• Journal of Digital Contents Society
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• v.14 no.4
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• pp.463-469
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• 2013

The set-based POI search algorithm showed better performance than the existing hard matching search when inaccurate queries are entered. In the set-based POI search algorithm, however, there is a problem that can't classify duplicate characters within a record. This is due to it's 'set-based' search property. To solve this problem, we improve the existing set-based POI search algorithm. In this paper, we propose and implement an improved set-based POI search algorithm that is able to deal duplicate characters properly. From the experimental results, we can find that our technique for duplicate characters improves the performance of the existing set based POI search algorithm.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.44 no.5
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• pp.12-19
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• 2007

This paper presents an ASIP(Application Specific Instruction Set Processor) for implementation of H.264/AVC, called VSIP(Video Specific Instruction-set Processor). The proposed VSIP has novel instructions and optimized hardware architectures for specific applications, such as intra prediction, in-loop deblocking filter, integer transform, etc. Moreover, VSIP has hardware accelerators for computation intensive parts in video signal processing, such as inter prediction and entropy coding. The VSIP has much smaller area and can dramatically reduce the number of memory access compared with commercial DSP chips, which result in low power consumption. The proposed VSIP can efficiently perform in real-time video processing and it can support various profiles and standards.

• Journal of Technology Innovation
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• v.24 no.4
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• pp.193-219
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• 2016

We examine how combinations of key factors affecting healthcare user innovation vary by innovation stages from idea generation through R&D to commercialization and venturing using a fuzzy-set Qualitative Comparative Analysis (fsQCA) of thirty Korean cases in the healthcare field. Our empirical analysis shows that well-functioning innovation network and easy resource acquisition facilitate ideation of radical user innovation. However, technological capability and governmental support are crucial to make a shift to R&D as well as commercialization stages. Differently, incremental user innovation depends heavily on technological capability of users. Our analysis can provide policy makers as well as corporate innovation mangers with a strategic framework for boosting user innovation along three stages.

• Journal of KIISE:Databases
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• v.30 no.4
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• pp.420-428
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• 2003

XML is a data-oriented language to represent all types of documents including web documents. By means of the advent of XML-based document generation tools and grow of proprietary XML documents using those tools and translation from legacy data to XML documents at an accelerating pace, we have been gotten a large amount of differently-structured XML documents. Therefore, it is more and more important to retrieve the right documents from the document set. But, previous works on XML have mainly focused on the storage and retrieval methods for a large XML document or XML documents had a same DTD. And, researches that supported the structural difference did not efficiently process path queries on the document set. To resolve the problem, we suggested a new inverted index mechanism using RDBMS and proved it outperformed the previous works. And especially, as it showed the higher efficiency in indirect containment relationship, we argues that the index structure is fit for the differently-structured XML document set.

• Journal of Digital Convergence
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• v.10 no.6
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• pp.17-22
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• 2012

The technological innovation of IT industry is the competitive tool for them to survive in the environment of an intensive competition. This technological innovation is critical in the survival of firms, but various factors should be considered to embody technological innovation success. This paper aims to identify the determinant factors of the outcome which influence the technological innovation based on the IT industry, and set up a model for measuring technological innovation success. A hypothesis was established for the impact relation between technological innovation success and government support level, which was verified through the logistic regression analysis. In conclusion, in terms of government support, IT manufacturing companies to the success of product innovation, technology development(R&D) and commercialization of direct support is needed for the financial support. And, the success of process innovation is accomplished through manpower training of technical personnel.

• Trans-
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• v.2
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• pp.59-73
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• 2017

It was after mid 1990s that convergence of art and technology had become a critical issue and governments set new support system for its enrichment. Since then, the government continues to expand support programs to extend integration of art, culture and other genre including technology because nexus, convergence has regarded important competitive factors in cultural policy. The concept of convergence and complexation in culture and art has been a very attracting issue since it appeared and accordingly various policies are supported. However, there are still numerous issues and problems to be solved along with discussion. This paper summarizes government policies to support convergence and complexation of culture and art in Korea and overseas and looks into their trends and cases and then suggests development of future policies and supporting businesses.

• Proceedings of the Korea Association of Information Systems Conference
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• 1997.10a
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• pp.91-103
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• 1997

본 연구에서는 인증기관의 필요성과 기능, 인증기관이 갖추어야 할 요건, 미국을 비롯한 인터넷 상거래가 활성화되어 가는 몇몇 나라에서의 인증기관에 대한 사례, 신용카드 를 지불수단으로 사용하여 안전한 전자상거래를 지원하는 SET(Secure Electronic Transaction) 표준에서의 인증기관의 구성 예에 대하여 분석해 보기로 한다. 또한 본 연구 에서는 이들 사례를 토대로 신뢰할 수 있는 웹공간을 구성하여 우리 나라에서의 인증기관 구성 방안에 대하여 고찰하고자 한다.

• Proceedings of the CALSEC Conference
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• 2001.08a
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• pp.305-312
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• 2001

1999/10∼2000/09 : INGECEP(Integrated next generation electronic commerce environment Project) 2000. 10 : 제22차 APEC TEL 회의 -〉 INGECEP 종료 보고 -〉 B2B 부문으로의 협력 확대 및 MP간 연동의 필요성을 제기함 200.12 : 국제 B2B 상호호환성 연구 국내 W/G 결성 2001.1 : 국제B2B 상호호환성 연구 국제 W/G 결성 2001 1∼ : "Agent 기반의 국제간 B2B 상호 운용 모델 개발"사업(정보통신부 국가 과제)수행 중

• Proceedings of the IEEK Conference
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• 2003.07d
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• pp.1343-1346
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• 2003

상거래와 통신을 위한 주된 매개체로써 등장한 인터넷 뿐 아니라 새로이 대두되는 다양한 유무선 네트워크 환경, 그리고 정보 저장에 있어서 암호화 알고리즘은 보안의 중요한 요소로 자리잡고 있다. 본 논문에서는 대칭 및 비대칭 암호화 알고리즘을 가속시키기 위한 암호화 프로세서의 명령어와 해당 Functional Unit 을 제안하였다. 현재 암호화 알고리즘을 가속시키기 위한 방법으로 사용되는 주문형 반도체(ASIC)는 알고리즘 가속 속도는 빠르지만, 새로운 암호화 알고리즘을 지원할 수가 없고, 지원하는 알고리즘을 사용하지 않는 경우 비효율성을 야기한다. 또한 범용프로세서는 다양하고 새로운 암호화 알고리즘을 지원할 수 있지만 암/복호화 가속속도가 느리다. 이는 암호화 알고리즘이 범용 프로세서에서는 지원하지 연산을 주로 사용하기 때문이다. 따라서 이 논문에서는 대칭 및 비대칭 암호화 알고리즘의 주된 연산을 분석하고, 각각의 연산을 가속시키기 위한 명령어 집합, 그리고 해당하는 Functional Unit을 제안하여 Programmable 한 암호화 프로세서를 설계하기 위한 토대를 마련한다.

• Annual Conference on Human and Language Technology
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• 1993.10a
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• pp.415-425
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• 1993

본 논문은 국내 표준 한글 부호계와 국제 표준 한글 부호계를 유닉스의 EUC 틀 안에서 수용하는 방안을 제안한다. EUC (Extended Unix Code)는 4 개의 코드 셀 (Code Set)를 지원하는데, 그 중 3 개의 코드 ???V은 멀티바이트를 지원한다. EUC 에서는, ASCII 를 빼고는 모두 MSB (most significant bit) 가 1 이어야 한다. 이러한 제약 조건 아래서, KSC 5601 완성형 한글 부호계, 두 바이트 조합형 한글 부호계, 그리고 1992 년에 국제 표준으로 확정된 ISO 10646 의 새로운 조합형과 완성형 소리마디를 EUC 틀안에서 종합적으로 지원하는 방안을 검토해 본 결과, 짧게는 새로운 조합형과 KSC 5601을 지원하되, 길게는 새로운 조합형으로 나가는 것이 바람직하다는 결론을 얻었다.