• 제목/요약/키워드: person-independent

검색결과 265건 처리시간 0.021초

A Comparative Study of Oswestry Back Pain Disability Questionnaire Versus Computer Adaptive Testing for Measuring Back Pain

  • Choi, Bong-Sam
    • 한국전문물리치료학회지
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    • 제20권4호
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    • pp.22-31
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    • 2013
  • The aim of the present study was to compare measurement precisions of the Oswestry Back Pain Disability Questionnaire (ODQ) and a computer adaptive testing (CAT) method. The ODQ has been regarded as one of the most reliable condition-specific measure for back pain for decades. Cross-sectional study was carried out with two independent convenient samples from two out-patient rehabilitation clinics for back pain ($n_1=42$) and non-back pain group ($n_2=42$). Participants were asked to fill out the ODQ and CAT of International Classification of Functioning, Disability and Health-Activity Measure (ICF-AM). A series of Rasch analyses were performed to calculate person ability measures. The CAT measures had greater relative precision in discriminating the groups than did the ODQ measure in comparisons of the relative precision. The CAT measure appears to be more effective than did the ODQ measure in terms of measurement precision. By administering test items calibrated in a way, CAT measures using item response theory may promise a means with measurement precision as well as efficiency.

손동작 인식 시스템을 위한 동적 학습 알고리즘 (Dynamic Training Algorithm for Hand Gesture Recognition System)

  • 김문환;황선기;배철수
    • 한국정보전자통신기술학회논문지
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    • 제2권2호
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    • pp.51-56
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    • 2009
  • 본 논문에서는 카메라-투영 시스템에서 비전에 기반을 둔 손동작 인식을 위한 새로운 알고리즘을 제안하고 있다. 제안된 인식방법은 정적인 손동작 분류를 위하여 푸리에 변환을 사용하였다. 손 분할은 개선된 배경 제거 방법을 사용하였다. 대부분의 인식방법들이 같은 피검자에 의해 학습과 실험이 이루어지고 상호작용에 이전에 학습단계가 필요하다. 그러나 학습되지 않은 다양한 상황에 대해서도 상호작용을 위해 동작 인식이 요구된다. 그러므로 본 논문에서는 인식 작업 중에 검출된 불완전한 동작들을 정정하여 적용하였다. 그 결과 사용자와 독립되게 동작을 인식함으로써 새로운 사용자에게 신속하게 온라인 적용이 가능하였다.

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손동작 인식 시스템을 위한 동적 학습 알고리즘 (Dynamic Training Algorithm for Hand Gesture Recognition System)

  • 배철수
    • 한국정보통신학회논문지
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    • 제11권7호
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    • pp.1348-1353
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    • 2007
  • 본 논문에서는 카메라-투영 시스템에서 비전에 기반을 둔 손동작 인식을 위한 새로운 알고리즘을 제안하고 있다. 제안된 인식방법은 정적인 손동작 분류를 위하여 푸리에 변환을 사용하였다. 손 분할은 개선된 배경 제거 방법을 사용하였다. 대부분의 인식방법들이 같은 피검자에 의해 학습과 실험이 이루어지고 상호작용에 이전에 학습단계가 필요하다. 그러나 학습되지 않은 다양한 상황에 대해서도 상호작용을 위해 동작 인식이 요구된다. 그러므로 본 논문에서는 인식 작업 중에 검출된 불완전한 동작들을 정정하여 적용하였다. 그 결과 사용자와 독립되게 동작을 인식함으로써 새로운 사용자에게 신속하게 온라인 적용이 가능하였다.

영어권 학습자를 위한 한국어 구어 문법 교육 - 보고 표지 '-대'를 중심으로 - (Teaching Grammar for Spoken Korean to English-speaking Learners: Reported Speech Marker '-dae'.)

  • 김영아;조인정
    • 한국어교육
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    • 제23권1호
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    • pp.1-23
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    • 2012
  • The development of corpus in recent years has attracted increased research on spoken Korean. Nevertheless, these research outcomes are yet to be meaningfully and adequately reflected in Korean language textbooks. The reported speech marker '-dae' is one of these areas that need more attention. This study investigates whether or not in textbooks '-dae' is clearly explained to English-speaking learners to prevent confusion and misuse. Based on a contrastive analysis of Korean and English, this study argues three points: Firstly, '-dae' should be introduced to Korean learners as an independent sentence ender rather than a contracted form of '-dago hae'. Secondly, it is necessary to teach English-speaking learners that '-dae' is not equivalent to the English report speech form. It functions more or less as a third person marker in Korean. Learners should be informed that '-dae' is used for statements in English, if those statements were hearsay but the source of information does not need to be specified. This is a very distinctive difference between Korean and English and should be emphasized in class when 'dae' is taught. Thirdly, '-dae' should be introduced before indirect speech constructions, because it is mainly used in simple statements and the frequency of '-dae' is very high in spoken Korean.

'아귀찜'의 등장과 확산 (Appearance and Diffusion of Aguijjim (아귀찜))

  • 이규진
    • 한국식생활문화학회지
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    • 제34권1호
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    • pp.1-13
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    • 2019
  • This study was conducted to track the appearance of Aguijjim and its popularity on the national level. Furthermore, changes in the monkfish recipe and how they impacted the consumption of monkfish were investigated. It is assumed that monkfish was consumed by Japanese in Korea during the Japanese colonial era. After liberation, people cooked the fish as soup. In the 1960s, Aguijjim was invented in Masan. There is great controversy regarding how the dish was born. It has been asserted that it was created by one specific person, that refugees with insufficient food developed, and that it is just an advancement of Bugeojjim. Aguijjim restaurants began to appear in Seoul in the 1970s, and in the 1990s streets full of Aguijjim restaurants formed. Moreover, popular music and literature referenced Aguijjim in the late 1990s. As Aguijjim has developed and the formation of Aguijjim street have combined, the consumption of monkfish has increased drastically, leading to its import. As cooking methods have transformed, the fish with the unpleasant look which was thrown out in the past, have dramatically gained public interest. 'Masan Aguijjim' became an independent brand that represents a local food that has also been nationalized in a short amount of time.

학교 조직에서의 교사 갈등에 대한 영향 요인 분석 (Analyses of Factors Affecting Conflict of Teachers in School)

  • 장봉석;김진철
    • 산업융합연구
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    • 제19권1호
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    • pp.7-15
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    • 2021
  • 이 연구는 학교 조직에서의 교사 갈등에 대한 영향 요인을 탐색하기 위해 실시되었다. 연구를 위해 학교조직 구성원, 교육 수요자, 교육정책에 대한 갈등의 영향 요인을 분석하였으며, 독립변인은 개인, 학교, 지역 수준으로 구분하여 설정하였다. S시교육청 소속 교사 561명의 응답 자료가 분석에 활용되었으며, SPSS 24.0 프로그램을 활용하여 위계적 중다회귀분석을 실시하였다. 연구결과, 교사 갈등 전체에 대해 개인 수준에서는 경력, 학교 수준에서는 담임 여부와 전입 여부, 지역 수준에서는 근무 지역이 통계적으로 유의한 변인으로 나타났다. 연구 결과를 토대로 교육청과 단위학교 수준으로 구분하여 교사 갈등에 대한 지원 방안을 제시하였다.

Survey of Automatic Query Expansion for Arabic Text Retrieval

  • Farhan, Yasir Hadi;Noah, Shahrul Azman Mohd;Mohd, Masnizah
    • Journal of Information Science Theory and Practice
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    • 제8권4호
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    • pp.67-86
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    • 2020
  • Information need has been one of the main motivations for a person using a search engine. Queries can represent very different information needs. Ironically, a query can be a poor representation of the information need because the user can find it difficult to express the information need. Query Expansion (QE) is being popularly used to address this limitation. While QE can be considered as a language-independent technique, recent findings have shown that in certain cases, language plays an important role. Arabic is a language with a particularly large vocabulary rich in words with synonymous shades of meaning and has high morphological complexity. This paper, therefore, provides a review on QE for Arabic information retrieval, the intention being to identify the recent state-of-the-art of this burgeoning area. In this review, we primarily discuss statistical QE approaches that include document analysis, search, browse log analyses, and web knowledge analyses, in addition to the semantic QE approaches, which use semantic knowledge structures to extract meaningful word relationships. Finally, our conclusion is that QE regarding the Arabic language is subjected to additional investigation and research due to the intricate nature of this language.

The Effect of Working-hour Characteristics and Health Status of Nurses on Work-life Balance: Using the 5th Korean Working Conditions Survey

  • Cho, Eunjeong;Ju, Jieun;Oh, Booyoung
    • Journal of Korean Biological Nursing Science
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    • 제24권4호
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    • pp.209-218
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    • 2022
  • Purpose: This study aimed to investigate the relationships between the characteristics of nurses' work schedules, health outcomes, and work-life balance. Methods: This was a secondary data analysis that included 422 nurses in Korean hospitals. Descriptive analysis, independent sample t-test, one-way ANOVA, Pearson correlation analysis, and multiple linear regression analysis were used to identify the associated factors. Results: Multiple linear regression analysis showed that work-life balance was lower when atypical work was performed (β=-.14, p=.010). Nurses who did not work overtime showed a higher level of work-life balance than those who worked overtime infrequently (β=-.11, p=.002) or frequently (β=-.28, p<.001). The work-life balance level increased when nurses had better subjective health status (β=.16, p<.001) or higher sleep quality (β=.29, p<.001). It was verified that the work-life balance level was higher for single-person households than for households with two (β=-.18, p=.003), three to four (β=-.16, p=.022), or five or more (β=-.21, p<.001) persons. Conclusion: This study suggests that government and hospital organizations should provide high-quality care and consideration to nurses who do atypical or overtime work as well as their subjective health status and sleep quality. Further research should focus on the development of a policy that improves the work-life balance of nurses, especially for those who work during atypical hours.

가족구조와 사회화가 강박구매에 미치는 영향에 관한 연구: 태국의 인생행로연구를 중심으로 (The Effects of Family Structure and Socialization Influences on Compulsive Buying: A Life Course Study in Thailand)

  • Nguyen, Hung Vu;Moschis, George P.;Shannon, Randall;Gotthelf, Kristian
    • 마케팅과학연구
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    • 제19권2호
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    • pp.27-39
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    • 2009
  • Compulsive consumption is regarded as a global phenomenon that can adversely affect consumer well-being. Although the topic has been studied in different cultural settings, we have seen relatively little theory development and explanations of compulsive behavior Nearly all previous empirical studies attempt to explain this behavior by correlating measures of compulsive behavior with independent variables taken within the same time frame. However, recent developments in social sciences suggest that such a phenomenon may best understood in the context of the person's earlier-in-life experiences. Using the life course paradigm as an overarching framework, the present research extends previous work on this topic. Following hypotheses were drawn from literature review: H1: The earlier in childhood and adolescence a person experiences family dislocation, the greater his or her likelihood of exhibiting compulsive behaviors in adulthood. H2: The earlier in life the young person experienced family dislocation, the greater the number of family disruption events the young person experienced prior entering adulthood years. H3: Family dislocation leads to (a) increased frequency of socio.oriented family communications and (b) decreased frequency of concept-oriented family communication. H4: Young adults who were raised in families characterized by a strong socio-oriented communication structure are more likely to exhibit compulsive consumption tendencies than those who were raised in families characterized by a weak socio-oriented family communication structure. H5: Young adults who were raised in families characterized by a strong concept-oriented communication structure are less likely to exhibit compulsive consumption tendencies than those who were raised in families characterized by a week concept-oriented family communication structure. H6: The relationship between family disruption events experienced during adolescence and perceived stressfulness of these events is moderated by (a) global family support, (b) emotional family support, and (c) material family support. Those reporting higher levels of family support as teenagers are less likely to report experiencing stress due to family disruption events. H7: Perceived stressfulness of family disruption events experienced during adolescent years are associated with compulsive consumption tendencies in early adulthood. H8: The greater the number of family disruption events young adults experienced during their adolescent years the more frequent was their communication about consumption with their peers. H9: The more frequent was the young persons' communication with their peers about consumption during their adolescent years, the more likely they are to report compulsive buying tendencies as young adults. We use a sample of 120 Thai undergraduate students attending classes taught in English as part of a four-year international program. Product-moment correlations, hierarchical regression analysis and partial correlation were used to analyze data. Results of testing hypotheses showed that hypothesis 2, 4, 7 and 9 were supported and hypothesis 1, 3, 5, 6 and 8 were not supported. Our study did not find a significant relationship between the age when a person experienced family dislocation and their compulsive behavior tendencies expressed as young adults. We did not find a significant relationship between family dislocation and family communication structures. But we found a significant positive relationship between socio-oriented communication structure and compulsive buying and a significant relationship between our peer communication and compulsive buying measures. Also we found perceived stressfulness due to the disruptive events to have a significant positive relationship between the perceived stressfulness and compulsive buying. Implications from these findings, limitations of this research and future research suggestions were discussed.

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인간과 감정적 상호작용을 위한 '감정 엔진' (Engine of computational Emotion model for emotional interaction with human)

  • 이연곤
    • 감성과학
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    • 제15권4호
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    • pp.503-516
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    • 2012
  • 지금까지 로봇 및 소프트웨어 에이전트들을 살펴보면, 감정 모델이 내부에 종속적으로 존재하기 때문에 감정모델만을 별도로 분리해 새로운 시스템에 재활용하기란 쉽지 않다. 따라서 어떤 로봇 및 에이전트와 연동될 수 있는 Engine of computational Emotion model (이하 EE로 표시한다)을 소개한다. 이 EE는 어떤 입력 정보에도 치중되지 않고, 어떤 로봇 및 에이전트의 내부와도 연동되도록 독립적으로 감정을 담당하기 위해, 입력 단계인 인식과 출력 단계인 표현을 배제하고, 순수하게 감정의 생성 및 처리를 담당하는 중간 단계인 감정 발생만을 분리하여, '입력단 및 출력단과 독립적인 소프트웨어 형태, 즉 엔진(Engine)'으로 존재한다. 이 EE는 어떤 입력단 및 출력단과 상호작용이 가능하며, 자체 감정뿐 아니라 상대방의 감정을 사용하며, 성격을 활용하여 종합적인 감정을 산출해낸다. 또한 이 EE는 로봇 및 에이전트의 내부에 라이브러리 형태로 존재하거나, 별도의 시스템으로 존재하여 통신할 수 있는 구조로 활용될 수 있다. 감정은 Joy(기쁨), Surprise(놀람), Disgust(혐오), Fear(공포), Sadness(슬픔), Anger(분노)의 기본 감정을 사용하며, 문자열과 계수를 쌍으로 갖는 정보를 EE는 입력 인터페이스를 통해 입력 신호로 받고, 출력 인터페이스를 통해 출력 신호로 내보낸다. EE는 내부에 감정마다 감정경험의 연결 목록을 가지고 있으며, 이의 계수의 쌍으로 구성된 정보를 감정의 생성 및 처리하기 위한 감정상태 목록으로 사용한다. 이 감정경험 목록은 '인간이 실생활에서 경험하는 다양한 감정에 대한 이해를 도모'하는 감정표현어휘로 구성되어 있다. EE는 인간의 감정을 탐색하여 적절한 반응을 나타내주는 상호작용 제품에 이용 가능할 것이다. 본 연구는 제품이 '인간을 공감하고 있음'을 인간이 느낄 수 있도록 유도하는 시스템을 만들고자 함이므로, HRI(인간-로봇 상호작용)나 HCI(인간-컴퓨터 상호작용)와 관련 제품이 효율적인 감정적 공감 서비스를 제공하는데 도움이 될 수 있을 것으로 기대한다.

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