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Underspecification in Optimality Theory: Vowel Harmony in Classical Manchu
Sung-Hoon Hong 한국음운론학회 2002 음성·음운·형태론 연구 Vol.8 No.2
Hong, Sung-Hoon. 2002. Underspecification in Optimality Theory: Vowel Harmony in Classical Manchu. Studies in Phonetics, Phonology and Morphology 8.2. 323-350. This paper addresses some important issues raised by A TR harmony in Classical Manchu, formerly treated as front/back harmony. Here, the front high vowel [i] is totally inactive with respect to the harmony: it is transparent to the harmony, and further, it does not initiate the harmony. I will show that these properties of [i] will be properly explained if we allow underspecified [i] as an option for inputs and output candidate forms. Allowing underspecified [i] in fact accords more with basic notions of Optimality Theory (OT) such as Freedom of Analysis and Richness of the Base than the analyses that do not tolerate this possibility. I will further show that once we allow underspecified [i], its selection in output candidate forms or in input forms is totally governed by OT principles such as constraint interaction and Lexicon Optimization, respectively. (Hansung University)
Underlying representation in geminates: from OT perspective
Sung-Hoon Hong,Chang-Kook Suh 한국음운론학회 2004 음성·음운·형태론 연구 Vol.10 No.1
Hong, Sung-Hoon, and Chang-Kook Suh. 2004. Underlying represen-tation in Geminates: from an OT perspective. Studies in Phonetics, Phonology and Morphology. 10.1. 129.144. This research has examined the status of Underlying Representation (UR) in Optimality Theory focusing on the representation of consonant geminates. For this purpose, we have examined geminate/singleton alternation in Ponapean employing Lexicon Optimization (LO), an algorithm proposed to select a UR among multiple inputs. We have seen that simple application of LO is problematic in singling out a UR for the case of alternation. This leads us to the version of LO that is performed on the paradigms, rather than on an individual forms (Tesar and Smolensky 1996, 2000, Inkelas 1995, 1998). After a thorough implementation of LO, we have found that the URs are simply identical to the input forms; geminate UR for the alternating case and singleton UR for the nonalternating case. Further, it was shown that a unique underlying representation of geminates, regardless of their positions in which they occur, can account for the exceptional geminate behaviors. (Hansung University and Cheonan University)
홍성훈 ( Sung Hoon Hong ),박선우 ( Sunwoo Park ) 경희대학교 언어연구소 2016 언어연구 Vol.33 No.2
In casual speech of Korean, words are often reduced to shorter forms by reducing one or more syllables from the original words. This word reduction comes in three types: simple deletion of one or more syllables from the source word, reduction motivated by hiatus avoidance, and reduction created by deletion of subsyllabic segment(s) with subsequent resyllabification. The third type, which we call "subsyllabic reduction (SSR)," is particularly interesting because it is not clear what motivates this specific deletion of segment strings and the subsequent phonological restructuring. This paper examines the issues surrounding SSR from the perspective of information theory (Shannon 1948) and proposes that SSR occurs to improve string well-formedness and collocational strength between segments, which are measured respectively by information-theoretic notions of ``positive logarithm`` (plog; Goldsmith 2002, 2011) and ``mutual information``. To elaborate this proposal, we compiled a list of reduced words created by SSR and examined how plog and mutual information vary with SSR. We obtained a partially positive result: Among the five types of SSR, the values of plog and mutual information change as we expected in three types, which account for 270 out of 309 cases of SSR. We suggested a tentative explanation for the remaining cases based on reverse derivation and word-edge effect. (Aitchison 2011). (Hankuk University of Foreign Studies · Keimyung University)
Park, Jinbong,Jeon, Yong-Deok,Kim, Hye-Lin,Lim, Hara,Jung, Yunu,Youn, Dong-Hyun,Jeong, Mi-Young,Kim, Hyun-Ju,Kim, Sung-Hoon,Kim, Su-Jin,Hong, Seung-Heon,Um, Jae-Young Hindawi Publishing Corporation 2013 Evidence-based Complementary and Alternative Medic Vol.2013 No.-
<P>Obesity has become a major health threat in developed countries. However, current medications for obesity are limited because of their adverse effects. Interest in natural products for the treatment of obesity is thus rapidly growing. Korean Medicine (KM) is characterized by the wide use of herbal formulas. However, the combination rule of herbal formulas in KM lacks experimental evidence. According to <I>Shennong's Classic of Materia Medica</I>, the earliest book of herbal medicine, <I>Veratrum nigrum</I> (VN) has antagonistic features against <I>Panax ginseng</I> (PG), and the PG-VN pair is strictly forbidden. In this study, we have shown the effects of PG, VN, and their combination on obesity in high-fat (HF) diet-induced obese mice and in 3T3-L1 cells. PG, VN, and PG-VN combination significantly reduced weight gain and the fat pad weight in HF diet-induced obese mice. They also significantly decreased lipid accumulation and the expressions of two major adipogenesis factors, PPAR<I><I>γ</I></I> and C/EBP<I><I>α</I></I>, in 3T3-L1 cells. In addition, the PG-VN combination had synergistic effects compared with the mixture of extracts of PG and VN on inhibition of PPAR<I><I>γ</I></I> and C/EBP<I><I>α</I></I> expressions at lower doses. These results indicate a new potential anti-obese pharmacotherapy and also provide scientific evidence supporting the usage of herbal combinations instead of mixtures in KM.</P>
Imprinted Moth-Eye Antireflection Patterns on Glass Substrate
( Sung Hoon Hong ),( Byeong Ju Bae ),( Kang Soo Han ),( Eun Ju Hong ),( Heon Lee ),( Kyung Woo Choi ) 대한금속재료학회(구 대한금속학회) 2009 ELECTRONIC MATERIALS LETTERS Vol.5 No.1
Sub-micron sized, conical shaped moth-eye structure was transferred to thermoplastic polymer film, such as polyvinyl chloride (PVC) using hot embossing process. Since master template was made of polycarbonate, embossing temperature and pressure were carefully maintained to 100℃ and 10 atm. Conical shaped moth-eye pattern was reversed to tapered hole pattern on PVC film. Hot embossed PVC film was then used as transparent template for subsequent UV nanoimprint process, in order to form the conical shaped sub-micron moth-eye structure on glass substrate. After thin layer of Si oxide and monolayer of self-assembled, silane based molecules was coated on hot embossed PVC film. UV nanoimprint process was done on the glass substrate using hot embossed PVC film. As a result, the transmittance of glass substrate was increased from 91 to 94% for single side patterned and 96% for both side patterned glass substrate for the spectral range of 350 to 800 nm.
Hong, Sang Hoon,Kim, Bumsu,Jung, Yong Gyu The Institute of Internet 2020 International Journal of Internet, Broadcasting an Vol.12 No.4
There are many airline customer evaluation data, but they are insufficient in terms of predicting customer satisfaction in practice. In particular, they are generally insufficient in case of verification of data value and development of a customer satisfaction prediction model based on customer evaluation data. In this paper, airline customer satisfaction analysis is conducted through an experiment of correlation analysis between customer evaluation data provided by Google's Kaggle. The difference in accuracy varied according to the three types, which are the overall variables, the top 4 and top 8 variables with the highest correlation. To build an airline customer satisfaction prediction model, they are applied to three classification algorithms of Random Forest, SVM, DNN and conduct a classification experiment. They are divided into training data and verification data by 7:3. As a result, the DNN model showed the lowest accuracy at 86.4%, while the SVM model at 89% and the Random Forest model at 95.7% showed the highest accuracy and performance.