• Title/Summary/Keyword: Morphological part

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Syllable-based POS Tagging without Korean Morphological Analysis (형태소 분석기 사용을 배제한 음절 단위의 한국어 품사 태깅)

  • Shim, Kwang-Seob
    • Korean Journal of Cognitive Science
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    • v.22 no.3
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    • pp.327-345
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    • 2011
  • In this paper, a new approach to Korean POS (Part-of-Speech) tagging is proposed. In previous works, a Korean POS tagger was regarded as a post-processor of a morphological analyzer, and as such a tagger was used to determine the most likely morpheme/POS sequence from morphological analysis. In the proposed approach, however, the POS tagger is supposed to generate the most likely morpheme and POS pair sequence directly from the given sentences. 398,632 eojeol POS-tagged corpus and 33,467 eojeol test data are used for training and evaluation, respectively. The proposed approach shows 96.31% of POS tagging accuracy.

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Morphological Description of Reticulitermes speratus kyushuenesis Morimoto (Isoptera : Rhinotermitidae) in Southern Part of Korea (남부지방에 분포하는 흰개미인 Reticulitermes speratus kyushuenesis Morimoto (Isoptera : Rhinotermitidae)의 형태적 기재)

  • 박현철;배태웅
    • The Korean Journal of Soil Zoology
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    • v.2 no.1
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    • pp.59-64
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    • 1997
  • A study was carried out to investigate the distribution of termites at the southern part of Korea between 1995 and 1996. During the survey, termite samples were collected from the randomly selected areas. Most of thern were collected from the decayed woods in dead trees (usually in pine trees), but some were also collected from woodern walls, floors in houses, or in matured bed logs at the mushroom cultivating areas. Damage by this termite species were also observed by Kim and Hwang (1996) who investigated the insect pests of mushroom in the southern part of Korea. To control the termites, it is urgent to identify them and to conduct ecological study of termites. Thus, we firstly identified termites which were collected from the sampling areas including houses and mushrooms cultivating fields. All termite samples were identified as Reticulitermes speratus. However, there were several morphological differences among them according to the collected areas, and the samples were reexamined, identified and divided into subspecies as R. speratus kyushuensis.

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Comparison of Morphological Characteristics between Smallscale Blackfish, Girella leonina and Largescale Blackfish, G. punctata (벵에돔, Girella punctata과 긴꼬리벵에돔, G. leonina의 외부계측형질 비교)

  • LIM, Sang-Gu;JEONG, Min-Hwoan;LEE, Tae-Ho;GIL, Hyun-Woo;PARK, In-Seok
    • Journal of Fisheries and Marine Sciences Education
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    • v.28 no.6
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    • pp.1848-1857
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    • 2016
  • In order to discriminate the morphologically analogous smallscale blackfish, Girella leonina and largescale blackfish, G. punctata, various methods were used by using biometric and geometric approaches. Morphometric analysis showed considerable 19 differences of total 44 morphometric dimensions: classical dimension 1 part; truss dimension 12 parts; and head part dimension 6 parts (P < 0.05). Some differences of morphological features primarily involved in caudal part of truss dimension. Our results of this study confirmed that two species adequately can distinguish with external body shape, and we hope that the results of our study could be used to identify in Girellidae family as taxonomical parameters.

A Study of Osteoporosis Prediction using Morphological Measuring of Proximal Femoral Part and Trabecular Characteristics Based on Femoral Radiographic Image (대퇴부 방사선영상에서 대퇴골 근위부의 형태학적 측정과 골소주의 특성을 이용한 골다공증 예측에 관한 연구)

  • Kim, Sung-Min;Roh, Seung-Gyu;Ro, Yong-Man
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.59 no.4
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    • pp.823-830
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    • 2010
  • This study was designed to examine the morphological measurement and characteristics of trabecullae based on femoral radiographic image for prediction of osteoporosis. Study subjects were 34 females (average age of 62.1 years) and 6 males (average age of 60.1 years), they were categorized into normal group and osteoporosis group in accordance with the T-score value. Measurement of the bone density of femoral bone was measured with DEXA(Dual Energy X-ray absorptiometry). ROI(Region of interests) was selected on femoral neck and trochanter. Characteristics of trabecullae was analyzed by using the skeletonization analysis of trabecular image. Morphological measurement was analyzed through femoral radiographic image in order to examine the correlation with osteoporosis. The result demonstrated statistically significant correlation between neck cortical thickness, shaft width, shaft cortical thickness, periphery, mean gray level and trabeculae area with BMD average (T-score) of femoral part. The results show that morphological measurement and characteristics of trabecullae based on femoral radiographic images for osteoporosis prediction could be effective.

Morphological study on suprachiasmatic nucleus of the Korean native goat (한국재래산양 시각교차위핵에 관한 형태학적 연구)

  • Song, Seung-hoon;Lee, Heungshik S.;Lee, In-se;Hwang, In-koo;Lee, Choong-hyun
    • Korean Journal of Veterinary Research
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    • v.40 no.4
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    • pp.665-670
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    • 2000
  • The present study was undertaken to investigate the morphological characteristics of the suprachiasmatic nucleus (SCN) of the Korean native goat by cresyl violet stain. The SCN was located ventrolateral to the third ventricle and dorsal to the optic chiasm. This nucleus was showed carrot form in longitudinal section. Its size was 1.8 mm in length, 0.9 mm in maximum height and 1.6 mm in maximum width. In coronal sections, the SCN shaped very thin plate in rostral part, but it was changed to sweet-potato form in middle part, and ornamental jade form in caudal part. The size of SCN was larger in caudal part than in rostral part. The size of the neuron of SCN was about $10{\mu}m$ in diameter with round or oval shape. The boundary of SCN was not firmly defined in caudal part because the neurons were dispersed into the hypothalamic region. It is concluded that the SCN of the Korean native goat has a morphological characteristics.

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Morphological Characteristics and Composition of Cell Wall Polysaccharides of Brassica campestris var. pekinensis (Baechu) (배추조직의 형태학적 특성과 세포벽 다당류의 조성)

  • Kim, Sun-Dong;Park, Hong-Deok;Kim, Mi-Gyeong
    • Food Science and Preservation
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    • v.4 no.3
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    • pp.301-309
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    • 1997
  • This study was conducted to examine morphological characteristics and the content of cell wall polysaccharides of Brassica campestris var. pekinensis(baechu). First of all, the variety of scientific name and naming of parts of baechu in the literatures of kimchi showed, which will unify marks. So, we propose not so much mid-rib and leaf blade of baechu leaf as white part and green part, respectively. On the other hand, the forms of vessel elements of white part in baechu consist in ring, sclariform and reticulate thickening. The proximate compositions and contents of cell wall polysaccharides of baechu has significant differences between its cultivars. The cell wall pectin from baechu exhibited four peals with molecular weights of 2,000,000, about 100,000 and less than 10,000 by gel filteration chromatography and hemicellulose did two peaks with molecular weights of 2,000,000 and 10,000.

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New report of Diekeana insignis(Gorham, 1892) (Coleoptera: Coccinellidae: Epilachnini) in South Korea

  • Sang Woo Jung;I Chan Shin;Yoon-Ho Kim
    • Journal of Species Research
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    • v.12 no.3
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    • pp.240-243
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    • 2023
  • The genus and species, Diekeana insignis(Gorham), is reported for the first time in Korea. Male adults were collected from Geoje Island and Changwon-si, located in the southern part of South Korea. The species of D. insignis(Gorham) is characterized by the following morphological characteristics: body length about 9.4mm; pronotum with transverse black marking in the middle part; each elytron with seven large black markings; penis long, slightly bent at apical part, truncate at apex; parameres narrow and as long as penis guide; penis guide narrow and pointed at apex. We herein provide habitus photographs, illustrations of morphological characters, male genitalia, and a detailed diagnosis. A partial sequence of the mitochondrial COI gene was obtained and provided mtDNA information for this species.

A Measurement Algorithm using Gray-level Thresholding in Automatic Refracto-Keratometer (그레이-레벨 한계 기법을 이용한 자동 시각 굴절력 곡률계의 측정 알고리즘)

  • Sung, Won;Park, Jong-Won
    • The KIPS Transactions:PartB
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    • v.9B no.6
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    • pp.727-734
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    • 2002
  • Currently. people become interested in the development of measuring instrument related to eyesight. In this study, we developed software of electronic part in automatic refracto-keratometer. If an automatic system, which uses images from an optical instrument, can inform the in-spector of an accurate eyesight measured value after the internal process, the frequency of mistakenly observed value will be reduced considerably. This software is using morphological filtering and gray-level signal enhancing techniques. The morphological filtering is the first process, from images of the optical instrument, to transform an original image which is hard to process into manageable one. The second process is a signal enhancing technique to the first processed image using gray -level thresholding technique and is used to reduce an error caused by the variety in distribution of the gray value of image. Therefore, this software system in electronic part will make more effective eyesight measurement by reducing the error effectively when applied to the optical image which is difficult to get accurate measurement value.

Morphological Theory and Design in Modern and Contemporary Architecture -Focused on the Romantic Educational Thoughts as a Dualistic Monism- (근현대건축의 모폴로지 이론과 건축설계)

  • Kim, Sung-Hong
    • Journal of architectural history
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    • v.13 no.4 s.40
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    • pp.89-105
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    • 2004
  • This paper investigates morphological theory as an intellectual framework for research and design. The first part of the paper will review morphological studies in the fields of urban geography, urban planning and architecture, particularly in England from the 1940s to the 1980s. While urban geographers and planners were concerned primarily with town plans, building forms and land use, architectural theoreticians were more interested in the topological relationship between urban and architectural space. The underlying premises and principles of these two approaches will be reviewed. The second part of the paper will focus on typology in Europe and North America. The reinterpretation of typology by Italian architects helped to bridge the gap between individual elements of architecture and the overall form of the city. However, typological theory became less accessible in post-war England and the United States. After 1980, the debate on typology became muted by the onset of vague notions such as functionalism, bio-technical determinism, and contextualism. This paper will propose a redefinition of morphology as a heuristic device, in contrast with the dichotomic view of urban morphology and architectural typology. Morphology will be shown to combine the geometrical and topological; the intentional and accidental; the real and abstract; and a priori and a posteriori. The last part of the paper discusses the lack of comparative theories and methods surrounding the physical form of architecture and the city by Korea commentators. Empirically rooted facility planning, non-comparative historical studies, and iconographic criticism emerged as a central preoccupation of architectural culture between the 1960s and 1980s, a time when international debate on architecture and urbanism was most intense. This paper will give consideration to the built environment as a dynamic physical entity and space as an epiphenomenon of daily urban life, such that collaboration between urban designers, architects, and landscape architects is seen as both beneficial and necessary.

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Morpheme Recovery Based on Naïve Bayes Model (NB 모델을 이용한 형태소 복원)

  • Kim, Jae-Hoon;Jeon, Kil-Ho
    • The KIPS Transactions:PartB
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    • v.19B no.3
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    • pp.195-200
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    • 2012
  • In Korean, spelling change in various forms must be recovered into base forms in morphological analysis as well as part-of-speech (POS) tagging is difficult without morphological analysis because Korean is agglutinative. This is one of notorious problems in Korean morphological analysis and has been solved by morpheme recovery rules, which generate morphological ambiguity resolved by POS tagging. In this paper, we propose a morpheme recovery scheme based on machine learning methods like Na$\ddot{i}$ve Bayes models. Input features of the models are the surrounding context of the syllable which the spelling change is occurred and categories of the models are the recovered syllables. The POS tagging system with the proposed model has demonstrated the $F_1$-score of 97.5% for the ETRI tree-tagged corpus. Thus it can be decided that the proposed model is very useful to handle morpheme recovery in Korean.