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The Generation of Cluster Labels Based on Cluster Analysis for MMORPG Game
차유나,박상용,이원형 (사)한국컴퓨터게임학회 2022 한국컴퓨터게임학회논문지 Vol.35 No.2
characteristics at MMORPG Game, how to provide these users with efficient, safe, and personalized network services is a problem that needs to be solved urgently. The clustering algorithm needs to pre-determine the scale of user behavior data when analyzing network user behavior, and the generated clusters also lack semantic features. Therefore, this paper conducts cluster analysis on the characteristics of network user behavior data, and applies LFM, matrix decomposition and other methods to propose an automatic cluster label generation method for network user behavior clustering. The experimental results show that the proposed method does not need to determine the scale of user behavior data in advance, and cluster labels can be generated at the same time in the clustering process, and the generated cluster labels conform to the actual semantics of user behavior.
차유나,김성아,진상윤,Cha, You-Na,Kim, Seong-Ah,Chin, Sang-Yoon 한국BIM학회 2014 KIBIM Magazine Vol.4 No.4
After being introduced, Building Information Modeling (BIM) has been actively applied to the cost estimation of construction projects, and various studies on BIM based quantity take-off have been carried out. In practice, however, these calculations take considerable time, because BIM based quantity take-off is further conducted along with 2D-based quantity take-off. Studies on the quantity take-off using BIM spatial objects have been carried out on early stages of projects, but how this method differs from the existing quantity take-off method and how accurate it is in comparison have rarely been verified. Therefore, by comparing 2D based quantities with quantities through BIM spatial objects, this study analyzed the accuracy of quantity take-off using BIM spatial objects. To this end, the properties of BIM spatial objects and quantity calculable spatial types were analyzed, and existing 2D-based quantities and quantities extracted from BIM spatial objects were compared through a case study. As a result, the quantity of spatial objects found to be more by about 7.13% in 0.05% and therefore, this difference should be considered during quantity take-off using BIM spatial objects. Through the results of this study, we can improve the accuracy of quantity take-off using BIM spatial objects in the early stage of a construction project.