• Interdisciplinary Bio Central
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• 제4권3호
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• pp.7.1-7.8
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• 2012

With the development of many methods of studying the brain, the field of neuroscience has generated large amounts of information obtained from various techniques: imaging techniques, electrophysiological techniques, techniques for analyzing brain connectivity, techniques for getting molecular information of the brain, etc. A plenty of neuroinformatics databases have been made for storing and sharing this useful information and those databases can be publicly accessed by researchers as needed. However, since there are too many neuroinformatics databases, it is difficult to find the appropriate database depending on the needs of researcher. Moreover, many researchers in neuroscience fields are unfamiliar with using neuroinformatics databases for their studies because data is too diverse for neuroscientists to handle this and there is little precedent for using neuroinformatics databases for their research. Therefore, in this article, we review databases in the field of neuroscience according to both their methods for obtaining data and their objectives to help researchers to use databases properly. We also introduce major neuroinformatics databases for each type of information. In addition, to show examples of novel uses of neuroinformatics databases, we represent several studies that combine neuroinformatics databases of different information types and discover new findings. Finally, we conclude our paper with the discussion of potential applications of neuroinformatics databases.

• 대한음성학회지:말소리
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• 제55권
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• pp.77-91
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• 2005

In this paper, we propose an XML based meta-data specification for industrial speech databases. Building speech databases is very time-consuming and expensive. Recently, by the government supports, huge amount of speech corpus has been collected as speech databases. However, the formats and meta-data for speech databases are different depending on the constructing institutions. In order to advance the reusability and portability of speech databases, a standard representation scheme should be adopted by all speech database construction institutions. ETRI proposed a XML based annotation scheme [51 for speech databases, but the scheme has too simple and flat modeling structure, and may cause duplicated information. In order to overcome such disadvantages in this previous scheme, we first define the speech database more formally and then identify object appearing in speech databases. We then design the data model for speech databases in an object-oriented way. Based on the designed data model, we develop the meta-data specification for industrial speech databases.

• Genomics & Informatics
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• 제6권2호
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• pp.95-97
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• 2008

Many bioinformatics sites have managed local bio-databases, including major databases such as GenBank and PIR with update load. We have developed several programs to monitor the update status of these databases and to FTP them automatically. These programs can be used for maintaining local bio-databases as recent versions and providing up-to-date databases through FTP sites. Currently, the program serves major bio-databases and will extend to accommodate many more bio-databases.

• 한국IT서비스학회지
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• 제18권1호
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• pp.113-130
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• 2019

Data can be considered a core driver of the Fourth Industrial Revolution, and databases are needed to create value by efficiently obtaining, storing and analyzing the data. However, there are currently no adequate valuation methods to handle databases. This study aims first, to understand databases as the subject of valuation and analyze value drivers of databases, and second, to propose a database valuation model based on this finding. To this end, we derive value drivers of databases from the characteristics and value criteria of databases observed in previous studies. Based on survey data from 396 database service firms we verify the value drivers through linear regression analysis. We find that the annual growth rate in database capacity and the data types positively affect sales of databases and offer ways to utilize them when estimating the cash flow, which is the variable to apply the discounted cash flow method-based income approach. This study contributes empirical insights into how to valuate databases considering their value drivers.

• 한국임상약학회지
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• 제11권1호
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• pp.30-41
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• 2001

Recently, the use of electronic drug information databases has been increased alternative to printed references. However, databases vary widely in quality and quantity of drug information provided and many questions have arisen about their accuracy, completeness, and reliability. This study was designed to compare and evaluate the drug information contained in four Korean drug information databases which are available on CD-ROM and internet. Four Korean drug information databases selected to be evaluated were eKIMS, Datapower, KPA Standard Drug Information and Korean Drug Formulary. Databases were searched and evaluated from August 10 to September 30, 2000 by the same trained searcher to minimize the bias. The database evaluation form was developed for objective evaluation of each databases in terms of credibility of database, convenience of use and other characteristics. The second form was developed for quantitative and qualitative assessment of the drug information provided by the databases. The results of the study showed that there were no significant differences in 4 databases in terms of convenience of use and other characteristics. However, for credibility of databases, Korean Drug Formulary was significantly superior to all other databases (P<0.05). It showed that information provided by Korean Drug Formulary was the best in terms of pharmacokinetics, chemistry, comparisons and eKIMS was the best in terms of drug identification (P<0.05). For accuracy and completeness of information provided, the study could not find a significant difference between 4 databases (P>0.05).

• 정보관리연구
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• 제36권2호
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• pp.153-172
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• 2005

현재 저작권과 온라인 디지털 콘텐츠 산업발전법은 데이터베이스와 디지털 콘텐츠 제작자를 보호대상으로 하고 있다. 미국 데이터베이스 보고서의 추가 보호론에 데이터베이스는 경제 및 과학에 있어 그 중요성을 더해 가고 있으며, 인터넷 상의 핵심적 요소가 되어가고 있다. 그러므로 우리나라의 공공 민간 모두 데이터베이스의 법적 보호에 신중을 기해야 한다. 본 고에서는 과학기술 데이터베이스 법적 보호의 전반적인 문제점들과 현행법에 의한 과학기술 데이터베이스 보호의 핵심적인 내용과 추가적인 보호 문제를 깊이있게 다루었다. 과학기술 데이터베이스 산업의 발전이 국가의 경쟁력 확보에 중대한 몫을 차지하고 있다는 점을 고려할 때, 데이터베이스의 법적보호방안 마련은 데이터베이스의 지속적인 발전을 도모하기 위한 정책의 하나로서, 간과되어서는 안 될 중요한 사안 중의 하나이다.

• 한국정보과학회논문지:데이타베이스
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• 제28권3호
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• pp.406-417
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• 2001

웹에서의 멀티미디어 데이터베이스가 발달함에 따라 분산 멀티미디어 데이터에 대한 검색 기능의 필요성이 높아지고 있다. 그러나 지금까지는 주로 웹상에 분산된 텍스트 데이터베이스를 선택하고 선택된 텍스트 데이터베이스에 대해소 질의 결과를 결합하는 연구가 이루어졌을 뿐 멀티미디어 데이터베이스에 대해서는 연구가 미진하였다. 웹상의 멀티미디어 데이터베이스는 자율적이고 이질적인 특성을 가지고 있고 주로 내용 기반으로 검색된다. 멀티미디어 데이터베이스에서의 수집 융합 문제는 웹상의 이질적인 멀티미디어 데이터베이스에서 내용 기반 검색으로 검색된 경과를 병합하는 것을 다룬다. 이 문제는 분산 멀티미디어 데이터베이스의 검색에 매우 중요하지만 아직까지 연구된 바가 없다. 본 논문은 웹상에서 이질적인 멀티미디어 데이터베이스의 수집 융합을 처리하는 새로운 알고리즘을 제안한다. 본 논문은 데이터베이스에서 검색할 객체의 개수를 추정하는 휴리스틱 방법과 선형 회귀분석을 이용한 알고리즘을 사용한다. 그리고 실험에 의해서 이 알고리즘들의 효율성을 보였다. 이 알고리즘들은 향후 웹상의 멀티미디어 데이터베이스들에 대한 분산 내용 기반 검색 알고리즘들의 기본이 될 수 있다.

• International Journal of Internet, Broadcasting and Communication
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• 제10권2호
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• pp.31-38
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• 2018

As the use of open source databases grows, so does need to evaluate, the performance of search queries for these databases. This paper compares the search query performance of SQL-based open source databases with commercial databases through experiments. The targets are MySql, MariaDB, and MS-SQL Server. In this study, the execution time of various types of search queries are measured. Also, search query performance was experimented according to change of index and number of tuples. Experimental results show that SQL-based open source databases have the potential to replace commercial databases when indexes are used and the number of tuples is not very large.

• 경영과학
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• 제11권2호
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• pp.65-77
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• 1994

One of the major issues in the implementation and maintenance of CIM databases is the sharing and exchange of information among the heterogeneous databases. This paper addresses some architectural aspects for integrating the heterogeneous multi-databases using knowledge-based expert systems. we propose a loosely integrated coupling system between databases and knowledge-based expert systems. Especially we suggest the architectural aspects of such a coupling methodology. we also present the structure and knowledge representation scheme for the proposed knowledge-based expert system. A prototype example is included to illustrate the framework and its mechanism for implementation.

• 한국도서관정보학회지
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• 제32권4호
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• pp.283-302
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• 2001

온라인 상용 데이터베이스에 대한 이용자 불만족 요인을 기초로 하여, 우리나라 인물 데이터베이스를 분석 평가 하고 외국의 인물데이터베이스 현황과 비교하였다. 구체적으로 최신성, 포괄성, 완전성, 그리고 다양성을 평가하였으며 문제점과 발전방향을 도출하였다.