• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2005년도 가을 학술발표논문집 Vol.32 No.2 (1)
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• pp.961-963
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• 2005

We answer a question raised by P. Brass on the number of maximally repeated sub-patterns in a set of n points in $\mathbb{R}^{d}$. We show that is number, which was conjectured to be polynomial, is in fact $\Theta(2^{\frac{n}{2}})$ in the worst case, regardless of the dimension d.

• 대한수학회논문집
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• 제10권3호
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• pp.561-573
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• 1995

A matrix whose entries consist of the symbols +, - and 0 is called a sign pattern matrix. In [1], a graph theoretic characterization of sign idempotent pattern matrices was given. A question was given for the sign patterns which allow idempotence. We characterized the sign patterns which allow idempotence in the sign idempotent pattern matrices.

• 사상체질의학회지
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• 제33권3호
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• pp.95-126
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• 2021

Objectives The purpose of this study was to develop diagnostic tools for Sasang Constitutional patterns based on the middle classification of the Sasang Constitutional patterns. Methods Diagnosis and assessment indicators of Soeumin, Soyangin, Taeeumin, and Taeyangin patterns were extracted based on the 『Clinical Practice Guideline for Sasang Constitutional Medicine Symptomatology』 and 『Donguisusebowon』. An online survey was conducted on the 'importance of diagnosis and assessment indicators' by the Sasang Constitutional Medicine expert group. Results Based on the expert consultation results, the importance weight for each diagnosis and assessment indicators symptom was calculated, and the importance was ranked to develop diagnostic tools for Soeumin, Soyangin, Taeeumin, and Taeyangin patterns. Diagnostic tool consisted of 58 questions for Soeumin patterns, 68 questions for Soyangin patterns, 81 questions for Taeeumin patterns, and 42 questions for Taeyangin patterns. The final total score was calculated by reflecting each response score and the weight of each question. Conclusions The developed 'Diagnostic Tools for Sasang Constitutional patterns' can be used to make an effective and objective diagnosis in the clinical site. In the future, if the reliability and validity of these diagnostic tools are tested through clinical study, it will be possible to improve clinical applicability and contribute to standardization of diagnosis.

• 한국정보컨버전스학회:학술대회논문집
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• 한국정보컨버전스학회 2008년도 International conference on information convergence
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• pp.53-56
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• 2008

This paper reports on the ACQA(Animated agent for Conversational Question Answering) project conducted at LIMSI. The aim is to design an expressive animated conversational agent(ACA) for conducting research along two main lines: 1/ perceptual experiments(eg perception of expressivity and 3D movements in both audio and visual channels): 2/ design of human-computer interfaces requiring head models at different resolutions and the integration of the talking head in virtual scenes. The target application of this expressive ACA is a real-time question and answer speech based system developed at LIMSI(RITEL). The architecture of the system is based on distributed modules exchanging messages through a network protocol. The main components of the system are: RITEL a question and answer system searching raw text, which is able to produce a text(the answer) and attitudinal information; this attitudinal information is then processed for delivering expressive tags; the text is converted into phoneme, viseme, and prosodic descriptions. Audio speech is generated by the LIMSI selection-concatenation text-to-speech engine. Visual speech is using MPEG4 keypoint-based animation, and is rendered in real-time by Virtual Choreographer (VirChor), a GPU-based 3D engine. Finally, visual and audio speech is played in a 3D audio and visual scene. The project also puts a lot of effort for realistic visual and audio 3D rendering. A new model of phoneme-dependant human radiation patterns is included in the speech synthesis system, so that the ACA can move in the virtual scene with realistic 3D visual and audio rendering.

• 한국콘텐츠학회논문지
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• 제5권3호
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• pp.209-215
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• 2005

본 논문에서는 정의형 질의응답 시스템을 위한 정답 패턴에 대하여 기술한다. 정의형 질의응답 시스템은 정의형 질의에 대한 정답으로 단답형 정답이 아닌 서술형 정답을 제공하기 때문에, 정답 추출 방법이 일반적인 단답형 정답 추출 방법과 다르다. 정의형 정답 패턴을 이용한 정의형 정답 추출은 의미 분석없이 정확한 정의형 정답을 추출할 수 있다. 정의형 정답 패턴은 정확한 정답 추출을 위해 정답 패턴과 패턴별 제약 규칙, 우선순위로 구성된다. 정의형 정답 학습 코퍼스로부터 정답 패턴을 추출하고, 각각의 정답 패턴에 대한F-measure에 따라 최적화하여 패턴별 제약 규칙을 구성한다. 마지막으로 정확률과 정답 패턴 구문 구조를 이용하여 우선순위를 결정한다. 제안한 정의형 정답 패턴을 이용한 정의형 정답 추출은 실험 코퍼스에 대해 정확률 0.8207, 재현율 0.9268, F-measure 0.8705를 보였다. 이것은 제안한 방법이 정의형 질의응답 시스템에 효율적으로 사용될 수 있음을 의미한다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2004년도 추계 종합학술대회 논문집
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• pp.470-475
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• 2004

본 논문에서는 정의형 정답 문장을 요구하는 질의에 대하여 올바른 정답 문장을 추출하는 방법에 대해 기술한다. 말뭉치로부터 정의형 정답문장 패턴을 정의하고, 패턴별 제약 규칙 및 패턴 순위화 같은 방법들을 이용하여 정확한 정의형 정답 문장이 추출되도록 하였다. 정답 패턴은 정의형 정답 문장의 구문 구조 및 각 패턴 또는 정답 패턴 별 실마리 어휘 등으로 구성된다. 현재 학습되지 않은 일반 문서에 대해 약 83%의 정의형 정답 문장 추출 정확도를 보이고 있다.

• 한국식생활문화학회지
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• 제19권3호
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• pp.336-347
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• 2004

This study was conducted to investigate eating-out behavior patterns of youths, especially junior high and senior high school students. 1600 questionnaire surveys were distributed and 1487 were used for analysis. In order to consider regional differences as well as overall characteristics of youths' eating-out behaviors, the subjects were evenly sampled from north Seoul, south Seoul, big cities, middle/small cities and small towns. As for the frequency of eating-out, 62.7% of respondents answered once to twice per week. For the can of more than 5 times of eating-out per week, the respondents from south Seoul showed the highest frequency. For the case of no eating-out, the highest frequency was shown from the small towns. As for the most frequently visited place for eating-out, 33.6% of respondents answered Korean style restaurants, and 17.6% Boon-sik(Sanck-bar). Regarding the preference of Korean style restaurants, the highest rate was shown from the residents of big cities. For the question of when they eat out, 89.6% answered dinner and 6.3% lunch. For the question about reason of choosing particular restaurants, 61.5% of respondents referred to tastes and 16.6% price. For the question of the most important reason of eating out, 52.6% point out 'meal solution' and 25.6% 'for meeting.' As for the people accompanied when eating out, 67.2% of the respondents answered family. For the cost of eating out per person, 45.7% of the respondents spent 2000-4000 won for lunch; 31.1% spent 5000-10,000 won for dinner; 33.7% of the respondents spent more than 20,000 won for the special events. Regarding the regional differences of eating-out cost, respondents from south Seoul tended to spend the biggest amount of money for lunch, dinner and special day.

• 음성과학
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• 제7권4호
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• pp.203-217
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• 2000

In spoken language, the characteristics of prosodic realization are related to the meaning of utterance. The pitch pattern of an interrogative sentence which differs from that of declarative sentences can be considered in this respect.. If we consider the question-answer pair, we can find that the most important variation comes from the intended meaning of asking. In this paper, we experiment with four kinds of interrogative sentences and show that the difference in pitch patterns of interrogative sentences can be explained in relation to the focus phenomena that is, the differences of the boundary tones in interrogative sentences are due to the differences in the prosodic domain of focus. For a relevant explanation with the focus phenomena, we divided focus into the categories: emphatic focus, which plays a role in delivering the speaker's intended meaning for the sentence interpretation, and informational focus, delivers the central intended meaning of the utterance. The results can be summarized in three points. First, High boundary tone delivers the meaning of asking. Second, the realization of different boundary tones that are found in wh-question and alternative question are just phonetic variations caused by focusing. Third, the high rise boundary tone in echo questions is related to the meaning of surprise or incredulity, and this relation is a consensus of existing opinion, that is, the speaker's attitude of surprise can raise the pitch range. From these results we can distinguish between boundary type and phonetic variation, and we can also give appropriate meaning to the different boundary tones in interrogative sentences that have been regarded as merely a part of sentence type.

• Journal of Information Technology Applications and Management
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• 제26권1호
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• pp.21-38
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• 2019

This study starts from the question, "Are people of the age 60 and over equally 'old?' "As the aging population has rapidly become a global issue, it is a timely question to think about whether it is appropriate to classify people aged 60 and over as senior citizens monolithically based on their chronological age. Thanks to the advancement of medical technology and ever-increasing life expectancy, there may be more differences than we thought in terms of cognitive and behavioral patterns among the elderly population. In order to further investigate this question, this study focuses on technology acceptance behavior of 132 participants over the age of 60 towards a wearable healthcare device. The results show that there were interesting behavioral differences among participants depending on their cognitive capabilities. More specifically, participants with high cognitive capability (Superagers) consider the usefulness and the social aspects (social norm and image) of using wearable healthcare technology. Whereas for those with relatively low cognitive capability (non-Superagers), usefulness of using the technology was not a significant factor, and they mainly considered social norm and image. Our findings imply that the current monolithic application of chronological age to classify the elderly population should be carefully reconsidered because people aged over 60 years old may not always share homogeneous cognitive and behavioral patterns.

• 한국과학교육학회지
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• 제27권1호
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• pp.84-92
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• 2007

이 연구는 생물학자들이 생물학 현상에서 과학적 의문을 생성할 때 나타나는 두뇌의 활성을 분석하고자했다. 이를 위해서 10개의 의문 생성 과제를 개발하여 8명의 생물학자들에 투입하였고, 의문 생성 과정에서 fMRl를 통해 생물학자들의 두뇌 활성을 측정하여 분석하였다. 그 결과, 방추이랑, 전안구운동 영역, 소뇌, 좌측 전두엽, 좌우측 해마와 대상이랑, 복외측전 두피질부 등이 특징적으로 활성화되었다. 이것은 과학적 의문을 생성하는 과정에서 생물학자들의 뇌는 주어진 생물학 현상을 상세히 분석하였고, 언어적 전략을 사용하였으며, 현재의 현상과 비교하기 위해서 과거의 경험상황과 선지식 등의 장기기억을 인출하고 표상했다고 할 수 있다. 특히 복외측전 두피질부의 활성은 의문 생성 과정에서 뇌가 인지적 갈등 및 부조화 단계를 거쳤음을 보여주었다고 할 수 있다.