• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2004년도 춘계학술발표대회
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• pp.1083-1086
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• 2004

Switched Network는 Shared Network 에 비해서 스니핑에 안전하다. 하지만 비교우위일뿐 절대적으로 스니핑에 안전한 것은 아니다. 이미 Switched Network 상에서 스니핑을 할 수 있는 공격툴들이 많이 소개되어 있다. 본 논문에서는 Switched Network 상에서 ARP(Address Resolution Protocol) 스푸핑을 통한 ARP 캐시 오염을 통하여 스니핑이 가능한 시나리오를 기술한다. 이러한 시나리오를 탐지하기 위한 기존의 방법은 DHCP와 같은 동적인 환경이 포함된 경우 False Positive 를 자주 발생시키기 때문에 문제가 된다. 여기에서는 이러한 False Positive를 줄인 탐지 방법을 제시하고자 한다.

• International Journal of Computer Science & Network Security
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• 제21권6호
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• pp.1-6
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• 2021

Recently, pre-trained convolutional neural network CNNs have been widely used and applied for medical image classification. These models can utilised in three different ways, for feature extraction, to use the architecture of the pre-trained model and to train some layers while freezing others. In this study, the ResNet18 pre-trained CNNs model is used for feature extraction, followed by the support vector machine for multiple classes to classify medical images from multi-classes, which is used as the main classifier. Our proposed classification method was implemented on Kvasir and PH2 medical image datasets. The overall accuracy was 93.38% and 91.67% for Kvasir and PH2 datasets, respectively. The classification results and performance of our proposed method outperformed some of the related similar methods in this area of study.

• 정보관리학회지
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• 제37권2호
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• pp.71-93
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• 2020

오늘날 다양한 질병의 출현과 빠르게 변화하는 의료환경에 보다 효과적으로 대처하기 위해 대학병원 내에서 여러 진료과들이 협업진료를 수행하고 있다. 이러한 협업진료는 매우 중요하며 의료 현장에서 이미 보편화되어 있다. 그럼에도 불구하고, 이에 대한 연구, 특히 진료과들이 어떻게 협업을 하고 있는지에 대한 연구는 전무하다. 따라서 본 연구는 대학병원 내의 진료과 간의 협업진료 관계를 탐색하여 진료협업 네트워크 특성들이 연도별 및 계절별로 어떻게 달라지는지를 고찰하는 것에 목적이 있다. 본 연구는 국내 A대학교 대학병원에서 이루어진 29개 진료과 사이의 협업 진료를 연도별 및 계절별로 나누어 29개 진료과 협업 네트워크를 분석하였다. 협업진료의 요청 및 피요청에 따라 방향네트워크를 구성하였으며, 매개중심성, 아이겐벡터중심성, 근접중심성 분석, 에고 네트워크 분석 및 팩션분석과 더불어 추후 인터뷰도 실시하였다. 본 연구는 최초의 진료과 간의 협업 네트워크 분석을 수행하였으며, 의료기관 내에서의 동선을 고려한 진료과의 위치 및 공간 구성에 새로운 통찰력을 제시할 것으로 기대된다.

• 대한한의학원전학회지
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• 제31권4호
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• pp.27-46
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• 2018

Objectives : In this paper, we investigated the applicability of text mining to Korean Medical Classics and suggest that researchers of Medical Classics utilize this methodology. Methods : We applied text mining to the Huangdi's internal classic, a seminal text of Korean Medicine, and visualized networks which represent connectivity of terms and documents based on vector similarity. Then we compared this outcome to the prior knowledge generated through conventional qualitative analysis and examined whether our methodology could accurately reflect the keyword of documents, clusters of terms, and relationships between documents. Results : In the term network, we confirmed that Qi played a key role in the term network and that the theory development based on relativity between Yin and Yang was reflected. In the document network, Suwen and Lingshu are quite distinct from each other due to their differences in description form and topic. Also, Suwen showed high similarity between adjacent chapters. Conclusions : This study revealed that text mining method could yield a significant discovery which corresponds to prior knowledge about Huangdi's internal classic. Text mining can be used in a variety of research fields covering medical classics, literatures, and medical records. In addition, visualization tools can also be utilized for educational purposes.

• 한국농촌건축학회논문집
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• 제10권4호
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• pp.41-48
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• 2008

Recently, Rural village of japan are enlarging and enriching the service of health, medical and welfare facilities for the elderly. Concentrated arrangement of the three types of facilities is one of the effective ways especially for the small-scale local governments. This paper focus on a questionnaire survey of employees who work in the facilities to evaluate service network. Using this survey data, it is used to make a plan of intensive arrangement. As a result, their satisfaction with concentrated arrangement was considerable high. In particular, they expressed satisfaction with service network between Medical and Welfare. Due to increasing outpatients, the concentrated arrangement has contributed to hospital funds and given emotional security to the aged in welfare facilities. In order to promote service network effect, there are many opinions that management of health facilities(local governments) is needed.

• 산업경영시스템학회지
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• 제30권4호
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• pp.21-29
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• 2007

We derive priority decision making on healthcare service technology standardization in the home network through the decision support process with industry professionals. We configured a research group with 4 industrial areas including Industry, Academic, Research Institution and Medical Institution. And we also applied AHP methodology for the priority decision making. The research group decides an evaluation criteria which are consisted of marketability, technology, ripple effect, strategy for national policies in order to make a priority for healthcare service on a home network. And it is also decided 7 fields and 24 sub-fields, technically. In order to make a priority for the standardization, we use an AHP methodology, that is more objective and feasible, as a decision tool. After two-phase survey that consists of paper survey and face to face meeting, we get a conclusion that home healthcare content is at the top and then wireless home network follows it.

• 대한한의학원전학회지
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• 제31권4호
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• pp.69-78
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• 2018

Objectives : The aim of this study was to diversify the interpretation of formulas used for insomnia treatment by searching and analyzing herbal combinations in formulas used for insomnia treatment in Korean medicine. Methods : Frequency analysis was conducted on herbal combinations of 255 formulas related with insomnia, along with network analysis using Netminer 4.2.1. Results : This study has found herbal combinations used frequently in Korean medicine formulas used for insomnia treatment, and a result of network analysis composed of four communities. Each community consisted of herbs in affiliation of Yookmijihwangtang(六味地黃湯) and Samultang(四物湯), Bohyulchunghwatang(補血淸火湯) and Ondamtang(溫膽湯), Jungjihwan(定志丸) and Sanjointang(酸棗仁湯). Conclusions : This study could help in assisting researchers to diversify formula analysis in future studies. Moreover, the herbal combination in insomnia formulas could be used to search for insomnia formulas in other databases or creating a new prescription.

• Journal of Communications and Networks
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• 제16권4호
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• pp.465-474
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• 2014

Wireless sensor network (WSN) is considered to be one of the most important research fields for ubiquitous healthcare (u-healthcare) applications. Healthcare systems combined with WSNs have only been introduced by several pioneering researchers. However, most researchers collect physiological data from medical nodes located at static locations and transmit them within a limited communication range between a base station and the medical nodes. In these healthcare systems, the network link can be easily broken owing to the movement of the object nodes. To overcome this issue, in this study, the fast link exchange minimum cost forwarding (FLE-MCF) routing protocol is proposed. This protocol allows real-time multi-hop communication in a healthcare system based on WSN. The protocol is designed for a multi-hop sensor network to rapidly restore the network link when it is broken. The performance of the proposed FLE-MCF protocol is compared with that of a modified minimum cost forwarding (MMCF) protocol. The FLE-MCF protocol shows a good packet delivery rate from/to a fast moving object in a WSN. The designed wearable platform utilizes an adaptive linear prediction filter to reduce the motion artifacts in the original electrocardiogram (ECG) signal. Two filter algorithms used for baseline drift removal are evaluated to check whether real-time execution is possible on our wearable platform. The experiment results shows that the ECG signal filtered by adaptive linear prediction filter recovers from the distorted ECG signal efficiently.

• KIEAE Journal
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• 제14권6호
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• pp.23-29
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• 2014

It is essential to investigate the structure and the main characteristics of BSN (Bio-Sensor Network) platform in built smart healthcare environment while designing healthy housing facilities. For this study, WSN (Wireless Sensor Network) data transmission technologies have been employed with medical sensors, and optimal medical devices would provide various Web 2.0 services by connecting to the WiBro network. The BSN platform normally recognizes in surroundings of WBAN (Wireless Body Area Network) or WPAN (Wireless Personal Area Network), and it is possible to manage sensor nodes by utilizing SOAP (Simple Object Access Protocol) and REST (REpresentational State Transfer). In addition, the feature of SNMP (Simple Network Management Protocol) for mobile gateway is also included for being adapted to huge network structure. Finally, BSN platform will play a role as important clues for developing personal WSN service models for smart healthy housing properties.

• 한국임상보건과학회지
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• 제2권1호
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• pp.59-71
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• 2014

Purpose. Medical tourism is recently becoming a new industry with great growth potential. The South Korean government is shifting medical tourism from simple cultural tourism to a high value-added industry with a new paradigm. Methods. The government has been providing positive support and marketing policies since the introduction of the article concerning foreign patient attraction to the medical law in 2009, and various types of medical institutions around the country has participated actively in medical tourism by themselves or in cooperation of government bodies and made increasingly greater performance. Results. This study obtained the following results. The medical institutions in Korea have been making efforts to see more development and profitability in diverse ways, including medical tourism for foreign patients and the advance of the Korean medical institutions into foreign markets. However, many local governing bodies and medical institutions participating in medical tourism around the country have primarily focused on examination and treatment on the basis of foreign patients' visit to South Korea and rarely built a medical network with other countries directly for medical tourism. This study presents a case of building a local medical network and a network for international medical tourism successfully on the basis of the local medical association, CMP, which has been formed naturally in Busan. The success factors for CMP included 1) enthusiasm of the official in charge; 2) the medical level, the service level, and open-mindedness of participant medical institutions; 3) cost efficiency due to executive office management with no costs, no conflicts, and constant partnership; 4) security of non-competitive expertise for participants; 5) local factors of CMP; 6) participation of good agencies; 7) reinforcement of participation networks; and 8) post facto management and local doctor management. Conclusions. Its positive effects included patient introduction and greater profitability on an internal basis as well as construction of the collaboration system with the institutions related to medical tourism and confidence. However, there are some limitations: it is still difficult to predict performance due to the short period of their activities, and it is necessary to continue to observe their constant activities since a single medical association was involved.