• 한국비블리아학회지
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• 제23권1호
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• pp.65-89
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• 2012

본 연구는 근거이론(Grounded Theory)방식을 이용하여 학술연구를 목적으로 한 이용자들의 불확신성과 관련된 정보추구행태를 조사하였다. 이론적 표집에 의하여 17명의 경영학 박사과정 연구자들을 대상으로 질문지, 심층적 인터뷰, 정보탐색과정상의 생각을 말하기 방식(Think-aloud descriptions)을 통한 자료수집이 이루어졌고 수집된 자료는 근거이론의 지속적인 비교분석에 의해 분석되었다. 연구결과는 정보요구의 식별, 정보시스템의 선정, 탐색어의 선택, 정보시스템의 이용 및 탐색결과의 평가 등 5단계에 걸친 이용자 불확신성을 식별하였다. 각 불확신성과 관련, 불확신성의 긍정적인 측면이 조사되었다. 연구결과의 주요 시사점은 정보시스템 및 서비스의 개선과 관련된다.

• 한국의류학회지
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• 제44권5호
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• pp.923-949
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• 2020

Improving work efficiency and satisfying customers through personalized services is becoming more important in an increasingly competitive hair industry. Wearables may help to improve hair designers' work efficiency and customer satisfaction by analyzing customer and hair designers' conditions and provide hair stylingrelated data. However, there is limited research on developing wearables for hair designers (WHDs), and many existing wearables were developed without understanding user needs and perceptions. This research investigated preferences, perceptions, and intentions on WHDs based on hair designers in the U.S., which is the largest hair market. Specific design options that hair designers preferred and possible options to meet requirements that hair designers expect for wearables were identified and suggested in WHD design guidelines. Second, most people preferred a WHD design of a black-colored bracelet/watch that can be a necklace designed with preferred functions; in addition, 3D virtual images and 3D printed models were prototyped. Third, developed designs were evaluated. More than 70% of users were satisfied and considered it as useful and easy to use, with an intention to purchase. The results are expected to provide insights to designers when developing WHDs.

• The Journal of Asian Finance, Economics and Business
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• 제8권3호
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• pp.1095-1100
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• 2021

This study aims to analyze the factors that influence people's behavioral intentions to recycle waste and focus on people's perceptions of informal waste recycling. The low level of participation in the e-waste recycling process makes research on the factors that encourage household interactions in sorting waste or recycling waste a priority. The purpose of this study is to build a comprehensive model and examine the relationship between perceptions of informal recycling, implementation e-waste management, behavioral intention, convenience of recycling and perceived behavioral control. The framework is the Theory of Planned Behavior (TPB). The implementation variable e-waste management is used to mediate the relationship between the two constructs. Respondents in this study were cellular phone users who had changed their phones. The number of respondents in this study totaled 165, using the purposive sampling technique. Data analysis techniques in this study used PLS-SEM with WarpPLS version 6.0. The findings show that: (1) perception of informal recycling, e-waste management, and behavioral intention have a significant positive effect; (2) management of e-waste, perception behavioral control and behavioral intention have a positive effect; and (3) the implementation of e-waste management, which causes the convenience of recycling, will increase the intensity of behavior, indicating the results are rejected.

• International Journal of Computer Science & Network Security
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• 제23권2호
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• pp.13-30
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• 2023

Since the COVID-19 vaccine became available, people have been sharing their opinions on social media about getting vaccinated, causing discussions of the vaccine to trend on Twitter alongside certain events, making the website a rich data source. This paper explores people's perceptions regarding the COVID-19 vaccine during certain events and how these events influenced public opinion about the vaccine. The data consisted of tweets sent during seven important events that were gathered within 14 days of the first announcement of each event. These data represent people's reactions to these events without including irrelevant tweets. The study targeted tweets sent in Arabic from users located in Saudi Arabia. The data were classified as positive, negative, or neutral in tone. Four classifiers were used-support vector machine (SVM), naïve Bayes (NB), logistic regression (LOGR), and random forest (RF)-in addition to a deep learning model using BiLSTM. The results showed that the SVM achieved the highest accuracy, at 91%. Overall perceptions about the COVID-19 vaccine were 54% negative, 36% neutral, and 10% positive.

• 휴양 및 경관연구
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• 제11권2호
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• pp.1-11
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• 2017

Recently, growing emphasis has been placed on the installation of rain gardens. However, previous rain garden studies have mainly focused on physicochemical effects such as rainfall runoff management and water quality improvement. Therefore, this study aims to investigate general perceptions of rain gardens and landscape aesthetics among rain garden visitors. To achieve this goal, a survey of 100 rain garden visitors was conducted, gathering information about their general perceptions of rain gardens and landscape aesthetics at three pre-selected rain garden locations. Results showed that rain garden recognition was limited to 34% of the respondents, indicating that most people were not aware of rain gardens and were unable to notice differences between rain gardens and traditional gardens. However, stronger support for rain gardens was observed among those who were aware of the concept, those who recognized that rain garden planting types are differentiated from traditional gardens, and those who rated positively the landscape aesthetic value of rain gardens. The main findings are expected to encourage further studies of quantitative indicators by conducting a correlation analysis between aesthetics and functionality of rain gardens.

• Journal of Information Technology Applications and Management
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• 제30권4호
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• pp.29-38
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• 2023

A single-learner model which integrates the user's positive and negative perceptions is proposed by augmenting counterfactual data to the interaction data between users and items, which are mainly used in collaborative filtering in this study. The proposed CausRec showed superior performance compared to the existing NCF model in terms of F1 value and AUC in experiments using three published datasets: MovieLens 100K, Amazon Gift Card, and Amazon Magazine. Compared to the existing NCF model, the F1 and AUC values of CausRec showed 1.2% and 2.6% performance improvement in MovieLens 100K data, and 2.2% and 10% improvement in Amazon Gift Card data, respectively. In particular, in experiments using Amazon Magazine data, F1 and AUC values were improved by 11.7% and 21.9%, respectively, showing a significant performance improvement effect. The performance of CausRec is improved because both positive and negative perceptions of the item were reflected in the recommendation at the same time. It is judged that the proposed method was able to improve the performance of the collaborative filtering because it can simultaneously alleviate the sparsity and imbalance problems of the interaction data.

• 한국환경과학회지
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• 제33권2호
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• pp.169-178
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• 2024

This study aimed to investigate the impact of pavement design changes on user perceptions, with the objective of enhancing safety in urban streetscape. A total of 72 participants were recruited, and the study focused on alleyways in areas with a high risk of crime. Employing the Semantic Differential (SD) methodology, an assessment was conducted to gauge participants' perceptions of three different pavement types (A-type, B-type, C-type) as well as the existing pavement. The results indicated that the C-type pavement, characterized by vibrant and harmonious color palettes and patterns, elicited the highest levels of perceived safety, comfort, and openness among users. This signifies that physical environmental improvements through color design can mitigate the feelings of insecurity and foster emotional stability. Therefore it is recommended to implement various color schemes and pattern designs to road surface for enhancing user safety in high-risk urban areas.

• 정보관리연구
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• 제41권3호
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• pp.85-104
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• 2010

이 연구는 NDL 정보광장의 이용자를 대상으로 이용행태와 서비스품질에 대한 조사를 실시하고, 동시에 직원들에게도 직원들이 예상하는 이용자의 이용행태 및 서비스품질에 대한 조사를 병행하여 실시하였다. 조사 결과 '디지털열람실'과 '이용안내서비스', '일반 인터넷 정보'를 가장 많이 이용하고 있으며, 가장 만족하는 것은 시설, 서비스, 콘텐츠로 조사되었다. 전반적인 만족도와 충성도, 직원, 정보자원 및 서비스, 시설 및 환경 등 각 부문별 서비스품질과 부문별 서비스품질에 대한 전반적인 만족도에서 직원이 예상하는 것보다 이용자의 인식이 더 높은 것으로 나타났다.

• 정보관리학회지
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• 제26권2호
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• pp.65-82
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• 2009

본 연구에서는 대학강좌에서 학생들의 소셜 북마킹 도구에 대한 인식 및 사용 행태를 분석하였다. 소셜 북마킹의 가치에 대한 최근 활발한 논의에도 불구하고 실제 이용자들이 어떻게 소셜 북마킹을 사용하는가에 대해서는 알려진 바가 많지 않다. 본 연구는 수업에서 학생들의 소셜 북마킹 도구인 딜리셔스 사용 행태와 인식을 바탕으로 소셜 북마킹이 제시하는 가치들이 실제에서 어떻게 나타나는지를 조사하였다. 학생들은 태깅, 기술, 네트워크의 기능을 소극적으로 사용하고 있었다. 이용자는 여전히 개인 정보 수집 및 관리의 도구로써 소셜 북마킹을 사용하고 있었으며, 소셜 북마킹 도구는 정보의 사용 및 재사용성은 향상시키고 있었으나 소셜 북마킹 도구가 지향하는 협력기반 정보공유, 협력기반 커뮤니티 구축 및 도메인 검색의 가치는 충분히 실현되지 못하고 있는 것으로 나타났다.

• 농촌계획
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• 제23권3호
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• pp.133-145
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• 2017

The purpose of this study is to assess residents' perception of the revitalization projects of the rural center and to evaluate their views of the projects' importance and their levels of satisfaction with how they have been carried out. In this study, we measured the residents' perceptions and preferences regarding these projects by using Importance-Performance Analysis (IPA). Results showed that residents' perceptions and satisfaction were the highest for the projects providing welfare facilities, even though this project has little relevance to the overall project goal. Residents were dissatisfied with construction projects such as the building of cultural facilities and urban parks, even while recognizing their importance. It is necessary to establish what problem the people perceive and to manage them appropriately. Next, the residents did not appreciate the community empowerment projects, nor did they evaluate the contents of the program positively. It can therefore be seen that the community empowerment projects have not been carried out well. Finally, the street landscape improvement project was not successfully implemented compared to other projects. The residents have negatively perceived the installation of facilities that they do not want, rarely use, or are poorly operated. this shows that the evaluation of residents is significant. They become the users of the revitalization project for the rural center. It is necessary to overcome problems such as project items chosen by professionals without local consultation and obvious design in the revitalization project of the local center. There is a need to ascertain the residents' opinion of each project and to encourage them to participate directly in the management operation.