• Proceedings of the Korea Society of Design Studies Conference
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• 2005.05a
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• pp.322-323
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• 2005

Currently, there are varieties of communication media options, such as E-mail, Instant Message, SMS and Computer discussion group. These genres keep expanding with the integration of computers and wireless technologies and even more it allows people to communicate at different time without travelling distances, However, it is mostly impossible the one communication media satisfies the same task demands under different situations. And online communication media can not reach the actual purpose of traditional communication in keeping the interpersonal relationship and richness of communication by sharing time and physical space. Therefore, we researched and examined on the current state of appropriateness communication style in different given situation as affected by requirement and its characteristics. With the result in research and survey, we suggested new communication style mediated by everyday thing through the case study.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2007.11a
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• pp.113-117
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• 2007

Wabi-Sabi is the most conspicuous and characteristic feature of what we think of as traditional Japanese beauty. It occupies roughly the same position in the japanese pantheon of aesthetic values as do the Greek ideals of beauty and perfection in the West. All things air impermanent. All things are imperfect. all things are incomplete. it offers an aesthetic ideal that uses the uncompromising touch of mortality to focus the mind on the exquisite transient beauty to be found in aoo things impermanent. Wabi-Sabi is a beauty of things imperfect, impermanent, and incomplete. It is a beauty of things modest and humble. It is a beauty of things unconventional. Wabi-Sabi is the art of everyday life. These may be the methods for the relationship establishment between human and space on the ground of Wabi-Sabl concepts which is commonly found no in contemporary interior space in japan.

• Journal of the Korea Society of Computer and Information
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• v.23 no.12
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• pp.137-144
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• 2018

In this paper, we propose an well-organized lecture note for giving a better understanding on the Internet of Things (IoT) to people including non-computer majors without computing and communication knowledge. In recent years, the term 'IoT' has been popularized, and IoT will make a huge impact on our industries, societies, and environments. Although there are large amount of literature on presenting IoT from technological perspectives, few are published that are organized for teaching students having non-computer-related majors. Based on research and education experiences on IoT, we tried to make a lecture note focusing on the process of collecting data from everyday objects, transmitting and sharing data, and utilizing data to create new values for us. The proposed lecture note was employed in teaching a liberal arts class, and it was shown that students could have an understanding of what IoT really means and how IoT could change our world.

• International Journal of Computer Science & Network Security
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• v.22 no.8
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• pp.275-279
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• 2022

The growth of technology nowadays has made many things easy for humans. These things are from everyday small task to more complex tasks. Such growth also comes with the illegal activities that are perform by using technology. These illegal activities can simple as displaying annoying message to big frauds. The easiest way for the attacker to perform such activities is to convenience user to click on the malicious link. It has been a great concern since a decay to classify URLs as malicious or benign. The blacklist has been used initially for that purpose and is it being used nowadays. It is efficient but has a drawback to update blacklist automatically. So, this method is replace by classification of URLs based on machine learning algorithms. In this paper we have use four machine learning classification algorithms to classify URLs as malicious or benign. These algorithms are support vector machine, random forest, n-nearest neighbor, and decision tree. The dataset that is used in this research has 36694 instances. A comparison of precision accuracy and recall values are shown for dataset with and without preprocessing.

• Architectural research
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• v.13 no.1
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• pp.11-16
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• 2011

This article illuminates the relationship between the human being and the surrounding things by referring to the philosophy of Martin Heidegger and Maurice Merleau-Ponty. Criticizing our habitual approaches to apprehending 'what a thing is,' the two thinkers elucidate how 'what a thing is' can be understood only in conjunction with situations in the everyday and how humanity is joined with the qualities of the thing. In addition to the situated-ness of a thing, this article demonstrates the situated-ness of the human being, too, by referring to the notion of the horizon in the tradition of phenomenology. The last part of the paper discusses the basic premises of sustainability in reference to the situated-ness of both things and human beings. Framing natural things such as light as the alternative sources of energy propagandized in sustainability seems progressive. However, this attitude maintains fundamentally the same instrumental attitude we had towards nature, an attitude that has caused the current ecological crisis. By pointing this out, this article seeks to shape a ground for a broad spectrum of sustainability that embraces non-instrumental dimensions such as the practical, the ethical and the spiritual. This article also points out the limits of some of the currently available versions of ecology such as Shallow Ecology and Deep Ecology. In so doing, it seeks to lay out the parameters that any future version of sustainability and ecology needs to address.

• Journal of Information Processing Systems
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• v.15 no.4
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• pp.797-819
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• 2019

Internet of Things (IoT) is the paradigm of network of Internet-connected things as objects that constantly sense the physical world and share the data for further processing. At the core of IoT lies the early technology of radio frequency identification (RFID), which provides accurate location tracking of real-world objects. With its small size and convenience, RFID tags can be attached to everyday items such as books, clothes, furniture and the like as well as to animals, plants, and even humans. This phenomenon is the beginning of new applications and services for the industry and consumer market. IoT is regarded as a fourth industrial revolution because of its massive coverage of services around the world from smart homes to artificial intelligence-enabled smart driving cars, Internet-enabled medical equipment, etc. It is estimated that there will be several dozens of billions of IoT devices ready and operating until 2020 around the world. Despite the growing statistics, however, IoT has security vulnerabilities that must be addressed appropriately to avoid causing damage in the future. As such, we mention some fields of study as a future topic at the end of the survey. Consequently, in this comprehensive survey of IoT, we will cover the architecture of IoT with various layered models, security characteristics, potential applications, and related supporting technologies of IoT such as 5G, MEC, cloud, WSN, etc., including the economic perspective of IoT and its future directions.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.325-327
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• 2022

최근 스마트 기기 시장이 커지며 이와 함께 스마트 기기를 이용한 연구가 활발하다. 현재 많이 사용되는 스마트 기기인 스마트워치와 스마트폰에는 다양한 센서들이 내장되어있다. 이 센서들을 통해 생성된 데이터를 이용하면 사용자의 행동 분류, 건강관리 등 사용자에게 도움이 되는 서비스를 제공할 수 있다. 본 논문에서는 어플리케이션 개발을 통해 상용 스마트기기인 갤럭시 워치 4와 갤럭시 S10에 내장되어있는 센서의 원시데이터를 수집하고 수집한 데이터를 oneM2M 표준 플랫폼에 저장하였다. oneM2M 표준 플랫폼에 저장된 데이터는 API를 통해 손쉽게 사용할 수 있으며 여러 대의 스마트 기기 데이터를 수집하고 빅데이터를 구축한다면 많은 연구자들이 보다 편리하게 데이터를 이용하여 다양한 의미 있는 연구들을 진행할 수 있을 것이다.

• Journal of Internet of Things and Convergence
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• v.9 no.6
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• pp.17-22
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• 2023

Brain-Machine Interfaces(BMI) are interfaces that control machines by decoding brainwaves, which are electrical signals generated from neural activities. Although BMIs can be applied in various fields, their widespread usage is hindered by the low portability of the hardware required for brainwave measurement and decoding. To address this issue, previous research proposed a brain-machine interface system based on the Internet of Things (IoT) using cloud computing. In this study, we developed and tested an application that uses brainwaves to control the Pong game, demonstrating the real-time usability of the system. The results showed that users of the proposed BMI achieved scores comparable to optimal control artificial intelligence in real-time Pong game matches. Thus, this research suggests that IoT-based brain-machine interfaces can be utilized in a variety of real-time applications in everyday life.

• Journal of Korean Elementary Science Education
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• v.23 no.4
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• pp.344-356
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• 2004

In this study, we developed the program for 'Discretionary Activity' focusing on the multiple activities with everyday-life materials to enhance scientific creativity (MAEM-SC), which was specifically for students in the 6-7th grade according to the 7th curriculum in Korea. As important factors for scientific creativity, we selected the ability to find out the context relevant to scientific problems, the ability to connect the problem context to scientific knowledge, the ability to invent the ways to solve the problem scientifically, and ability to concentrate on the scientific problem solving activity. The topics of the program were drawn from common and familiar things in our everyday contexts, such as human body, everyday tools, food, play and toys, and everyday episodes. The multiple activities here mean the activities which are systematically constructed with the various types of activities with a specific intention. The multiple activities were designed in three types, that is, series type, parallel type, and combination type. Each of them consists of the several activities as follows: estimating and measuring, carrying out an experiment using body, inventing implement (tools), thinking statistically, writing creatively with scientific themes, and connecting one concept to another concept etc. Through a trial of the program, we found that this program has some positive influence on the enhancement both of the ability to find out the context relevant to scientific problems and the ability to connect it to the students' existing scientific knowledge.

• Journal of Service Research and Studies
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• v.2 no.2
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• pp.91-98
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• 2012

The emergence of new types of embedded computing devices and developments in wireless networking are broadening the domain of computing from the work place and home office to other facets of everyday life. This trend is expected to lead to a proliferation of Internet of Things (IoT) environments, in which inexpensive and interconnected computing devices are capable of supporting users in a range of tasks. Context-aware computing is a key source to develop such smart services. However, there are many challenges to enable services to be smart; Heterogeneous Computing Environments, Resource Limitations, Large Amount of Data Produced, and Different Requirements for Context Interpretation. Because of these challenges, there are difficulties in providing smart service by utilizing IoT devices. Currently, many researchers are conducting researches on mobile-computing based smart service development and provisioning and network infrastructure for interconnected IoT devices. Still, there are some limitations on developing core technologies for IoT computing based smart service development. In order to remedy this situation, this thesis presents a reusable framework that provides unique and noble features which are required in developing advanced context-aware IoT applications.