• Title/Summary/Keyword: Syntax

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Axial map Implementation Using Linear Generalization of GIS data (GIS 도로 데이터의 일반화를 이용한 Axial map 구현 방법에 관한 연구)

  • Kwon, Soon-Il;Park, Soo-Hong;Joo, Yong-Jin
    • Spatial Information Research
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    • v.18 no.4
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    • pp.99-108
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    • 2010
  • Space Syntax methodology can be quantitatively calculated spatial cognitive analysis by number of turns_ In the existing GIS-based spatial information service provide 'physical distance' due to the shortest distance as a priority. but pedestrians tends to choose the path with concerned a lot of emphasis of safety, more vitality way from the crime at night, traffic accidents, and comfort on a road. Human's 'psychological distance' may reflect the spatial information services and provided path should be. In this study, using GIS Road Data implements the axial map with idea of the linear simplification principles. Traditional axial map of the Space Syntax get the assumption from the actual traffic values by comparing the results of correlation relationship. Through these methods, the actual relationship between traffic and test values have the correlation value($R^2$= 0.5387) 50% level and was able to get the results.

A Vine-Based Stochastic Loading Technique in Pedestrian Networks Considering Space Syntax Theory (Space Syntax Theory를 반영한 덩굴망기반 확률적 보행네트워크 배정기법)

  • Kim, Jong Hyung;Lee, Mee Young;Nam, Doo Hee
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.15 no.6
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    • pp.71-79
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    • 2016
  • Evaluation of the walkability of the urban pedestrian network requires construction of a pedestrian network model that reflects Space Syntax Theory. Space Syntax Theory deduces an integration value through which materials for evaluation of the pedestrian network's connectivity can be produced; and can aid in illustrating the ease of walkability through the model's calculation of pedestrian indices such as movability, comfort, and safety. But the representation of space syntax theory in the pedestrian network requires that turn delay be added by means of a network-type construction method. While tree-based Dial Algorithm proposed for the logit-based probability walkability distribution model may be effective for link-based pedestrian volume distribution, it requires further network expansion to reflect turn delays. In this research, Vine-based Dial Algorithm is executed in order to obtain a measure reflecting the integration value for Space Syntax Theory. The Vine-based Dial Algorithm of two adjacent links, which forms the minimum unit of the Vine network, has the advantage of encompassing turn delay, and thus eliminates the need for network expansion. Usage of the model to evaluation of complicated pedestrian spheres such as urban roads is left to further research. Especially the progression of the proposed method is deduced through case study.

An implementation of parser for special syntax processing in Korea (한국어 특수구문 처리를 위한 파서의 구현)

  • Kim, Jae-Mun;Lee, Sang-Kuk;Lee, Sang-Jo
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.31B no.11
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    • pp.124-135
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    • 1994
  • In this paper, we propose a Korean syntax analysis system for special syntax processing. HPSG, which processes syntatic and semantic analysis unificationally, is chosen for grammar description. Head-driven unidirectional active chart parser, which is efficient in Korean processing, is used for parsing mechanism. The parser of this paper can analyze not only general sentence structure which consists of complement-head, adjunct-head and head-head structure bur also special syntax which consists of auxiliay verb sentence, causative sentence, passive sentence and so on.

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A Simple Syntax for Complex Semantics

  • Lee, Kiyong
    • Proceedings of the Korean Society for Language and Information Conference
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    • 2002.02a
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    • pp.2-27
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    • 2002
  • As pact of a long-ranged project that aims at establishing database-theoretic semantics as a model of computational semantics, this presentation focuses on the development of a syntactic component for processing strings of words or sentences to construct semantic data structures. For design arid modeling purposes, the present treatment will be restricted to the analysis of some problematic constructions of Korean involving semi-free word order, conjunction arid temporal anchoring, and adnominal modification and antecedent binding. The present work heavily relies on Hausser's (1999, 2000) SLIM theory for language that is based on surface compositionality, time-linearity arid two other conditions on natural language processing. Time-linear syntax for natural language has been shown to be conceptually simple and computationally efficient. The associated semantics is complex, however, because it must deal with situated language involving interactive multi-agents. Nevertheless, by processing input word strings in a time-linear mode, the syntax cart incrementally construct the necessary semantic structures for relevant queries and valid inferences. The fragment of Korean syntax will be implemented in Malaga, a C-type implementation language that was enriched for both programming and debugging purposes arid that was particluarly made suitable for implementing in Left-Associative Grammar. This presentation will show how the system of syntactic rules with constraining subrules processes Korean sentences in a step-by-step time-linear manner to incrementally construct semantic data structures that mainly specify relations with their argument, temporal, and binding structures.

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Estimating the Validity of CPTED Guidelines on Residence Hall in University: Through the Comparison between CPTED Checklists and Space Syntax Analysis

  • Han, Dongho;Park, Changbae
    • Architectural research
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    • v.17 no.4
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    • pp.117-126
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    • 2015
  • University residence halls have become one of the most important issues for students when selecting their academic institutions. However, in South Korea, while universities maintain technologically up-to-date facilities, when it comes to safety or security, the management is unsatisfactory. As a result, the number of violent crime has been increasing. However, there are few researches in terms of practical validity of CPTED Guidelines even though a myriad of researchers study about CPTED Guidelines. Therefore, this study endeavours to investigate the validity of theoretical CPTED Guidelines that to what extent it might be adopted for design process. As a methodology, Space Syntax Convex map and Visibility Graph Analysis (VGA) are chosen. As a result, since the types of space which have a high level of Space Syntax Index are analogous with space treated on CPTED Guidelines, it roughly shows that the theoretical CPTED Guidelines could be adopted in practical architectural design process. Furthermore, it reveals that there is a close relationship between detail design guide stated in CPTED Guidelines and the result of VGA. That is, through the analysis, it is proved that the validity of CPTED Guidelines is quite enough to be adopted in practical design process.

A Design and Implementation of the Tree-based Document Editing System for XML Application (XML 어플리케이션을 위한 트리 기반 문서 편집 시스템의 설계 및 구현)

  • Kim, Young-Chul;Kang, Chun-Kil
    • The KIPS Transactions:PartD
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    • v.11D no.4
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    • pp.959-966
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    • 2004
  • This paper describes a design and implementation of the tree-based document editing system for XML application, available at the structure-oriented environment. This system converts DTD to ASTD( Syntax Tree Definition) to support syntax-directed editing for valid document, considers the extensibility to add new tools and supports multiple entry parser for real-time document validation. It is expected that this paper contributes related XML application document editing system development model.

A Study on the Choice of Flexible Housing Unit Plan (가변형 공동주택의 평면 선택에 대한 연구)

  • Lee, Bo-Ra;Kim, Young-Ook;Lee, Hyun-Soo;Kim, Soo-Am
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2005.11a
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    • pp.163-166
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    • 2005
  • The purpose of this study was to analyze the Characteristics of Flexible housing Unit Plan Choice. It is believed that Flexible Housing relates to Family life cycle and the number of family. But this study revealed another factor, Space Syntax. It is reviewed that the Space Syntax effectively reveals the relative spatial depth of the spatial elements composing flexible housing unit plan. Thus, the Space Syntax is adopted as an analytic method of this study to objectify the concrete spatial changes. Through this study, the spatial organization of each case before changing is compared wi th that after changing, to find out the spatial changes over variation, Based on this theory, this study provide basic data to be used for architectural planning for flexible design. To design common facilities that support residents' leisure activities is one of the contemporary issues in Korea. People became interested in the leisure facilities in near-home environments. This trend encouraged this research study. The objectives of this study are to analyze the current status and characteristics of leisure facilities in apartment communities, to examine the correlations among leisure facilities, and to suggest design considerations for korean multi-family housing communities.

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A Program Similarity Evaluation using Keyword Extraction on Abstract Syntax Tree (구문트리에서 키워드 추출을 이용한 프로그램 유사도 평가)

  • Kim Young-Chul;Choi Jaeyoung
    • The KIPS Transactions:PartA
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    • v.12A no.2 s.92
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    • pp.109-116
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    • 2005
  • In this paper, we introduce the method that a user analyses the similarity of the two programs by using keyword from the syntactic tree, created after the syntax analysis, and its implementation. The main advantage of the method is the performance improvement through using only keyword of syntax tree. In the paper, we propose the similarity evaluation model and how we extract keyword from syntax tree. In addition, we also show the improvement in the performance in analysis and in the system's structure. We expect that our system will be utilized in the similarity evaluation in text and XML documents.

An Efficient Syntax Rule for Selective Coding (선택적 부호화를 위한 효율적인 구문 표현)

  • 이종배
    • Journal of Korea Multimedia Society
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    • v.2 no.3
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    • pp.347-354
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    • 1999
  • Image sequence is compressed and stored as the unit of frame in computer, and reconstructed with desired quality according to several applications. In some cases specific parts are more important than other parts within a frame and these important parts must be reconstructed with high quality compared with the other parts and several schemes are suggested for such application and these schemes need to separate the important parts from a given frame, and also the syntax of shape, texture, and motion information must be defined for important parts and the other parts. But syntax rule in H.261, MPEG1 or MPEG2 is not suitable for our application because the syntax rules in the existing scheme can not express shape information for separating the important regions from each frame. So we propose a new syntax rule which represents the shape, texture and motion information in the circumstances where specific important parts exist in a frame.

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