openings. But it would cost tremendous amount of analysis time and computer memory if the entire building structure is subdivided into a finer mesh. An efficient analysis method which can be used regardless of the number, size and location of openings is proposed in this study. The analysis method uses super element, matrix condensation technique and fictitious beam technique. Analyses of example structures having various types of openings were performed to verify the efficiency of proposed method. It was confirmed that the proposed method have outstanding accuracy with drastically reduced time and computer memory from the analyses of example structures.

• Journal of the Korean Chemical Society
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• v.59 no.5
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• pp.445-453
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• 2015

In 2005, descriptive assessment was introduced to increase students’ higher mental ability like problem-solving ability and creativity. Every year the ratio of descriptive assessment increases and it is regarded as an alternative evaluation to a multiple-choice item which measures simplicity knowledge. Externally the descriptive assessment took a root in school, but we can’t say definitely that it meets its original goal. In this paper, science descriptive assessment items of 5 middle schools in Gyeonggi-do were analysed; examiners was interviewed about how well they understood the characteristic of the assessment items. According to the analysis, characteristic of the items are ① unequal distribution of unit, ② difference of item’s type by unit, and ③ disappearance of measuring higher mental ability. It is considered that there are several factors of these characteristic - the lack of teachers’ ability to make assessment item; understanding of assessment instrument. These factors can be explained by the lack of assessment expertise. So the society’s effort is needed to raise teacher’s ability for the descriptive assessment.