• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2011년도 추계학술발표대회
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• pp.1154-1155
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• 2011

본 연구에서는 M2M(Machine to machine: 사물 지능 통신) 기반의 URL 동기화 기능을 갖는 멀티미디어 공동작업 환경에서 웹 관련 응용 소프트웨어와 미디어 등의 프로세스(process) 요소들에 대한 오류를 미리 감지하고 오류를 공유하여 웹 멀티미디어 세션에 참여한 참여자 간의 효율적인 의사소통과 상호 협력 환경의 향상을 제공한다. M2M 기반의 오류 동기화 시스템을 이용하여 신속하고 정확하게 오류를 전달하여서 복구하는데 빠르게 대처할 수 있는 시스템을 제안한다.

• 한국멀티미디어학회논문지
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• 제17권10호
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• pp.1182-1188
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• 2014

Recently, the research on database outsourcing has been actively done with the popularity of cloud computing. However, because users' data may contain sensitive personal information, such as health, financial and location information, the data encryption methods have attracted much interest. Existing data encryption schemes process a query without decrypting the encrypted databases in order to support user privacy protection. On the other hand, to efficiently handle the large amount of data in cloud computing, it is necessary to study the distributed index structure. However, existing index structure and query processing algorithms have a limitation that they only consider single-column query processing. In this paper, we propose a grid-based multi column indexing scheme and an encrypted query processing algorithm. In order to support multi-column query processing, the multi-dimensional index keys are generated by using a space decomposition method, i.e. grid index. To support encrypted query processing over encrypted data, we adopt the Hilbert curve when generating a index key. Finally, we prove that the proposed scheme is more efficient than existing scheme for processing the exact and range query.

• 산업공학
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• 제18권2호
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• pp.148-157
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• 2005

The manufacturing industry with Make-to-Order production system is difficult to decide the standard information for the product and the demand is variable to estimate. In this paper, we concerned with the process planning method using data mining in the manufacturing industry with Make-to-Order environment. The subject of our study is the industry transformer plant which is received an diverse order of customer and then produced the product. Currently, process planning method is classified the standard information by hand based on the acquired knowledge through the experience. The standard information stored the various information, such as work sequence, time and so on. This process planning method needs an experts which possesses the field experience for several years. For the product specification which is varied in each order, current process planning method is not efficient due to need many times To solve this problem, we extract the information using data mining process for each processing time, and then construct the knowledge base. We propose a method which is the process planning of the industry transformer product in Make-to-Order environment using the knowledge base.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권10호
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• pp.3419-3437
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• 2022

Anonymization technology is an important technology for privacy protection in the process of data release. Usually, before publishing data, the data publisher needs to use anonymization technology to anonymize the original data, and then publish the anonymized data. However, for data publishers who do not have or have less anonymized technical knowledge background, how to configure appropriate parameters for data with different characteristics has become a more difficult problem. In response to this problem, this paper adds a historical configuration scheme resource pool on the basis of the traditional anonymization process, and configuration parameters can be automatically recommended through the historical configuration scheme resource pool. On this basis, a privacy model hybrid recommendation algorithm for user satisfaction is formed. The algorithm includes a forward recommendation process and a reverse recommendation process, which can respectively perform data anonymization processing for users with different anonymization technical knowledge backgrounds. The privacy model hybrid recommendation algorithm for user satisfaction described in this paper is suitable for a wider population, providing a simpler, more efficient and automated solution for data anonymization, reducing data processing time and improving the quality of anonymized data, which enhances data protection capabilities.

• 한국위성정보통신학회논문지
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• 제10권3호
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• pp.48-52
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• 2015

국내 및 국외 최초 대면적 TSP용 강화 Cover Glass Edge Grinding 공정을 개발하였다. 이를 위해 기존의 Cover Glass Grinding 공정에서 문제가 되고 있는 기술을 중점적으로 연구하여 해결하였고, 생산성 향상과 가공품질을 높이는데도 중점을 두어서 개발하였다. 개발 과정에서는 데모기기의 제작과 운영을 통해 전체 공정 기술을 개발하였다. 개발 결과 강화 Cover Glass Grinding 공정 기술, 영상처리기술, 기구 메카니즘 & 제어 알고리즘 확보하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2003년도 학술.기술논문발표회
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• pp.121-126
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• 2003

Steel frame construction is divided into subsidiary materials with column, beam, girder and bracing. After these are processed in factory for using installing in construction field. These prefabricated furniture is very important in accordance with design drawing about processing and prefabricating. In the case of design process using information transmission in blueprint, omission of material number, processing measure and finishing material, or discordance of each structure drawing and selecting incongruent structural material generated an error in the process of design. These error caused delaying tine and increasing cost and increasing safety accident in the steel-structure work operating process. therefore, design process should consider problem of operating process.

• 한국건축시공학회지
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• 제3권2호
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• pp.111-118
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• 2003

Steel frame construction is divided into subsidiary materials with column, beam, girder and bracing. After these are processed in factory for using installing in construction field. These prefabricated furniture is very important in accordance with design drawing about processing and prefabricating. In the case of design process using information transmission in blueprint, omission of material number, processing measure and finishing material, or discordance of each structure drawing and selecting incongruent structural material generated an error in the process of design. These error caused delaying time and increasing cost and increasing safety accident in the steel-structure work operating process. therefore, design process should consider problem of operating process.

• Korean Journal of Geomatics
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• 제3권2호
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• pp.99-106
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• 2004

In order to meet the users' demand, who needs faster and more accurate data in geographic information, it is necessary to obtain and process the data more effectively. Now more effective data obtainments about geographic information is possible through the development of integration technology, which is applied to the field of geographic information, as well as through the development of hardware and software engineering. With the fast and precise correction and update, the development of integrate technology can bring the reduction of the time and money. To obtain fast and precise geographic information using Aerial Photogrammetry method, it is necessary to develop Airborne GPS/INS integration system, which makes GCP to the minimum. For this reason, this study has tried to develop a system which could unite and process both GPS and INS data. For this matter, code-processing module for DGPS and OTF initializaion module, which can decide integer ambiguity even in motion, have been developed. And also, continuous kinematic carrier-processing module has been developed to calculate the location at the moment of filming. In addition, this study suggests a possibility of using a module, which can unite GPS and INS, using Kalman filtering, and also shows the INS navigation theory.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2009년도 추계학술대회 논문집
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• pp.358-361
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• 2009

The increasing interest in the surface modification technology by the plasma transferred arc overlaying process in the material processing is placing stringent demands on the manufacturing techniques and performance requirements, and the manufacture employs the high quality and efficiency plasma transferred arc overlaying technology. This paper covers recent technical trends of plasma transferred arc overlaying technology including the COMPENDEX DB analysis.

• 한국정보처리학회논문지
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• 제4권9호
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• pp.2289-2298
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• 1997

이 논문에서는 지도 인식을 위한 새로운 접근 방법을 제안하였다. 한 대상체의 인식결과가 다른 대상체의 인식과정에 미치는 영향이 최소화되도록 대상체들간의 구조적 정보에 대한 계층적 모델을 정의하여 이를 기반으로 인식 및 인식결과의 검증을 수행하였으며, 선들간의 관계들을 정의하여 탐색공간을 줄이며 대상체와 연관된 선을 탐색하였다. 또한 대상체들간의 관계를 이용하여 각 대상체의 인식 결과를 판정하고, 오인식시에는 재인식하도록 하였으며 이 과정에서 인식 알고리듬의 매개변수를 변화시켜 수행함으로써 정확한 인식이 수행되도록 하였다. 결과적으로, 선을 찾는 과정에서 탐색공간을 효과적으로 줄이는 효과를 가져왔으며, 구획을 구성하는 선들이 끊어지는 경우에도 블록과 도로를 정확히 인식하는 결과를 얻을 수 있었다.