• 대한지역사회영양학회지
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• 제9권1호
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• pp.81-89
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• 2004

A systematic review and meta-analysis of the literatures was conducted to evaluate the effectiveness of nutrition intervention by dietitian. The 31 studies that were all randomized controlled trials, were identified from computerized search of published researches on MEDLINE, Embase database until January, 2003 and review of reference lists. The main search terms were the combination “dietitian”, “dietary intervention”, “nutrition intervention” or “nutritional intervention” and “effectiveness”. The subgroup analysis was performed by the publication year, quality score, type of disease, content of intervention, intervention provider, type of intervention (nutritional counseling and education/nutrilion counseling and education + diet modification), method of intervention (individual/group/individual + group) and follow-up period. Two reviewers independently selected trials for inclusion, assessed the quality and extracted the data. The meta-analysis of 31 studies based on the random effect model showed that the medical nutrition therapy was significantly effective in treating the diseases (effect size 0.1715 : 95% confidence interval 0.0938-0.2491). This study showed the clear evidence of the effectiveness of nutrition intervention through the meta-analysis. So the nutrition intervention by dietitian should be recommended and recognized as the effective therapy of treating the diseases. Also the nutrition intervention should be conducted regularly to maintain the effectiveness of the nutrition intervention. The nutrition intervention was significantly effective in treating the diseases on the random effect model (effect size 0.1715 : 95% confidence interval 0.0938-0.2491).

• 한국통신학회논문지
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• 제30권8B호
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• pp.549-561
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• 2005

인터넷 기술과 통신망 기술이 발전됨에 따라 전자상거래는 복잡하고 다양해지고 있다. 본 논문에서는 이기종 데이터베이스 시스템들 간의 메타데이터 및 데이터 교환을 위해 W3C에서 제안한 XML Schema를 사용하고, XML Schema는 관계형 데이터베이스 시스템의 메타데이터 및 데이터를 계층적 구조인 XML 문서형식으로 나타낼 수 있고, 다양한 원시 데이터 형식을 지원하여 관계형 데이터베이스 시스템이 제공하는 데이터형식을 충분히 반영할 수 있는 구조를 사용한다. 그리고 기존 전자상거래에서는 이질적인 플랫폼을 사용함으로 인해 발생하는 시스템간의 상호 호환 및 운영의 어려움이 있다. 이러한 문제를 해결하기 위해 상품 분류와 속성표현의 표준과 관계성을 정의한 표준 온톨로지와 상품들에 대한 전자상거래 사이트의 정보를 제공하는 로케이션 온톨로지를 구축한다. 이 온톨로지 정보를 검색시스템에 적용하여 고객의 선택에 필요한 정보를 제공함으로서 효율적인 검색을 수행한다. 이러한 온톨로지와 상품 분류 카테고리 정보를 결합하여 XMDR이라 하고, 이 XMDR을 상품 검색 시스템에 도입하여 효율적인 검색을 수행하기 위한 은톨로지 서버 구축에 관한 방법을 제안한다.

• 대한한방내과학회지
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• 제42권3호
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• pp.385-402
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• 2021

Objective: This study confirms the safety and efficacy of Banhasasim-tang (BST) against cough through systematic review and meta-analysis. Methods: PubMed, Cochrane, ScienceDirect, Wiley online library, OASIS, KISS, NDSL, RISS, Science and Technology Society Village, DBpia, CNKI, J-STAGE, and CiNii were used as search engines. The search period was from the start of search engine support to June 30. 2020. And search language was not limited. Cochrane's risk of bias (RoB) tool was used to evaluate the quality of the studies. A meta-analysis of the total effective rate (TER), cough symptom score, and spirometry results was performed using the Review Manager program. Results: 6 studies were finally selected. The group using BST showed significant symptom relief, as the odds ratio (OR) value of TER was 5.56 times higher (95% CI: 3.50, 8.82, P<0.0001) compared to the control groups. The reported adverse effects did not occur in the intervention group. In addition, the cough symptom score and spirometry results showed that BST was more effective than Western medicine alone. Conclusion: BST can be expected to relieve cough, and it can be applied to chronic cough that is not treated with existing treatments. However, due to the low quality of the selected articles, additional high-quality RCTs will be required in the future.

• 한국정보처리학회논문지
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• 제7권6호
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• pp.1746-1752
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• 2000

In this paper, a cache mechanism is proposed to improve the speed of query processing in distributed director database systems. To decrease search time of requested objects and query processing time. query requests and results about objects in a remote site are stored in the cache of a local site. Cache system architecture is designed according to the classified information. Cache schema are designed for each cache information. Operational algorithms are developed for meta data cache which has meta data tree. This tree improves the speed of query processing by reducing the scope of search space. Finally, performance evaluation is performed by comparing the proposed cache mechanism with X500.

• 한국멀티미디어학회논문지
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• 제4권4호
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• pp.287-296
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• 2001

메타 검색에서 이질의 컬렉션으로부터 정보를 검색할 때, 주어진 질의에 대하여 가장 적합한 컬렉션을 선택하는 것에 대한 알고리즘을 제안한다. 제안된 컬렉션 선택 방법은 검색에 참여한 컬렉션으로부터 질의에 대해 임의의 크기 N 만큼 검색 문서를 수집한 후에 이를 분석하여 컬렉션에 대한 관련성 정도로 추정하고 이를 기반으로 컬렉션 선택 기준을 결정하였다. 이때 가장 적합한 컬렉션을 선택하기 위해서, 모집단의 크기 N, 관련문서의 순서정보, 정화도 등의 메타 정보를 사용하였다.

• 한국어교육
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• 제23권1호
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• pp.25-45
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• 2012

The purpose of this article is to examine types and construction method of multimedia materials for the Korean language education, finally in order to construct digital library on Nuri-Sejonghakdang. Firstly, this article reviews some major concepts such as teaching material, multimedia, learning object, meta-data, reusability, etc. Secondly, various multimedia materials are divided into three types(namely, example material, explanation material, training and evaluating material) according to their characteristics as a learning objects. And then, this article tries to propose the classification-search system and meta-data elements for effective search and use of multimedia materials. Finally, this article is concluded by presenting the long-term plan of digital library construction on Nuri-Sejonghakdang and some follow-up task of this study.

• Nuclear Engineering and Technology
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• 제53권11호
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• pp.3772-3783
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• 2021

This work proposes a new efficient meta-heuristic optimization algorithm called Gamma Ray Interactions Based Optimization (GRIBO). The algorithm mimics different energy loss processes of a gamma-ray photon during its passage through a matter. The proposed novel algorithm has been applied to search for the global minima of 30 standard benchmark functions. The paper also considers solving real optimization problem in the field of nuclear engineering, radioisotope identification. The results are compared with those obtained by the Particle Swarm Optimization, Genetic Algorithm, Gravitational Search Algorithm and Grey Wolf Optimizer algorithms. The comparisons indicate that the GRIBO algorithm is able to provide very competitive results compared to other well-known meta-heuristics.

• 한국정보시스템학회지:정보시스템연구
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• 제25권1호
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• pp.159-182
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• 2016

Purpose This paper aims to develop a novel tabu search algorithm for solving the sequencing problems with precedence constraints. Due to constraints, the traditional meta heuristic methods can generate infeasible solutions during search procedure, which must be carefully dealt with. On the contrary, the candidate order based tabu search (COTS) is based on a novel neighborhood structure that guarantees the feasibility of solutions, and can dealt with a wide range of sequencing problems in flexible manner. Design/methodology/approach Candidate order scheme is a strategy for constructing a feasible sequence by iteratively appending an item at a time, and it has been successfully applied to genetic algorithm. The primary benefit of the candidate order scheme is that it can effectively deal with the additional constraints of sequencing problems and always generates the feasible solutions. In this paper, the candidate order scheme is used to design the neighborhood structure, tabu list and diversification operation of tabu search. Findings The COTS has been applied to the single machine job sequencing problems, and we can see that COTS can find the good solutions whether additional constraints exist or not. Especially, the experiment results reveal that the COTS is a promising approach for solving the sequencing problems with precedence constraints. In addition, the operations of COTS are intuitive and easy to understand, and it is expected that this paper will provide useful insights into the sequencing problems to the practitioners.

• 경영과학
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• 제17권1호
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• pp.65-86
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• 2000

Recently many organizations have attempted to build hypermedia systems to expand their working areas to internet-based virtual work places. It is thus important to manage corporate hypermedia documents effectively. Metadata play a critical role for managing these documents. This paper identifies metadata roles and components to build its schema. Furthermore a meta-information system HyDoMiS(Hyperdocument Meta-information System) is proposed by the use of this metadata schema. HyDoMiS performs three functions; metadata management search and reporting The metadata management function is concerned with workflow document and database. The system is more likely to help implement and maintsain hypermedia information system effectively.

• 한국문헌정보학회지
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• 제40권2호
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• pp.175-194
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• 2006

다양한 도서관 포털시스템의 서브셋인 통합 유저인터페이스 시스템을 (1) 검색(searching)기능, (2) 이용자 상호작용, (3) 인터페이스 customization, (4) 이용자 인증(authentication), (5) 디자인, (6) 데이터베이스 통신 프로토콜, (7) 벤더의 지원, (8) 소프트웨어 플랫폼 같이 8개 기준으로 비교 분석하였다. 그 결과 통합 유저인터페이스는 EnCompass. MetaLib, Musesearch, SingleSearch가 가장 높은 평가 점수를 얻었으며 국내에서는 KDB의 메타서치가 가장 좋은 점수를 얻었다.