• International Journal of Knowledge Content Development & Technology
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• v.9 no.4
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• pp.69-93
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• 2019

The purpose of this study is to investigate the status of specialized services and the overall satisfaction of the operation of the specialized services for the librarians and users of the specialized libraries, and based on the ISA method, compare the specialized theme data, specialized service place, specialized program, specialized theme area facilities and environment, and derive issues of the specialized library operation and improvement measures. Consequently, first, when developing the program, the specialized library needs to develop programs in possession of unique characteristics specific to the areas of the differentiated themes from the cultural and educational programs run by the existing libraries. Second, it is necessary to focus on the specialized theme area information services for the users, and to this end, it is necessary to improve librarians 'professionalism. Third, it is necessary to secure the budget for the specialized services and secure space. Since the scope of the services which may be provided as per the budget intended for providing specialized services may be limited, it would be necessary to secure and operate the budget systematic to this end. Fourth, the specialized library needs to proceed with activities in connection with local residents for the purposes of facilitating specialized services.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.16 no.8
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• pp.2606-2626
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• 2022

In this paper, a unmanned aerial vehicle (UAV) access deployment algorithm is proposed, which is based on an improved virtual force model to solve the poor coverage quality of UAVs caused by limited number of UAVs and random mobility of users in the deployment process of UAV base station. First, the UAV-adapted Harris Hawks optimization (U-AHHO) algorithm is proposed to maximize the coverage of users in a given hotspot. Then, a virtual force improvement model based on user perception (UP-VFIM) is constructed to sense the mobile trend of mobile users. Finally, a UAV motion algorithm based on multi-virtual force sharing (U-MVFS) is proposed to improve the ability of UAVs to perceive the moving trend of user equipments (UEs). The UAV independently controls its movement and provides follow-up services for mobile UEs in the hotspot by computing the virtual force it receives over a specific period. Simulation results show that compared with the greedy-grid algorithm with different spacing, the average service rate of UEs of the U-AHHO algorithm is increased by 2.6% to 35.3% on average. Compared with the baseline scheme, using UP-VFIM and U-MVFS algorithms at the same time increases the average of 34.5% to 67.9% and 9.82% to 43.62% under different UE numbers and moving speeds, respectively.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.32 no.2
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• pp.124-134
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• 2024

This study is based on the Expectation Confirmation Theory (ECT) and categorizes trust types in non-face-to-face boarding services into three dimensions: structural assurance, platform, and service provider. It analyzes the impact of these trust types on users' perceived usefulness, satisfaction, and continuous usage intentions. Using a structural equation model, the study found that the three dimensions of trust positively influence users' satisfaction and perception of usefulness, thereby promoting intentions for continuous use. However, perceived risk weakens the positive relationship between trust and continuous usage intentions. By exploring the moderating role of perceived risk in non-face-to-face boarding services, this study analyzes its impact on user behavior patterns, contributing to the optimization of service design and enhancement of user trust. This study promotes widespread acceptance and continuous use of the service, and is crucial for developing effective non-contact service strategies that meet the needs and expectations of Chinese travelers in the post-pandemic travel environment. The findings provide a new perspective and empirical evidence for understanding user attitudes and behaviors towards non-face-to-face services, holding significant theoretical and practical implications.

• Journal of the Korean Society of Clothing and Textiles
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• v.41 no.6
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• pp.1060-1070
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• 2017

This study seeks methods to analyze users' perception in fashion designs shown in social media using textmining analysis methods. The research methods selected 'men's stripe shirts' as subjects and collected texts related to the subject mainly from blogs. Texts from 13,648 posts from November 1st, 2015 to October 31st, 2016 were analyzed by applying the LDA algorithm and content analysis. As a result, the wearing status per season and subjects of men's stripe shirts were derived. Across the entire period, the main topics discussed by users to be pattern, customized suits, brands, coordination and purchase information. In terms of seasons, spring time showed the sharing of information on coordinating daily looks or boyfriend looks, and during the winter season the information shared were about shirts suitable for special occasions such as job interviews and stripe shirts that match suits. The study results showed that text-mining analysis is capable of analyzing the context and provide a user-centered index responding to demands newly mentioned by users along with the rapid changes in fashion design trends.

• Proceedings of the KOR-KST Conference
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• 2007.11a
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• pp.659-665
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• 2007

• Journal of Korean Library and Information Science Society
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• v.45 no.4
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• pp.231-251
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• 2014

This study is aimed to investigate and analyze the general perception of users on library collections and services of junior college libraries, including the use frequency, weight, use purposes, and unsatisfactory factors. In order to carry this purpose, the researcher investigated the perception of 700 students in S-women's college, analyzed the factors of use satisfaction and dissatisfaction by grades and major categories and suggested some alternative improvements.

• Journal of Information Technology Applications and Management
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• v.19 no.4
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• pp.97-113
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• 2012

In order to implement the real-time enterprise (RTE) and smart work effectively, many companies have introduced a mobile office. A mobile office improves employee productivity and increases ability to respond to business opportunities by helping employee manage their business anytime and anywhere. However, it also raises the user's stress level. We conducted in-depth interviews with users to assess user's perception of a mobile office according to Saaty's BOCR model. Based on the results of the interviews, we set variables affecting user's perception of the mobile office using factor analysis. This study revealed that support for real-time business, support for communication and collaboration, and information processing quality were positively related to continuous intention to use mobile office. Further study demonstrated that three variables have mediating effect between the psychological stress and continuous intention to use. This result implies that the system quality and function are the key elements of mobile office and may contribute to the continuous use.

• Journal of the Korea Convergence Society
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• v.9 no.12
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• pp.381-391
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• 2018

The goal of current study was to investigate the perception of emotional lighting according to the types of exercise participation of fitness center users. The subjects of this study were 292 people in Gyeongin area fitness center. As a survey tool, the color types used in the study of Oh & Kwak(2015) were used, and the color recognition was based on the emotional adjective scale used in Lee(1997). Data were analyzed using crossover, independent t-test and one-way ANOVA using SPSS23.0. The following conclusions can be drawn from the results of this study. First, emotional lighting color preference of fitness users varies according to Gender. Second, the difference of perception of color by emotional illumination of fitness users was found to be partially different in color and sex. Third, there was a difference in color recognition among emotional lighting color recognition according to exercise participation type of fitness users.

• Journal of Society of Preventive Korean Medicine
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• v.25 no.2
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• pp.85-98
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• 2021

Objectives : This study aimed to analyze characteristics of the Korean Medicine users aged 19-39 years, the determinants of Korean Medicine use and effects of Korean Medicine use experience on behavioral intentions among youths. Methods : We studied Korean Medicine Utilization and Herbal Medicine Consumption Survey(2017) data set by complex-sample survey data analysis. In order to derive the characteristics of younger users, Rao-scott χ² test and t-test were conducted. Through multiple logistic regression model adjusted by general characteristic variables, the determinants and behavioral intentions of the Korean Medicine utilization among youths were derived. Results : Fist of all, young users and non-users have significant differences in socio-demographic characteristics and perception on Korean Medicine. Among the general characteristic variables, region, age, marital status, occupation, chronic disease, and private health insurance plans had an effect on the Korean Medicine use in young people(Model II). And adjusted by general characteristic variables as control variables, awareness of Korean Medicine and perception of safety of herbal medicine were deduced as determinants of Korean Medicine use(Model III). Secondly, Korean Medicine use experience increased intentions to use and recommend Korean Medicine services(Model IV-1, 3). Conclusions : In order to increase the use of Korean Medicine among young people, Korean Medicine institutions should strive to increase users' satisfaction, and public health insurance coverage for Korean Medicine services needs to be expanded.

• Journal of the Korean Society for Library and Information Science
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• v.52 no.2
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• pp.221-244
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• 2018

The purpose of this study was to provide basic information necessary for establishing library development plan and service direction by comparing and analyzing the perception of librarian and user's public library. For this purpose, a questionnaire survey was conducted with 270 librarians and 820 public users of the Seoul Metropolitan Office of Education Public Libraries regarding the current environment of the library, the role and status of the future library, and the library policy. The results showed librarians viewed the long history and accumulated information resources as strengths, while users had the highest satisfaction with human resources. As for the role of the public library and its future status, both librarians and users perceived reading and education as more important, confirming that the two groups had common expectations for public libraries. Yet the two groups had different perceptions about the policy for enhancing future library roles. Librarians suggested the needs for the improvement of old facilities and continuing education for librarians, users indicated the collections and enlargement of reading room as more important, which suggested the library policy development considering the difference of the perceptions between the two groups.