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A Hybrid Algorithm for Online Location Update using Feature Point Detection for Portable Devices
( Jibum Kim ),( Inbin Kim ),( Namgu Kwon ),( Heemin Park ),( Jinseok Chae ) 한국인터넷정보학회 2015 KSII Transactions on Internet and Information Syst Vol.9 No.2
We propose a cost-efficient hybrid algorithm for online location updates that efficiently combines feature point detection with the online trajectory-based sampling algorithm. Our algorithm is designed to minimize the average trajectory error with the minimal number of sample points. The algorithm is composed of 3 steps. First, we choose corner points from the map as sample points because they will most likely cause fewer trajectory errors. By employing the online trajectory sampling algorithm as the second step, our algorithm detects several missing and important sample points to prevent unwanted trajectory errors. The final step improves cost efficiency by eliminating redundant sample points on straight paths. We evaluate the proposed algorithm with real GPS trajectory data for various bus routes and compare our algorithm with the existing one. Simulation results show that our algorithm decreases the average trajectory error 28% compared to the existing one. In terms of cost efficiency, simulation results show that our algorithm is 29% more cost efficient than the existing one with real GPS trajectory data.
The suggestion of development direction for the 4th Industrial Revolution and Korea Logistics 4.0
( Choi Eun-jae ),( Jo Inbin ),( Choi Su-ha ),( Sim Seungo ),( Jang Haegun ),( Noh Dasom ),( Kim Janghyun ) 한국물류학회 2018 The Pan-Pacific Journal of Supply Chain Management Vol.2 No.1
This study analyzes the advanced cases to solve the problems such as weakening competitiveness if the response to the 4th Industrial Revolution of Korea slows down and introduces them into the Korean business canvas model. And we would like to suggest the direction that Korea should change in the era of the 4th Industrial Revolution. In order to achieve the purpose of the study, the business canvas model of the advanced cases in which the logistics advancement technology of the 4th Industrial Revolution era was introduced, and the blocks which should be reflected in Korea among the 9 blocks of the business model canvas were examined. After creating the AS-IS business model canvas of Korea based on the advanced case model, we introduced the business model canvas block element of the advanced case to the TO-BE business model canvas of Korea and presented the necessary elements to become a competitive country. It also suggests ways to introduce the technologies of advanced cases in detail and shows that Korea's logistics competitiveness can be increased in the future.