• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2008.02a
• /
• pp.143-146
• /
• 2008

인터넷의 발전은 온라인상의 무한한 정보 이용을 가능케 하였다. 인터넷 상의 무한한 정보에는 유익한 정보도 있지만 그렇지 못한 유해한 정보도 있다. 대표적인 유해 정보인 음란물 사이트는 청소년들에게 쉽게 노출되어 심신건강에 악영향을 끼친다. 최근에는 이러한 음란물 사이트를 차단하기 위한 알고리즘 개발이 활발히 진행되고 있다. 본 논문에서는 음란물 사이트 차단을 위해 연구되고 있는 대표적인 알고리즘들의 성능 비료를 통하여 각 알고리즘의 취약점을 보완할 수 있는 새로운 방법론을 제시한다.

• Proceedings of the Korea Contents Association Conference
• /
• 2010.05a
• /
• pp.399-401
• /
• 2010

지식경제사회가 도래함에 따라 특허정보 분석은 지식재산권을 보호하기 위하여 더욱 중요해지고 있다. 특허정보 분석은 축적된 특허 데이터베이스로부터 기업의 연구개발 전략에 필요한 지식을 추출하는 것이다. 이러한 지식을 추출하고 분석 및 전략 수립을 위한 도구가 특허정보 분석 도구이다. 본 논문은 국내외 주요 특허정보 분석 도구에 대한 동향을 파악하고 국내특허 분석 도구의 발전 방향에 대해 고찰하였다.

• Transactions of the Korean Society of Mechanical Engineers
• /
• v.18 no.4
• /
• pp.887-902
• /
• 1994

Within the framework of anisotropic thermoelasticity, the problem of an interlaminar crack in a laminated fiber-reinforced composite subjected to a uniform heat flow is investigated. Under a state of generalized plane deformation, dissimilar anisotropic half-spaces with different fiber orientations are considered to be bound together by a matrix interlayer containing the crack. The interlayer models the matrix-rich interlaminar region of the fibrous composite laminate. Based on the flexibility/stiffness matrix approach, formulation of the current crack problem results in having to solve two sets of singular integral equations for temperature and thermal stress analyses. Numerical results are obtained, illustrating the parametric effects of laminate stacking sequence, relative crack size, crack location, crack surface partial insulation, and fiber volume fraction on the values of mixed mode thermal stress intensity factors.

• The Journal of the Acoustical Society of Korea
• /
• v.23 no.8
• /
• pp.597-601
• /
• 2004

This paper introduces a pre-rejection technique for wireless channel distorted speech with application to automatic speech recognition (ASR) Based on analysis of distorted speech signals over a wireless communication channel. we propose a method to reject the channel distorted speech with a small computational load. From a number of simulation results. we can discover that tile pre-rejection algorithm enhances the robustness of speech recognition operation.

• Proceedings of the KSR Conference
• /
• 2007.05a
• /
• pp.1943-1947
• /
• 2007

The number of people using Seoul metropolitan subway is continually raising as the population and cars keep increasing. But recently, many people have a feeling of anxiety about several problems such as a fire and air pollution. Thus, the purpose of this paper is to propose a method which can improve the customer satisfaction. There are lots of positive and negative factors that influence people. To understand and analyze these factors, we conducted a questionnaire survey of people who usually use subway. From the obtained data, principle component analysis and K-means clustering method were implemented. Finally, for customer satisfaction, the factors which are needed to be concerned or solved are identified using cross-tabulation.

• Proceedings of the KSR Conference
• /
• 2007.05a
• /
• pp.1948-1953
• /
• 2007

Intelligent agent is to decide what customers need on the internet and offer them accurate information. In this paper, the system which can recommend the tourism items in terms of customer's needs is proposed by appling the intelligent agent to railway tourism system. Most of previous agents are focused on price. But, this study proposes the Railway tourism system which offers each customer the best suitable information based on quality of information and reputation. The customer's needs are analyzed through intelligent agent and the information which is suitable for customer's needs is obtained the Artificial Neural Network Model.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.9 no.2
• /
• pp.121-137
• /
• 2013

Now days, firm's technology capability is recognized as important factor to forecast and to evaluate firm's business performance. There are many efforts to develop useful indicators by applying patent information that includes concrete description about technology. Many previous studies analyzed relationship between patent indicators and firm's performance. But they didn't consider time gap between a point of firm's invention activity and a point of firm's performance improvement. They didn't considered a character of industrial fields either. To overcome these limitations, we selected IT industry for target analysis industry. Time-series patent data and financial data from 41 American IT firms between 2000 and 2011 were used to analyze. In this study, We empirically analyzed subsequent effect of patent indicators on firm's business performance by using correlation analysis and regression analysis.

• Journal of The Korean Digital Architecture Interior Association
• /
• v.10 no.3
• /
• pp.47-52
• /
• 2010

This study aims to compare the Malevich's 'non-objectivity' and Mies van der Rohe's 'almost nothing'. K. Malevich who, as a painter, was a pioneer of abstract art and an initiator of Suprematism, was sought an ultimate value of art to non objective world, namely non of consciousness or a world of a non-being, In the same way, 'Mies van der Rohe was also sought for architectural space of non objectivity, as non of objective, being introduced 'less is more' or 'almost nothing' to architectural space.

• Journal of the Korea Institute of Military Science and Technology
• /
• v.8 no.4 s.23
• /
• pp.50-57
• /
• 2005

This paper describes an expert system for soldiers psychology diagnosis. In the field warfare, platoon leaders or company commanders have to diagnose his soldier's condition correctly. The expert systems, a field of artificial intelligence, can be appropriate approach for ill-structured paradigm. This use an UNIK system. This UNIK system is composed of UNIK-FRAME, UNIK-BWD, UNIK-WBI, UNIK-INDUCE and UNIK-Interface. Especially, UNIK-WBI system is very useful to display soldiers psychology diagnosis and so easy to use it. Any leader or commander can easily do this. This paper data is based on DSMIV. Through This expert system, combat power can be kept and accidents be protected.

• The KIPS Transactions:PartA
• /
• v.13A no.5 s.102
• /
• pp.381-386
• /
• 2006

In this paper, we designed and implemented a web-based grid scheduling platform(WGridSP), which can model a system and simulate scheduling scheme in grid computing. WGridSP used GridSim, a grid scheduling toolkit in java-environment, as a tool for simulation and is able to Perform resource modeling, task modeling, algorithm compiling, simulation, and Performance evaluation rapidly in web environment. WGridSP can be applied as a foundation for grid research and can be used to analyze the efficiency of scheduling algorithm.