수준별 TED Talk 제공 및 내용 요약 기법

지선미(Seonmi Ji ),김용성(Yongsung Kim),황인준(Eenjun Hwang) 한국정보과학회 2017 한국정보과학회 학술발표논문집 Vol.2017 No.06

단어 특징의 의미적 보강을 이용한 트위터 뉴스 분류 기법

지선미(Seonmi Ji),문지훈(Jihoon Moon),김현우(Hyeonwoo Kim),황인준(Eenjun Hwang) Korean Institute of Information Scientists and Eng 2018 정보과학회논문지 Vol.45 No.10

Recently, with the popularity of Twitter as a news platform, many news articles are generated, and various kinds of information and opinions about them spread out very fast. But since an enormous amount of Twitter news is posted simultaneously, users have difficulty in selectively browsing for news related to their interests. So far, many works have been conducted on how to classify Twitter news using machine learning and deep learning. In general, conventional machine learning schemes show data sparsity and semantic gap problems, and deep learning schemes require a large amount of data. To solve these problems, in this paper, we propose a Twitter news-classification scheme using semantic enrichment of word features. Specifically, we first extract the features of Twitter news data using the Vector Space Model. Second, we enhance those features using DBpedia Spotlight. Finally, we construct a topic-classification model based on various machine learning techniques and demonstrate by experiments that our proposed model is more effective than other traditional methods.

An octopus-derived peptide with antidiuretic activity in rats

Ye-Ji Kim,Jei Ha Lee,Seung-Hyun Jung,Ki Hyun Kim,Chang-Hoon Choi,Seonmi Jo,Dong Ho Woo 한국실험동물학회 2022 한국실험동물학회 학술발표대회 논문집 Vol.2022 No.7

Effects of diesel exhaust particles and urban particles on brain endothelial cells

Kim Ji Young,Hong Seonmi,Bolormaa Ochirpurev,Seo Je Hoon,Eom Sang-Yong,Kim Yong-Dae,Kim Heon 한국독성학회 2022 Toxicological Research Vol.38 No.1

Exposure to diesel exhaust particles (DEPs) and urban particles (UPs) increases the incidence of degenerative brain diseases as well as respiratory diseases. However, there is limited evidence on the mechanism of neurotoxicity on exposure to these particles. In the present study, the damage to blood–brain barrier (BBB) function by DEP or UP exposure was evaluated in bEnd.3 cells, which are derived from the brain tissue of Balb/c mice. It was demonstrated that DEP and UP exposure may induce oxidative stress via increasing reactive oxygen species (ROS) and decreasing total antioxidant capacity (TAC) level in bEnd.3 cells. In addition, cells exposed to DEP and UP demonstrated a resistance value of about 50% each compared to the value noted prior to exposure; additionally, Claudin-5 and ZO-1 expression levels were significantly decreased compared to the corresponding levels in the control. It was inferred that DEP or UP exposure diminishes the expression of tight junction proteins in endothelial cells through ROS generation, thereby enhancing endothelial membrane permeability. This study showed that DEPs or UPs induced cell permeability and oxidative stress by increasing ROS generation in bEnd.3 cells. This suggests the possibility that exposure to DEPs or UPs may compromise the integrity of the BBB and induce adverse effects in the CNS.

IoT-based personalized NIE content recommendation system

Kim, Yongsung,Jung, Seungwon,Ji, Seonmi,Hwang, Eenjun,Rho, Seungmin Springer-Verlag 2019 MULTIMEDIA TOOLS AND APPLICATIONS Vol.78 No.3

모체태아의학

김혜인 ( Hye In Kim ),( Seonmi Nam ),( Yejin Park ),( Yun Ji Jung ),( Ha Yan Kim ),( Kyung Won Kim ),( Myung Hyun Sohn ),( Young-han Kim ),( Joon-ho Lee ),( Soo Jong Hong ),( Ja-young Kwon ) 대한산부인과학회 2020 대한산부인과학회 학술대회 Vol.106 No.-

Objective: In this study, we evaluated the prevalence of allergic disease in offsprings delivered via the delivery modes of vaginal delivery vs. planned Cesarean section vs. Cesarean section with labor. Methods: This study included 175 mother-neonate pairs from Severance Hospital who were enrolled in the Cohort for Childhood Origin of Asthma and allergic diseases study. Information regarding prenatal environmental factors, delivery, and diagnosis of allergic diseases was obtained from a questionnaire and medical record review. Patients with at least 3 years of follow-up data were included in this study. Results were adjusted for sex, birthweight, gestational age at birth, season of birth, neonatal intensive care unit admission, parity, breastfeeding, and maternal factors. Results: A total of 175 offsprings were eligible for analysis. Among the subjects, 52.0% were delivered by vaginal delivery, 34.3% by planned Cesarean section, and 16.6% by Cesarean section with labor. Fifty-nine offsprings (33.7%) were diagnosed with allergic disease at a median age of 1 year (range 0.5-3 years). The prevalence of allergic disease was not associated with delivery mode after adjusting for confounding variables. Time period from membrane rupture to delivery, duration of the active phase, and the beginning of the pelvic division prior to Cesarean section were not associated with allergic disease development in offsprings. Conclusion: Cesarean section, irrespective of the occurrence of labor before surgery, did not increase the prevalence of allergic disease in infants up to 3 years of age.

우리나라 자살률의 추세변동에 관한 연구

박종순(Jongsoon Park),김순덕(Soonduck Kim),지선미(Seonmi Ji),이제숙(Jesuk Lee) 한국역학회 2003 Epidemiology and Health Vol.25 No.2

Purpose :This study was conducted to analysis the trends and states of suicide mortality in Korea from 1983 to 2001. Methods: This study was based on data published in 1983-2001 from the annual report of the cause of death statistics of National Statistical Office. Results: First, both of annual suicide rate and adjusted suicide rate rapidly went up in 1996 and hit the highest in 1998. Second, since 1983 only when the suicide rate was the highest in the ages 20-24 rather than other age groups, the suicides have been continuously shown to be the highest in the old age group. Third, the seasonal percentages of suicides were generally high in spring and summer, the seasons when the percentage of sunshine is relatively high, in both results for men and women. Fourth, men have most frequently committed suicide through hanging while their suicide through falling from a high site have least frequently occurred but currently tends to gradually increase. Meanwhile, women have most frequently done suicide generally by using insecticide. Conclusion: In Korea, the suicide rate and suicide percentage of the old people have been yearly increasing, and their suicide rate is also shown to the highest rather than those of other age groups. Therefore, it is necessary to prevent the suicide of the old people through a systematic analysis. Moreover, it is necessary to verify the risk factors and defensive factors for the suicide impulse and suicide attempt. On the basis of this, the construction of a nationwide social safety network for the national mental health is very important to find and treat the problems of the mental health to lead the people to suicide.

엔트로피 가중치를 활용한 지역별 홍수취약도 기반의 서울지역 강우기준 산정기법

이선미,최영제,이은경,지정원,이재응,Lee, Seonmi,Choi, Youngje,Lee, Eunkyung,Ji, Jungwon,Yi, Jaeeung 한국수자원학회 2022 한국수자원학회논문집 Vol.55 No.4

Recently Flood damage volume has increased as heavy rain has frequently occurred. Especially urban areas are a vulnerability to flooding damage because of densely concentrated population and property. A local government is preparing to mitigate flood damage through the heavy rain warning issued by Korea Meteorological Administration. This warning classification is identical for a national scale. However, Seoul has 25 administrative districts with different regional characteristics such as climate, topography, disaster prevention state, and flood damage severity. This study considered the regional characteristics of 25 administrative districts to analyze the flood vulnerability using entropy weight and Euclidean distance. The rainfall classification was derived based on probability rainfall and flood damage rainfall that occurred in the past. The result shows the step 2 and step 4 of rainfall classification was not significantly different from the heavy rain classification of the Korea Meteorological Administration. The flood vulnerability is high with high climate exposure and low adaptability to climate change, and the rainfall classification is low in the northern region of Seoul. It is possible to preemptively respond to floods in the northern region of Seoul based on relatively low rainfall classification. In the future, we plan to review the applicability of rainfall forecast data using the rainfall classification of results from this study. These results will contribute to research for preemptive flood response measures.

서울시 일부 보건소에 등록된 폐결핵 재발 환자의 특성에 관한 연구

한송이(Songyi Han),김순덕(Soonduck Kim),박종순(Jongsoon Park),지선미(Seonmi Ji),이제숙(Jesuk Lee) 한국역학회 2003 Epidemiology and Health Vol.25 No.2

Purpose: The purpose of this study is to survey general and clinical characteristics of a group of relapsed patients with pulmonary tuberculosis, who are registered at a public health center in order to provide basic data for treatment of a patient s relapse, follow-up examination after the flrst treatment and health education. Subject: Among 68 relapsed patients with pulmonary tuberculosis registered at two public health centers in Seoul from Jan, I, 2002 to Dec. 31, 2002, 50 patients were selected as research subjects because they were contactable by telephone and they agreed to be a research subject. Method: The research carried out the structured questionnaire survey by telephone and surveyed research subjects' general and clinical characteristics, diseases except tuberculosis, drinking and smoking habit and knowledge about pulmonary tuberculosis treatment. Furthermore, the results of x-ray, whether a cavity existed or not, bacteriologic test, culture examination and drug resistance examination were examined and interval to relapse and history of dose attitude were surveyed. Results: Among relapsed tuberculosis patients, male patients were 60% and they were more than women(40%). Patients over 60 were 42% most. ]n their occupation, 30% of them were unemployed and 50% of patients surveyed had monthly income below one million won. According to the findings in radiographic extent, most 50% of them were minimal, 44% were moderately advanced and 2% were far advanced. Patients who had cavity were 30%. According to the result in bacteriologic test, 54% showed positive smear pulmonary tuberculosis and 50.0% positive culture. According to the result in drug resistance, 24% showed drug resistance against one drug and 76% showed sensitive response. 46% had experienced medication side effects. According to interval to a relapse, 32% were relapsed less than 2 years, 14% less than 3-5 years and 54% more than 5 years. Average interval before a relapse were 11.6 years(11.6±11.15). There was a difference between their past regimen and their present regimen(P=0.001). The attitude towards taking a medication was assessed and they showed higher compliance with medication at present than in the past(P=0.001). In a case of smoking rate during treatment, the rate of non-smokers, who had been smokers, were higher(P=0.047). Conclusion: As a result, in order to prevent the disease from being relapsed and to increase the rate of treatment effectiveness, we need to make patients recognize the importance of regular follow-up examination and we should control thoroughly the patients. Furthermore, we need to provide them with more health education not to stop taking a medication earlier.

다목적 활용을 위한 화천댐 용수공급능력 평가 연구

이은경,이선미,지정원,이재응,정순찬,Lee, Eunkyung,Lee, Seonmi,Ji, Jungwon,Yi, Jaeeung,Jung, Soonchan 한국수자원학회 2022 한국수자원학회논문집 Vol.55 No.6

In April 2020, the Korean government decided to operate the Hwacheon reservoir, a hydropower reservoir to supply water, and it is currently under pilot operation. Through the pilot operation, the Hwacheon reservoir is the first among the hydropower reservoirs in Korea to make a constant release for downstream water supply. In this study, the water supply capacity of the Hwacheon reservoir was estimated using the inflow data of the Hwacheon reservoir. A simulation model was developed to calculate the water supply that satisfies both the monthly water supply reliability of 95% and the annual water supply reliability of 95%. An optimization model was also developed to evaluate the water supply capacity of the Hwacheon reservoir. The inflow data used as input data for the model was modified in two ways in consideration of the impact of the Imnam reservoir. Calculating the water supply for the Hwacheon reservoir using the two modified inflows is as follows. The water supply that satisfies 95% of the monthly water supply reliability is 26.9 m³/sec and 24.1 m³/sec. And the water supply that satisfies 95% of the annual water supply reliability is 23.9 m³/sec and 22.2 m³/sec. Hwacheon reservoir has a maximum annual water supply of 777 MCM (Million Cubic Meter) without failure in the water supply. The Hwacheon reservoir can supply 704 MCM of water per year, considering the past monthly power generation and discharge patterns. If the Hwacheon reservoir performs a routine operation utilizing its water supply capacity, it can contribute to stabilizing the water supply during dry seasons in the Han River Basin.