• 대한원격탐사학회지
• /
• 제19권1호
• /
• pp.71-80
• /
• 2003

In this Paper, we Propose web-based Media GIS architecture using 3D geographical database and GPS-related data resulted from 45-Van. We introduce a novel interoperable geographical data service concept; so-called, Virtual World Mapping (VWM) that can map 3D graphic world with real-world video. Our proposed method can easily retrieve geographical information and attributes to reconstruct 3D virtual space according to certain frame in video sequences. Our proposed system architecture also has an advantage that can provide geographical information service with video stream without any image processing procedures. In addition to, describing the details of our components, we present a Media GIS web service system by using GeoVideoServer, which performs VWM technique.

• 한국정보처리학회:학술대회논문집
• /
• 한국정보처리학회 2011년도 춘계학술발표대회
• /
• pp.1112-1115
• /
• 2011

웹 2.0 시대의 웹에는 UCC 같은 소비자가 직접 미디어를 생성하고 소비하는 프로세스가 등장하여 일반화되고 있다. 본 연구는 이러한 인터넷 사용의 트렌드에 발맞추어 다종의 멀티미디어 콘텐츠를 포함하는 개인화된 맞춤형 콘텐츠 추천 에이전트를 개발하였다. 웹 상에 존재하는 다양한 콘텐츠 중에 사용자의 선호패턴과 일치하는 콘텐츠들을 추천하여 서비스하는 본 시스템은 유무선 환경을 망라하는 다기종의 디바이스들을 위한 플랫폼들을 지원하고 있다. 또한, 사용자들이 웹 상에서 콘텐츠들을 등록하고 생성하여 각 사용자들의 그룹과 친구와의 공유가 가능하다.

• 한국방송∙미디어공학회:학술대회논문집
• /
• 한국방송∙미디어공학회 2022년도 하계학술대회
• /
• pp.93-96
• /
• 2022

IoT 기기의 보급 및 확산으로 많은 산업군에서 이를 바탕으로 시계열 데이터를 획득하고 분석하려는 시도가 확대되고 있다. 시간의 흐름에 따라 저장된 데이터들은 주기에 따라 특정 패턴을 갖는 경우가 많으며 이러한 패턴을 파악한다면 주요 산업군의 의사 결정에 도움이 된다. 그러나 IoT 기기의 수집 오류 및 네트워크 환경에 의해 대부분의 시계열 데이터들은 누락 데이터, 이상 데이터를 갖고 있으며 이를 처리하지 않고 분석할 경우 오히려 잘못된 결과를 초래한다. 본 논문에서는 패턴 파악을 위해 '시간, 일, 주, 월, 년' 등 시간의 주기를 기준으로 데이터를 분할하며 이에 기반하여 데이터셋을 재구성하고 활용 가능한 데이터와 불가능한 데이터로 구분한다. 선별된 데이터셋은 클러스터링에 적용하였으며, 제안하는 방법을 적용할 경우 주기를 갖는 시계열 데이터를 활용하는 분석 및 학습에서 더 나은 결과를 보임을 확인하였다.

• International Journal of Contents
• /
• 제15권1호
• /
• pp.10-24
• /
• 2019

This study applied network agenda-setting theory to analyze the impact of the agenda-setting function of the media on certain issues by focusing on the agenda at the center of controversy, 'Creative Economy'. To this end, the study extracted the data referred to creative economy in the media and SNS from 1 January 2008 to 31 December 2014, and analyzed the data using the network analysis program UCINET and the Korean language analysis program Textom. The results of the present study show that, during the period under former President Lee (2008-2011), the media's creative economy agenda-setting function did not exert a significant impact on the agenda-setting within SNS. However, from 2012 when the government of former President Park Geun-hye had started, the agenda-setting function of the media starts to show increasingly strong influence on the agenda cognition in SNS. The central words and sub-words configuration forming the center of the semantic network moved in the direction of a high correlation, in addition to the gradually increasing correlation based on QAP correlation analysis. In 2014, the semantic networks of the media and SNS bore a close resemblance to each other, while the shape of networks and sub-words structure also had a high level of similarity.

• Clinical and Experimental Reproductive Medicine
• /
• 제42권1호
• /
• pp.22-29
• /
• 2015

Objective: Sperm must be properly prepared in in vitro fertilization (IVF)-embryo transfer (ET) programs in order to control the fertilization rate and ensure that embryos are of high quality and have appropriate developmental abilities. The objective of this study was to determine the most optimal sperm preparation method for IVF. Methods: Patients less than 40 years of age who participated in a fresh IVF-ET cycle from November 2012 to March 2013 were included in this study. Poor responders with less than three mature oocytes were excluded. Ham's F-10 medium or sperm-washing medium (SWM) was used in combination with the density-gradient centrifugation/swim-up (DGC-SUP) or SUP methods for sperm preparation. A total of 429 fresh IVF-ET cycles were grouped according to the media and methods used for sperm preparation and retrospectively analyzed (DGC-SUP/Ham's F-10, n=82; DGC-SUP/SWM, n=43; SUP/Ham's F-10, n=181; SUP/SWM, n=123). Results: There were no significant differences among these four groups with respect to the mean age of the female partners, duration of infertility, number of previous IVF cycles, and retrieved oocytes. We determined that both the DGC-SUP and SUP methods for sperm preparation from whole semen, using either Ham's F-10 or SWM media, result in comparable clinical outcomes, including fertilization and pregnancy rates. Conclusion: We suggest that both media and both methods for sperm preparation can be used for selecting high-quality sperm for assistive reproductive technology programs.

• 대한불안의학회지
• /
• 제14권2호
• /
• pp.71-79
• /
• 2018

Objective : Several earlier studies have reported similar symptoms in patients with posttraumatic stress disorder (PTSD) who have been repeatedly exposed to relevant media after disasters and trauma. This study aimed to examine the effects of indirect trauma experience through media rather than direct traumatic events on an individual's social life. Methods : Five hundred and fifty-four individuals participated in our online, self-reported questionnaire survey. All subjects were asked to complete a demographic questionnaire, Posttraumatic Diagnostic Scale, Beck Depression Inventory, the Impact of Event Scale-Revised, State-Trait Anxiety Inventory, Korean version of Alcohol Use Disorder Identification Test, Patient Health Questionnaire-15, Suicidal Behaviors Questionnaire-Revised. Participants were assessed in regards to their experience of violent media exposure within the past three months. Results : Data from our study indicates that the group exposed to violent media had significantly higher perceived stress, physical symptoms, insomnia, and suicide ideation in comparison to the control group. Among the major symptoms of PTSD, the proportion of intrusion symptoms was relatively high in the media exposed group. Conclusion : This suggests that indirect trauma caused by media exposure could cause post-traumatic stress symptoms. The PTSD caused by indirect trauma may have slight differences from the PTSD caused by direct trauma. Therefore, it is necessary to understand, prevent, and control the adverse effects of media.

• 한국문헌정보학회지
• /
• 제37권2호
• /
• pp.27-56
• /
• 2003

학교도서관의 미디어전문가는 교육현장의 요구에 부응하여 학습목표 달성에 필수적으로 요청되는 학습자료와 교수 매체를 조사, 평가, 선정하여 제공함으로써 정보전문가로서, 또 학습 상담자로서 주어진 역할을 완수할 수 있다. 사회변화와 정보기술 발달로 학교도서관 소장자료의 형태와 소장범위가 크게 달라지고 있는 현 상황에서 본 논문을 통해 제시된 유형별 교수매체 선정기준을 지침으로 삼아 미디어전문가는 다양하고도 엄청난 양의 정보매체 중에서 학습목표 달성에 필수적으로 요청되는 교수매체를 조직적으로 평가선정할 수 있을 것이다. 특히 그 중요성이 부각되고 있는 학습용 소프트웨어, 멀티미디어/하이퍼미디어에 대한 평가기준과 디지털 참고서비스의 질적기준은 교육정보화를 추진하고있는 국내 교육계의 요구에 맞추어 유용하고도 적절한 교수공학 매체를 선정할 수 있는 지침으로 활용될 수 있다.

• Journal of Magnetics
• /
• 제7권3호
• /
• pp.106-114
• /
• 2002

To reduce the grain size and the media noise in a typical CrMo/CoCrPtB longitudinal media, a sputtering process which includes the exposure of oxygen onto the surface of CrW$_x$ (x=0, 25, 50, 75, 100 at.%) and CrTi$_{15}$ seedlayers with the thickness of 0.5 nm have been utilized. The main results are: (1) the media grain size and the media noise are reduced when using CrW$_x$ (x=0, 25, 50 at.%) seedlayers, and not reduced when using CrTils or CrW$_x$ (x=75, 100 at.%) seedlayers, (2) AES and RHEED results suggest that W seedlayer, which has the highest melting point, forms layer-like film with very small and dense island grain, due to its high free surface energy and low mobility. On the other hand, CrW$_{50}$ and Cr seedlayers, which have lower melting point than W seedlayer, form island film, (3) to effectively reduce the media grain size and improve the media signal to noise ratio, it is essential to utilize a very thin Cr-based seedlayer with high affinity for oxygen and which forms island-like structure, such as CrW$_{50}$ seedlayer.

• 한국입자에어로졸학회지
• /
• 제8권4호
• /
• pp.133-141
• /
• 2012

A new depth filter media was designed and samples of flat sheet as well as cartridge assembly were prepared and tested to evaluate the filtration performance and compare with the commercial product. The arrangement of the depth filter media layers is important to reach the optimal filtration parameters like filter pressure drop, particle collection efficiency and dust holding capacity. Initially, both flat sheet samples of new media and commercial product have been tested using standard test units. Tests with new depth filter media cartridges of various pleat count were conducted in order to find the optimal pleat count which would represent the lowest pressure drop. These tests give an insight on how the pleat count and the assembly configuration affect the performance of the depth filter media cartridge. By comparing the samples with a commercial product we could confirm relatively high filtration performance of the sample cartridge with pleat count 150 made of new depth filter media. The cartridge with the same pleat count exhibits better performance without the outer mesh.

• 한국정보처리학회:학술대회논문집
• /
• 한국정보처리학회 2016년도 추계학술발표대회
• /
• pp.569-570
• /
• 2016

본 논문은 뇌파 기반 감정 분류 기술의 상용화를 위한 낮은 성능을 보완하기 위하여 Regularized Common Spatial Pattern 필터링을 통한 전처리 방식을 제안하고 있다. RCSP 필터는 뇌파 기반 행동 인식 시스템에서 높은 성능 향상을 보이는 것으로 알려져 있다. 본 연구에서는 장기적이고 복합적인 뇌파의 감성 인지 연구에도 RCSP 필터의 적용 방법을 설명하고, 제안하는 알고리즘이 뇌파를 통한 감정 인식에 성능 향상을 보여준다는 것을 설명하고 있다.