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Automatic Parking System using Background Subtraction with CCTV Environment
Jungseok Cho,Jinrak Park,Untae Baek,Donghyun Hwang,Seibum Choi,Soohyun Kim,Kyungsoo Kim 제어로봇시스템학회 2016 제어로봇시스템학회 국제학술대회 논문집 Vol.2016 No.10
In this paper, a new automatic parking approach that uses a surveillance camera is suggested. Many parking lots have surveillance cameras. Vehicle position, attitude, and parking space detection methods using a based on CCTV environment are introduced. An entire auto parking system is realized using a small experimental vehicle. Existing auto parking systems are primarily ADAS (advanced driver assistance systems) that use extra sensors such as external cameras, ultrasonic sensors, and so on. The authors suggest an automatic parking system that does not impose an economic burden on drivers. Instead, drivers can use an automatic parking system based on CCTV environment, a central process computer, and a communication method between the computer and the driver’s car.
AlGaN-based deep ultraviolet light-emitting diodes on nanopatterned AlN/sapphire substrates
Donghyun LEE,Jong Won LEE,Jeonghwan JANG,In-Su SHIN,Lu JIN,Jungsub KIM,Jinsub LEE,Hye-Seok NOH,Yong-Il KIM,Youngsoo PARK,Gun-Do LEE,Yongjo PARK,Jong Kyu KIM,Euijoon YOON 한국진공학회 2016 한국진공학회 학술발표회초록집 Vol.2016 No.8
The Prospects for Further Economic Integration in ASEAN
Park, Donghyun 세종대학교 국제경제연구소 1999 Journal of Economic Integration Vol.14 No.3
The Association of Southeast Asian Nations (ASEAN), which celebrated its 30th anniversary in 1997, has enjoyed remarkable success as a forum for political coperation among the states of Southeast Asia. The challenge for ASEAN now is to replicate its political success in the sphere of economic cooperation, where it has had much less success up to now. The main goal of our paper is to investigate the likelihood that ASEAN can, in fact, become an engine of greater economic integration among the countries of Southeast Asia. In particular, we explore the future prospects for AFTA, the regional free trade area. (JEL Classification: F15, F14, F02)
Does Developing Asia Have Too Much Foreign Exchange Reserves? An Empirical Examination
Donghyun Park,Gemma Esther B. Estrada 한국경제연구학회 2010 Korea and the World Economy Vol.11 No.1
Developing Asian countries have accumulated foreign exchange reserves on an unprecedented scale in recent years. There is a growing consensus that Asia’s reserves now substantially exceed the levels required for precautionary purposes ? i.e., self-protection against currency crisis. The central objective of our paper is to informally and formally test whether reserves in developing Asia have in fact reached excessive levels. Informal tests of reserve adequacy based on widely used rules of thumbs such as the Greenspan-Guidotti rule unambiguously indicate the presence of sizable excess reserves. To test for excess reserves more formally, we use panel-data econometric analysis based on Edison (2003). Our estimation results indicate the presence of large and growing excess reserves since 2002. The results of both informal and formal tests thus confirm the popular belief that developing Asia now has excessive foreign exchange reserves. Therefore, the short-run policy challenge for Asian governments is to manage the region’s burgeoning excess reserves more actively and use them more productively. One promising area of future research, brought to the fore by the global financial crisis, is to develop more nuanced measures of reserve adequacy which take into account the possibility of severe negative shocks.
Park, Donghyun,Choi, Sun Shim Elsevier 2009 FEBS letters Vol.583 No.7
<P>This article has been retracted at the request of the Editor-in-Chief. Please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).</P><P>Reason: The authors have plagiarized part of a paper that had already appeared in Pál, C., Papp, B. and Lercher, M.J. An integrated view of protein evolution. <I>Nature Rev. Genet.</I>, 7 (2006) 337–348, doi:10.1038/nrg1838.</P><P>One of the conditions of submission of a paper for publication is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere. Re-use of any data should be appropriately cited. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and we apologize to readers of the journal that this was not detected during the submission process.</P>
( Donghyun Lee ),( Jae-hyun Park ),( Kwang-ho Kim ),( Jeong-sik Park ),( Ji-hwan Kim ),( Gil-jin Jang ),( Unsang Park ) 한국인터넷정보학회 2017 KSII Transactions on Internet and Information Syst Vol.11 No.9
In this paper, maximum likelihood-based automatic lexicon generation using mixed-syllables is proposed for unlimited vocabulary voice interface for East Asian languages (e.g. Korean, Chinese and Japanese) in AI-assistant based interaction with mobile devices. The conventional lexicon has two inevitable problems: 1) a tedious repetition of out-of-lexicon unit additions to the lexicon, and 2) the propagation of errors during a morpheme analysis and space segmentation. The proposed method provides an automatic framework to solve the above problems. The proposed method produces a level of overall accuracy similar to one of previous methods in the presence of one out-of-lexicon word in a sentence, but the proposed method provides superior results with the absolute improvements of 1.62%, 5.58%, and 10.09% in terms of word accuracy when the number of out-of-lexicon words in a sentence was two, three and four, respectively.