• Journal of the Institute of Electronics Engineers of Korea TC
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• v.43 no.2 s.344
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• pp.49-55
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• 2006

This paper describe the most advanced database management system for the mobile number portability(MNP) in the world The database management system can process the procedure of porting_out and porting_in in 30 minutes and it is the shortest time in the world. The MNP DB management system consists of two functional blocks, one is for the call processing system and the other is for the management of subscriber of MNP. The hardware and processing algorithm are presented in this paper. The DB for call processing is located at each mobile operator and be called local number portability database (L-NPDB). The DB for the management of subscriber of MNP consist of L-NPDB and master database which is located at the Korea telecommunications operators association(KTOA). The hardware database system for MNP consists of the interconnection system of master-NPCDB (NP customer database, M-NPCDB), local-NPCDB, M-NPDB and L-NPDB. The master database is interconnected to the local database through dedicated line and can process any MNP service in real time. The presented MNP structure in this paper has been implemented in Korea and became the most effective and advanced DB management system for MNP in the world.

• Journal of the Korean Association of Geographic Information Studies
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• v.5 no.2
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• pp.69-80
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• 2002

GIS is essential to regional development and management in informatization age. But utilization of GIS in Korea remains still elementary area of automated mapping or facility management. In this paper, we suggest executable principles that are able to enhance and improve the efficiency of regional development affairs using GIS DB. In order to accomplish the role of planning support tool, GIS DB have to be plentiful geographic contents. Metadata DB, user-friendly application interface and compatibility of data between the public and the private must be constructed in GIS DB. And geographic information should be shared between the public and the private.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.39C no.8
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• pp.716-721
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• 2014

This paper proposes how to prevent of vulnerability from IP address attack of Oracle DB by C program environments. An attacker may try to login DB by connectng remote IP address. Recently an attacker use foreign IP address and try to connect to DB using known DB account. Therefore, DB data is frequently disclosed. I propose a new idea that develops specific IP address blocking module in C program in the Oracle DB. By this module, we can use the Oracle DB safely.

• The Journal of the Korea Contents Association
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• v.18 no.2
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• pp.262-268
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• 2018

It is essential to build a integrated database (DB) to grasp the present status and various analysis of the economic, social and cultural sectors of local governments and to provide various inquiries on the status data of the local governments according to the purpose of analysis. This study proposed a design method of the integrated DB which can support the inquiry and analysis of the data by the local government. The integrated DB should cover a wide range of heterogeneous data on the economic, social and cultural activities of local governments, and it is necessary to design a schema that can integrate the entire data considering differences between local governments and data elements. The data should be structured in accordance with the characteristics, and it should be possible to inquire related data comprehensively through the search through the keywords. In addition, data retrieval and downloading functions are indispensable for the researcher to easily retrieve data necessary for research purpose and to download and modify data for analysis.

• KIPS Transactions on Software and Data Engineering
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• v.11 no.4
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• pp.157-162
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• 2022

Today, most data is stored in a database (DB). In the DB environment, the users requests the DB to find the data they wants. Similarity Query has predicate that explained by a similarity. However, in the process of processing the similarity query, it is difficult to use an index that can reduce the range of processed records, so the cost of calculating the similarity for all records in the table is high each time. To solve this problem, this paper defines a lightweight similarity function. The lightweight similarity function has lower data filtering accuracy than the similarity function, but consumes less cost than the similarity function. We present a method for reducing similarity query processing cost by using the lightweight similarity function features. Then, Chebyshev distance is presented as a lightweight similarity function to the Euclidean distance function, and the processing cost of a query using the existing similarity function and a query using the lightweight similarity function is compared. And through experiments, it is confirmed that the similarity query processing cost is reduced when Chebyshev distance is applied as a lightweight similarity function for Euclidean similarity.

• The Journal of the Acoustical Society of Korea
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• v.16 no.4
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• pp.35-41
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• 1997

Speech database is an indispensable part of speech research. Speech database is necessary to use in speech research and development processes, and to evaluate performances of various speech-processing systems. To use speech database for common purpose, it is necessary to design utterance list that has all the possible phonetical events in minimal number of words, and is independent of tasks. To meet those restrictions this paper extracts PBW set from large text corpus. Speech database that was constructed using PBW set for utterance list and its properties are described in this paper.

• Genomics & Informatics
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• v.9 no.4
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• pp.197-199
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• 2011

The biological interpretation of two-dimensional (2D) gel electrophoresis experiments is a key step toward understanding the functions of biological systems. We here present a web-based integrated database, called 2DSpotDB, for the management of proteome data derived from several pathogens. The 2DSpotDB was established as a part of the management of a pathogen proteome project at the Korea National Institute of Health. The goals of the 2DSpotDB implementation are to store and define important pathogen genes, retrieve information obtained by 2D polyacrylamide gel electrophoresis and mass spectrometry, and create an integrated system to provide pathogen proteome information for biological scientists. This database currently contains 14 gels and information on 387 protein spots, among which 329 proteins were identified and annotated.

• Journal of Korean Society of Archives and Records Management
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• v.21 no.1
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• pp.249-255
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• 2021

The Korea Democracy Foundation's archives offer its collection of records about Korean democratization movements through "Open-Archives," allowing users to read and use them conveniently. One particular article aimed to promote an overall understanding of its photo database to offer more promising services through the "Open-Archives." Similarly, many different archives hold photographic records, but they have difficulty releasing them to the public. Therefore, the present study introduced the case of Korea Democracy Foundation's project of building a photo database for Tony Chung in 2019-2020 to improve its establishment process, significance, and future tasks.

• Digital Contents
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• no.7 s.14
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• pp.18-26
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• 1994

한국데이터베이스진흥센터와 조선일보사가 주최한 '제2회 DB산업활성화를 위한 세미나'가 6월 14일 오후 한국프레스센터에서 350여명이 참석한 가운데 개최되었다. 이날 세미나는 각계 전문가들이 DB표준화 추진전략 및 내용, 데이터베이스와 지적 재산권(IPR), 정보공개법의 도입절차, 멀티미디어DB 구축 등에 대해 주제를 발표하였다. 이번호에는 세미나 발표내용을 요약하여 게재하였다.

• Digital Contents
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• no.4 s.143
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• pp.101-101
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• 2005

한국데이터베이스진흥센터는 제니시스 기술과 공동 주관, 한국CA 후원으로 3월 17일 한국과학기술단체총연합회 대강당에서 ‘데이터 모델링 및 DB설계 핵심 기법 30題세미나’를 개최했다. 데이터 모델링 및 DB설계를 주제로 한 이 세미나에서는 EA도구의 이해 및 전략적 적용, 데이터 모델링 도구를 통한 활용사례 등 다양한 DB 실무 기법을 다뤘다.