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광 기록 시스템을 위한 멀티모드 변조 코드의 DC-억압 코드 선택 방법
이명진,이준,이재진,Lee, Myoung-Jin,Lee, Jun,Lee, Jae-Jin 한국통신학회 2003 韓國通信學會論文誌 Vol.28 No.3C
Multi-mode coding method is a reliable DC-suppression method. There are two ways to improve the DC-suppression performance. One is improving scrambler's performance, and the other is improving selection criteria. The latter uses the MRDS(minimum running digital sum) criterion. It is easy to calculate, but its performance goes down when the length of codeword is getting longer. The MSW(mean squared weight) criterion that is known as the best so far regardless of the length of codeword has the high complexity. In this paper, we present the new selection criteria, MPRDS(minimum peak RDS) and A BSRDS(absolute RDS). Their performance are close to the MSW, implementation is simple. And also we present the SC(sign change) that has a subsidiary role with the original selection criteria and improve the capacity. 신뢰할 수 있는 DC-억압(DC-suppression) 방법으로 멀티모드 코딩 방법이 있다. 멀티모드 코드의 DC-억압 성능을 향상시키는 방법에는 스크램블러(scrambler)의 성능을 개선하는 방법과 후보 코드워드의 선택 기준(selection criteria)을 개선하는 방법이 있다. 후보 코드워드의 선택 기준으로 흔히 사용되는 MRDS(minimum running digital sum) 기준은 계산 및 구현이 쉬운 반면에 후보 코드워드의 길이가 길어질수록 성능이 저하되는 단점이 있다. 코드 워드 길이에 무관하게 최고의 성능을 갖는 MSW(mean squared weight) 기준은 구현상의 복잡도가 높다는 단점을 가진다. 본 논문에서는 이론상으로 가장 효율이 우수한 MSW의 성능에 근접하면서, 하드웨어 구현이 용이한 MPR DS(minimum peak RDS)와 ABSRDS(absolut RDS)라는 새로운 선택 기준을 제시하였고, 기존의 선택 기준과 함께 사용 시 보조적인 역할을 하여 성능 향상을 도모할 수 있는 SC(sign change) 알고리즘을 제시하였다.
이명진,이원진,이승국,정형섭,Lee, Moung-Jin,Lee, Won-Jin,Lee, Seung-Kuk,Jung, Hyung-Sup 대한원격탐사학회 2022 大韓遠隔探査學會誌 Vol.38 No.6
Recently, deep learning has become more important in remote sensing data processing. Huge amounts of data for artificial intelligence (AI) has been designed and built to develop new technologies for remote sensing, and AI models have been learned by the AI training dataset. Artificial intelligence models have developed rapidly, and model accuracy is increasing accordingly. However, there are variations in the model accuracy depending on the person who trains the AI model. Eventually, experts who can train AI models well are required more and more. Moreover, the deep learning technique enables us to automate methods for remote sensing applications. Methods having the performance of less than about 60% in the past are now over 90% and entering about 100%. In this special issue, thirteen papers on how deep learning techniques are used for remote sensing applications will be introduced.
An Agent Communication Language for Negotiation in BDI Agents Environments
이명진,김진상,Lee, Myung-Jin,Kim, Jin-Sang Korea Information Processing Society 2003 정보처리학회논문지B Vol.10 No.1
Negotiation plays a fundamental role in human cooperative activities, allowing people to resolve conflicts that could interfere with cooperative behaviors. Negotiation In multi-agent systems is achieved through the exchange of messages In a shared agent communication language (ACL). We introduce a rational negotiation meta-language for autonomous, self-interested, and resource-bounded artificial BDI agents. We then propose a negotiation protocol for BDI agents with communicative acts based on their mental states. 인간의 협동적인 활동에서 협상은 협동적인 행위를 방해할 수 있는 충돌을 해결하는데 중요한 역할을 담당한다. 이를 위해 멀티 에이전트 시스템에서의 협상이 공통의 에이전트 통신 언어를 사용하는 메시지의 교환을 통해 진행한다고 가정한다. 본 논문에서는 자율적이고, 자기 목표에 충실하면, 한정된 자원을 가진 BDI 에이전트를 위한 합리적인 협상 메타 언어를 가정한다. 또한 에이전트의 정신적인 상태에 바탕을 두고 통신하는 BDI 에이전트를 위한 협상 프로토콜을 제안한다.
이명진,김동률,Lee, Myoung Jin,Kim, Dong Ryul 대한족부족관절학회 2016 대한족부족관절학회지 Vol.20 No.1
We reported on a rare case of recurred macrodystrophia lipomatosa of the foot, and reviewed the literature. A 62-year-old male patient presented with right foot second toe pain; preoperative magnetic resonance imaging and radiograph examination was performed. After surgery the biopsy confirmed the diagnosis. American Orthopaedic Foot and Ankle Society score was checked before and after surgery. Wide excision of the affected area including ray amputation is an effective way to prevent recurrence and relieve the pain after surgery. The 2nd toe ray amputation was performed in the treatment of recurred macrodystrophia lipomatosa of the foot, and is thought to be an effective way to relieve pain and prevent recurrence. After minimally invasive surgery with complete excision surgery, additional data on recurrence and pain relief rate are needed.
반하가 천식이 유발된 생쥐 폐조직의 유전자 발현에 미치는 영향
이명진,김종한,최정화,박수연,Lee, Myung-Jin,Kim, Jong-Han,Choi, Jeong-Hwa,Park, Su-Yeon 대한한방안이비인후피부과학회 2008 한방안이비인후피부과학회지 Vol.21 No.3
Objective : This study investigated the effects of PR(Pinelliae Rhizoma) on gene expression of lung tissue resected from asthma induced mice using intra-nasal instillation. Methods : Gene expression levels were measured using a microarray technique, and a functional analysis on these genes was conducted. Results : A total of 3270 genes were up-regulated or down-regulated, 860 genes which were lowered by induction of asthma were restored to those of naive animals, Furthermore hand, 1235 genes were lowered to normal levels, which were elevated by induction of asthma. Most of changed genes were involved in signalling pathways. Genes in which expression levels were restored by oral administration of PR were involved in MAPK pathway, focal adhesion, and regulation of actin cytoskeleton etc. Genes of which expression levels were lowered by oral administration of PR were involved in rhodopsin-like receptor activity, zinc ion binding and ATP binding. These genes were also involved in neuroactive ligand receptor interaction, the JAK-STAT signaling pathway and also the T-cell receptor signaling pathway. Conclusion : These results demonstrate the strong possibility that the mechanisms of PR on asthma are involved in neuroactive ligand receptor interaction pathway or related molecules.