• Title/Summary/Keyword: Relational Structures

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Smart Tourism Destination from a Systemic Perspective: A Brazilian Case Study

  • Ralyson Soares;Luiz Mendes-Filho
    • Journal of Smart Tourism
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    • v.4 no.1
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    • pp.7-18
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    • 2024
  • This study examines Natal in Brazil as a Smart Tourism Destination (STD) based on the perception of public and private managers who are members of the City Tourism Council. The research utilizes a systemic perspective of STD proposed by Ivars-Baidal et al. (2016), consisting of three interconnected levels: Strategic-Relational, Instrumental, and Applied. The findings reveal that Natal faces challenges in terms of infrastructure, accessibility, security, connectivity, and sensoring, which hinder its progress as STD. The study also identifies opportunities in the form of governance structures with smart destinations and the inclusion of smartness guidelines in the City Master Plan. The research aims to contribute to the theoretical understanding of STD and its application in destination development. It highlights the need for innovative planning and management in Natal, emphasizing that adopting the STD from a systemic perspective can enhance competitiveness and elevate the level of smartness in the destination.

An Analysis of the Architectural and Urban Space through Practical Issues of Landscape Urbanism (랜드스케이프 어바니즘의 실천적 주제에 의한 건축도시 공간 분석)

  • Kim, Min-Kyung
    • Journal of Korean Association for Spatial Structures
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    • v.9 no.3
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    • pp.83-92
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    • 2009
  • This study tries to feel out the possibility of experimental areas of architecture which is becoming urbanization gradually through practical issues of landscape urbanism. According to this study, it is affirmed that the practical issues of landscape urbanism such as process in time, Potential territoriality of surface, practical methodology and socio-cultural imagination already have rome into the architectural area over urbanism. This is presented as characteristics of detail issues through relational density on the matrix of landscape urbanism, traces of the general landscape concepts and architectural landscapeconcepts. As a result, these practical issues and detail architectural strategies constitute the important spatial characteristics of contemporary architecture.

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An Autonomous Modular Account of Double Accusatives (이중대격에 대한 자율모듈적 분석)

  • Kim, Kyunghwan
    • The Journal of the Korea Contents Association
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    • v.22 no.10
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    • pp.74-82
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    • 2022
  • The purpose of this paper is to provide a multi-modular account of double accusative constructions in Korean in the framework of Autolexical Grammar. The grammar views syntactic, semantic, and morphological structures of sentences as modules which are generated simultaneously and independently. Unlike syntactocentric theories, this paper analyzes semantic characteristics of double accusatives through function-argument (F/A) structure along with roles structure (RS) and information structure (IS). In F/A structure of double accusatives, the first accusative becomes an argument of a predicate, unlike the possessive, which is an argument of a relational noun. Furthermore, the first accusative of double accusatives takes the role of patient in RS, which allows it to become the subject of a passive sentence. On the other hand, the second accusative, which is originally the possessee, becomes a focal area in IS. Therefore, the purpose of double accusatives is twofold: one is to turn the possessor into an independent argument of a predicate which takes patient role, and the other is to turn the possessee into a focus. Such semantic characteristics of double accusatives can be expressed by means of multi-dimensional structures of F/A structure, RS, and IS of Autolexical Grammar, which allows an integrated account of the phenomenon.

A Development of the ebXML Registry v2.1 Server (ebXML 레지스트리 v2.1 서버 개발)

  • 조강녕;이규철
    • The Journal of Society for e-Business Studies
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    • v.8 no.3
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    • pp.17-36
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    • 2003
  • ebXML is a global electronic business standard that is sponsored by UN/CEFACT and OASIS. ebXML is an open XML-based infrastructure enabling the global use of electronic business information in an interoperable, secure and consistent manner by all parties. ebXML Registry provides a stable store where the business information submitted by partners is made persistent and a set of registry services that enable clients of the Registry to access them. These services are tied to the structures defined in ebXML Registry Information Model(ebRIM), so we need a way to process them according to underlying database systems. In this paper, we present the result of developing the ebXML Registry Server based on Relational Database Systems.

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The Role of Analogical Reasoning in Mathematical Knowledge Construction (수학적 지식의 구성에서 유추적 사고의 역할)

  • Lee, Kyung-Hwa
    • Journal of Educational Research in Mathematics
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    • v.19 no.3
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    • pp.355-369
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    • 2009
  • Though there is no agreement on the definition of analogical reasoning, there is no doubt that analogical reasoning is the means of mathematical knowledge construction. Mathematicians generally have a tendency or desire to find similarities between new and existing Ideas, and new and existing representations. They construct appropriate links to new ideas or new representations by focusing on common relational structures of mathematical situations rather than on superficial details. This focus is analogical reasoning at work in the construction of mathematical knowledge. Since analogical reasoning is the means by which mathematicians do mathematics and is close]y linked to measures of intelligence, it should be considered important in mathematics education. This study investigates how mathematicians used analogical reasoning, what role did it flay when they construct new concept or problem solving strategy.

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A Shared Inlining Method for Resolving the Overlapping Problem of Elements (엘리먼트의 중첩 문제를 해결한 Shared Inlining 저장 기법)

  • Hong, Eun-Il;Lee, Young-Ho
    • Journal of KIISE:Databases
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    • v.35 no.5
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    • pp.411-420
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    • 2008
  • The number of XML documents, which are widely used as a standard method for information expression and exchange in the web-based environment, increases rapidly along with the growing production of large XML documents. Many studies have been made to store and retrieve these XML documents on RDBMS, among which Shared Inlining storage method has a higher level of retrieval efficiency. The Shared Inlining method is the technique that analyzes the DTD information and stores the XML document in RDBMS by dividing for each node component. This study proposes the technique to resolve the overlapping problem that occurs in the element with several child nodes in the existing Shared Inlining method. The suggested method stores the XML document in the Shared Inlining structures appropriate to the DTD definition and enhances the accuracy of retrieval.

A Spatiotemporal Data Model : 3D Supporting BiTemporal Time (시공간 데이타 모델 : 이원 시간을 지원하는 삼차원 구조)

  • 이성종;김동호;류근호
    • Journal of KIISE:Software and Applications
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    • v.26 no.10
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    • pp.1167-1167
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    • 1999
  • Although spatial databases support an efficient spatial management on objects in the real world, they have a characteristic that process only spatial information valid at current time, So in case of change in the spatial domain, it is very hard to support an efficient historical management for time-varying spatial information because they delete an old value and then replace with new value that is valid at current time. To solve these problems, there are rapidly increasing of interest for spatiotemporal databases, which serve historical functions for spatial information as well as spatial management functions for an object. However most of them presented in an abstract time-varying spatial phenomenon, but have not presented a concrete policy in spatiotemporal databases. In this paper, we propose a spatiotemporal data model that supports bitemporal time concepts in three dimensional architecture. In the proposed model, not only data types and their operation for object of spatiotemporal databases have been classified, but also mathematical expressions using formal semantics for them have been given. Then, the data structures and their operations based on relational database model as well as object-oriented database model are presented.

Directional Internalization of Sociocultural Values Related to the Appearance of Body Image and Self-Esteem (외모에 대한 사회문화적 가치의 내면화가 신체이미지와 자아존중감에 미치는 영향)

  • Yoo, Tai Soon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.37 no.3
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    • pp.260-269
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    • 2013
  • This study verifies the direct and indirect causal relationship of sociocultural values related to appearance effect appearance evaluation, body area satisfaction, appearance orientation, and self-esteem that are variables involved in body images. This paper is expected to empirically support the information regarding the path and the relative influence among related-variables and their relational structures. A survey was conducted on 230 women from the ages of 20 to 29 who live in Daegu and Gyeongbuk areas. The data analysis was performed through programs such as AMOS 19.0 and SPSS 19.0 for Windows. The findings are as follows: First, Sociocultural values relating to appearance affect directly body image - appearance evaluation, body area satisfaction, and appearance orientation. Appearance evaluation and appearance orientation were influenced positively; however, body area satisfaction received egative effects. In addition, sociocultural values related to appearance exert relatively stronger influence on appearance orientation. Second, among body images, appearance evaluation and body area satisfaction directly effect self-esteem; however, appearance orientation did not show any direct influence. Appearance evaluation influenced relatively higher on self-esteem. Third, it appeared that appearance evaluation directly affected Appearance orientation. Forth, sociocultural values related to appearance affect self-esteem through body images-appearance evaluation, body area satisfaction, and appearance orientation - as mediators. This confirmed the mediator role of body image between sociocultural values related to appearance and self-esteem.

Providing Approximate Answers Using a Knowledge Abstraction Hierarchy (지식 추상화 계층을 이용한 근사해 생성)

  • Huh, Soon-Young;Moon, Kae-Hyun
    • Asia pacific journal of information systems
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    • v.8 no.1
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    • pp.43-64
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    • 1998
  • Cooperative query answering is a research effort to develop a fault-tolerant and intelligent database system using the semantic knowledge base constructed from the underlying database. Such knowledge base has two aspects of usage. One is supporting the cooperative query answering process for providing both an exact answer and neighborhood information relevant to a query. The other is supporting ongoing maintenance of the knowledge base for accommodating the changes in the knowledge content and database usage purpose. Existing studies have mostly focused on the cooperative query answering process but paid little attention to the dynamic knowledge base maintenance. This paper proposes a multi-level knowledge representation framework called Knowledge Abstraction Hierarchy(KAH) that can not only support cooperative query answering but also permit dynamic knowledge maintenance, On the basis of the KAH, a knowledge abstraction database is constructed on the relational data model and accommodates diverse knowledge maintenance needs and flexibly facilitates cooperative query answering. In terms of the knowledge maintenance, database operations are discussed for the cases where either the internal contents for a given KAH change or the structures of the KAH itself change. In terms of cooperative query answering, four types of vague queries are discussed, including approximate selection, approximate join, conceptual selection, and conceptual join. A prototype system has been implemented at KAIST and is being tested with a personnel database system to demonstrate the usefulness and practicality of the knowledge abstraction database in ordinary database application systems.

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R2RML Based ShEx Schema

  • Choi, Ji-Woong
    • Journal of the Korea Society of Computer and Information
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    • v.23 no.10
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    • pp.45-55
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    • 2018
  • R2RML is a W3C standard language that defines how to expose the relational data as RDF triples. The output from an R2RML mapping is only an RDF dataset. By definition, the dataset has no schema. The lack of schema makes the dataset in linked data portal impractical for integrating and analyzing data. To address this issue, we propose an approach for generating automatically schemas for RDF graphs populated by R2RML mappings. More precisely, we represent the schema using ShEx, which is a language for validating and describing RDF. Our approach allows to generate ShEx schemas as well as RDF datasets from R2RML mappings. Our ShEx schema can provide benefits for both data providers and ordinary users. Data providers can verify and guarantee the structural integrity of the dataset against the schema. Users can write SPARQL queries efficiently by referring to the schema. In this paper, we describe data structures and algorithms of the system to derive ShEx documents from R2RML documents and presents a brief demonstration regarding its proper use.