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장경현(Kyung Hyun Jang),박기태(Ki Tae Park),문영식(Young Shik Moon) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7
In this paper, a content-based image retrieval method considering both local information and spatial correlation of image is proposed. In order to efficiently represent the spatial correlation, texture structure is classified into three kinds of pattern. In experiment result, our method improves 3.94% ~ 11.23% precision rate over the existing methods.
장경현 ( Jang Gyeong-hyeon ) 연세대학교 언어정보연구원(구 연세대학교 언어정보개발원) 2018 언어사실과 관점 Vol.45 No.-
The goal of this paper is to study meanings and functions of Korean qualifier ‘da’. ‘da’ is classifiedd into two categories; quantifying expressions and non-quantifiying expressions. There are some syntactic restrictions and semantic characteristics which distinguish adverb ‘da’ from noun ‘da’. Adverb ‘da’ usually modifies preceding elements in a sentence and is regarded to make them focus of the sentence. ‘da’ should be studied in semantic/pragmatic level in that ‘da’ fucntions as modal adverb. Especially, non-qualifying expression ‘da’ shows very peculiar semantic characteristics. Using non-qualifying ‘da’, speaker expresses unexpectedness and value judgment in their recogntion category. Moreover, ‘da’ indicates and modifies pragmatic situations. Sometimes it collocates with some modal propositions or is replaced by them. ‘da’ is used as modaliy expression in spoken language and discourse but it is not enough to define it as discourse marker.
장경현 ( Kyung Hyun Jang ) 서울대학교 인문학연구원 2011 人文論叢 Vol.66 No.-
This paper aims to find the principles according to which collocations with neologisms are formed. Neologisms that are not listed in the lexicon are used in forms of collocation. They are newly created on the internet, and as they are not widely spread, do not have transparency. On-line games are their biggest sources. Some kinds of neologism-collocations are composed entirely of newly- created words. However, collocations made of neologisms can also be derived from existing collocations through analogy and metonymy. Analogy reveals the similarity between existing collocations and newly formed collocations and helps collocational noads to select appropriate collocates. And with metonymy, partial meaning of collocates can be expanded to the whole lexical unit.
장경현 ( Gyeong Hyeon Jang ) 한국텍스트언어학회 2009 텍스트언어학 Vol.26 No.-
This paper attemps to invstigate characteristics of puzzle mystery texts and to analyze the text structures of the genre. This paper is presented in three parts. The first part deals with characteristics of puzzle mystery genre. They are intentionality, intertextuality, similarity of situation, schema form and meta-text. The second part shows the character roles of puzzle mystery. Among them, the Narrator plays very important role because he/she present the surface structure and conceals the inward structure. In the third part, the types of the sub-texts of puzzle mystery are analyzed. The surface structure is arranged by linear structure, but the inward structure non-linearly. Some sub-texts of the surface structure can be transformed into different texts and can be rearranged to the inward structure. These works are activated by some hidden clues distributed in the whole text.
장경현(Jang Kyeon-hyeon) 국어문학회 2016 국어문학 Vol.61 No.-
‘좀’은 ‘조금’의 준말과 다른 의미 기능을 갖고 있으며 주로 구어에서 나타난다. 본 연구는 ‘좀’을 형식적으로 크게 세 가지로 분류한다. 이는 (1) 부사적 실현 (2) 후치사적 실현 (3) 담화요소적 실현이다. 부사적 실현과 후치사적 실현은 ‘좀’의 어휘의미가 ‘조금’의 본래 의미에서 확장되어 나타나 선행요소 또는 후행요소를 한정하는 기능을 하는 것이고 담화요소적 실현은 어휘의미와 관계없이 담화 전체의 정보와 연관된 것이다. (1)과 (2)는 축소와 범위 한정의 의미가 변용되어 나타나나 (3)은 공손표지와 담화표지의 두 가지로 나타난다. 공손표지는 독립된 의미기능이 아니라 상황에 따라 부가되는 기능이며 담화표지는 문장 어디에든 자유로이 삽입된다. "jom" has semantic functions somewhat different from those of "jogeum" and appears mainly in spoken language. In this study, I classified "jom" into three groups by forms: (1) adverbial occurrence (2) postpositional occurrence (3) discourse componential occurrence. (1) & (2) are the forms that extended from the original meaning of "jogeum" and function as modifiers of preceding components or following components. (3) is related to informations of entire discourse. In (1) & (2), the meaning of reduction and delimiting show variations, but (3) appears as politeness markers and discourse markers. Politeness markers are the functions which are added situationally and discourse markers are inserted in sentences freely.
DoG 필터와 시각 주의 모델을 이용한 적외선 소형 표적 검출 방법
장경현(Kyung-Hyun Jang),박기태(Ki-Tae Park),문영식(Young-Shik Moon) 한국정보기술학회 2013 한국정보기술학회논문지 Vol.11 No.6
In this paper, in order to efficiently detect small targets in an infrared image under various background environments, a small target detection method using DoG filter and visual attention model is proposed. To this end, in the first step, a local contrast enhancement is performed to improve intensity of dim small targets. In the second step, candidate regions of small target are extracted from an input infrared image by applying a DoG filter(band pass filter). In the third step, the spectral residual technique which is one of the visual attention models is used to calculate a saliency map. The extracted candidate regions are weighed by the saliency map to suppress background clutters. Finally, an adaptive thresholding technique is applied to detect small targets. The experimental results show that proposed method achieves better performance than the existing methods in various background environments.
장경현 ( Gyeong Hyeon Jang ) 한국텍스트언어학회 2013 텍스트언어학 Vol.35 No.-
This paper attempts to illuminate the macro-structures of novel texts by analyzing the chapterdivision which is very distinctive property of novel texts. In novel texts, it makes linear structures rather than hierarchical structures and is intended by writer with some text/discourse strategies. Therefore the chapter-division should be treated as the important parts of the macrostructure. Also the chapter-division has relation with the informativity of the textualities. The informativity is usually low in the head part and is high in the ending part of the chapter. And it corresponds to the information structure of the sentence. However the chapter- division can be used for some special narratives in mystery novels. Additionally, the chapter markers have some functions in novel texts.
장경현(Jang Gyeong-hyeon) 한국언어문학회 2015 한국언어문학 Vol.95 No.-
The goal of this study is to observe and analyze ideologies in TV commercials diachronically. Commercials provide customers with ideal world that they can sympathize with. Ideologies inherent in TV commercials are; 1) gender role and traditional view of family 2) collectivism / individualism 3) optimistic perspective about society. These ideologies have changed appearances gradually reflecting the paradigme of each period. In 70’s, TV commercials showed fixed gender role, collectivism and optimistic perspective. In 80’s, TV commercials showed more fixed gender role. But in 90’s, we can see diverse gender roles and individualism. And in 2000’s, there are more diverse gender roles and enhanced individualism. The most outstanding feature is that positive expressions are replaced with negative expressions. However, ideologies of past periods are still remained in this period.