• The Journal of the Korea institute of electronic communication sciences
• /
• v.6 no.1
• /
• pp.68-76
• /
• 2011

Today the new social and cultural area is generated by development of digital media and internet. Especially UCC is the new cultural area of this time, UCC is applicated and delivered the individual image and contents by digital equipment. This research tried to study the communication esthetics with the relation of a user. And it study about the function of the media communication, the cultural possibility, the value by art of UCC. From now I have not to see the UCC media technology the level of technical limit and we see it variously the level of cultural and artistic. I study the meaning of them and try the analysis. And I will study about the communication between the individual and the community. And I will study also the short aspect and the synthesize aspect of digital network, and how possible the realization of free culture. And I will analyse the meaning and system of UCC contents that product and copy today and then I will suggest that contribute the UCC culture development.

• Journal of the Institute of Electronics Engineers of Korea SP
• /
• v.41 no.2
• /
• pp.41-50
• /
• 2004

Since the MPEG-4 visual standard enables content-based functionalities, it is necessary to extract video objects from video sequences. Segmentation algorithms can largely be classified into two different categories: automatic segmentation and user-assisted segmentation. In this paper, we propose a new user-assisted image segmentation method based on the active contour. If we define a shape space as a set of all possible variations from the initial curve and we assume that the shape space is linear, it can be decomposed into the column space and the left null space of the shape matrix. In the proposed method, the shape space vector in the column space describes changes from the initial curve to the imaginary feature curve, and a dynamic graph search algorithm describes the detailed shape of the object in the left null space. Since we employ the shape matrix and the SUSAN operator to outline object boundaries, the proposed algorithm can ignore unwanted feature points generated by low-level image processing operations and is, therefore, applicable to images of complex background. We can also compensate for limitations of the shape matrix with a dynamic graph search algorithm.

• International Journal of Computer Science & Network Security
• /
• v.21 no.11
• /
• pp.199-206
• /
• 2021

Rhetorical relations between two text fragments are essential information and support natural language processing applications such as Question - Answering (QA) system and automatic text summarization to produce an effective outcome. Question - Answering (QA) system facilitates users to retrieve a meaningful response. There is a demand for rhetorical relation based datasets to develop such a system to interpret and respond to user requests. There are a limited number of datasets for developing an Arabic QA system. Thus, there is a lack of an effective QA system in the Arabic language. Recent research works reveal that unsupervised learning can support the QA system to reply to users queries. In this study, researchers intend to develop a rhetorical relation based dataset for implementing unsupervised learning applications. A web crawler is developed to crawl Arabic content from the web. A discourse-annotated corpus is generated using the rhetorical structural theory. A Naïve Bayes based QA system is developed to evaluate the performance of datasets. The outcome shows that the performance of the QA system is improved with proposed dataset and able to answer user queries with an appropriate response. In addition, the results on fine-grained and coarse-grained relations reveal that the dataset is highly reliable.

• Journal of the Korea Computer Graphics Society
• /
• v.28 no.3
• /
• pp.125-134
• /
• 2022

This paper implements an AR manual for a vehicle that can be used even in the vehicle interior space where it is difficult to apply the augmentation method of AR content, which is mainly used, and applies a deep learning model to improve the augmentation matching between real space and virtual objects. Through deep learning, the logo of the steering wheel is recognized regardless of the position, angle, and inclination, and 3D interior space coordinates are generated based on this, and the virtual button is precisely augmented on the actual vehicle parts. Based on the same learning model, the function to recognize the main warning light symbols of the vehicle is also implemented to increase the functionality and usability as an AR manual for vehicles.

• Journal of the Korean Society for information Management
• /
• v.41 no.1
• /
• pp.85-105
• /
• 2024

Augmented Reality (AR) is a mix of the real world that is enhanced by virtual objects from computer-generated information. AR is currently used in a variety of information systems and library services. AR technologies are also being developed for today's children, who are digital natives and are exposed to various technologies even earlier. To assist librarians who need to accurately understand users' information needs and perceptions of the technology being used in their libraries, we conducted a study of AR perceptions among children. We conducted two online co-design sessions using "Would you rather?", a co-design technique that facilitates research into children's opinions. Through the co-design sessions, we found that children were psychologically wary about AR technology due to a lack of trust in the technology, and realism had a significant impact on these judgments. We also identified that children considered AR technology environments as an extension of the real world. Their real-world values directly influenced their perceptions of AR. This research provides insights into the wariness that libraries need to be aware of when developing AR content for children in the future, and how libraries can use AR as an educational tool.

• Journal of the Korean Society for information Management
• /
• v.27 no.3
• /
• pp.67-82
• /
• 2010

In comparison to the services provided by the typical information systems, the historical records from the period before the modern times require additional information services to reflect the format and content oriented peculiarities of the data. The additional services also need to be considered in light of the users' information needs. For this study, a series of literature reviews was conducted to present the specific analysis criteria for the historical information services. Based on these criteria, the domestic and foreign historical information service provision and use status was investigated. In addition, users' information needs were identified and user-based historical information service improvement suggestions were generated.

• Proceedings of the Korea Society for Industrial Systems Conference
• /
• 2008.10b
• /
• pp.530-536
• /
• 2008

User Generated Content(이하 UGC)는 웹사이트 이용자에 의해 생산된 콘텐츠를 일컫는 말로, 미디어 조직에 속하지 않은 일반인들의 비직업적 활동의 산물로서 웹 공간에 공표한 콘텐츠를 의미한다. 본 연구는 UGC가 활성화되기 위해서 풀어야 할 과제를 도출하고, 도출된 요인을 바탕으로 개선된 형태의 UGC 웹 서비스 품질(Web Service Quality)의 최적화된 모형을 제시하고자 한다. UGC 웹서비스 품질은 정보성, 디자인, 통신환경, 커뮤니티, 실재감, 보안성 등의 6가지 요인으로 나누어 고객 만족도와 고객 충성도에 미치는 영향을 조사하였고, 고객 만족도와 고객 충성도 간에 매개 변수로서 관여도를 두어 고객 만족도와 고객 충성도간의 영향 요인을 온라인상 UGC 사용 및 이용 경험이 있는 사용자 총 355명을 대상으로 설문조사를 통해 연구하였다. 연구 결과, UGC 웹서비스 품질 요인으로 정보성, 디자인, 통신환경, 커뮤니티, 실재감, 보안성은 모두 고객 만족도에 직접적인 영향을 미치는 것으로 밝혀졌다. 고객 만족도는 고객 충성도에 유의한 영향을 미치고 있었으며, 고객 만족도 또한 관여도에 영향을 미친다. 매개 변수로서 관여도는 고객 충성도에 유의한 영향을 미치고 있는 것으로 나타났다.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.6 no.3
• /
• pp.371-379
• /
• 2011

In this paper, we propose a development methodology of interactive stereoscopic image display system. In our case, we consider a multiple touch recognition technique as the interaction method. That's because we want to guarantee multiple user access and interaction to the content without any restriction. In this case, however, some restrictions are occurred on account of the distance between display and participants. For this reason, this paper propose an invisible interaction surfaces which are generated in the air. This surface is utilized as interaction medium instead of the display wall. We also present an effective way to generate and edit interactive stereoscopic images based on Game Engine.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• v.15 no.11
• /
• pp.3892-3912
• /
• 2021

The recent rapid growth of mobile network traffic places multi-access edge computing in an important position to reduce network load and improve network capacity and service quality. Contrasting with traditional mobile cloud computing, multi-access edge computing includes a base station cooperative cache layer and user cooperative cache layer. Selecting the most appropriate cache content according to actual needs and determining the most appropriate location to optimize the cache performance have emerged as serious issues in multi-access edge computing that must be solved urgently. For this reason, a cache placement algorithm based on comprehensive utility in big data multi-access edge computing (CPBCU) is proposed in this work. Firstly, the cache value generated by cache placement is calculated using the cache capacity, data popularity, and node replacement rate. Secondly, the cache placement problem is then modeled according to the cache value, data object acquisition, and replacement cost. The cache placement model is then transformed into a combinatorial optimization problem and the cache objects are placed on the appropriate data nodes using tabu search algorithm. Finally, to verify the feasibility and effectiveness of the algorithm, a multi-access edge computing experimental environment is built. Experimental results show that CPBCU provides a significant improvement in cache service rate, data response time, and replacement number compared with other cache placement algorithms.

• The Journal of Industrial Distribution & Business
• /
• v.14 no.10
• /
• pp.11-22
• /
• 2023

Purpose: This study aims to investigate how brand-related user-generated content (UGC) influences consumers' brand attitude and behavioral intention in the context of the Metaverse, and the mediating role of virtual brand experience, perceived information usefulness, perceived interactivity, and attitude toward advertising. Research design, data and methodology: The study was conducted using a survey with 239 questionnaires from frequent social media users in China and hypothesis testing through AMOS 26.0 structural equation modeling. Results: The findings suggest that (1) brand-related UGC positively influences brand attitude and behavioral intention through virtual brand experience, perceived information usefulness, perceived interactivity, and attitude toward advertising. (2) The study identified the fully-mediated effects of virtual brand experience, perceived information usefulness, perceived interactivity, and attitude toward advertising in the impact of brand-related UGC on brand attitude and behavioral intention. (3) The mediating pathway with the most significant impact on behavioral intention was the virtual brand experience and attitude toward the advertising, followed by the effect of the virtual brand experience, perceived information usefulness, and perceived interactivity on brand attitude. Conclusions: This study presents UGC as a new type of digital promotion that can positively impact the effectiveness of brand advertising in the Metaverse.