• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2008년도 한국컴퓨터종합학술대회논문집 Vol.35 No.1 (A)
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• pp.70-71
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• 2008

• 정보과학회지
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• 제28권8호
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• pp.75-84
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• 2010

• 한국생활과학회지
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• 제15권3호
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• pp.513-525
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• 2006

The purpose of this study is to analyze physical characteristics, spatial composition, and using behavior of lounges in elderly skilled nursing facilities as spaces for activity programs and also to evaluate the spaces with the framework based on the indices for performing activity programs in elderly facilities. The results of the study were as follows: First, the lounge of an independent type ensured the privacy to perform programs, and so activities were managed more systematically. On the other hand, an expanded corridor type made the elderly feel difficult to pay attention to activities due to co-use of lounges and corridors. In a lounge of a hall type, the elderly had easy access to the place, but it also had weak home-like atmosphere because the space was used as a lobby entrance. Second, the facilities with western types of tables in whole lounges showed big changes in spatial composition, such as moving all the tables for any activities. It resulted in more preparation time and created obstacles in passages and space use. Third, in the evaluation of lounges based on the framework, most of lounges had accessibility of good quality, but they needed to improve home-like atmosphere and flexibility. To create home-like atmosphere, various spatial compositions and classifications in the lounge should be tried. Moreover, enough space and easy movable furniture can be considered for flexible spatial compositions.

• Journal of Information Processing Systems
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• 제14권4호
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• pp.1010-1032
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• 2018

Recent advances in medical science have made people live longer, which has affected many aspects of life, such as caregiver burden, increasing cost of healthcare, increasing number of disabled and depressive disorder persons, and so on. Researchers are now focused on elderly living assistance services in smart home environments. In recent years, assisted living technologies have rapidly grown due to a faster growing aging society. Many smart devices are now interconnected within the home network environment and such a home setup supports collaborations between those devices based on the Internet of Things (IoT). One of the major challenges in providing elderly living assistance services is to consider each individual's requirements of different needs. In order to solve this, the virtualization of physical things, as well as the collaboration and composition of services provided by these physical things should be considered. In order to meet these challenges, Web of Objects (WoO) focuses on the implementation aspects of IoT to bring the assorted real world objects with the web applications. We proposed a semantic modelling technique for manual and semi-automated service composition. The aim of this work is to propose a framework to enable RESTful web services composition using semantic ontology for elderly living assistance services creation in WoO based smart home environment.

• 정보처리학회논문지D
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• 제16D권5호
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• pp.737-746
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• 2009

SOA의 출현은 비즈니스 및 IT 환경에 많은 영향을 주었고 학계 및 산업에서 많은 연구가 진행 중이다. 향후 서비스는 폭발적으로 증가할 것이며, 서비스를 컴포지션하여 비즈니스 기회를 창출하고 IT는 이를 지원할 것이다. 그러나 컴포지션의 대상이 되는 서비스를 선정하는 연구는 부족한 실정이다. 본 연구는 서비스 컴포지션 대상을 선정하는 프레임워크를 제안하는 것이며, 선정 방법으로는 Analytic Hierarchy Process 기법을 활용한다. 본 연구의 결과는 서비스 조합시 서비스의 기능/비기능 속성을 반영하고 다양한 이해당사자의 관점과 다수 선정 기준을 적용 하여 서비스 선정을 가능하게 하였다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1996년도 Proceedings of the Korea Automatic Control Conference, 11th (KACC); Pohang, Korea; 24-26 Oct. 1996
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• pp.295-298
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• 1996

In distillation column control, secondary measurements such as temperatures and flows are widely used in order to infer product composition. This paper addresses the design of static estimators using the secondary measurements for estimating the product compositions of the multicomponent distillation columns. Based on the unified framework for the estimator problems, the relationships among several typical static estimators are discussed including the effect of the measured inputs. Design guidelines for the composition estimator using PLS regression are also presented. The estimator based on the guidelines is robust to sensor noise and has a good predictive power.

• 정보처리학회논문지D
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• 제17D권6호
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• pp.415-422
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• 2010

본 논문은 단위 컴포넌트가 제공하는 서비스를 중심으로 컴포넌트 행위모델을 합성하고 상위수준의 추상적 행위모델을 추출하는 서비스기반 합성과 검증기법을 제안한다. 이를 위하여, 상향식 행위양식 추상화의 기초가 되는 추상 컴포넌트를 정의하고, 포트기반 동기화 알고리즘과 서비스기반 투영을 통한 추상화기법을 제안하였다. 또한, 제안된 기법을 적용한 모델검증 프레임워크를 개발하고, 사례연구를 통하여 제안된 방식이 검증비용을 절감함을 입증하였다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2006년도 추계 종합학술대회 논문집
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• pp.580-583
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• 2006

웹 애플리케이션은 복잡한 비즈니스 소프트웨어 및 온라인 서비스의 바탕이 되는 플랫폼으로서 더욱 많이 사용되고 있다. 초기 JSP 분야에는 모델 1과 모델 2라는 두 가지 아키텍처 설계 용어가 등장한다. 이들 두 용어는 현재 JSP 분야 문서에는 언급되고 있지는 않지만, 현재 웹 애플리케이션의 아키텍처 설계에는 광범위하게 적용되고 있다. 본 논문에서는 웹 애플리케이션 프레임워크 정의 및 프레임워크 패턴, 설계시 고려사항 등을 토대로 컴포넌트가 실행되는 기반을 구성하는 프레임워크를 설계한다.

• Journal of Astronomy and Space Sciences
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• 제41권2호
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• pp.79-85
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• 2024

Nowadays, the trend in lunar exploration missions is shifting from prospecting lunar surface to utilizing in-situ resources and establishing sustainable bridgehead. In the past, experiments were mainly focused on rover maneuvers and equipment operations. But the current shift in trend requires more complex experiments that includes preparations for resource extraction, space construction and even space agriculture. To achieve that, the experiment requires a sophisticated simulation of the lunar environment, but we are not yet prepared for this. Particularly, in the case of lunar regolith simulants, precise physical and chemical composition with a rapid development speed rate that allows different terrains to be simulated is required. However, existing lunar regolith simulants, designed for 20th-century exploration paradigms, are not sufficient to meet the requirements of modern space exploration. In order to prepare for the latest trends in space exploration, it is necessary to innovate the methodology for producing simulants. In this study, the basic framework for lunar regolith simulant development was established to realize this goal. The framework not only has a sample database and a database of potential simulation target compositions, but also has a built-in function to automatically calculate the optimal material mixing ratio through the particle swarm optimization algorithm to reproduce the target simulation, enabling fast and accurate simulant development. Using this framework, we anticipate a more agile response to the evolving needs toward simulants for space exploration.

• 한국컴퓨터정보학회논문지
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• 제16권5호
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• pp.109-125
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• 2011

폭소노미는 웹에 존재하는 리소스에 대해 구성원이 자유롭게 선택한 태그를 붙여서 정보를 체계화하는 새로운 분류 체계이다. Del.icio.us, Flickr, YouTube 등과 같은 최근의 폭소노미 기반 협력 태깅 시스템들을 살펴보면, 폭소노미 데이터를 체계화하고 유용한 서비스를 제공하기 위해 폭소노미의 각 구성요소들(사용자들, 태그들, 리소스들)을 그룹핑하기 위한 기능들을 추가하고 있다. 본 논문에서는, 일반적인 폭소노미에 "그룹(Group)"이라는 개념을 도입하여 확장한 그룹화된 폭소노미(Grouped Folksonomy) 모델과 그룹핑 관련 기본 연산들(Group Aggregation, Group Composition, Group Intersection, Group Difference)을 제안한다. 또한, 본 논문에서는 그룹화된 폭소노미의 구축과 기본연산 수행을 지원하는 도구(GFO)의 개발과 활용사례를 소개한다. 본 연구에서 제안된 모델과 기본 연산들로 구성된 그룹화된 폭소노미 구축을 위한 프레임워크는 폭소노미의 각 구성요소들을 그룹핑하여 그룹화된 폭소노미를 구성하고 보다 유용한 정보들을 추출 및 통합하여 체계화 할 수 있는 토대를 제공한다.