• Journal of the HCI Society of Korea
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• v.1 no.2
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• pp.35-42
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• 2006

The importance of interface agent as user interface increases in the ubiquitous computing environment. It is essential that an interface agent can develop social relationship with users. We propose that self-disclosure, a major factor to form and maintain human relationship, can be useful to achieve this goal. This study examined the effects of the degree of a computer agent's self-disclosure on the users' social responses. The experiment was conducted in a 2(intimacy of agent's disclosure: high vs. low) by 2(amount of agent's disclosure: high vs. low) between-group design. The results show that: 1) reciprocity of self-disclosure was found in both sub-dimensions (intimacy and amount) of self-disclosure; 2) in case that participants received highly intimate self-disclosure from the agent, social attraction, trustworthiness and expectation of mutual influence toward agent were lower than when the agent's disclosure was less intimate. These findings suggest that the intimacy of agent's self-disclosure can affect on gathering user information and human-agent relationship formation separately. While agent's highly intimate disclosure can be useful to gather user information, agent's appropriate disclosure can be useful to form positive user-agent relationship.

• Journal of Korea Society of Industrial Information Systems
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• v.14 no.2
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• pp.23-31
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• 2009

Since 9.11 terrorist attacks against the USA, the new paradigm for "supply chain security" has been established. And at the same time a lot of researches are being made on supply chain security by many foreign companies or research institutes. However, domestically the terms "supply chain security" themselves are not yet familiar, and the paradigm of security are not being used in the logistics, while little researches are being made on them But recently along with development of "ConTracer," a supply chain security technology, which is to be used as the equipment for container cargo transportation safety based on RF1D technology, related researches have begun to be activated. The key issues for the development of equipment for container transportation safety are to obtain both a high recognition rate and enough recognition distance. To this end, this study has tested the ConTracer (433 MHz type and 2.4 GHz type) by using Taguchi Method. According to our test results, in the case of 433 MHz type, it is a little more effective that the reader faces to the front-right side, and in the case of 2.4 GHz, reader direction does not make difference in the view of sensitivity. The test also has proved that it is better that antenna location, as expected, is to be installed on the outside for both types alike.

• Korean Journal of Cognitive Science
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• v.20 no.1
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• pp.51-77
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• 2009

Using a modified Posner's cue-target paradigm, we investigated whether negative cues attract more attention than neutral cues in anxious people. Previous studies used commonly an unbalanced proportion of valid and invalid trials(75% vs. 25% respectively). But in the present study, an equivalent proportion of valid and invalids trials was used for measuring detection speed of cues without participant's expectancy caused by the unbalanced proportion. Emotional words(Experiment 1) and facial expressions(Experiment 2) were used as cues for target locations. The result of Experiment 1 and 2 showed that threatening cues facilitated target detection in valid trials and interfered with it in invalid trials in anxious participants and a, reverse response patterns were found in non-anxious participants. This indicates that threatening cues attract more attention to the cued location in anxious people and in contrast, non-anxious people avoid threatening stimuli. In Experiment 3, we investigated the difference of validity effect across anxiety levels. The results showed that anxious participants gave less attention to cued location when the cues were non-informative whereas non-anxious participants gave more attention to cued locations in the same condition. We discussed two kinds of cognitive bias caused by anxiety levels: attentional bias and proportion related bias.

• Journal of Technology Innovation
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• v.22 no.2
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• pp.51-75
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• 2014

Sustainability has already become one of the most important innovation policy agendas in many countries. Korea has tried to emulate this global trend in various forms, unfortunately with little success. A very strong tradition of centralized administration in Korea has meant that local communities and municipalities have remained more or less passive in tackling their own sustainability issues and problems. In recent years, with the impetus of huge democratization attempts in Korea since the late 1980s, there have been some local attempts to remedy these imbalances since the early 2000s. A series of local experiments to try and test green alternatives against the very hostile environment have been implemented, with varying degrees of success. This study analyzed cases of transition experiment to sustainable socio-technical system such as MUSIC project, Low Carbon Green Village and Citizens' Sunlight Power Stations. To draw politic meanings for sustainable socio-technical system, these content, process of conversion and feature were examined.

• Science of Emotion and Sensibility
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• v.15 no.1
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• pp.37-46
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• 2012

We tested the effects of endogenous attention and reorienting on the performance of detection task. In the classic detection paradigm of Posner and Cohen (1980), performance on target detection is measured, where target appears either on the same or difference spatial location of cue stimulus after brief period of SOA (stimulus onset asynchrony). In this study, we induced exogenous attention by manipulating predictability of cue for target, and also induced reorientation by inserting additional (reorienting) cue between initial cue and target. Experiment 1 had three conditions of reorienting speed: Early, middle, and late. Facilitation and IOR (inhibition of return) occurred in different forms depending on SOA and reorienting speed, but we were not able to discover interpretable pattern in the results. However, reanalysis of early reorienting condition revealed that facilitation and IOR occurred in a crossed manner where short SOA found facilitation and long SOA did IOR, the typical results of simple detection task. Experiment 2 collected additional data to replicate the results in early reorienting condition of experiment 1. The results obtained that facilitation occurred with short SOA and IOR with long SOA. These results contrast with those of Wright and Richard (2000) where they reported elimination of IOR when cue had predictability of target locations. These results suggest that additional cue (here, orienting cue), which rapidly appears before extinction of IOR by prior cue, brings about double IOR. The present research demonstrates that even when attention is allocated to certain location via endogenous mechanism, rapidly repeating cues in certain location maximizes IOR that offsets the effects of endogenous attention to the same location.

• Korean Journal of Cognitive Science
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• v.26 no.1
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• pp.1-26
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• 2015

The purpose of this study was to examine whether the phonological information or the orthographic information plays a major role in visual word recognition. To do so, we used a non-word lexical decision task(LDT) in Experiment 1 and masked priming tasks in Experiement 2 and 3. The results of Experiment 1 showed that reaction times and the error rates were affected by the orthographic characteristics of the non-word stimuli such that orthographically similar non-words condition showed prolonged reaction times and higher error rates than control condition. In Experiment 2 and Experiment 3, the participants performed masked priming lexical decision tasks in two SOA conditions(60ms, 150ms). The results of the both experiments showed that the orthographically identical first syllable priming facilitated lexical decision of the target words while both of the pseudo-homophone priming and the phonologically identical first syllable priming did not. The dual route hypothesis(Coltheart et al, 2001), assuming that orthographic information rather than phonological information is the major source for the visual word recognition processes, fits well with the results of the current study.

• The Journal of the Korea Contents Association
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• v.8 no.12
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• pp.81-90
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• 2008

The development of digital technologies has changed the paradigm of an information-oriented society. Accordingly, the media-art and the net-art using digital media have been developed more interactively. Under the this influence, various experimental works using digital media are being produced and having a try to combination of art and digital on the network. In this paper, we looked into the relation between characteristics and playful of the net-art and analized the relation among interactive, network characteristics and intuitive play implemented on the net-art. Based upon these analyses, we intend to offer new aesthetic experiences through playful expression for humorous emotion on a traditional character, Dokkaebi.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.3
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• pp.177-181
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• 2013

As smart devices and OS with communication capabilities based latest NFC (Near Field Communication) have been spreaded, many applications with using existing RFID are being replaced to NFC. Smart NFC technology and existing services and devices can be easily combined convergence and advantage of smart phones, such as authentication and billing, medical care, the creation of a new paradigm of Network Communication are to be expected. By developing H/W, S/W of the Smart NFC Security Authenticator(SNSA), satisfying with wireless communication test results within accepted reference value, analyzing and testing the impact of topology, the signal performance of Daisy Chain Topology was much better than Star Topology's.

• Journal of the Korea Society of Computer and Information
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• v.6 no.2
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• pp.152-156
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• 2001

Internet shopping mall is growing the new paradigm of a next generation commerce. And, the primary goal of a shopping mall web site is to facilitate economic action. Therefore. it is important in designing the shopping mall to support consumer's behaviors characteristics of a traditional commerce, This paper analyzed and evaluated two shopping mall with regard to consumer's behaviors characteristics. It is used the method of a user's performance and a subjective evaluation. It was shown that the user prefered the shopping mall web site to analogy with the traditional commerce pattern. Also, the database of an anatomic data and the development of a 3D virtual environment are suggested.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.622-623
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• 2011

산업화시대 이래로 과학기술의 진보, 물질문명의 발달과 더불어 에너지 소비량도 폭발적으로 증가하여 왔다. 이로 인한 환경문제, 지구온난화 등 범지구적인 차원의 이슈가 발생하였다. 기후변화에 대처하기 위한 에너지 절약은 정책당국자, 학계, 산업계뿐만 아니라 일반시민들에게 있어서도 오랫동안 고민되어온 화두가 되어 오고 있다. 또한, 최근 발생한 일본의 원자력 방사능 유출건도 일본 수도권의 막대한 전기 소비량을 뒷받침하기 위해 건설된 발전소로 인한 2차 피해라는 측면에서 보다 안전하고 환경 친화적 재생적인 에너지에 대한 관심은 더욱 높아갈 수 밖에 없는 실정이다. 그러나 이를 위해 수많은 캠페인들이 행해져 왔음에도 불구하고 에너지 과소비는 여전히 해결되지 않고 있는 난제 중에 하나이다. 이러한 오랜 이슈를 해결하기 위해 기존의 에너지 절감 정책의 틀에서 벗어나 인간의 실질적인 소비행태에 변화를 주려는 대안 모색을 목표로 경제학의 새로운 패러다임인 행동주의 경제학의 프레임워크를 동원하여 효과적인 에너지 절감방안을 사람들의 제한적 합리성에 근거하여 모색하고자 한다. 더불어 이러한 시도는 최신 IT기술과의 융합을 통해 그 효율성을 극대화할 수 있을 것이다. 따라서 행동주의 경제학의 이론적 개념과 실질적인 적용사례를 살펴보고, IT기술의 융합을 시도할 때 고려해야할 사항들에 대해서도 논의를 전개해 나갈 것이다. 이를 통해, 효과적이고 효율적인 에너지 절감정책을 발견하기 위한 정보의 전달방식, 정보의 영향력, 편익측면의 제약사항 등에 대한 다양한 실험적인 연구들을 촉구하고자 한다.