• 한국실내디자인학회논문집
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• 제25권6호
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• pp.127-138
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• 2016

As the dark side of society, Idle spaces, which occurred with the paradigm change due to rapid modernization and industralization, has been existing as a severed part in cities. But with the periodic change, interest in the existing place and regional regeneration, and the necessity of reconsidering about the idle spaces values of space, city environment, socio-culture, and economy was proposed. I estimated that the change of relational aesthetics aspect of modern arts resulted in the consideration of recognizing 'place' of art, through the study, it was revealed that the form of modern arts and change of enjoyment were related to space, and the fact that this had a relation with the rise of artistic regeneration of idle spaces. mutually communicative relationship formation and practical form of arts was deducted through the interpretation of relational aesthetics, Idle spaces and artistic regeneration space can be categorized into forms of experiential space, creative space, and cultural space, depending on the formation of relationship between author-art-audience. Through the comprehensive analysis, Artistic regeneration space by relationship formation is Vitalization of various forms of art and participation program eliminates the boundary between creation and enjoyment, and the space itself can be said to contain extensive, integral, and nonterritorialization meaning as a place of experiencing art. In other words, Artistic regeneration space of idle spaces forms a close relationship with the local society, and is placed within the context of daily domain as an open space, straying off from the existing separative and closed artistic space configuration. and artistic changeover of idle spaces is not only the appearance of space that simply fulfills function according to transfiguration of modern art, but signifies that art is coexisting with space as an indivisible relationship, and can be said to be the foothold of new relationship creation as the practical 'place' of art.

• 대한원격탐사학회지
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• 제3권2호
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• pp.115-119
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• 1987

After the introduction of the topologically structured geographic information system(GIS) with relational DBMS, the attribute data can be handled without considering locational data. By utilzing of the characteristic of the relational DBMS, it can be used as an expert system building tool in GIS. The relational DBMS of the GIS furnishes the data needed to perform deductive functions of the expert system, and the rule based approach provides the decision rules. Therefore, rule based approach with the expert judgement can be easily combined with relational DBMS.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제7권4호
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• pp.274-278
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• 2007

As XML becomes the standard of digital data exchange format we need to manage a lot of XML data effectively. Unlike tables in relational model XML documents are not structural. That makes it difficult to store XML documents as tables in relational model. To solve these problems there have been significant researches in relational database systems. There are two kinds of approaches: 1) One way is to decompose XML documents so that elements of XML match fields of relational tables. 2) The other one stores a whole XML document as a field of relational table. In this paper we adopted the second approach to store XML documents because sometimes it is not easy for us to decompose XML documents and in some cases their element order in documents are very meaningful. We suggest an efficient table schema to store only inverted index as tables to retrieve required data from XML data fields of relational tables and shows SQL translations that correspond to XML full-text retrievals. The functionalities of XML retrieval are based on the W3C XQuery which includes full-text retrievals. In this paper we show the superiority of our method by comparing the performances in terms of a response time and a space to store inverted index. Experiments show our approach uses less space and shows faster response times.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 1992년도 제2회 정기총회 및 추계학술 발표회 발표논문 초록
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• pp.12-12
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• 1992

This paper proposes an analysis method of Petri nets (PNs) using the relational algebra (RA). More specifically, we represent PNs in relations of the relational model. Based on such representation, we first develop an algorithms for analyzing properties of PNs, such as boundedness, conservation, coverability, reachability, and liveness. The advantage of this approach is as follows: First, the algorithms represented by RA can be easily converted to a query language such as SQL of the widely used, commercial relational database management systems (DBMSs). Second, we can alleviate the problem of state space explosion because relational DBMSs can handle large amounts of data efficiency. Finally, we can use the DBMS's query language to interpret the Petri nets and make simulation.

• 건축역사연구
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• 제6권3호
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• pp.45-59
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• 1997

One of the main purposes of architectural history is the analysis of existing designs in order to find laws and orders of certain types, while space planning emphasizes the generation of design. In this study, relational space planning methodology is used to generate Chosun upper-class housing prototypes based on 'Yaejae' logic model. During the Chosun Dynasty era in Korea, Confucianism was the ruling ideology for its society. The patio type house was the main upper-class housing type during the Chosun Dynasty, and it can be viewed that space planning was heavily influenced by the law of 'Yaejae' in Confucianism. The logic of 'Yaejae' can be interpreted as relationships between spaces. Relational space planning methodology that reasons through constraint propagation is used to generate prototypes. Prototypes are compared in order to verify actual applications of the logic into space planning.

• 한국지역지리학회지
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• 제19권2호
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• pp.203-222
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• 2013

본 연구는 두 가지 목적 하에서 수행되었다. 하나는 결혼 이주 여성이 가족, 이웃, 친구, 조직, 국가와 관계하면서 겪는 갈등, 차별, 저항 등을 구체적으로 탐색하는 것이다. 다른 하나는 결혼 이주 여성과 가족을 새로운 시각, 즉 초국가(국경을 초월한 로컬과 로컬의 관계), 로컬, 국가와의 관계적 공간으로 설명하는 데 있다. 연구 결과는 세 가지로 요약될 수 있다. 첫째는 국제결혼에 의해 초국가적 공간이 형성되며, 생성된 공간은 결혼 이주 여성의 (비)일상적 활동에 의해 유지된다. 초국가적 활동은 송금(remittance), 자녀의 양육과 교육, 친정 방문, 전화나 인터넷 등을 통한 정서적 교감 등이 포함된다. 둘째는 결혼 이주 여성이 가족, 이웃, 친구, 기관 등과 연관됨에 따라 중층적인 관계적 로컬 공간이 형성 유지되고 있다. 셋째는 결혼 이주 여성은 국적 취득과 정부(지방자치단체)의 다문화 지원 사업의 측면에서 국가 권력 혹은 정부 행정과 연관되어 있다. 국민 정체성과 관련지어 결혼 이주 여성은 모국과 한국 가운데 어디에 속하는지 구분이 불명확한 위치에 놓여 있음을 느끼는 경우도 있다.

• 한국주거학회논문집
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• 제18권3호
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• pp.81-89
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• 2007

This study is aimed at understanding objectively on the visual perception of atypical space and form in contemporary architecture. It is accomplished to compose the various form and the atypical space in contemporary architecture, which by means of applying digital technology to architecture is able to materialize complicated form and space. Therefore this the sis is needed to understand user's senses and affects in atypical space and form. Atypical space is able to interpret geometrically and analyze quantitatively into visual perception. This analysis is applied to Isovist used as quantitative analysis recently, and physical analysis of space used as quantitative analysis defined to vertical elements, which is analysed comparatively to visual perception in observer's point and characteristics in spatial elements. Examples are selected to four examples represented to typical and atypical space in contemporary houses. As examples are analysed to visual perception of spatial character, this study is intended to understand to spatial character in aspects of spatial composition and observer's visual perception. In results of perceptive analysis on four spatial examples, Atypical spaces are composed of changeable spatiality, which are composed changeably of the relational method with adjacent spaces. Also, typical spaces are composed monotonously of spatiality and relational method on control of the length in boundary plane and openness.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1998년도 The Third Asian Fuzzy Systems Symposium
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• pp.240-245
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• 1998

Fuzzy information retrieval which uses the concept of fuzzy relation is able to retrieve documents in the way based on not morphology but semantics, dissimilar to traditional information retrieval theories. Fuzzy information retrieval logically consists of three sets : the set of documents, the set of terms and the set of queries. It maintains a fuzzy relational matrix which describes the relationship between documents and terms and creates a thesaurus with fuzzy relational product. It also provides the user with documents which are relevant to his query. However, there are some problems on building a thesaurus with fuzzy relational product such that it has big time complexity and it uses fuzzy values to be processed with flating-point. Actually, fuzzy values have to be expressed and processed with floating-point. However, floating-point operations have complex logics and make the system be slow. If it is possible to exchange fuzzy values with binary values, we could expect sp eding up building the thesaurus. In addition, binary value expressions require just a bit of memory space, but floating -point expression needs couple of bytes. In this study, we suggest a new method of building a thesaurus, which accelerates the operation of the system by pre-applying an ${\alpha}$-cut. The experiments show the improvement of performance and reliability of the system.

• 정보과학회지
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• 제4권2호
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• pp.34-44
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• 1986

본 연구에서는 mini computer를 이용하는 relational data base 관리 운영 체제의 실현적인 구현을 위한 시스템 설계를 소개한다.이 시스템은 독자적으로 개발한 간단한 operating system을 이용하며, assembly 언어로 쓰여졌으므로 기 존 assembler를 사용하였다. 시스템 설계방법에 data base가 차지하는 공간 (memory space)의 효율을 주로 고려하였으며, mini computer로는 No.A 840 system을 이용하였다.

• 한국멀티미디어학회논문지
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• 제9권6호
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• pp.700-708
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• 2006

In this paper, we propose a method of managing versions of XML documents by using relational databases. Data structures based on relational tables are developed for accommodating versions of XML documents. The structure information, the contents, and changes of the versions are stored in relational tables. Thus, SQL can be exploited in queries such as horizontal queries, vertical queries, and delta queries without parsing the documents. The structure information and contents of all versions are not represented explicitly in the tables, those of certain versions which are called snapshot versions are represented. Other versions are represented indirectly as sequences of operations that are stored in the corresponding tables. The experiment shows the space performance.