• Title/Summary/Keyword: Information Perception

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A Study of Selecting Sequential Viewpoint and Examining the Effectiveness of Omni-directional Angle Image Information in Grasping the Characteristics of Landscape (경관 특성 파악에 있어서의 시퀀스적 시점장 선정과 전방위 화상정보의 유효성 검증에 관한 연구)

  • Kim, Heung Man;Lee, In Hee
    • KIEAE Journal
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    • v.9 no.2
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    • pp.81-90
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    • 2009
  • Relating to grasping sequential landscape characteristics in consideration of the behavioral characteristics of the subject experiencing visual perception, this study was made on the subject of main walking line section for visitors of three treasures of Buddhist temples. Especially, as a method of obtaining data for grasping sequential visual perception landscape, the researcher employed [momentum sequential viewpoint setup] according to [the interval of pointers arbitrarily] and fisheye-lens-camera photography using the obtained omni-directional angle visual perception information. As a result, in terms of viewpoint selection, factors like approach road form, change in circulation axis, change in the ground surface level, appearance of objects, etc. were verified to make effect, and among these, approach road form and circulation axis change turned out to be the greatest influences. In addition, as a result of reviewing the effectiveness via the subjects, for the sake of qualitative evaluation of landscape components using the VR picture image obtained in the process of acquiring omni-directional angle visual perception information, a positive result over certain values was earned in terms of panoramic vision, scene reproduction, three-dimensional perspective, etc. This convinces us of the possibility to activate the qualitative evaluation of omni-directional angle picture information and the study of landscape through it henceforth.

A Study of Practical Instructors' Recognition on the Field Practice Program in Library and Information Science (문헌정보학 전공 현장실습에 대한 실습지도자의 인식 연구)

  • Cha, Sung-Jong
    • Journal of the Korean Society for Library and Information Science
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    • v.51 no.2
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    • pp.133-156
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    • 2017
  • This study was performed to find out how to improve the usefulness and effectiveness of the field practice program in Library and Information Science by diagnosing the practical instructor's perception of the overall field practice in the Library and Information Science. To achieve this goal, we conducted a research on the current situation and a measurement in perception of the field practice program through a survey of practical instructors at practical training institutions. We, then, analyzed the factors affecting the perception and examined the relationship between the effects. As a result of investigating the factors affecting the perception of field practice, 'operational accountability for the field practice program' was found to be a significant factor among other factors such as the general characteristics of the practical instructors, the characteristics of library related work and the field practice status of the practical training institutions. And factors of 'practice environment' and 'practice instruction method' have been identified to have a significant impact as a result of analyzing how the six factors constituting the perception of field practice effect on the overall perception of field practice of the practical instructors.

A CPU-GPU Hybrid System of Environment Perception and 3D Terrain Reconstruction for Unmanned Ground Vehicle

  • Song, Wei;Zou, Shuanghui;Tian, Yifei;Sun, Su;Fong, Simon;Cho, Kyungeun;Qiu, Lvyang
    • Journal of Information Processing Systems
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    • v.14 no.6
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    • pp.1445-1456
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    • 2018
  • Environment perception and three-dimensional (3D) reconstruction tasks are used to provide unmanned ground vehicle (UGV) with driving awareness interfaces. The speed of obstacle segmentation and surrounding terrain reconstruction crucially influences decision making in UGVs. To increase the processing speed of environment information analysis, we develop a CPU-GPU hybrid system of automatic environment perception and 3D terrain reconstruction based on the integration of multiple sensors. The system consists of three functional modules, namely, multi-sensor data collection and pre-processing, environment perception, and 3D reconstruction. To integrate individual datasets collected from different sensors, the pre-processing function registers the sensed LiDAR (light detection and ranging) point clouds, video sequences, and motion information into a global terrain model after filtering redundant and noise data according to the redundancy removal principle. In the environment perception module, the registered discrete points are clustered into ground surface and individual objects by using a ground segmentation method and a connected component labeling algorithm. The estimated ground surface and non-ground objects indicate the terrain to be traversed and obstacles in the environment, thus creating driving awareness. The 3D reconstruction module calibrates the projection matrix between the mounted LiDAR and cameras to map the local point clouds onto the captured video images. Texture meshes and color particle models are used to reconstruct the ground surface and objects of the 3D terrain model, respectively. To accelerate the proposed system, we apply the GPU parallel computation method to implement the applied computer graphics and image processing algorithms in parallel.

Antecedents and Consequences of Supplier's fairness perception (중소공급업체 공정성 지각의 선행요인과 결과요인)

  • Kim, Do-Heon;Kim, Sang-Deok
    • Journal of Distribution Science
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    • v.9 no.2
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    • pp.61-72
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    • 2011
  • The object of this research is to examine the factors leading to intercompany win-win by finding the antecedents and consequences that affect a supplier's fairness perception. We assume that the antecedent factors of a supplier's fairness perception are vertical coordination, cooperation support, information sharing, and legalistic plea. We assume that the consequential factors of a supplier's fairness perception are supply chain dependence and supply chain flexibility. The object industry is an electronic parts manufacturing company. We tested our model by using the SPSS 17.0 and the LISREL 8.5. For measurement validation, we verified by using a confirmatory factor analysis and a reliability analysis. For hypothesis analysis, we did a path analysis with the LISREL 8.5. By checking the modification index and expecting parameter changes, we modified the model. First, the buyer's vertical coordination had a positive effect on the supplier's distributive fairness perception and procedural fairness perception. Second, the buyer's cooperation support had no effect on the supplier's distributive fairness perception and procedural fairness perception: we suppose that the buyer's requests were burdensome, although they cooperated with the supplier. Third, the buyer's information sharing had a positive effect on distributive fairness perception but had no direct effect on procedural fairness perception. Fourth, the buyer's legalistic plea had a negative effect on the supplier's distributive fairness perception. and a negative effect on the supplier's procedural fairness perception at a 0.1 significance level. Fifth, although procedural fairness perception had no direct effect on supply chain dependence, fairness perception had an effect on supply chain dependence and supply chain flexibility both directly and indirectly.

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Convergence Study on Perception and Performance of Patient Private Information Protection in Nursing Students with Clinical Practice (임상실습 경험 간호학생의 환자 개인정보보호 인식과 실천에 대한 융합적 연구)

  • Lee, Hyun-Jung
    • The Journal of the Convergence on Culture Technology
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    • v.4 no.2
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    • pp.53-60
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    • 2018
  • The purpose of this study was to research the perception and performance of patient private information protection(PPIP) of 76 nursing students with clinical practice of 18 weeks. The mean score of perception on PPIP (4.62 points/5 points) was significantly higher than the performance(3.84 points/5 points). There was a statistically significant positive correlation between perception and performance. In the future, it is necessary to study the interdisciplinary convergence study to understand the factors affecting the perception and performance of PPIP of nursing students and to Develope and apply of PPIP education program for nursing students. Also it is necessary to seek joint plans between medical institutions and universities to improve the perception and performance of PPIP.

The Influence of User Experience Elements of Digital Music Access Platform on User Loyalty: Mediation Effect of Usefulness Perception, Epidemic Perception

  • Zhang, Weiwei
    • Journal of the Korea Society of Computer and Information
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    • v.24 no.7
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    • pp.45-52
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    • 2019
  • With the popularity of mobile Internet and smart phones, the domestic digital music access platform has entered a period of rapid development. Existing studies in the academic circle have shown that experience has a positive impact on user perception and loyalty. However, the research on the relationship between brand loyalty, user perception and user experience of Internet products has not received much attention. Starting from the brand loyalty theory and user experience theory, this paper explores the mechanism of user experience, user perception and brand loyalty of digital music access platform. Based on the development status of digital music access platform in China, the purpose is to explore how the user experience of the mainstream digital music access platform can affect Usefulness Perception, Epidemic Perception. And to explore how the Usefulness Perception, Epidemic Perception can affect users' brand loyalty. also further explore the role of users' perception in this process to understand the relationship between brand and user experience. In practical operations, 398 formal questionnaires were issued online to collect first-hand data, and reliability analysis, factor analysis, correlation analysis and hypothesis analysis were carried out successively on the data in the later stage. Through research, it is found that the user experience of digital music access platform has a partial significant impact on the perception and loyalty of applications. The visual presentation and emotional feelings of digital music access platform are positively correlated with the perceived usefulness of applications. The visual presentation and emotional feelings of digital music access platform are positively correlated with the perceived popularity of applications. The e perceived usefulness and perceived popularity of the digital music access platform are positively correlated with the loyalty of the application. Through this research, it has certain guiding significance to the promotion of digital music access platform's brand loyalty degree.

A Study on the Risk Perception and Information Seeking for the Purchase of Clothing (의복구매시 위험지각과 정보탐색에 대한 연구)

  • Park, Hye-Sun
    • The Journal of Natural Sciences
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    • v.10 no.1
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    • pp.111-122
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    • 1998
  • This study was performed to investigate the type perceived risk of clothing consumers and the types of information seeking, the relationship between perceived risk and information seeking, and the defferences according to the demographic variables. The surveyed data from 376 college students were analized using Person's correlation, factor analysis, t-test, and ANOVA. The risk perception of clothing consumers was classified into five types: economic and performance risk, loss of time risk, social risk, and loss of fashionability risk. The information seeking was classified into four types: advertisement, observation in shops, information in memory, and opinions of neighbors. The type of risk perception and the types of information seeking were correlated positively and were different according to expenditure on clothing.

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Purchase Behavior and Risk Perception in Cosmetics Purchases at Online Shopping Malls (인터넷 쇼핑몰에서 화장품 구매시 위험지각에 따른 구매행동에 관한 연구)

  • Kim, Ju-Hee;Ha, Jong-Kyung
    • Korean Journal of Human Ecology
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    • v.19 no.6
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    • pp.1003-1012
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    • 2010
  • This study analyzed purchase behavior according to the risk perceptions when customers buy Cosmetics at Internet Shopping Malls. Participants were 232 women in their 20s and 30s with more than one buying experience at an internet fashion shopping mall. Data were analyzed using factor analysis, Cronbach's analysis, cluster analysis, one-way ANOVA and a Duncan test. Results were as follows. Firstly, five factors of risk perception were identified: These were the payment risk, service risk, quality risk, price risk and experience risk. Secondly, customers of internet shopping malls could be categorized into three groups: A low risk perception group, a payment risk perception group and a high risk perception group. Factor analysis showed significant differences between these groups( p<.001). Thirdly, purchase behavior based on the purchase standards, purchase items, information searching were investigated according to the different groups of risk perception of internet shopping malls and results again significant differences between groups (p<.05, p<.001).

A Study on Age-related Difference in Risk Perception of Breast Cancer and Influencing Predictors (연령대별 유방암 위험지각과 이에 영향을 미치는 요인 비교)

  • Lee, Dong-Suk;Son, Haeng-Mi
    • Korean Journal of Adult Nursing
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    • v.16 no.2
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    • pp.327-336
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    • 2004
  • Purpose: The aim of this study was to identify the age-related differences in risk perception of breast cancer and the age-related differences in predictors of risk perception. Method: The subjects were 553 women aged from 15 to 64 who lived in Seoul, Kwang-Ju, Jeon-nam province. Data was collected by self-reported questionnaire surveys using convenience sampling. The collected data was analyzed using descriptive statistics, F-test with Scheffe test, and stepwise multiple regression with SPSS-Win 10.0 version. Result: Risk perception of breast cancer was different by age group. Especially, risk perception in teenagers and the 50~64 years group was lower than the other groups. Additionally, general fear of breast cancer, information seeking style, experience, and knowledge were different between the age groups. The results of multiple regression analyses predicting risk perception indicated the following significant predictors: general fear and knowledge in all the subjects, general fear and experience in the 20~29 years group, and general fear in the other age groups. Conclusion: These results suggested that the construction of educational messages for breast cancer prevention and early detection should be designed differently for each age group.

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