• 제목/요약/키워드: Characteristics Method

검색결과 36,833건 처리시간 0.055초

Automatic Music Recommendation System based on Music Characteristics

  • Kim, Sang-Ho;Kim, Sung-Tak;Kwon, Suk-Bong;Ji, Mi-Kyong;Kim, Hoi-Rin;Yoon, Jeong-Hyun;Lee, Han-Kyu
    • 한국HCI학회:학술대회논문집
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    • 한국HCI학회 2007년도 학술대회 1부
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    • pp.268-273
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    • 2007
  • In this paper, we present effective methods for automatic music recommendation system which automatically recommend music by signal processing technology. Conventional music recommendation system use users’ music downloading pattern, but the method does not consider acoustic characteristics of music. Sometimes, similarities between music are used to find similar music for recommendation in some method. However, the feature used for calculating similarities is not highly related to music characteristics at the system. Thus, our proposed method use high-level music characteristics such as rhythm pattern, timbre characteristics, and the lyrics. In addition, our proposed method store features of music, which individuals queried, to recommend music based on individual taste. Experiments show the proposed method find similar music more effectively than a conventional method. The experimental results also show that the proposed method could be used for real-time application since the processing time for calculating similarities between music, and recommending music are fast enough to be applicable for commercial purpose.

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A Study on Lubricative Characteristics of Negative Pressure Slider

  • Hwang, Pyung;Park, Sang-Shin;Kim, Eun-Hyo
    • KSTLE International Journal
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    • 제3권2호
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    • pp.110-113
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    • 2002
  • The lubricative characteristics of negative pressure slider were performed by using coordinate transform method. Governing equation is derived by applying generalized coordinate system to the divergence formulation method. This method makes it possible to deal with an arbitrary configuration of a lubricated surface. The pressure profile of the slider is calculated. These results are compared to that from direct numerical method. The steady-state, including minimum film thickness, pitching and rolling angle are calculated by multi-dimensional Newton-Rapshon method. The stiffness and damping characteristics are also calculated.

자바 프로그램의 런타임 특성 분석을 위한 Kaffe의 확장 (The Extension of Kaffe to Analyse Runtime Characteristics of a Java Program)

  • 신범주;이창우;이완직
    • 한국IT서비스학회지
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    • 제6권2호
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    • pp.145-152
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    • 2007
  • This paper describes an extension of Kaffe JVM which enables to extract runtime characteristics of a Java program. The runtime characteristics include frequency of method call instruction, ratio of library method call and ratio of method whose runtime is less than compile time. It also represents ratio of method called only once, polymorphicity of virtual call and distribution of method size called in runtime. This paper analyses runtime features of the SciMark benchmark suite using the extended Kaffe.

Hot Wall 법의 반복 증착에 의해 제작한 ZnS:Mn 박막 엘렉트로루미네센스의 특성 (Characteristics of Zns:Mn Thin Film Electroluminescences Prepared by a Repeated Deposition of Hot Wall Method)

  • 이상태
    • 한국항해학회지
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    • 제25권4호
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    • pp.435-442
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    • 2001
  • A new technique to grow a manganese-doped zinc-sulfide(ZnS:Mn) has been proposed using the repeated deposition of the Hot Wall method. The optical characteristics and crystallinity for the ZnS and ZnS:Mn thin films deposited on a quartz glass substrate by the method were investigated. Also, The ZnS:Mn thin film elcetroluminescent devices were fabricated by the method to study luminescence characteristics. All films showed (111)-oriented cubic structure. By the repeated deposition, the deposition rates were decreased, and the optical characteristics and crystalline properties were improved, which clarifies that the method is effective to deposit the thin films with good crystallinity Futhermore, the crystallinity was more improved by the doping of Mn. Only one peak emission at around 585nm originating from Mn luminescent center is observed In the photoluminescent and electroluminescent spectra of ZnS:Mn films and the luminance of the ZnS:Mn-based thin film electroluminescent devices was obtained below 60cd/$m^2$ . The optical and crystalline properties, luminescence characteristics are discussed in terms of the effects of the repeated deposition and Mn-doping.

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Acceleration of step and linear discontinuous schemes for the method of characteristics in DRAGON5

  • Hebert, Alain
    • Nuclear Engineering and Technology
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    • 제49권6호
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    • pp.1135-1142
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    • 2017
  • The applicability of the algebraic collapsing acceleration (ACA) technique to the method of characteristics (MOC) in cases with scattering anisotropy and/or linear sources was investigated. Previously, the ACA was proven successful in cases with isotropic scattering and uniform (step) sources. A presentation is first made of the MOC implementation, available in the DRAGON5 code. Two categories of schemes are available for integrating the propagation equations: (1) the first category is based on exact integration and leads to the classical step characteristics (SC) and linear discontinuous characteristics (LDC) schemes and (2) the second category leads to diamond differencing schemes of various orders in space. The acceleration of these MOC schemes using a combination of the generalized minimal residual [GMRES(m)] method preconditioned with the ACA technique was focused on. Numerical results are provided for a two-dimensional (2D) eight-symmetry pressurized water reactor (PWR) assembly mockup in the context of the DRAGON5 code.

크리에이티브 패션디자인 발상법 연구 -NM법(T형)과 시네틱스를 중심으로- (A Study on Idea Conception Method of Creative Fashion Design -Focused on NM Method (T type) & Synetics-)

  • 임미지;박주희
    • 한국의류학회지
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    • 제41권1호
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    • pp.71-83
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    • 2017
  • This research suggests a new idea conception method for creative thinking to develop a creative fashion design. The common characteristics of the design area, the unique characteristics of the fashion design, and idea conception method for creative thinking were analyzed and reviewed to develop a creative fashion design research model. Based on this, the fashion design research model was planned through an attempt to graft a new idea conception method on an existing method to utilize the advantage of it suitable for fashion design characteristics and designated as an idea conception method for a creative fashion design research model. We developed 10 designs with a full awareness of the research model steps; subsequently, the effectiveness was confirmed through the evaluation phase of the research model that utilized the idea conception method. This research has significance in that the research model utilizing idea conception method that rarely addressed in precedent research was developed with the idea conception method as a research subject by drawing the characteristics for an idea conception of fashion design and new approach was tried that emphasized the advantages of the existing method.

통계적 기법을 이용한 에칭공정의 시뮬레이션 (Simulation of Etching Process Using Statistical Method)

  • 정흥철;정지원;최경민;김덕줄
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2004년도 추계학술대회
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    • pp.1611-1616
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    • 2004
  • The objective of this study is to simulate the etching characteristics under different process parameters for the optimization of etching process. The etching characteristics such as the etching factor were investigated under different operating conditions and compared with the spray characteristics. The spray characteristics were measured by using Phase Doppler Anemometer. The correlation between the etching characteristics and the spray characteristics was analyzed to simulate the etching characteristics under the actual parameters of the etching process. The parameters were distance of nozzle tip and pipe pitch. To improve the uniformity and value of etching factor in the etching process, the process parameters should be designed optimally. The distribution of spray was simulated by the Monte-Carlo Method and the process parameters were optimized by the design of experiments(DOE).

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이미지 센서 모듈의 광학적 특성 테스트를 위한 표준화된 기술 방법 (Standardized Description Method of Optical Characteristics Tests for Image Sensor Modules)

  • 이성수
    • 전기전자학회논문지
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    • 제18권4호
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    • pp.603-611
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    • 2014
  • 이미지 센서와 렌즈를 모듈 상에 고정할 때, 기계적인 오차로 인해 취득된 영상의 기울임 또는 회전이 발생하기도 하고 화각이 좁아지기도 한다. 따라서 테스트 장비에서 이미지 센서 모듈의 광학적 특성을 테스트하여야 한다. 본 논문에서는 이미지 센서 모듈의 광학적 특성을 테스트하는 방법을 설명하고, 이를 영상 취득 특성과 유사한 방식으로 표준화한 기술 방법을 제안한다. 제안된 방법은 테스트 장비가 영상 취득 특성과 광학적 특성을 함께 테스트하는데 도움이 된다.

쇽압쇼바 감쇠력 특성의 실험적 설계법 연구 (Empirical Design Method for the Damping Force Characteristics of Shock Absorbers)

  • 백운경;김창민
    • 동력기계공학회지
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    • 제15권4호
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    • pp.11-18
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    • 2011
  • A Shock absorber is one of the most important components in vehicle suspension systems. In general, many repeated analyses are required for the design of a shock absorber to satisfy the suspension characteristics of a specific automobile, like fluid flow analysis and mechanical analysis. The purpose of this study is to develop a fast design tool for shock absorber designers. One of the efficient solutions for this can be an empirical design method considering phenomenological effects from the shock absorber design variables. In order to extract the shock absorber's experimental characteristics, we used Taguchi method. This method showed that which design variables have major effects for the shock absorber's damping characteristics. This empirical design method also showed the direction of the design changes to satisfy the designer's intension.

화자인식에서 차분을 이용한 새로운 데이터 추출 방법 (New Data Extraction Method using the Difference in Speaker Recognition)

  • 서창우;고희애;임영환;최민정;이윤정
    • 음성과학
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    • 제15권3호
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    • pp.7-15
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    • 2008
  • This paper proposes the method to extract new feature vectors using the difference between the cepstrum for static characteristics and delta cepstrum for dynamic characteristics in speaker recognition (SR). The difference vector (DV) which it proposes from this paper is containing the static and the dynamic characteristics simultaneously at the intermediate characteristic vector which uses the deference between the static and the dynamic characteristics and as the characteristic vector which is new there is a possibility of doing. Compared to the conventional method, the proposed method can achieve new feature vector without increasing of new parameter, but only need the calculation process for the difference between the cepstrum and delta cepstrum. Experimental results show that the proposed method has a good performance more than 2.03%, on average, compared with conventional method in speaker identification (SI).

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