• Journal of KIISE:Software and Applications
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• v.29 no.3
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• pp.145-155
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• 2002

In content-based image retrieval (CBIR), most conventional approaches assume a linear relationship between different features and require users themselves to assign the appropriate weights to each feature. However, the linear relationship assumed between the features is too restricted to accurately represent high-level concepts and the intricacies of human perception. In this paper, a neural network-based image retrieval (NNIR) model is proposed. It has been developed based on a human-computer interaction approach to CBIR using a radial basis function network (RBFN). By using the RBFN, this approach determines the nonlinear relationship between features and it allows the user to select an initial query image and search incrementally the target images via relevance feedback so that more accurate similarity comparison between images can be supported. The experiment was performed to calculate the level of recall and precision based on a database that contains 1,015 images and consists of 145 classes. The experimental results showed that the recall and level of the proposed approach were 93.45% and 80.61% respectively, which is superior than precision the existing approaches such as the linearly combining approach, the rank-based method, and the backpropagation algorithm-based method.

• Convergence Security Journal
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• v.13 no.6
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• pp.43-49
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• 2013

Web sites provide the first impression of an organization. For many organizations, web sites are crucial to ensure sales or to procure services within. When a person opens a web site, the first impression is probably made in a few seconds, and the user will either say or move on to the next site on the basis of many factors. One of the factors that may influence users to stay or go is the page aesthetics. Another reason may involve a user's judgment of the site's credibility. Our findings indicate that when the same content is presented using different levels of aesthetic treatment, the content with a higher aesthetic content credibility. Our study suggests that this effect is operational within the first few seconds in which a user views a web page. Given the same content, a higher aesthetic treatment will increase perceived credibility.

• The Journal of the Korea Contents Association
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• v.21 no.11
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• pp.112-120
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• 2021

Korea and Japan share the same view of a single nation state, but there was a difference in the government's COVID-19 emergency relief fund for foreigners. To this end, I analyzed the comments of Korean and Japanese users in YouTube videos related to COVID-19 disaster support funds for foreigners. As a result of the study, As a result, there are many opinions that Korea and Japan are generally sensitive to foreigners' tax payments, and that immigrants can receive national benefits and support like indigenous people if they fulfill their obligations. Next, it can be seen that Korea and Japan recognize each other in common. The difference is that Japan is sensitive to the same nationality, whereas Korea is more focused on tax and money than nationality.

• Journal of the Korean Society for information Management
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• v.39 no.3
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• pp.23-50
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• 2022

This article aims to improve the cultural program for the resident writers in libraries by identifying the current status of the resident writer support project, examining users' perceptions and preferences, and investigating librarians' perceptions of the program. The research methods included an investigation (survey) of the program operation status, user perception and preference surveys, and interviews with librarians about their perceptions of the program. Data were collected from libraries with the cultural program for resident writers between May and November 2021. Findings showed there were challenges in operating the library cultural program due to the lack of resident writers' quality, frequent changes in the program formats (online or offline), and library closures during the COVID-19 pandemic. For the program improvement, suggestions were made, including inviting good-quality resident writers and writers from other fields to the program, training resident writers, advertising the programs using online and offline media, training staff, and developing programs considering user ages and preferences and diversity in local communities.

• Smart Media Journal
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• v.12 no.8
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• pp.37-44
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• 2023

This study investigated the influence of travel-related content on the popular short-form platform TikTok in China on users' intentions to visit travel destinations and purchase travel products. Conducted in July 2023, amidst the rising consumption of short-form content through mobile devices due to the COVID-19 pandemic, the research surveyed 337 participants using an online survey platform in China. The findings revealed that the entertainment factor within TikTok's content did not significantly impact the perception of travel destinations, whereas informativeness and trustworthiness had positive effects. Moreover, expertise and interactivity also had positive effects. The study demonstrated that the image of travel destinations formed through short-form content on TikTok positively and significantly influenced visitors' intentions. These results provide valuable insights for crafting effective strategies in the tourism industry and marketing efforts.

• Journal of Korea Game Society
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• v.12 no.4
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• pp.45-51
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• 2012

Current virtual game interfaces cannot comprehend our metaphor, cannot reflect on our natural behavior aspect, cannot make us immerse into a game, and makes a barrier between virtual game space and our real behavior. It is very meaningful issue to use real objects tightly related to human-being's behaviors or reactions for interacting with game applications. Interactive Augmented Reality interfaces may augment users' perception of the real world by adding virtual information to it. We attempted an experiment on camera-based non-marker interface for online TCG application. This experiment uses real TCG cards which are recognized by our two phases Image KeyPoint Extraction/Matching Algorithm. These initiative experiments not only enlarge immersion and reality to the game, but also make real and virtual world seamless.

• Journal of Digital Contents Society
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• v.18 no.2
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• pp.283-291
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• 2017

Though new body movement based input system immerged in Virtual Reality (VR), VR still has a visually induced motion sickness (VIMS) problem to be accepted for users. VIMS are caused by changes in visually perceived movement that discord with vestibular system's sense of movement. Not only Head-body movements, but also hand gestures to make commands and torso movement can affect visual movement perception by enhancing immersion and its psychological product; presence. The question arises does whole body movement and hand gesture to make commands are more dominant to arousal, presence, and VIMS? To address this question, we conducted "2 (IV1; head-body movements only vs. whole body movements) * 1" between subject design experiment. The results showed that significant effect on whole body movements and arousal, marginally significant effect on presence. Eyewear usage was a moderator between hand gesture and presence relationship.

• Journal of Platform Technology
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• v.12 no.1
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• pp.85-90
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• 2024

The trend of seeking knowledge or information has been increasingly shifting towards the digital implementation on the web rather than relying on analog printed media such as books or publications. This shift is driven by the perception that using digital resources, particularly digital dictionaries, is more effective and time-saving compared to traditional paper dictionaries. Consequently, the construction of a semantic network for vocabulary has emerged as a significant issue for linguists, computational linguists, and natural language processing specialists. To address this, linguists have conducted numerous studies to find methods for structuring and classifying the meanings and concepts of vocabulary. In these studies, specialized terminology for constructing vocabulary semantic networks is as crucial as common language. However, in the process of finding and accumulating specialized terminology, there is still a manual step where individuals directly verify and extract specialized terms from paper documents or vast digital datasets. In this paper, we propose an automated program to extract the specialized terms that users desire from digital materials, aiming to compensate for errors in human-operated tasks and streamline the process.

• 한국HCI학회:학술대회논문집
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• 2007.02b
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• pp.518-525
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• 2007

컴퓨터와 사용자와의 효과적인 정서적 상호작용의 도구로서 의인화된 형태의 인터페이스 에이전트의 정서 표현에 대한 연구가 진행되어 왔다. 기존의 연구는 의인화된 인터페이스 에이전트가 어떤 정서를 표현하는가에 초점을 두고 있다. 그러나 인간과의 원활한 정서적 상호작용에 영향을 미치는 것은 어떤 정서인가의 문제만이 아니다. 인간은 타인의 상황과 정서에 공감하는 방식으로 정서를 표현하는 상대를 더 긍정적으로 평가한다. 또한 공감하는 방식의 정서 표현은 사회적으로 적용되는 성별 고정관념에 따라 여성적 속성으로 분류된다. 따라서 공감하는 방식의 정서 표현이라 하더라도 표현의 주체가 남성이냐 여성이냐에 따라 상대방의 인식이 달라질 수 있다. 본 연구는 인간간의 사회적 관계에서 일어나는 공감적인 정서 표현과 표현하는 주체의 성별의 효과가 인간-인터페이스 에이전트간의 상호작용에서도 나타나는지를 검증하기 위하여 참가자와 인터페이스 에이전트가 함께 게임에 참여하는 과제를 실시하고 인터페이스 에이전트의 성별, 참가자의 성별, 얼굴 표정과 말을 통한 정서 표현의 공감 여부(타인의 상황에 공감하는 정서 표현 - 자신의 상황에 대한 정서 표현), 정서 표현 여부(얼굴 표정과 말로 정서를 표현 - 정서가 배제된 무표정과 말)에 따라 인터페이스 에이전트에 대해 참가자가 지각한 배려, 호감, 신뢰, 지능, 지배, 순종이 어떻게 다른지를 측정하는 실험을 실시했다. 그 결과, 타인의 상황과 정서에 공감하는 방식으로 정서를 표현하는 에이전트의 배려, 지능, 순종적 성향을 높게 평가하는 것으로 나타났다. 남성 에이전트의 경우, 정서를 표현하거나 정서가 배제된 표현을 하는 조건에 관계없이 참가자가 지각하는 배려와 호감의 차이가 없었으나, 여성 에이전트의 경우 정서를 표현하는 조건에서 배려와 호감이 높은 것으로 평가되었다. 반대로 참가자가 인터페이스 에이전트에 대해 갖는 신뢰에 대해서 여성 에이전트의 경우, 정서를 표현하거나 정서가 배제된 표현을 하는 조건에 관계없이 참가자가 느끼는 신뢰의 차이가 없었으나 남성 에이전트의 경우, 정서가 배제된 표현을 하는 에이전트에게 더 높은 신뢰를 보였다. 또한 남성 참가자에 비해 여성 참가자가 에이전트의 배려, 호감, 지능, 순종을 높게 평가하는 경향을 보였다. 본 연구의 결과는 사용자와 인터페이스 에이전트 간의 원활한 정서적 상호작용을 위해서는 어떤 정서를 표현할 것인지 뿐만 아니라 누구에 대한 정서를 어떻게 표현하는지, 정서를 표현하는 에이전트가 남성인지 여성인지, 에이전트와 상호작용하는 사용자가 남성인지, 여성인지를 고려할 필요가 있음을 시사하고 있다.

• Knowledge Management Research
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• v.23 no.2
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• pp.61-82
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• 2022

Metaverse is a combination of Meta and Universe, which refers to a world in which users or avatars engage in social, economic, and cultural activities. This study attempted to compare the four worldviews proposed by the Acceleration Studies Foundation (ASF) based on the five evaluation factors of SPICE, which are factors for promoting customer experience. 227 samples were used in the analysis, and as a result, seamlessness was the highest in augmented reality, interoperability in lifelogging, presence in the mirror world, and concurrence in virtual reality. This study is meaningful in that it presents a model design plan according to the classification of the metaverse platform and the worldview, and presents detailed strategic directions to existing metaverse platform operators or new entrants.