• Title, Summary, Keyword: Identification

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Design of a Hierarchically Structured Gas Identification System Using Fuzzy Sets and Rough Sets (퍼지집합과 러프집합을 이용한 계층 구조 가스 식별 시스템의 설계)

  • Bang, Young-Keun;Lee, Chul-Heui
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.67 no.3
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    • pp.419-426
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    • 2018
  • An useful and effective design method for the gas identification system is presented in this paper. The proposed gas identification system adopts hierarchical structure with two level rule base combining fuzzy sets with rough sets. At first, a hybrid genetic algorithm is used in grouping the array sensors of which the measured patterns are similar in order to reduce the dimensionality of patterns to be analyzed and to make rule construction easy and simple. Next, for low level identification, fuzzy inference systems for each divided group are designed by using TSK fuzzy rule, which allow handling the drift and the uncertainty of sensor data effectively. Finally, rough set theory is applied to derive the identification rules at high level which reflect the identification characteristics of each divided group. Thus, the proposed method is able to accomplish effectively dimensionality reduction as well as accurate gas identification. In simulation, we demonstrated the effectiveness of the proposed methods by identifying five types of gases.

Construction of Probability Identification Matrix and Selective Medium for Acidophilic Actinomycetes Using Numerical Classification Data

  • Seong, Chi-Nam;Park, Seok-Kyu;Michael Goodfellow;Kim, Seung-Bum;Hah, Yung-Chil
    • Journal of Microbiology
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    • v.33 no.2
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    • pp.95-102
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    • 1995
  • A probability identification matrix of acidophilic Streptomyces was constructed. The phenetic data of the strains were derived from numerical classification described by Seong et al. The minimum number of diagnostic characters was determined using computer programs for calculation of different separation indices. The resulting matrix consisted of 25 clusters versus 53 characters. Theoretical evaluation of this matrix was achieved by estimating the chuster overlap and the identification scores for the Hypothetical Median Organisms (HMO) and for the representatives of each cluster. Cluster overlap was found to be relatively small. Identification scores for the HMO and the randomly selected representatives of each cluster were satisfactory. The matrix was assessed practically by applying the matrix to the identification of unknown isolates. Of the unknown isolates, 71.9% were clearly identified to one of eight clusters. The numerical classification data was also used to design a selective isolation medium for antibiotic-producing organisms. Four chemical substances including 2 antibiotics were determined by the DLACHAR program as diagnostic for the isolation of target organisms which have antimicrobial activity against Micrococcus luteus. It was possible to detect the increased rate of selective isolation on the synthesized medium. Theresults show that the numerical phenetic data can be applied to a variety of purposes, such as construction of identification matrix and selective isolation medium for acidophilic antinomycetes.

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A Study on the AR Identification of unknown system using Cumulant (Cumulant를 이용한 미지 시스템의 AR 식별에 관한 연구)

  • Lim, Seung-Gag
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.43 no.2
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    • pp.39-43
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    • 2006
  • This paper deals with the AR Identification of unknown system using cumulant, which is the 3rd order statistics of output signal in the presence of the noise signal. The algorithms for identification of unknown system we applies to the AR identification method using the cumulant which is possible to the guarantees of global convergence and the representation of amplitude and phase information of system among with the method of parametric modeling. In the process of identification, we considered unknown system to the one of AR system. After the generation of input signal, it was being passed through the system then We use the its output signal that the noise is added. As a result of identification of AR system by changing the signal to noise ratio, we get the fairly good results compared to original system output values and confirmed that the pole was located in the unit circle of z transform.

A visual identification key to Orchidaceae of Korea

  • Seo, Seon-Won;Oh, Sang-Hun
    • Korean Journal of Plant Taxonomy
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    • v.47 no.2
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    • pp.124-131
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    • 2017
  • Species identification is a fundamental and routine process in plant systematics, and linguistic-based dichotomous keys are widely used in the identification process. Recently, novel tools for species identification have been developed to improve the accuracy, ease to use, and accessibility related to these tasks for a broad range of users given the advances in information and communications technology. A visual identification key is such an approach, in which couplets consist of images of plants or a part of a plant instead of botanical terminology. We developed a visual identification key for 101 taxa of Orchidaceae in Korea and evaluated its performance. It uses short statements for image couplets to avoid misinterpretations by users. The key at the initial steps (couplets) uses relatively easy characters that can be determined with the naked eye. The final steps of the visual key provide images of species and information about distributions and flowering times to determine the species that best fit the available information. The number of steps required to identify a species varies, ranging from three to ten with an average of 4.5. A performance test with senior college students showed that species were accurately identified using the visual key at a rate significantly higher than when using a linguistic-based dichotomous key and a color manual. The findings presented here suggest that the proposed visual identification key is a useful tool for the teaching of biodiversity at schools, for the monitoring of ecosystems by citizens, and in other areas that require rapid, easy, and accurate identifications of species.

A Study of Correlation Between Phonological Awareness and Word Identification Ability of Hearing Impaired Children (청각장애 아동의 음운인식 능력과 단어확인 능력의 상관연구)

  • Kim, Yu-Kyung;Kim, Mun-Jung;Ahn, Jong-Bok;Seok, Dong-Il
    • Speech Sciences
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    • v.13 no.3
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    • pp.155-167
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    • 2006
  • Hearing impairment children possess poor underlying perceptual knowledge of the sound system and show delayed development of segmental organization of that system. The purpose of this study was to investigate the relationship between phonological awareness ability and word identification ability in hearing impaired children. 14 children with moderately severe hearing loss participated in this study. All tasks were individually administered. Phonological awareness tests consisted of syllable blending, syllable segmentation, syllable deletion, body-coda discrimination, phoneme blending, phoneme segmentation and phoneme deletion. Close-set Monosyllabic Words(12 items) and lists 1 and 2 of open-set Monosyllabic Words in EARS-K were examined for word identification. Results of this study were as follows: First, from the phonological awareness task, the close-set word identification showed a high positive correlation with the coda discrimination, phoneme blending and phoneme deletion. The open-set word identification showed a high positive correlation with phoneme blending, phoneme deletion and phoneme segmentation. Second, from the level of phonological awareness, the close-set word identification showed a high positive correlation with the level of body-coda awareness and phoneme awareness while the open-set word identification showed a high positive correlation only with the level of phoneme awareness.

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A study of the influence of Brand Personality and Brand Identification on Customers' Loyalty focusing on the Fast-Fashion (패스트패션의 브랜드 개성과 브랜드 동일시가 고객충성도에 미치는 영향에 관한 연구)

  • Kim, Yong-Bum;Bang, Dong-Won
    • Proceedings of the Safety Management and Science Conference
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    • pp.185-204
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    • 2011
  • Fast Fashion (fast fashion) is to reflect the latest trends and quickly create an immediate and quick with words related to clothing to distribute immediately reflect the latest fashion design, a relatively low cost, rapid product turnover means to succeed in fashion or business. The popularity of fast fashion is growing in the recent domestic fashion market. In this study, fast-fashion consumers' purchasing behavior recognition for brand identification and brand personality, brand reputation and brand identification, brand attitude, and affect the relationship between customer loyalty will be discussed. The results of this study can be summarized as follows. First, In this study, based on existing studies, brand personality and brand identification through a process that affects customer loyalty reaffirmed. Second, the 5 dimensions of brand personality and brand identification of the factors found by the sophistication and unique. Third, the brand's reputation in the brand identification had a significant impact. Fourth, brand identification, brand attitude and the impact on customer loyalty was significant.

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The Effects of Consumer Brand Identification and Brand Attachment to Brand Equity (소비자의 브랜드 동일시 및 브랜드 애착이 브랜드 자산에 미치는 영향)

  • Rhee, Young-Ju
    • Journal of the Korean Society of Clothing and Textiles
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    • v.34 no.5
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    • pp.797-807
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    • 2010
  • This study investigates the effects of consumer brand identification and brand attachment to brand equity. 332 surveys were collected from male and female university students in Seoul. In each survey, respondents were asked to choose one favorite fashion brand that they often purchase and answer questions regarding brand identification, brand attachment, and brand equity. The results were analyzed using SPSS package 12.0 and AMOS 5.0 program and factor analysis, reliability analysis, and path analysis were conducted. After the factor analysis, 3 factors were found under brand identification, 4 factors under brand attachment, and 4 factors under brand equity. The Cronbach's $\alpha$ of brand identification was .84, the brand attachment was .80, and the brand equity was .81. The results of this study show that brand identification had a positive effect on brand attachment that had a positive effect on brand equity. Additional results show that both brand identification and brand attachment had a positive direct effect on brand equity; however, brand attachment had a higher effect on brand equity.

The Study Application of Identification Based on Small Units USN(Ubiquitous Sensor Network) (소부대급 USN 기반 전장감시체계 적용 방안)

  • Kim, Do-Heon;Kim, Do-Yeob
    • Journal of the Korea Institute of Military Science and Technology
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    • v.13 no.2
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    • pp.283-295
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    • 2010
  • Although some large units, upper than division, have a identification system, most of them depend on US military. Especially, the company unit can not but execute GOP(General OutPost) guidance and battles inefficiently because they apply the method of conventional identification system. urrently, North Korea causes the high tension of peninsular by experimenting nuclear weapons and launching ICBM(Intercontinental Ballistic Missile). In addition, ROK military will reduce the number of personnel and division through reorganizing the structure into NCW (Network Centric Warfare) until 2020. These unstable situation and future tendency require the high technical identification system based on USN(Ubiquitous Sensor Network) in company unit level. his study suggests the method that the company unit apply the identification system based on USN which distinguish between friend and foe in the warfare. The identification system concludes the results through experiment of military analysis model (AWAM; Army Weapon effectiveness Analysis Model). After analyzing the experiment results, it indicates the budget requirement and operational operability of identification system. This will be able to improves battle efficiency and to prevent damages of friendly forces.

Method of Object Identification Using Joint Data of Multi-Joint Robotic Gripper for Bin-picking (빈-피킹을 위한 다관절 로봇 그리퍼의 관절 데이터를 이용한 물체 인식 기법)

  • Park, Jongwoo;Park, Chanhun;Park, Dong Il;Kim, DooHyung
    • Journal of The Korean Society of Manufacturing Technology Engineers
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    • v.25 no.6
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    • pp.522-531
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    • 2016
  • In this study, we propose an object identification method for bin-picking developed for industrial robots. We identify the grasp posture and the associated geometric parameters of grasp objects using the joint data of a robotic gripper. Prior to grasp identification, we analyze the grasping motion in a low-dimensional space using principle component analysis (PCA) to reduce the dimensions. We collected the joint data from a human hand to demonstrate the grasp-identification algorithm. For data acquisition of the human grasp data, we conducted additional research on the motion characteristics of a human hand. We explain the method for using the algorithm of grasp identification for bin-picking. Finally, we present a subject for future research using our proposed algorithm of grasp model and identification.

Fashion Brand Attitude of Tweenagers - Focused on Brand Awareness, Image, Identification and Loyalty - (트윈세대의 패션 브랜드태도 - 인지도, 이미지, 동일시, 충성도를 중심으로 -)

  • Han, Ki-Hyang;Won, Myung-Sim
    • Journal of the Korean Society of Costume
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    • v.66 no.1
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    • pp.90-107
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    • 2016
  • The purpose of this study was to examine the fashion brand attitude of tweenagers, with a focus on brand awareness, image, identification and loyalty. The study analysed 541 fifth and sixth-grade students in Seoul elementary schools. Major statistical methods used for this study were Cronbach's alpha analysis, confirmatory factor analysis, and path analysis with SPSS 19.0 and AMOS 19.0. Brands selected for this study were "NIKE" and "BEANPOLE KIDS". The result of this study was as follows: First, the study showed that both "NIKE" and "BEANPOLE KIDS" had 4 significant routes from the research model. Brand awareness had influence on brand image; brand image had influence on brand identification and brand loyalty; and brand identification had influence on brand loyalty. Second, using the bootstrapping to verify the significance of the total effect and indirect effect, brand awareness had a significant indirect effect on brand identification and brand loyalty; brand awareness did not have any direct effect on brand identification and brand loyalty for both "NIKE" and "BEANPOLE KIDS". Also, the total effect of brand awareness on brand identification and brand loyalty was significant. The result of this study showed the development potential to the fashion companies targeting tweenagers.