• 대한음성학회지:말소리
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• 제62호
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• pp.69-84
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• 2007

Japanese is a language having intonations, which are indicated by the relative differences in pitch heights and the accentual phrases (APs) are placed according to the changes of the accents while a break occurs on a boundary of the APs. Although a break can be predicted by using J-ToBI, which is a rule-based or statistical approach, it is very difficult to predict a break exactly due to the flexibility. Therefore, in this paper, a method which can enhance the quality of synthesized speech by reducing the errors in predicting break indices (BI), are proposed. The method is to use a new definition for the phonetic symbols, which combine the phonetic values of Japanese words with the accents information. Since a stream of defined phonetic symbols includes the information on the changes in intonations, the BI can be easily predicted by dividing the intonation phrase (IP) into several APs. As a result of an experiment, the accuracy of break generations was 98 % and the proposed method contributed itself to enhance the naturalness of synthesized speeches.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.959-968
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• 2020

Tourist loyalty is created through good tourism service quality and the availability of tourism products. This study discussed the various attributes of tourism service quality, namely, tour agents, efficient personnel, accessible transportation, and information service quality. Whereas for tourism product availability attributes were varieties of product availability, wide selection of tour agents and tourist products, and wide variety of amenity services. As a general rule, the minimum is to have at least five times as many observations as the number of variables to be analyzed, and the more acceptable sample size would have a 10:1 ratio. A total of 424 questionnaires were returned, with 35 removed due to errors. Finally, 389 questionnaires respondents were used via accidental sampling method through the distribution of questionnaires to foreign tourists at Soekarno Hatta International Airport. In addition, AMOS 7.0 software is used to test models in confirmatory factor analysis (CFA) as well as hypothetical testing using structural equation modeling (SEM). The results showed that all hypotheses were accepted, except for the effect of tourism service quality on tourist loyalty in Indonesia. This research aims to contribute significantly to the existing knowledge of tourism, specifically from a foreign tourist perspective in Indonesia.

• 응용통계연구
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• 제29권7호
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• pp.1361-1371
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• 2016

분위수 회귀모형은 설명변수가 반응변수의 조건부 분위수 함수에 어떻게 관계되는지 탐색함으로서 많은 유용한 정보를 제공한다. 그러나 설명변수와 반응변수가 비선형 관계를 갖는다면 선형형태를 가정하는 전통적인 분위수 회귀모형은 적합하지 않다. 또한 고차원 자료 또는 설명변수간 상관관계가 높은 자료에 대해서 변수선택의 방법이 필요하다. 이러한 이유로 본 연구에서는 벌점화 분위수 회귀나무모형을 제안하였다. 한편 제안한 방법의 분할규칙은 과도한 계산시간과 분할변수 선택편향 문제를 극복한 잔차 분석을 기반으로 하였다. 본 연구에서는 모의실험과 실증 예제를 통해 제안한 방법의 우수한 성능과 유용성을 확인하였다.

• 한국직업건강간호학회지
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• 제12권1호
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• pp.19-30
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• 2003

Increasing occupational cerebrovascular & cardiovascular disease, it becomes the most serious problem in the occupational health management. Hypertension is the most important risk factor of cerebrovascular & cardiovascular disease. Although treatment for hypertension has the priority, hypertension has not been managed systematically at the worksite. The objectives of this study were to investigate the actual situation of its treatment, figure out what factors can affect compliance for hypertension treatment and analyze the relations between compliance and employment status. Subjects were 28 workers who have been diagnosed as hypertension at periodic health examination, 20 workers who have been managed for hypertension at dispensary and 22 workers who were diagnosed during the study periods. The results of the study were as follows; 1. More women have been hired as part time workers and had lower education background and income than the full time workers. 2. Among the factors that have been known to affect the treatment compliance, part time workers had less supports from the company than full time workers. 3. We got the comparison of difference between compliance and variables that the factor grade of cure promotion and average ages are high in high compliance. In conclusion there were not the difference of compliance by employment status. But it was hard to rule out the selection vias because the sample size was so small. So it seems difficult to generalized the conclusion that employment status doesn't affect the treatment compliance.

• 정보통신설비학회논문지
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• 제2권4호
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• pp.71-77
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• 2003

본 연구에서는 한층 더 개선된 보안시스템을 구현하기 위해 현재 사용하고 있는 보안시스템에 대한 테스트를 실시하여 문제점을 분석하고, 그에 따른 대응방안을 제안 하였다. 방화벽에서 처리학 수 있는 최대의 전송량을 측정하고자 테스트 모델을 구성하여 테스트구간에서 전송된 Packet 수와 전송시간을 측정하였고, 보안업체의 협조를 얻어 스마트비트 이용한 테스트 결과를 얻었다. 데이터 분석결과, 각 기관별 사례에서 Rule 수에 따라 방화벽의 처리성능이 가장 큰 차이점으로 분석되었다.

• 한국컴퓨터정보학회논문지
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• 제6권2호
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• pp.20-26
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• 2001

능동 데이터베이스의 성능 향상을 위해 능동규칙의 조건부에 관한 연구가 매우 중요한 요소가 되며, 조건부에서 발생되는 연산 처리시간을 최소화 시켜야만 시스템의 성능을 높일 수 있다. 본 논문에서는 차이트리 구조 그리고 분류트리를 생성하는 전처리 기능을 갖는 조건부 처리 기법을 제안한다. 전처리는 능동규칙을 미리 파악할 수 있는 능동 데이터베이스의 특징 때문에 도입될 수 있다. 본 논문에서는 차이릴레이션 대신에 조인연산과 선택연산을 효율적으로 처리할 수 있는 차이트리와 분류트리를 제안하여 조건부의 처리 성능을 높인다.

• Asia pacific journal of information systems
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• 제7권1호
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• pp.85-97
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• 1997

This paper is concerned with knowledge representation schemes best suited for human resource management (HRM) problem domains including human resource planing, selection, placement, compensations, performance evaluation, training and labor-management relations. In order to suggest the scheme we consider two research gods. First, we evaluate and prioritize. The knowledge representation techniques of frames rules, semantic nets and predicate logic that hove been recommended to managerial domains. The combined Analytic Hierarchy Process technique is employed to combine individual judgments effectively between two different expert groups. As a result if we are to select a single knowledge representation technique, a frame representation is best for most HRM domains and to combine frames with others is another choice. Second as a strategy for knowledge representation schemes we show some examples for each damn in terms of labeled semantic nets and two types of rules derived from the semantic nets. We propose nine knowledge components as ontologies. The labeled semantic nets con provide some benefits compared with conventional one. More clearly definea node rode information maces it easy to find the ac information. In the rule sets, the variables are the node of the semantic nets. The consistency of rules is validated by the relationship of the knowledge components.

• 한국정보처리학회논문지
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• 제3권7호
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• pp.1792-1802
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• 1996

영한 기계번역에서 전치사구의 해석 부착의 문제(Attachment Problem)와 의미 해석의 문제, 그리고 해석에 필요한 정보 획득의 문제가 있다. 이 세 가지 문제를 해결하기 위하여 본 논문은 전치사구 해석 시스템을 제시한다. 이 시스템은 규칙 제어기와 신경망의 하이브리드 구문해석 시스템, 격의미 해석 시스템, 그리고 신경망 의 입력 정보를 자동으로 생성하는 의미속성 생성기로 구성한다. 의미속성 생성기는 시스템의 입력이 되는 의미속성을 자동으로 생성하는 방법으로 인위적인 방법의 단점 을보완하여 객관성 있는 전치사구 해석을 하게 한다. 격의미 해석 시스템은 영한 기계 번역에 맞는 격의미를 찾아내어 자연스런 한국어 생성을 하게 하고 구문해석 시스템은 규칙 방법의 장점과 신경망 방법의 장점을 취한 하이브리드 방식의 시스템으로 전치사 구 부착의 문제를 해결한다.

• 한국재료학회:학술대회논문집
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• 한국재료학회 2003년도 춘계학술발표강연 및 논문개요집
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• pp.174-174
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• 2003

Highly (111)-oriented PZT [Pb(Zrl-xTix)O3] thin films in the Zr-rich rhombohedral phase-field were successfully fabricated on Pt(111)/Ti/SiO2/Si substrates by combining PLD method with sol-gel process. These highly (111)-oriented films can be used as model systems for polarized Raman scattering study of PZT in the rhombohedral-Phase field because the (111)-direction is the principal off-center axis of the rhombohedral ferroelectricity. For this purpose, we have fabricated PZT films employing two distinctive compositions : one with Zr/Ti = 90/10 (abbreviated as PZT90/10) and the other with Zr/Ti= 60/40 (PZT60/40). The PZT90/10 film belongs to the octahedrally distorted FR(LT) phase with a cell-doubled structure, whereas the PZT60/40 is in the high-temperature FR(HT) phase-field at room temperature. To clearly separate E(TO) phonon modes from Al(TO) modes of the (111)-oriented rhombohedral film, we have suitably devised Z(X,Y)Z and Z(X,X)Z backscattering geometries for E(TO) and Al (TO), respectively. The polarized scattering experiment demonstrated that both types of (111)-oriented rhombohedral films closely followed the Raman selection rule.

• 산업공학
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• 제6권1호
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• pp.31-45
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• 1993

Setup planning for machining processes is a part of fixture planning which is also a part of process planning. A setup of a part is defined as a group of features which are machined while the part is fixtured in one single fixture. Setup planning includes a number of tasks such as the selection of setup, sequence of setups and datum frame for each setup. Setup planning is an important function in fixture planning which must be able to support and to clamp a workpiece to prevent deflections caused by machining and clamping loads. This paper presents setup planning system using expert system approach(SPES) for prismatic parts which can be machined on vertical milling machine. SPES consists of preprocessing module and main processing module. Preprocessing module executes the conversion of feature data to frame type data and the determination of setups, and main processing module executes the determination of datum frame of each setup and sequance of setups. Preprocessing module is coded by C language and main processing module is a rule-based expert system using EXSYS pro. The performance of SPES is evaluated through case studies and the results show successful work except for operation sequence of machining holes. This is due to the limited rules for machining holes.