• Management Science and Financial Engineering
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• v.16 no.2
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• pp.29-38
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• 2010

As the Internet is more embedded in people's lives, Internet users draw on new Internet applications to express themselves through "user-created content (UCC)." In addition, there is a noticeable shift from text-centered contents mainly posted on bulletin boards to multimedia contents such as images and videos on UCC web sites. The changes require different way of recommendations comparing to traditional products or contents recommendation on the Internet. This paper aims to design UCC recommendation methods with user behavior data and contents metadata such as tags and titles, and compare performances of the suggested methods. Real web logs data of a major Korean video UCC site was used to empirical experiments. The results of the experiments show that collaborative filtering technique based on similarity of UCC customers' preferences performs better than other content-based recommendation methods based on tag information and content metadata.

• Journal of the Korean Society of Clothing and Textiles
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• v.16 no.1 s.41
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• pp.3-21
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• 1992

The main objective of this study was to find out the relationship between life style types and clothing evaluatie criteriria. Social wear was selected according to the defined time, place, and occasion's. The questionnaire was administered to 640 housewives during the fall of 1988. The research problems were as follows: 1. To segment the target according to their life styles, and to profile the characteristics of the categorized life style types. 2. To determine the differences in the clothing evaluatie criteria among the various life style types. The result were as follows: 1. Five life style types were defined. They were the Achievement oriented type, the Active- leisure type, the Material oriented type, Conservative-frugal type, and the Passive-stagnant type. 2. The differences in consumer preferences at the element level evaluative criteria including color, fiber content, fabric construction, fabric design, and classes of clothes among the five life style types were also analyzed revealing partial significance.

• Journal of Microbiology and Biotechnology
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• v.30 no.6
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• pp.793-803
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• 2020

Adaptive laboratory evolution (ALE) is an evolutionary engineering approach in artificial conditions that improves organisms through the imitation of natural evolution. Due to the development of multi-level omics technologies in recent decades, ALE can be performed for various purposes at the laboratory level. This review delineates the basics of the experimental design of ALE based on several ALE studies of industrial microbial strains and updates current strategies combined with progressed metabolic engineering, in silico modeling and automation to maximize the evolution efficiency. Moreover, the review sheds light on the applicability of ALE as a strain development approach that complies with non-recombinant preferences in various food industries. Overall, recent progress in the utilization of ALE for strain development leading to successful industrialization is discussed.

• Perspectives in Nursing Science
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• v.15 no.1
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• pp.41-48
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• 2018

Purpose: The purpose of this study was to identify the latest evidence for interventions involving adolescent newlyweds, and the feasibility of premarital coaching (PMC). Methods: A narrative literature review design carried out through related studies was used for the present literature review. A diverse search from several databases was performed to create a critical appraisal and to develop a more integrated model for the PMC program. Studies that empirical, written in English, peer-reviewed, and published during 2008~2017 were included. Results: Six articles were selected for the review. The principal findings identified three major themes including underage period as a high-risk for marriage, development tasks of the newly married spouse, parenting self-efficacy and the psycho-educational approach of PMC to enhance parenting knowledge, skills, and readiness. Conclusion: It was found that content of PMC as the preparation of underage married couples were formulated based on coaching technic, various spouse and parenting educations, and adjusted based on couples's preferences. Rigorous studies with measurement of long-term retentions are needed.

• Architectural research
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• v.22 no.1
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• pp.1-11
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• 2020

From 1990s to the present, in China, residential communities has developed rapidly in terms of government policies and living environments. With economic development, dwelling commercialization and socialization gradually reshaped the housing distribution system and local government management in Chinese urban area. After this process, dwellings were endowed with commodity attributes, which were planned and designed depending on residents' requirements of life. During the 30 years of social transformation, Chinese citizens' lifestyle also had huge changes. In this period, the forms of residential area improved constantly to keep pace with social development. This study aims to research the features of contemporary communities and survey citizens' lifestyle changes to find the reasons of the evolution of communities. Moreover, in this paper, there is a clear explanation of the reasons why gated communities are popular in Chinese urban area. In addition, comprehensive data analysis is derived from a questionnaire administered in Shanghai, China. In this part, the questionnaire surveys what factors about lifestyle influence the transformation of living environments and residential buildings. The results of survey show that residents have housing preferences dependent on their lifestyles, and their daily needs related with environmental features.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1992.04b
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• pp.117-126
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• 1992

This study proposes a new interactive multicriteria method for determining the best levels of the decision variables needed to optimize a stochastic computer simulation with multiple response variables. The method, called the Pairwise Comparison Stochastic Cutting Plane (PCSCP) method, combines good features from interactive multiple objective mathematical programming methods and response surface methodology. The major characteristics of the PCSCP algorithm are: (1) it interacts progressively with the decision maker (DM) to obtain his preferences, (2) it uses good experimental design to adequately explore the decision space while reducing the burden on the DM, and (3) it uses the preference information provided by the DM and the sampling error in the responses to reduce the decision space. This paper presents the basic concepts of the PCSCP method along with its performance for solving randomly selected test problems.

• Korean Journal of Organic Agriculture
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• v.17 no.2
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• pp.135-150
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• 2009

This paper was to use choice experiments in the analysis of consumer choice behavior and preferences for five different attributes(the origin of rice, a quality certificate, a quality control, a traceability system, the price of rice) in Cheongju City. Completed surveys yielded 712 responses which were analyzed using the conditional logit model to analyze the marginal willingness to pay of the four attributes(the origin of rice, a quality certificate, a quality control and a traceability system) per household and estimated the marginal willingness to pay of the set of feasible options. The result of this study can be used as a guide for the rice industry in the design of possible labeling schemes.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.10a
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• pp.571-572
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• 2016

현재 모바일 게임 이용자들은 모바일 게임을 선택할 때 친구들의 직접적인 추천이나 SNS에서의 추천을 이용하여 선택한다. 이러한 이유는 기존의 추천 시스템에서 제공하는 정보가 적합하지 않기 때문이다. 이에 본 연구에서는 불확실한 상황이나 다양한 평가 항목들에 대한 중요도 및 선호도를 순위화하여 우선순위가 높은 항목을 선택하게 하는 계층적 분석 방법을 적용하여 사용자들의 선호도를 직접적으로 반영할 수 있는 모바일 게임 추천 시스템을 제안하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2008.06c
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• pp.115-120
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• 2008

유비쿼터스 컴퓨팅에서의 플랫폼 기술은 상황인지(context-awareness) 기술과 재구성형 네트워킹(reconfiguration networking) 기술이 융합되어 가면서 병행하여 발전되고 있으며 최근에는 이종간의 다른 리소스를 가지고 있는 모바일 플랫폼간의 자율적인 공유를 통한 보다 큰 개념의 유비쿼토스 서비스가 제공 되고 있다. 본 논문은 사용자의 선호도를 고려한 서비스 기술과 서비스 추론 기술을 제안한다. 특히 본 논문에서는 데이터마이닝 기법을 이용하여 사용자 선호도에 기반한 서비스를 제공한다. 본 논문은 상황인지 시스템에서 온톨로지를 활용한 고도화된 서비스 추론 엔진과 함께 데이터마이닝기법을 이용하여 사용자의 과거 이력 분석을 통해 최적의 서비스등 다른 분야의 방법들을 함께 결합시킴으로서 상황 인지 시스템에서의 새로운 사용자 선호도 기반 서비스 패러다임을 제공하는 것을 목적으로한다.

• Journal of Korean Society for Quality Management
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• v.25 no.4
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• pp.168-184
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• 1997

The primary objective of this paper is to develop an interactive computer graphic aided decision su, pp.rt system for the design of inspection plans for complex production systems. This research first develops a computer simulator, called Simulator for Inspection Systems(SIS), in order to represent the production system as a network model. The simulator elicits fundamental information about the system from the decision maker(DM) in an interactive manner. A decision su, pp.rt system is then proposed by combining SIS and Compromise Programming. The system simulates a set of possible inspection strategies implicitly, observes all the important measurements about the inspection system, and employs the compromise programming a, pp.oach to help the DM determine the best compromising allocation of inspection effort considering his/her preferences. Finally, the performance of the proposed system is evaluated using two test cases. The pros and cons of the system are also discussed.