• International Journal of Contents
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• v.14 no.2
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• pp.16-23
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• 2018

Although there have been studies regarding the influence of customer reviews on consumer decision making at online shopping sites, research on factors affecting the perceived customer review quality for online shopping sites is limited. This study posits that sociability, which is one of the environmental factors of an online shopping site, can affect the quality of customer reviews. Sociability is a key factor in building a collaborative environment online, but studies have been limited to applying sociability to customer reviews that are the result of a collaborative environment. This study expects that sociability affects the performance of online shopping sites through the perceived information quality of customer reviews, and customers' efficacy. More specifically this study investigates the structural relationship between sociability, self-efficacy, collective efficacy, and the perceived information quality of the reviews in an online shopping context, regarding the patronage intention of customers. This study was conducted using a survey of 361 college students. The structural equation model results indicate that user perception of sociability increases self-efficacy and collective efficacy. The improved efficacy enhances the perceived information quality of reviews for online shopping sites, which increases patronage intention of customers. This study found that online shopping sites require a platform for customers to engage in social interaction to enhance their customers' loyalty and lifetime value.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.15 no.2
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• pp.383-403
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• 2021

With the development of mobile edge computing (MEC), some late-model application technologies, such as self-driving, augmented reality (AR) and traffic perception, emerge as the times require. Nevertheless, the high-latency and low-reliability of the traditional cloud computing solutions are difficult to meet the requirement of growing smart cars (SCs) with computing-intensive applications. Hence, this paper studies an efficient offloading decision and resource allocation scheme in collaborative vehicular edge computing networks with multiple SCs and multiple MEC servers to reduce latency. To solve this problem with effect, we propose a context-aware offloading strategy based on differential evolution algorithm (DE) by considering vehicle mobility, roadside units (RSUs) coverage, vehicle priority. On this basis, an autoregressive integrated moving average (ARIMA) model is employed to predict idle computing resources according to the base station traffic in different periods. Simulation results demonstrate that the practical performance of the context-aware vehicular task offloading (CAVTO) optimization scheme could reduce the system delay significantly.

• Journal of the Korean Chemical Society
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• v.58 no.6
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• pp.638-648
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• 2014

The purpose of this study was to examine mentor teachers' difficulties during their collaborative mentoring process to improve beginning science teachers' teaching practice. Participants were fourteen science teachers. This study collected questionnaires for mentor teachers' perception of the mentoring program, questionnaires for mentor teachers' efficacy, a record and transcript of interview, a record and transcript of mentoring conversation, and mentor teachers' journals for the study. The result showed that mentor teachers were having difficulties with mentee teachers when they have different major or work in different levels of school, and they found it hard to set aside time for mentoring due to heavy amount of school work. Also, they had low self-confidence experiencing a lack of expertise as a mentor teacher, and some mentor teachers were having difficulties in building a rapport with mentee teachers. Mentor teachers had difficulties as well when they have different point of view with mentee teachers about mentoring.

• Journal of Korean Medicine Rehabilitation
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• v.29 no.1
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• pp.41-61
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• 2019

Objectives The purpose of this survey was to investigate the using experiences and attitudes of general public toward the East-West collaborative medical practices (EWCMP). Methods We selected objects in general public and structured questionnaires were administrated to both 295 offline participants and 795 online participants. The data was collected from 15 to 28 February 2016 and analyzed statistically by frequency, ${\chi}^2$ cross-over analysis with SPSS software. Results The total number of participants was 1,090 and 66.1% of them has heard but only 19.5% has ever used EWCMP. For participants who has used EWCMP, the decision to use it was made by themselves (53.2%), 44.0% of them was satisfied with EWCMP, 89.4% of them showed revisiting intention to EWCMP hospital, and 72.2% of them showed the intention to introduce EWCMP to others. And 52.3% of them were optimistic about the prospects of EWCMP, especially in the field of disease treatment (49.9%) and rehabilitation (20.6%). On the reasons for lack of development of EWCMP, 31.9% of them listed prejudices existing on both sides firstly (31.9%). Preferred type of EWCMP was to use both western and Korean medical treatment at the same weight (53.9%). To promote EWCMP, it is required to confirm the concept of collaborative medical practice to the medical professions and government authorities (29.5%). Conclusions Considering low proportion of utilization and positive attitude toward the EWCMP among general populations, it is need to introduce or advertise EWCMP to them.

• Journal of Internet of Things and Convergence
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• v.9 no.6
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• pp.37-44
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• 2023

As a primary technology of Industry 4.0, human-robot collaboration (HRC) requires additional measures to ensure worker safety. Previous studies on avoiding collisions between collaborative robots and workers mainly detect collisions based on sensors and cameras attached to the robot. This method requires complex algorithms to continuously track robots, people, and objects and has the disadvantage of not being able to respond quickly to changes in the work environment. The present study was conducted to implement a web-based platform that manages collaborative robots by recognizing the emotions of workers - specifically their perception of danger - in the collaborative process. To this end, we developed a web-based application that collects and stores emotion-related brain waves via a wearable device; a deep-learning model that extracts and classifies the characteristics of neutral, positive, and negative emotions; and an Internet-of-things (IoT) interface program that controls motor operation according to classified emotions. We conducted a comparative analysis of our system's performance using a public open dataset and a dataset collected through actual measurement, achieving validation accuracies of 96.8% and 70.7%, respectively.

• 대한공업교육학회지
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• v.39 no.2
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• pp.37-57
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• 2014

This study investigated perception of first-year college students who recently experienced technology education in their secondary education for describing contemporary technology classrooms. To accomplish this goal, survey and in-depth interview on their technology classrooms were employed. Participants in this study were 427 first-year college students who began their college life in 2013 and consisted of 224 students enrolled in 10 departments of educational major and 203 students who enrolled in 9 departments of other colleges. The instrument of this study consisted of preference toward technology classrooms and teachers, experience in the secondary technology classrooms, perception toward technology teachers, and suggestions for technology classrooms with five point Likert scales and open-ended questionnaires. And individual in-depth interviews with 22 volunteers who answered the instrument and consented the interview process were conducted. Based on the collected data, statistical and theme analyses were performed and the key findings were as follows. First-year students' experiences for technology classrooms were described with the theme of 'learning contents or activities'(54.4%). And the negative perception toward technology classrooms(29.1%) was larger than he positive perception(16.5%). The perception toward technology classrooms was also presented with two themes of teaching methods and subject interest. The perception toward technology teachers presented a medium level preference with several themes of teachers' teaching methods, teachers' personality, and subject interest. Lecture style method(60.48%) was largely used in the participants' technology classrooms and problem solving or collaborative methods was not frequent(19.31%). The participants indicated a need for improving teaching methods in technology education and suggested sufficient administration and curriculum supports and transitions of the learning contents. Further studies investigating the diverse public's perception toward technology and technology classrooms could be recommended.

• Journal of the Korean Society of Clothing and Textiles
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• v.32 no.2
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• pp.259-270
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• 2008

The convenience and flexibility due to the spread of Internet allowed consumers to easily participate in marketing activity. Consumers want to participate in designing, manufacturing, delivering of products and service by expressing their opinions to the companies because they want to buy customized goods where their requirements are incorporated. We can expect that, through this interactive process of customization between consumers and companies, strong relationship quality may be built as a result of the interaction. The main purpose of this study is to examine the influence of consumer perception of customization on relationship quality in the e-business context. To accomplish this purpose, I reviewed the concept of customization, identified the perceptive factors of customization in e-business context (i.e., perception of participation level, assessment of flexibility), and examined the type of customization. Whether customization type generates varying degrees of perception of customization and relationship quality is revealed. As a result, collaborative product/service customization generated the highest relationship quality. Assembled product customization that was built based only on predicted consumer needs without any interaction between consumer and company showed a low level of relationship quality. And this type had no significant difference from standardized products. In short, there is a strong need for e-business companies to interact with consumers to improve relationship quality.

• Journal of Korea Multimedia Society
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• v.25 no.4
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• pp.649-659
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• 2022

The most important factor in pre-school children's psychological perception is ease of learning, and the closest measure is "natural" interaction. This study aims to explore the potential of tangible user interfaces (TUI) for AR collaboration for children's cognitive development. The conceptual model is constructed by analyzing physical interaction, spatial perception and social collaboration on the usability of TUI, to explore the role of TUI in pre-school children's cognition. In the empirical study, children aged 3-6 were taken as research objects. The experimental tool is "Plugo" education application. Parents answered questionnaires after observing their children's use. Research shows that physical interaction are the most critical factor in TUI. TUI is beneficial to the cultivation of spatial ability. The results are as follows: 1. Cronbach's Alpha and KMO were 0.921 and 0.965, which were significant and passed the reliability and validity test. 2. Through confirmatory factor analysis (model fit index, combinatorial validity), we found that physical interaction were closely related to usability. 3. The path analysis of the relationship proves that usability has a significant impact on the cultivation of pre-school children's spatial ability.

• Korean Association of Arts Management
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• no.52
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• pp.107-133
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• 2019

This article is aimed at exploring what factors influence the perception change of the consumers for the cultural heritage values in the case of the cultural heritage policy program entitled with the cultural heritage Yahaeng. The consumers is considered as a key factor in the value creation system of the cultural heritage Yahaeng. It is necessary that the priority of the cultural heritage Yahaeng should be shifted from the supplies to the consumers. The consumer-based model of cultural heritage utilization is used as a theoretical framework. This study examines the influence of cultural heritage authenticity, cultural motivation, management system, loyalty on the perception change of the consumers for the cultural heritage values. This study is empirically examined by the means of a survey conducted on 205 visitors in the case of the Suncheon Yahaeng. The results indicate that the cultural heritage Yahaeng positively influences the perception change of the consumers for the cultural heritage values. In addition, the results indicate that cultural heritage authenticity is the most important factor which positively influences the perception change of the consumers for the cultural heritage values. In addition, the results indicate that cultural motivation positively influences on the perception change of the consumer for the cultural heritage values through the mediating variable of the loyalty. In line with its results, the article recommends that the significance based management system, evaluation system focused on the perception of the consumers for the cultural heritage should be established in the future. The article concludes that the local residents should be importantly considered as consumers and the collaborative partners in the cultural heritage Yahaeng.

• The Journal of the Korea Contents Association
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• v.13 no.10
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• pp.584-593
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• 2013

The purpose of this research is to analyze students' perception of smart learning focusing on its definitions, roles and values in distance higher education. In the online survey, 1,950 students of 'A' open university were participated. The results show that the students viewed the smart learning to be more 'absorbing', 'interactive' and 'collaborative' than the existing e-learning, as it compiles their experiences into learning. However, the respondents' perceptions of smart learning varied among different age groups: more students in their 40s and 50s responded that smart learning was 'customized', 'humanlike', 'interactive', 'comfortable', 'stable', 'familiar', 'unstressful', and 'practical' than students in their 20s and 30s, and they tend to view the main feature of smart learning to be the compilation of learner experiences.