• Title/Summary/Keyword: string

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Representation of Texts into String Vectors for Text Categorization

  • Jo, Tae-Ho
    • Journal of Computing Science and Engineering
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    • v.4 no.2
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    • pp.110-127
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    • 2010
  • In this study, we propose a method for encoding documents into string vectors, instead of numerical vectors. A traditional approach to text categorization usually requires encoding documents into numerical vectors. The usual method of encoding documents therefore causes two main problems: huge dimensionality and sparse distribution. In this study, we modify or create machine learning-based approaches to text categorization, where string vectors are received as input vectors, instead of numerical vectors. As a result, we can improve text categorization performance by avoiding these two problems.

Design of String Pattern Matching (SPM) Processor (문자열 패턴 매칭 (SPM:String Pattern Matching)프로세서의 설계)

  • Kook, Il-Ho;Cho, Won-Kyung
    • Proceedings of the KIEE Conference
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    • 1988.07a
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    • pp.659-661
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    • 1988
  • SPM is MDC Processor for string pattern expressed in directional chain code. In this paper we consider the string pattern matching algorithm (Leve-nstein Algorithm) whitch is portion of Dynamic Programing, and propose architecture of SPM and simulate it on the R-T level to evaluate its architecture. We used the C language as the hardware description language, and developed it on the IBM PC/AT Zenix system V OS environment.

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A Study on the Design of Functional Playing Costumes - focusing on Female Harpist - (악기 종류에 따른 기능적인 연주복 디자인 연구 - 성인 여성의 하프 연주복을 중심으로 -)

  • 여승화;정삼호
    • Journal of the Korean Society of Costume
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    • v.54 no.4
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    • pp.75-84
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    • 2004
  • Stage costumes perform not only the instrumental but also the expressive functions. The major goal of this study is to develop the functional and aesthetic costume designs for musical players considering the characteristics of instruments. players’ postures. The scope of this study is restricted to the musical costumes for female adult soloists playing the wind and string instruments. This study is composed of theory research, empiricalresearch and manufacturing a real costume. First, theory research contains theory of musical costumes and that of pure musical areas. Concept, characteristics and wearing effects are analysed in theory of musical costumes. Second, designs of instruments and playing postures are analysed in the theory of pure musical areas. Proper and improper designs are compared based on the survey asking the favorite designs of 56 wind and string players. Third, I manufacture a stage costume for a harpist. The conclusions of this study are as follows. First, wind and string players think the functionality of costumes more importantly than the esthetic sense. And there are differences in design preferences for different playing postures. Second, string Players basically use arms, fingers and the upper body. Wind players use fingers more than string players and do abdominal breathing. Third, string players think the design of arms and sleeves because of frequent usage of bow and prefer the design without sleeves. On the contrary, wind players think the silhouette importantly because of standing playing posture. Fourth, players don't think that the accessory is not important and want it so long as it doesn't hinder playing. Fifth, shoes plays more important role than costume in case of playing posture with using pedals and moving legs frequently. Lastly, both wind and string players prefer the design with simplicity and comfort most.

A Study on the Many Strings Pendants in the Period of the Three States (삼국시대 다조식 수식 양식에 대한 연구)

  • 김문자
    • Journal of the Korean Home Economics Association
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    • v.37 no.10
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    • pp.1-10
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    • 1999
  • The purpose of this study is to classify of the many strings Pendants in old tombs of Three Kingdom States. Many strings Pendants was usually used for earrings, but scarcely used for crown and Yopae(:腰佩). They were classified Sehwhan(:細 ) type that was formed of 2-4 string and Taewhan(太環) type that was formed of 2-3 string. Sehwhan 2 string Pendants was found in most of the old tombs in Kokuryo, Pacjae, ancient Silla, Gaya. Sehwhan 3-4 string Pendants was excavated from the only ancient Silla tombs. Sehwhan 3 strings Pendants was transmitted to Japan. Taewhan type that was formed of 2-3 string Pendants excavated from the only ancient Silla tombs.

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Modified Version of SVM for Text Categorization

  • Jo, Tae-Ho
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.8 no.1
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    • pp.52-60
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    • 2008
  • This research proposes a new strategy where documents are encoded into string vectors for text categorization and modified versions of SVM to be adaptable to string vectors. Traditionally, when the traditional version of SVM is used for pattern classification, raw data should be encoded into numerical vectors. This encoding may be difficult, depending on a given application area of pattern classification. For example, in text categorization, encoding full texts given as raw data into numerical vectors leads to two main problems: huge dimensionality and sparse distribution. In this research, we encode full texts into string vectors, and apply the modified version of SVM adaptable to string vectors for text categorization.

Inverted Index based Modified Version of K-Means Algorithm for Text Clustering

  • Jo, Tae-Ho
    • Journal of Information Processing Systems
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    • v.4 no.2
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    • pp.67-76
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    • 2008
  • This research proposes a new strategy where documents are encoded into string vectors and modified version of k means algorithm to be adaptable to string vectors for text clustering. Traditionally, when k means algorithm is used for pattern classification, raw data should be encoded into numerical vectors. This encoding may be difficult, depending on a given application area of pattern classification. For example, in text clustering, encoding full texts given as raw data into numerical vectors leads to two main problems: huge dimensionality and sparse distribution. In this research, we encode full texts into string vectors, and modify the k means algorithm adaptable to string vectors for text clustering.

Development of Live-line Insulator Inspection Robot System for both Suspension and Tension Insulator Strings (현수/내장애자련 겸용 활선애자 점검로봇 시스템 개발)

  • Park, Joon-Young;Lee, Jae-Kyung;Oh, Ki-Yong
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.60 no.6
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    • pp.1239-1244
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    • 2011
  • In our previous paper, we developed an insulator inspection robot system for a suspension insulator string in the 345kV power transmission line. However, this robot cannot be applied to a tension insulator string, because its constituent insulators are different in diameter and height from those of a suspension insulator string. To solve this problem, we developed a new live-line insulator inspection robot system that is applicable to both suspension and tension insulator strings. We confirmed its effectiveness through live-line performance tests.

Boundary Control of a Tensioned Elastic Axially Moving String

  • Kim, Chang-Won;Hong, Keum-Shik;Park, Hahn
    • 제어로봇시스템학회:학술대회논문집
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    • 2005.06a
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    • pp.2260-2265
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    • 2005
  • In this paper, an active vibration control of a tensioned elastic axially moving string is investigated. The dynamics of the translating string are described by a non-linear partial differential equation coupled with an ordinary differential equation. A time varying control in the form of right boundary transverse motions is proposed in stabilizing the transverse vibrations of the translating continuum. A control law based on Lyapunov's second method is derived. Exponential stability of the closed-loop system is verified. The effectiveness of the proposed controller is shown through simulations.

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