• Title/Summary/Keyword: Symbolic Representation

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Time series representation for clustering using unbalanced Haar wavelet transformation (불균형 Haar 웨이블릿 변환을 이용한 군집화를 위한 시계열 표현)

  • Lee, Sehun;Baek, Changryong
    • The Korean Journal of Applied Statistics
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    • v.31 no.6
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    • pp.707-719
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    • 2018
  • Various time series representation methods have been proposed for efficient time series clustering and classification. Lin et al. (DMKD, 15, 107-144, 2007) proposed a symbolic aggregate approximation (SAX) method based on symbolic representations after approximating the original time series using piecewise local mean. The performance of SAX therefore depends heavily on how well the piecewise local averages approximate original time series features. SAX equally divides the entire series into an arbitrary number of segments; however, it is not sufficient to capture key features from complex, large-scale time series data. Therefore, this paper considers data-adaptive local constant approximation of the time series using the unbalanced Haar wavelet transformation. The proposed method is shown to outperforms SAX in many real-world data applications.

Formalization of Ladder Diagram Semantics Using Coq (증명보조기 Coq을 이용한 래더 다이어그램 의미구조의 정형화)

  • Shin, Seung-Cheol
    • Journal of KIISE:Software and Applications
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    • v.37 no.1
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    • pp.54-59
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    • 2010
  • Special-purpose microcontrollers PLCs have been widely used in the area of industrial automation. For the research of analysis and verification for PLC programs, first of all we have to specify formal sematics of PLC programming languages. This paper defines formally the operational semantics of LD language. After we transform the graphical language LD into its textual representation Symbolic LD, we give semantics of Symbolic LD since LD language is a graphical language. This paper defines the natural sematics of Symbolic LD and formalizes it in Coq proof assistant.

Analytic Linearization of Symbolic Nonlinear Equations (기호 비선형 방정식의 해석적 선형화)

  • Song, Sung-Jae;Moon, Hong-Ki
    • Journal of the Korean Society for Precision Engineering
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    • v.12 no.6
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    • pp.145-151
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    • 1995
  • The first-order Taylor series expansion can be evaluated analytically from the formulated symbolic nonlinear dynamic equations. A closed-form linear dynamic euation is derived about a nominal trajectory. The state space representation of the linearized dynamics can be derived easily from the closed-form linear dynamic equations. But manual symbolic expansion of dynamic equations and linearization is tedious, time-consuming and error-prone. So it is desirable to manipulate the procedures using a computer. In this paper, the analytic linearization is performed using the symbolic language MATHEMATICA. Two examples are given to illustrate the approach anbd to compare nonlinear model with linear model.

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A Study on Symbolism of Chairs in the Viewpoint of Human Essential Desires (인간의 본질적 욕구의 관점에서의 본 의자의 상징성에 관한연구)

  • Min, Chan-Hong;Yoon, Young
    • Korean Institute of Interior Design Journal
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    • no.17
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    • pp.37-44
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    • 1998
  • Chair is one of objects which are closely connected with human body and is a symbol which represents human essence and culture. Symbolism embodies the meaning of expression through transfering the immaterial structure to tangible form. Therefore chair embodies the essential internal desires of human by means of its symbolic representation. In order to understand the essential human desires included in the symbolism of chair it is necessary to consider these desires with respect to cultural and historical context. in this study four essential internal desires of human are investigated through the symbolic representation of chair that is the desires on human psychological comfort authority freedom and eroticism. The purpose of this study is to emphasize the necessity of the design approach based on the understanding of essential internal desires of human which is pursued from the object by user.

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Analysis on Signification of Actant for Representation in Dumb Ways to Die - as the Centre Semiotic Analysis of A. J. Greimas (Dumb Ways to Die에서 재현된 행위소의 의미해석작용 분석 - A.J . 그레마스의 기호학을 중심으로)

  • Kwon, Sangwoo
    • Journal of Korea Multimedia Society
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    • v.19 no.6
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    • pp.1095-1105
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    • 2016
  • This study is semiotic analysis about 'dumb ways to die' that is produced by Melbourne Railway of Australia in 2012. By analyzing the symbolic representations through 'Actants model' of A.J. Greimas, extract the relationship between signification of the represented object in 'dumb ways to die'. Greimas' model helps to analyze the semiotic interpretation action that occurs above a layer of discourse. In addition, this study is to compare the property to distinguish the Semiotic 'Actants' to cause the behavior of the recipient by represented in the same ideological situation. This can determine the properties of the signification and gauge the level of symbolic images that are reproduced in the discourse process. Accordingly, guidance to become a developer by extracting the reproduction principle of the video that causes a user's action.

Landscape Drawing as a Text: Practical and Theoretical Approach (텍스트로서의 조경드로잉 - 읽기의 틀과 실제 -)

  • 이광빈;조정송
    • Journal of the Korean Institute of Landscape Architecture
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    • v.27 no.1
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    • pp.54-63
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    • 1999
  • The Landscape drawing is used as main media in landscape design process like the language in daily life for human. Designers input many intentions and meaningful words in design process through landscape drawing. The common purpose of landscape drawing is to represent reality effectively, even though it has variable visual forms and materiality. The representation in landscape drawing in metaphorical as well as visual and functional. But current tendency is inclined to use landscape drawing in a functional aspect for visual representation and the landscape drawing is utilized straight-forwardly rather than metaphorically for clear communication. Such recognition on landscape drawing results from the difficulty to accept the symbolic aspect of the drawing. The difficulty makes the utilization and the interpretation of landscape drawing stay at conventional level in following visible factors. For the sake of solving the difficulty this study considers landscape drawing as the text that contains readable objects and symbolic words. This study presents layer-methods for reading a landscape drawing as a text; situational and contextural reading, iconological reading and reading the subject of drawing.

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A Study on the Transformation and Meaning of Landscape Architectural Drawing (조경드로잉의 변천과 의미에 관한 연구)

    • Journal of the Korean Institute of Landscape Architecture
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    • v.27 no.2
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    • pp.140-151
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    • 1999
  • The purpose of this study is to trace historical changes and to show broad spectrums in landscape architectural drawing. Drawing has been both a locus of interpreting a site and a vehicle of imagining the new landscape. The designed landscape might be influenced by the way to draw in landscape design. Despite of its importance, landscape architectural drawing has rarely been discussed. Here, the drawing will be understood as theoretical issues and texts for criticism. Recently, the drawing has primarily been recognized in functional and instrumental ways. The stereotypes office drawings such as plan, section, perspective, axonometric are typical examples. Its symbolic and metaphoric dimensions have been seriously diminished. As a result, the poetic power in the designed landscape might be devastated. Composite drawing, notation are the alternative drawings to overcome the above mentioned dilemma along with the adaption of collage and photomontage. Finally, I would argue that landscape architectural drawing can be a creative tool to elicit the idea and to reveal the trace of memory. It could be also a poetic locus to postulating the vision. Designers should utilize both traditional drawing and experimental drawing in order to reconcile the instrumental representation with the symbolic representation.

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Design of Genetic Algorithms-based Fuzzy Polynomial Neural Networks Using Symbolic Encoding (기호 코딩을 이용한 유전자 알고리즘 기반 퍼지 다항식 뉴럴네트워크의 설계)

  • Lee, In-Tae;Oh, Sung-Kwun;Choi, Jeoung-Nae
    • Proceedings of the KIEE Conference
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    • 2006.04a
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    • pp.270-272
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    • 2006
  • In this paper, we discuss optimal design of Fuzzy Polynomial Neural Networks by means of Genetic Algorithms(GAs) using symbolic coding for non-linear data. One of the major subject of genetic algorithms is representation of chromosomes. The proposed model optimized by the means genetic algorithms which used symbolic code to represent chromosomes. The proposed gFPNN used a triangle and a Gaussian-like membership function in premise part of rules and design the consequent structure by constant and regression polynomial (linear, quadratic and modified quadratic) function between input and output variables. The performance of the proposed model is quantified through experimentation that exploits standard data already used in fuzzy modeling. These results reveal superiority of the proposed networks over the existing fuzzy and neural models.

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A Study on the Psychological Response Scale of the Feature Characteristics of the Main Gates of Universities (대학교 정문의 형태적 특성에 대한 심리적 반응척도에 관한 연구)

  • Kwon, Bo-Min;Lee, Kang-Hee;Kim, Gon
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2003.11a
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    • pp.301-306
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    • 2003
  • The main gate of university is a symbolic role to grasp the its activities within a limited area. The form or shape is various at its circumstances such as activity type, region, etc. The study aimed at offering the information to grasp the fixed quantity to an university gate plan which analyzed a psychological judgment criteria according to form or shape characteristics of the university main gate. It selected ten universities through a classification of the types. The twenty adjective phrases were extracted by review of the further research. After then, it extracted to draw high adjective in observers visual image formation. This study analyzed the preference, symbolized representation of the university main gate. The results are summarized as follows : 1. The symbol and representation of form has a high correlation. In other words, the symbolic scale would be high positively when the representation scale be high. 2. Eight items among the twenty adjective items appeared to explain the university main gates. The twelve items of them wouldn't be related to grasp the main gate

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A Study on the Anti-Architectural Thinking of Georges Bataille (조르주 바타유의 반건축적 사유에 관한 연구)

  • Khang, Hyuk
    • Journal of architectural history
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    • v.30 no.6
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    • pp.59-70
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    • 2021
  • Compared with other philosophers and writers who were engaged in architecture Georges Bataille was extraordinary. Because he produced anti-architectural discourse. This paper studied the Bataille's thinking with relation to architecture that used as a fundamental and privileged metaphor. Philosophy regarded as the foundation of all academic discipline needed architecture in order to show its system was durable, synthetic and hierarchical. The will to build a solid system of reasoning made philosophy to call architecture to pretend that it is structurally stable. Metaphor and representation is inevitable in philosophy. Then architectural image that supported by discourse of philosophy became a representation of sociocultural system. According to Bataille architectural representation justified existing power and belief system. With architecture Identity always represented the true and good. This kind of architectonic thinking erased the Other that allowed metaphysics and symbolic Against architecture Bataille produced writings of violation and excess corresponding to labyrinth. Labyrinth in fact made a formal structure of architecture possible to be a metaphor of symbolic system. Bataille's anti-architectural thinking paradoxically shows the importance of Architecture and give a chance to rethink the ethical aspect of architecture instead of aesthetics.