• Title/Summary/Keyword: IT Venture

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Analyzing a Class of Investment Decisions in New Ventures : A CBR Approach (벤쳐 투자를 위한 의사결정 클래스 분석 : 사례기반추론 접근방법)

  • Lee, Jae-Kwang;Kim, Jae-Kyeong
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 1999.10a
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    • pp.355-361
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    • 1999
  • An application of case-based reasoning is proposed to build an influence diagram for identifying successful new ventures. The decision to invest in new ventures in characterized by incomplete information and uncertainty, where some measures of firm performance are quantitative, while some others are substituted by qualitative indicators. Influence diagrams are used as a model for representing investment decision problems based on incomplete and uncertain information from a variety of sources. The building of influence diagrams needs much time and efforts and the resulting model such as a decision model is applicable to only one specific problem. However, some prior knowledge from the experience to build decision model can be utilized to resolve other similar decision problems. The basic idea of case-based reasoning is that humans reuse the problem solving experience to solve a new decision. In this paper, we suggest a case-based reasoning approach to build an influence diagram for the class of investment decision problems. This is composed of a retrieval procedure and an adaptation procedure. The retrieval procedure use two suggested measures, the fitting ratio and the garbage ratio. An adaptation procedure is based on a decision-analytic knowledge and decision participants knowledge. Each step of procedure is explained step by step, and it is applied to the investment decision problem in new ventures.

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Quality Evaluation Model for Security of DRM Software (DRM 소프트웨어의 보안성 품질평가 모델)

  • Lee, Ha-Young;Kim, Jung-Gyu
    • Journal of Digital Convergence
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    • v.11 no.5
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    • pp.1-11
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    • 2013
  • To make the DRM technology protect adequately the copy right of digital contents, DRM software should have high quality and no defects when DRM is added to digital contents. It can be a basis for the effective protection of the copyright of digital contents to develop a quality evaluation model of DRM SW. First of all, the security of DRM SW is the most critical quality characteristic that DRM software must have. In this paper, we conducted research on how to measure the quality of security of DRM SW.

A Study on the Antigen Characteristics of Rhodotorula rubra (Rhodotorula rubra의 항원특성에 관한 연구)

  • Kwon, Hyuk-Ku;Lee, Jang-Hoon;Ryeon, Kon
    • Journal of Environmental Health Sciences
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    • v.28 no.5
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    • pp.28-34
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    • 2002
  • Antigenicity of Rhodotrula rubra isolated from pulmonary tissue of pulmonary tuberculosis patients was studied by means of agglutination reaction with R. rubra whole cell antiserum. And the serological reactivity of crude polyfac charide from R. frubra, Candida albicans, Candida tropicalis, Candida, glabrata, and Saccharomyces cerevisiae ATCC 26603 with antiserum to R. rubra whole cell was studied by means of immunodiffusion test. R. rubra showed stationary phase after 48h when it was cultured in GYEP broth. While agglutinogen titer was 1:64 at lag phase, agglutinogen titer was 1 :256 after 20h. After growth of R. rubra on different 11 media, nutritional environment showed similar agglu-tination reartivity. The agglutinogen titer of C. albicans, C. tropicalis, C. giabrata, which were isolated from patient's expectoration, to R. rubra antiserum by means of agglutination reaction were 1:16, respectively. But, Sacch. cervisiae ATCC26603 was negative. Those results were lower than that of R. rubra agglutinogen titer 1:256. As a result of immu-nodiffusion test with crude polysaccharide extracted from cell wall of R. rubra, C. albicans, C. tropicalis, C. glabrata, Sacch. cervisiae ATCC26603, precipitin line was found only with R. rubra, of which antibody titer was 8.

A Study on Standardization of Performance Evaluation for Autonomous Cleaning Robot (자율청소로봇 성능평가 표준화에 관한 연구)

  • Ryu Jae-Chang;Hong Ju-Pyo;Rhim Sung-Soo;Lee Soon-Geul;Park Kwang-Ho
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2005.06a
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    • pp.1054-1059
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    • 2005
  • To support the expansion of the autonomous robot market, the establishment of evaluation standards of the robot performance are essential. In this paper, to venture the standardization of the performance evaluation of the autonomous robot, the authors take the autonomous cleaning robot(ACR) as the initial stepping stone. Recently, the ACR has been being developed and marketed actively in many countries including Korea and it believes to be the fore-runner among various types of autonomous robot products. Standards of the performance evaluation for the ACR could be easily modified and applied to other autonomous robots. This paper formulates and suggests a group of standards for the performance evaluation based on a evaluation platform for the ACR. The newly developed performance evaluation platform has been designed to include all the important aspects of living environments in reality. In the platform the performance of the ACR is measured in terms of mobility, cleaning performance, avoidance of obstruction(safety), and operation noise. A few commercially available ACR products are collected and tested in the evaluation platform and compared against the performance evaluation standards formulated.

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A Study on the Transition of Paris Collection (파리 컬렉션 변천에 관한 연구)

  • Rhee, Nan-Hee
    • Journal of the Korea Fashion and Costume Design Association
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    • v.8 no.2
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    • pp.95-108
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    • 2006
  • The purpose of this study was to analyze the historical change of Paris Collection in relation to the social and cultural environment. Together with the various changes in society, creates fashion, the historical background of the Paris Collections is analyzed from the end of the 19th century until the present. The research method includes analysis entered on data from literature and magazines. From this study, the following conclusions can be reached. 1. Paris Collection is composed of various situations such as the economic aspect, the changing society, the change of the costumes, the change of consumer's consciousness, etc,. 2. The position and role of Paris Collection will be changed in the future. But, there is no alternative. Paris Collection is the best system which we need in our society. 3. Since the level of the planning of the apparel industry becoming raised rapidly, Paris collection tend to avoid the traditional aspect. 4. In order to make good product, good understanding of the historical background need. It must be considered to understand changes such as consumers lifestyles, social trend, etc.

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A Study on the Status in the Availability of Agricultural Policy Financing and the Improvements of It - Espacially on the Supply of Tobacco Production Credit - (농업정책금융(農業政策金融)의 운용현황(運用現況)과 개선방안(改善方案) - 엽연초(葉煙草) 생산 금융지원문제를 포함하여 -)

  • Ryu, Jin Chun
    • Current Research on Agriculture and Life Sciences
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    • v.3
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    • pp.203-218
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    • 1985
  • In Korea, the developmental gap is deep between rural and urban areas in spacial aspect and, or between agricultural and industrial side. So there are much room for improvement in agri. development in national standpoint as well as in individual farmer's level. In this respect, agricultural financing is requisitive to speed up the pace of agricultural development and in result, to contribute to improvement of farm income. By the way, farmers' credit demands are always in excess-demand status and they rely on private money-lenders in the burden of high interest rate. In agricultural financing market, there are two kinds of credit ; institutional credit and non-institutional credit market, that is private money-lending. In institutional credit, there are mutual credit system operating by the primary coops and policy credit system by NACF financed by Government in part. Here, in this paper, I venture to study on the improvements of the policy credit system to increase and activate the supply function of agri. policy credit into farmers to enhance their socio-economic status.

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A Brief Analysis of Amazon and Distribution Strategy

  • Hahn, Yoonah;Kim, Dongho;Youn, Myoung-Kil
    • Journal of Distribution Science
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    • v.16 no.4
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    • pp.17-20
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    • 2018
  • Purpose - The purpose of this paper is to analyze and illustrate Amazon's business strategies and its success in terms of its distribution strategy and business practices. Research design, data, and methodology - This is an analytical case study that examines Amazon's business strategies to demonstrate the importance of technologies to the success and sustainability of its organization. Results - The analysis indicates that the business strategies, including technology, distribution infrastructure, and customer service, are the most vital factor for the success and rise of Amazon, and these strategies have separated Amazon from its competitors in both e-tail and brick and mortar retail industries. Conclusions - Given Amazon's continued growth that came with its constant strive for delivery and cost efficiency, technology innovation, and customer satisfaction, it was inevitable that Amazon would eventually venture into different types of businesses. The previous and current Amazon's business strategies demonstrate that Amazon will continue to focus on developing and implementing new and creative strategies to separate itself from the rest of the retail and e-businesses. Furthermore, retail businesses in the most high-tech countries in the world, including Japan, Korea, and Russia, may have to adopt business strategies that are similar to those of Amazon to maintain their competitiveness.

The Problems and Solutions in the Pilot Test of Electronic Bill of Lading (전자선화증권의 운용실증실험상의 문제점과 해결방안)

  • Choi, Seok-Beom
    • International Commerce and Information Review
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    • v.6 no.3
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    • pp.321-349
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    • 2004
  • Bolero Project initially had the support of TEDIS, and now is a joint-venture between SWIFT and IT Club. After the successful testing of an original pilot project, The Bolero Association was formed in 1995 by a group of interested cross industry companies. A Bolero Bill of Lading replicates the basic functions of a paper-based bill of lading via title registry service and core messaging platform. A Bolero Bill of Lading consists of BBL Text and Title Registry Record. A Tittle Registry Record carries out the function of a document of title and a BBL may be transferred by changing the roles of users in this Title Registry Record. TEDI Project had been conducted from the April 1999 to the September 2000 on the basis of the EDEN Project(Dec.97- Mar. 1999) and International Trade Guidances Project (Nov. 1998-Mar. 1999). Through TEDI Project, the RSP Model was introduced as e-trade solution like Bolero's Solution. The RSP Model Solution will be furnished through TC (Trade Chain) Server and RSP(Repository Service Provider) Server. The purpose of this paper is to study the problems and solutions in the pilot test of electronic Bill of Lading using TEDI's RSP and to promote the introduction of electronic Bill of Lading.

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Microstructure and Magnetic Properties in Fe-Co-B/M Films for Soft Magnetic Underlayer of Perpendicular Magnetic Recording Media (수직자기기록매체용 Fe-Co-B/M 하지연자성층의 미세결정구조 및 자기특성)

  • 공석현;손인환;금민종;최형욱;박용서;김경환
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.17 no.8
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    • pp.888-892
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    • 2004
  • It is necessary to develop soft magnetic layer with high saturation magnetization 4 $\pi{M}_s$ and in-plane magnetic anisotropy field Hk for soft magnetic underlayer of perpendicular magnetic recording media with high signal to noise ratio. Fe-Co-B layer with high 4 $\pi$Ms of about 23 kG deposited on Ni-Fe and Ni-Fe/Si seedlayer exhibited very high in-plane magnetic anisotropy filed Hk of about 280 and 380 Oe, respectively, In-plane XRD studies clarified that the lattice spacing of planes along the easy axis direction was longer than that along the hard axis direction in the Fe-Co-B layers with high Hk. These results indicate that high Hk of Fe-Co-B/Ni-Fe and Fe-Co-B/[Ni-Fe/si] layers were resulted from magnetoelastic anisotropy owing to a residual stress. Moreover, the high Hk in the Fe-Co-B/Ni-Fe layer was maintained until 30$0^{\circ}C$ annealing temperature.

Fire Detection using Color and Motion Models

  • Lee, Dae-Hyun;Lee, Sang Hwa;Byun, Taeuk;Cho, Nam Ik
    • IEIE Transactions on Smart Processing and Computing
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    • v.6 no.4
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    • pp.237-245
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    • 2017
  • This paper presents a fire detection algorithm using color and motion models from video sequences. The proposed method detects change in color and motion of overall regions for detecting fire, and thus, it can be implemented in both fixed and pan/tilt/zoom (PTZ) cameras. The proposed algorithm consists of three parts. The first part exploits color models of flames and smoke. The candidate regions in the video frames are extracted with the hue-saturation-value (HSV) color model. The second part models the motion information of flames and smoke. Optical flow in the fire candidate region is estimated, and the spatial-temporal distribution of optical flow vectors is analyzed. The final part accumulates the probability of fire in successive video frames, which reduces false-positive errors when fire-like color objects appear. Experimental results from 100 fire videos are shown, where various types of smoke and flames appear in indoor and outdoor environments. According to the experiments and the comparison, the proposed fire detection algorithm works well in various situations, and outperforms the conventional algorithms.