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The effect of advertising on sales
TeaHo Song,Xina Yuan,Jiyoon Kim,Sang Yong Kim 한국경영과학회 2008 한국경영과학회 학술대회논문집 Vol.- No.-
“How does advertising affect sales?” is the fundamental issue of modern advertising research. There is an interesting issue for estimating carry over effects of advertising on sales, and the aggregated data biases exist in the duration of advertising effect. This research suggests a modified model at micro-data using Koyck model (Koyck 1954) by estimated model the aggregate data, and empirically shows the aggregated data bias. Our modified model with the aggregated level of actual data is more appropriate than the base model for micro-data. The result shows that it is very important to consider the disaggregated data level in the analysis of dynamic effects of adverting such as lagged effects.
First ClustalX-MPI for Ultra-fast Protein and Gene Discovery
Teaho Kim(김태호),Jin Han(한진),Jae bum Youm(염재범),Nari Kim(김나리),Won sun Park(박원선),Sunghyun Kang(강성현),Dang Van Cuong,Hyoung kyu Kim(김형규),Tran Min Khoa,Vu Thi Thu,Hyunju Kim(김현주),Hyejin Moon(문혜진),Hyunsuk Lee 한국생물공학회 2005 한국생물공학회 학술대회 Vol.2005 No.10
Re-Considering Aggregated Data Bias by Extending "Koyck Model" of Advertising Effect
송태호(TeaHo Song),Xina Yuan,김지윤(Jiyoon Kim) 한국경영과학회 2009 韓國經營科學會誌 Vol.34 No.2
"How does advertising affect sales?" is the fundamental issue of modern advertising research. There is an interesting issue for estimating carryover effects of advertising on sales, and the aggregated data biases exist in the duration of advertising effect. This research suggests an extended model of Koyck Model which is employed for micro-data (Koyck 1954) to estimate aggregated advertising data. and empirically shows the aggregated data bias. Our developed model with the aggregated level of actual advertising data is more appropriate than the basic Koyck model for micro-data. The result figures out that it is important to consider the disaggregated data level in the analysis of dynamic effects of adverting such as carryover effects.
K-city 자율주행 경진대회 참가를 위한 자율주행 플랫폼 개발
김태호(Teaho Kim),김동진(Dongjin Kim),민동규(Dongkyu Min),서현지(Hyeonji Seo),윤호진(Hojin yun),정은빈(Eunbin Jung),이진강(Jingang Lee),권혁재(Hyeokjae Kwon),김진석(Jinseok Kim),김대국(Daekuk Kim),문일주(Iljoo Moon),유정흠(Jeongheum You 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
In this paper, a ROS-based autonomous driving framework designed by team ACCA from the School of Mechanical Engineering, Soongsil University, for the 2021 international college student creative car challenge held in K-city. The autonomous vehicle’s chassis used in this challenge is equipped with Velodyne 3D lidar, a Sick down-looking 2D lidar, Xsens MTi-30 AHRS, CCD camera, webcam, and PC-based controller. First, before the challenge in K-city, we evaluated the ROS-package-based SLAM such as LIO-SAM in a ring-shaped road environment on the campus of Soongsil University. After the successful SLAN and mapping process, the hdl_localization, which is a 3D lidar-based real-time 3D localization package, is used to estimate the global pose with respect to the global frame using NDT scan matching. For lane detection, traffic sign, and traffic signal recognition, the two well-known DNN models are utilized. Based on experimental results from both simulation and an actual autonomous vehicle platform, the Point Instance Network (PINet) for lane detection shows 88% of test accuracy, and the YOLO V4 for the traffic light and sign recognition offers 95% test accuracy.
재해구호기금 적립 및 사용 규정 개선에 관한 연구 : 광역지방자치단체 조례 분석을 중심으로
Jaehan Jung,Teaho Lee 한국재난정보학회 2016 한국재난정보학회 논문집 Vol.12 No.4
본 연구는 광역지방자치단체의 재해구호기금 적립 및 사용 조례를 분석하여 문제점을 도출하고 개선방안을 제시하고자 하였다. 연구결과 다수의 지방자치단체 조례에서 재해구호기금을 통합관리기금에 예탁하도록 규정하거나 지급할 수 없는 유족 또는 부상자 위로금을 지급할 수 있도록 규정하는 등 법령의 내용을 벗어난 규정이 발견되었으며 주무부처가 현행화 되지 않은 경우도 적지 않았다. 조례는 지방정부 활동의 근거가 되는 것으로 제대로 된 재해구호기금의 활용을 위해서는 조례의 정비가 반드시 이루어져야 할 것이다. The purpose of this study is to improve the disaster relief fund Ordinances in metropolitan government. The results of the analysis, it is found that ordinances of the large number of metropolitan governments are in violation of the statute. The ordinances are based on the local government activities. Therefore, the maintenance of the ordinance must be made in order to take advantage of disaster relief funds appropriately.
Sungsic Bang,Jeehye Seo,Teaho Kim,Dongho Choi,Zhuqing Wu,Jongmin Lee,Jinho Jo 한국실험동물학회 2008 Laboratory Animal Research Vol.24 No.4
Acquiring real-time microscopic images directly from laboratory animals is technically difficult. Fluorescencemediated observation of blood vessels and developing tumors is particularly challenging. We developed a titanium and polyethylene tissue window to observe under the skin and evaluated the feasibility of this approach in a rat model. The prerequisites of the tissue window were absence of foreign body reaction, high physical strength, and reduced invasiveness. Foreign body reaction was monitored for 1 week following installation on the back of each animal. Following the injection of fluorescent material, subcutaneous venous flow, tumor neovascularization flow, and cerebral surface vascular flow could be imaged using the tissue window.