[PA-0061] Construction of High-contiguity reference genome sequences of two Hibiscus syriacus accessions (Gangneung and Baekdansim)

Sangjin Go(Sangjin Go),Seongmin Hong(Seongmin Hong),Ah-Young Shin(Ah-Young Shin),Yong-Min Kim(Yong-Min Kim) 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-

Model-Based Angle-only Tracking of Known Aircraft Target Using Single Imaging Sensor

SHIN, Sangjin,CHUN, Joohwan,PARK, Jinkyu,WANG, Jinchun 日本航空宇宙学会 2005 Transactions of the Japan Society for Aeronautical Vol.47 No.158

<P>In the tracking of a target using a radar or an imaging sensor, the acceleration of the target is usually modeled as a random vector (or the process noise in the state-space model) with known statistical properties. For a highly maneuvering target, the process noise has a large covariance matrix, and consequently, the estimated state has a large error. This paper proposes an approach that estimates the acceleration from the attitude of the target and uses the estimated acceleration for accurate tracking of the target. An imaging sensor is used for attitude estimation of the target (an aircraft; in this paper) as well as for tracking, without reliance on radar. Our simulation shows that the proposed method can track a maneuvering target much more accurately than traditional Kalman filters.</P>

Predicate constraints based question answering over knowledge graph

Shin, Sangjin,Jin, Xiongnan,Jung, Jooik,Lee, Kyong-Ho Elsevier 2019 Information processing & management Vol.56 No.3

<P><B>Abstract</B></P> <P>Generally, QA systems suffer from the structural difference where a question is composed of unstructured data, while its answer is made up of structured data in a Knowledge Graph (KG). To bridge this gap, most approaches use lexicons to cover data that are represented differently. However, the existing lexicons merely deal with representations for entity and relation mentions rather than consulting the comprehensive meaning of the question. To resolve this, we design a novel predicate constraints lexicon which restricts subject and object types for a predicate. It facilitates a comprehensive validation of a subject, predicate and object simultaneously. In this paper, we propose Predicate Constraints based Question Answering (PCQA). Our method prunes inappropriate entity/relation matchings to reduce search space, thus leading to an improvement of accuracy. Unlike the existing QA systems, we do not use any templates but generates query graphs to cover diverse types of questions. In query graph generation, we put more focus on matching relations rather than linking entities. This is well-suited to the use of predicate constraints. Our experimental results prove the validity of our approach and demonstrate a reasonable performance compared to other methods which target WebQuestions and Free917 benchmarks.</P>

Cost-Benefit Analysis of Haemophilus Influenzae Type B Immunization in Korea

Sangjin Shin,Young Jeon Shin,기모란 대한의학회 2008 Journal of Korean medical science Vol.23 No.2

An economic evaluation of Haemophilus influenzae type b (Hib) immunization was conducted to examine whether Hib immunization should be included in the Korea’s national immunization program. The costs and benefits included direct and indirect values and an estimation of the economic efficiency. We determined that a universal Hib immunization program in Korea would prevent 17 deaths and 280 invasive Hib cases. When we assumed the one Hib immunization cost as 26,000 won, the national Hib immunization would cost 34.6 billion won. Costs for various Hib diseases were estimated at 26.8 billion won (11.8 billion won from direct costs and 14.9 billion won from indirect costs). A benefit-cost ratio of 0.77 showed that the economic efficiency of the integration of Hib immunization in Korea is low because of the low incidence rate of Hib disease and high price of vaccine. However, if the Hib immunization cost decrease to less than 20,000 won, a benefit-cost ratio increase to 1.0 and above, integrating Hib immunization into the national immunization program with economic efficiency can be considered.

Economic Evaluation of Prostate Cancer Screening Test as a National Cancer Screening Program in South Korea

Shin, Sangjin,Kim, Youn Hee,Hwang, Jin Sub,Lee, Yoon Jae,Lee, Sang Moo,Ahn, Jeonghoon Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.8

Background: Prostate cancer is rapidly increasing in Korea and professional societies have requested adding prostate specific antigen (PSA) testing to the National Cancer Screening Program (NCSP), but this started a controversy in Korea and neutral evidence on this issue is required more than ever. The purpose of this study was to provide economic evidence to the decision makers of the NCSP. Materials and Methods: A cost-utility analysis was performed on the adoption of PSA screening program among men aged 50-74-years in Korea from the healthcare system perspective. Several data sources were used for the cost-utility analysis, including general health screening data, the Korea Central Cancer Registry, national insurance claims data, and cause of mortality from the National Statistical Office. To solicit the utility index of prostate cancer, a face-to-face interview for typical men aged 40 to 69 was conducted using a Time-Trade Off method. Results: As a result, the increase of effectiveness was estimated to be very low, when adopting PSA screening, and the incremental cost effectiveness ratio (ICER) was analyzed as about 94 million KRW. Sensitivity analyses were performed on the incidence rate, screening rate, cancer stage distribution, utility index, and treatment costs but the results were consistent with the base analysis. Conclusions: Under Korean circumstances with a relatively low incidence rate of prostate cancer, PSA screening is not cost-effective. Therefore, we conclude that adopting national prostate cancer screening would not be beneficial until further evidence is provided in the future.

Effectiveness of Ultrasonographic Screening for Thyroid Cancer: Round-table Conference in the National Evidence-based Healthcare Collaborating Agency (NECA) in conjunction with the Korean Thyroid Association

Shin, Sangjin,Park, Sae Eun,Kim, Soo Young,Hyun, Min Kyung,Kim, Sun Wook,Kwon, Jin Won,Kim, Yeol,Kim, Won Bae,Na, Dong Gyu,Park, Hyun-Ah,Sheen, Seung Soo,Yi, Ka Hee,Chang, Hang-Seok,Cho, Jung Jin,Chun Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.12

Background: The incidence rate of thyroid cancer has been increasing worldwide in recent years, and it is also the most prevalent cancer when it comes to the number of patients among Korean women. With it, ultrasonographic screening test has also become very common. However, there is still controversy over the performance of this screening test. Therefore, the National Evidence-based Healthcare Collaborating Agency (NECA) organized a Round-table Conference on the issues regarding ultrasonographic screening for thyroid cancer in Korea. The objective of the conference was mainly about delivering worthwhile information reflecting social value for the current situation, which was based on evidence surrounding thyroid cancer screening that relevant experts investigated and agreed on. The significance of this Round-table Conference lies in the fact that we reviewed the current evidence, and we were able to discuss the social value and future direction for ultrasonographic screening in Korea.

Cost-Benefit Analysis of <i>Haemophilus Influenzae</i> Type B Immunization in Korea

Shin, Sangjin,Shin, Young-jeon,Ki, Moran The Korean Academy of Medical Sciences 2008 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.23 No.2

<P>An economic evaluation of <I>Haemophilus influenzae</I> type b (Hib) immunization was conducted to examine whether Hib immunization should be included in the Korea's national immunization program. The costs and benefits included direct and indirect values and an estimation of the economic efficiency. We determined that a universal Hib immunization program in Korea would prevent 17 deaths and 280 invasive Hib cases. When we assumed the one Hib immunization cost as 26,000 won, the national Hib immunization would cost 34.6 billion won. Costs for various Hib diseases were estimated at 26.8 billion won (11.8 billion won from direct costs and 14.9 billion won from indirect costs). A benefit-cost ratio of 0.77 showed that the economic efficiency of the integration of Hib immunization in Korea is low because of the low incidence rate of Hib disease and high price of vaccine. However, if the Hib immunization cost decrease to less than 20,000 won, a benefit-cost ratio increase to 1.0 and above, integrating Hib immunization into the national immunization program with economic efficiency can be considered.</P>

Keyword-based mobile semantic search using mobile ontology

Shin, Sangjin,Ko, Jihoon,Eom, Sungkwang,Song, Minjae,Shin, Dong-Hoon,Lee, Kyong-Ho SAGE Publications 2015 JOURNAL OF INFORMATION SCIENCE Vol.41 No.2

<P>A large volume of mobile data is being generated and shared among mobile devices such as smartphones. Most of the mobile platforms provide a user with a keyword-based full text search (FTS) in order to search for mobile data. However, FTS only returns the data corresponding to the keywords given by users as results without considering a user’s query intention. To overcome this limitation, we propose a semantically enhanced keyword-based search method. Although there are various semantic search techniques, it is hard to apply existing methods to mobile devices just as they are. This is caused by the characteristics of mobile devices such as isolated database structures and limited computing resources. To enable semantic search on mobile devices, we also propose a lightweight mobile ontology. Experimental results from the prototype implementation of the proposed method show that the proposed method provides a better user experience than the conventional FTS and returns accurate search results in an acceptable response time.</P>

딥러닝을 이용한 적외선 정맥 분류에 관한 연구

신상진(Sangjin Shin),김문철(Munchul Kim),김명하(Myungha Kim),신승철(Seungchul Shin),임승택(Seungtaek Lim),나경필(Kyoungpil Ra) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.11

본 논문에서는 혈관(정맥)에 적외선을 쏘면 적혈구만 적외선을 통과하지 못하여 정맥이 어둡게 보이는 원리를 이용하여 손등의 정맥을 스캔하여 안에 있는 적혈구를 인식, 이런 정맥의 혈관 굵기, 선명도, 모양을 패턴을 저장 및 암호화하여 인증수단으로 이용하였고, 딥러닝을 이용하여 정확도를 높이는 방안을 제시하였다.

미·중 전면적 전략 경쟁시대 중국의 대북정책과 북·중관계: 미·중관계와 북·중관계의 연관성

신상진 ( Shin Sangjin ) 국방대학교 안보문제연구소 2020 국방연구 Vol.63 No.4

이 연구는 미·중관계가 중국의 대북정책에 미치는 영향을 분석하였다. 특히 미국 트럼프 행정부가 중국을 전면적 전략경쟁 상대로 규정하고 강도 높은 압박정책을 전개한 후 중국의 대북 정책과 북핵 정책에 어떠한 변화가 나타났는지를 분석했다. 이를 통해 미·중관계가 중국의 대북정책과 북·중관계에 영향을 미치는 중요한 변수로 작용하고 있다는 점을 논의했다. 또한 중국이 대미 관계에서 북한을 어떻게 인식하고 활용하는가, 중국의 대미 관계에서 북한의 전략 가치가 증대되었는가를 살펴보았다. 또한 미·중관계가 중국의 대북 정책에 영향을 미치는 핵심 요인이기는 하지만, 미·중관계가 불투명하고 대립구도가 심화되는 상황에서 중국의 안보에 전략적 완충역할을 할 수 있는 북한이 어떠한 태도를 보이는가도 북·중 관계에 중요한 영향을 준다는 점을 확인했다. 이는 북한이 미·중 사이에서 줄타기를 통해 전략이익을 추구하고 있다는 점을 의미한다. The purpose of this study is to analyze the effect of U.S.-China relations on China's North Korea policy, under the assumption that the China-North Korea relations are determined by the superpower politics. In particular, this study analyzed the changes in China's North Korea policy and North Korea's nuclear policy after the United States began to refer to China as a strategic rival. Through this study, it has been confirmed that the U.S.-China relationship is a decisive variable which affects China's North Korea policy and China-North Korea relations. The study also examined how China perceives and uses North Korea to deal with the United States, and whether the strategic value of North Korea has decreased or increased in China's relations with the United States. Since U.S.-China relations has been entered comprehensive strategic competition, it has been confirmed that the attitude and behavior of North Korea, which is a strategic buffer in China's security, has an important influence on China-North Korea relations. This means that North Korea is pursuing strategic interests through tightrope walking between the U.S. and China.