• KIPS Transactions on Software and Data Engineering
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• v.6 no.7
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• pp.371-378
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• 2017

Recently, with the spread of smart device and the introduction of web services, the data is rapidly increasing online, and it is utilized in various fields. In particular, the emergence of social media in the big data field has led to a rapid increase in the amount of unstructured data. In order to extract meaningful information from such unstructured data, interest in big data technology has increased in various fields. Big data is becoming a key resource in many areas. Big data's prospects for the future are positive, but concerns about data breaches and privacy are constantly being addressed. On this subject of big data, where positive and negative views coexist, the research of analyzing people's opinions currently lack. In this study, we compared the changes in peoples perception on big data based on unstructured data collected from the social media using a text mining. As a results, yearly keywords for domestic big data, declining positive opinions, and increasing negative opinions were observed. Based on these results, we could predict the flow of domestic big data.

• The Journal of the Korea Contents Association
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• v.14 no.1
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• pp.250-265
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• 2014

The purpose of the phenomenological study was to explore the sense of pressure shown from the family adjustment experience according to mothers-in-law's perception and to enrich our understanding about multicultural families. In order to accomplish the purpose of research, 5 mothers-in-law with married immigrant women participated. Data were collected through in-depth interview. In addition, the data were analyzed by a Colaizzi's phenomenological analysis. The findings showed that the meaning of family adjustment experience in mothers-in-law with married immigrant women were identified as 31 themes and 7 categories. The 7 categories consisted of "The sense of pressure of son's marriage", "The sense of pressure of an unsatisfactory daughter-in-law", "The sense of pressure of unfair treatment by a daughter-in-law", "The sense of pressure of living with concerned son and his wife", "The sense of pressure of having a foreign daughter-in-law", "The sense of pressure of dependnet daughter-in-law's parents", "The sense of pressure of the future". Based on the findings, we discussed the meaning of family adjustment experience in mothers-in-law with married immigrant women. And lastly, this results made suggestions for the social welfare policies and practices for them and their families.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.36 no.1
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• pp.105-114
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• 2016

With approximately 20 million transportation card data entries of the metropolitan districts being generated per day, application of the data to management and policy interventions is becoming an issue of interest. The research herein attempts a model of the possibility of dynamic demand change predictions and its purpose is thereby to construct a Dynamic Passengers Trip Assignment Model. The model and algorithm created are targeted at city rail lines operated by seven different transport facilities with the exclusion of travel by bus, as passenger movements by this mode can be minutely disaggregated through card tagging. The model created has been constructed in continuous time as is fitting to the big data characteristic of transport card data, while passenger path choice behavior is effectively represented using a perception parameter as a function of increasing number of transfers. Running the model on 800 pairs of metropolitan city rail data has proven its capability in determining dynamic demand at any moment in time, in line with the typical advantages expected of a continuous time-based model. Comparison against data measured by the eye of existing rail operating facilities to assess changes in congestion intensity shows that the model closely approximates the values and trends of the existing data with high levels of confidence. Future research efforts should be directed toward continued examination into construction of an integrated bus-city rail system model.

• Journal of Korean society of Dental Hygiene
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• v.10 no.2
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• pp.297-310
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• 2010

Objectives : The purpose of this study was to verify the impact of the empowerment of dental personnels as one of variables affecting the performance of dental institutions and to seek ways of boosting their organizational productivity. Methods : The subjects in this study were dental personnels who worked in dental institutions. After three investigators were trained, a pilot survey was conducted from October 20 to November 20, 2009, and the questionnaire used in the pilot survey was finalized. The collected data were analyzed with a SPSS(Statistical Package for the Social Science) WIN 12.0 program. The findings of the study were as follows: Results: 1. The dental personnels investigated got 3.98 in meaningfulness, one of the empowerment factors. They found a meaning in their job when they performed it. 2. The dental personnels who were older were more excellent in self- determination and influence, and age made a significant difference to their empowerment. 3. The dental personnels who were better educated were more superior in terms of empowerment, and academic credential made a significant difference to their empowerment factors was statistically. 4. The dental personnels whose yearly salary was larger were more which were the factors of empowerment of each factor was statistically significant. 5. Dental health agency workers less than three years accounted for most of 152 people were working longer duration of empowerment as a whole was that each of the factor scores. Empowerment of each factor was statistically significant. 6. The dental hygienists made up the largest group among the dental institution employees, and the kind of occupation made a significant difference to meaningfulness, competency and influence, which were the factors of empowerment. 7. The greatest group of the dental personnels worked in dental clinics, and the dental hospital employees surpassed the dental clinic employees in competency, self-determination and influence. There was a significant difference in the influence factor according to the type of dental institutions. Conclusions : Thus, the dental personnels were more aware of the meaningfulness factor when their perception of the job-related empowerment was checked, and it indicated that most of them attached importance to meaningfulness during their job performance. But just employees who worked in dental institutions located in particular regions were examined, the findings might not be generalizable. In the future, more extensive research should be implemented, and the sorts of programs that could stir up empowerment among dental institution employees or bolster organizational empowerment should be developed.

• The Journal of the Korea Contents Association
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• v.17 no.4
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• pp.200-208
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• 2017

Despite a rapid market growth in VR, cyber sickness has become the most serious problem in terms of user experience. The aim of this study is to verify whether there are differences in user's perception of cyber sickness by the point-of-view and the movement in VR contents. An experimental testing of game playing with VR headset was conducted on the effects of two conditions: first-person and third-person views in the point-of-view condition, and yaw - pitch rotations in the head movement condition. The results showed that cyber sickness worsened in the first-person point-of-view and in the yaw rotation movement. Point-of-view and movement had main effects on the cyber sickness, but an interaction effect between point-of-view and movement was not found. Based on the findings, along with reducing VR sickness, we proposed practical implications for VR contents planning for building balanced VR user experience. Positive VR experience can be reinforced through visual design, multi-modal interface design, and experience marketing for the optimal level of contents immersion. A future research was suggested on the roll rotation for diverse content genre development.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.2
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• pp.268-279
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• 2020

This study was undertaken to identify nursing professionalism perceptions among nursing students who had completed a semester of simulation-based education, and to provide the basis for presenting direction of the simulation curriculum that helps in the emergence of a positive nursing professional in future. Data obtained from focus group interviews of study participants determined 17 semantic categories and 6 themes through the process of identifying, comparing, and categorizing meaningful concepts. The perception of nursing students regarding the profession after simulation-based education include 'realization of professionalism', 'ethics and emotions as professional human subjects', 'cultivation of communication skills', 'integrative thinking for problem solving', and 'foundation', and also the importance of a 'foundational knowledge body' and 'reflection of self-capacity'. The results of this study reflect on 5 intuitional areas of a nursing professional: professional self-concept, social awareness, nursing expertise, nursing room role, and independence of nursing. The results of this study indicate that in order to enable nursing students to experience nursing professional intuition through simulation-based hands-on training, it is necessary to actively revise and apply courses for the development of a positive nursing professional intuition through simulation education.

• The Journal of the Korea Contents Association
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• v.8 no.3
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• pp.86-96
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• 2008

General development basis of letter system is recognized by formative value in terms of its function and structure. principle of clustered writing is the most significant feature of Hangeul typography as considered that it is based on function and formativeness. Thus, not only by changes with its form but also by its characteristic syllable combination, space structure is made as consonants and vowels are combined in single letter, then the combination develop into word, sentence, paragraph to make second, third space structure character. This character has significant impact on readability that is core function of typography. With this property, space structure character is regarded as very important component of Hangeul typography. First, space structure character of Hangeul typography is reviewed by relating it to visual perception of gestalt psychology and compared square-framed letter and framed latter By applying square-framed letter and framed latter in same sentence, legibility and readability were studied. Researcher has found that space structure character of Hangeul typography has significant impact on its function, and in terms of future design, it is very critical not only for design but also for communication environment as space structure formativeness of Hangeul typography interact with communication that is basic concept.

• Journal of Korean Tunnelling and Underground Space Association
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• v.20 no.2
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• pp.423-432
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• 2018

Since the Daegu subway fire accident, people's perception of safety has increased, and all materials inside the train have been changed to incombustible materials. However, there is still a lack of development of fire extinguishing systems. Train components are mostly made of steel plates, and therefore it is very difficult to extinguish the train fire by using general fire extinguishing equipment. In this regard, this paper investigated rapid and easy methods of extinguishing the train fire by using compressed air foam systems through full-scale fire tests. To extinguish the fire of train at rescue station, window breakers were used to quickly destroy the train windows, and the compressed air foam system was inserted inside the train. As a result, the train windows were destroyed in 5 seconds, and the 11.88-MW fire was put out in 30 seconds by the compressed air foam discharged from the compressed air foam system inserted inside the train. For the future work, there is a need for further experimental studies to prevent the spread of fire and protect tunnel structures with the use of compressed air foam systems.

• Cartoon and Animation Studies
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• s.51
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• pp.35-58
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• 2018

The purpose of this study is to suggest the plans of educationally using animation literacy on the basis of a media literacy approach. For this study, animation literacy class as a liberal arts was conducted, which students studying animation at university attended. In order to explore the plans of using animation literacy, students' perception of using animation literacy was examined after completing animation literacy class. Also, in-depth interview with experts participating in animation literacy class was performed. Results showed that all students taking animation literacy class acknowledged the educational value of animation literacy and could think over cultural and social implications of animation through class. Also, they could have various perspectives as an acceptor and analytical mind-set as a creator. Findings from in-depth interview with specialists indicated that education on animation literacy was indispensably necessary, and systemicity and objective criteria needed to be established. On top of that, experts proposed the way that through expansion of topics, and diverse animation works, students voluntarily and actively could participate in class. In addition, it suggests that because of participants in this study who were students majoring in animation, class to foster a perspective and ability as not only a viewer and an acceptor but also a producer and a creator should be added. It is expected that this study will be used as fundamental data for education on animation literacy, and future studies on education of animation literacy will be continuously conducted.

• The Journal of the Korea Contents Association
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• v.18 no.9
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• pp.648-660
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• 2018

The purpose of this study is to find out the perception of the satisfaction of the undergraduate curriculum in the college undergraduate degree. The purpose of this study is to classify the structure of satisfaction of major curriculum, and to describe the characteristics of types of curriculum satisfaction in the major curriculum. The results of the type analysis are as follows. The first type (N = 5): In-depth major curriculum teaching method satisfaction type, the second type (N = 4): Practical learning class satisfaction type, the third type (N = 3) 4 types (N = 3): Employment Establishment centered class satisfaction type, 5th type (N = 3): Theory centered class satisfaction type, 6th type (N = 2) It is analyzed that there are various features for each type. In the future, we will revise and refine it with detailed Q methodological questions and analytical techniques, and analyze various opinions of respondents more concrete and objectively.