• Journal of Information Science Theory and Practice
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• 제4권2호
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• pp.6-20
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• 2016

In the last few years, a new type of synchronous social networking services (SNSs) has emerged—social live streaming services (SLSSs). Studying SLSSs is a new and exciting research field in information science. What information behaviors do users of live streaming platforms exhibit? In our empirical study we analyzed information production behavior (i.e., broadcasting) as well as information reception behavior (watching streams and commenting on them). We conducted two quantitative investigations, namely an online survey with YouNow users (N = 123) and observations of live streams on YouNow (N = 434). YouNow is a service with video streams mostly made by adolescents for adolescents. YouNow users like to watch streams, to chat while watching, and to reward performers by using emoticons. While broadcasting, there is no anonymity (as in nearly all other WWW services). Synchronous SNSs remind us of the film The Truman Show, as anyone has the chance to consciously broadcast his or her own life real-time.

• 한국멀티미디어학회논문지
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• 제23권10호
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• pp.1331-1338
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• 2020

Social viewing has become an increasingly common viewing pattern by combining SNS use with video-watching. Accordingly, social viewing has attracted much scholarly attention, but a more comprehensive understanding of the process and effects of social viewing is warranted. For this, this study incorporated social viewing motivations, viewer satisfaction, and the continuous use intention, taking the viewer's communicative behavior into account as a possible moderator. This study conducted an online survey (N=334). Among four motivations, enjoyment, sharing and expression were significant predictors of program and communication satisfaction. Information, however, was only associated with program satisfaction but not with communication satisfaction. The moderating effects of three communication behaviors, production, sharing, and reception, were discussed in the relationship between user motivations and viewing satisfaction and continuous use intention. Production behaviors played a significant moderating role in between enjoyment, information, sharing, and communication satisfaction. Sharing moderatied information, sharing, and program satisfaction, whereas reception was not a significant moderator.

• 한국콘텐츠학회논문지
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• 제17권4호
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• pp.36-47
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• 2017

본 논문에서는 의료정보 광고를 인식하는 대학생들의 주관성을 진단하고, 기능적인 측면에서 세부적인 유형적 효과요인들을 확인하여 향후 개선과 방향성을 알아보고자 한다. 또한 대학생들의 의료정보 광고에 관한 주관적 성향을 살펴보기 위해서 Q방법론을 이용하였다. 분석된 결과, 총 5가지의 유형, 즉, 제 1유형[(N=4) : 관심형(Interest Type)], 제 2유형[(N=3) : 비교형(comparison Type)], 제 3유형[(N=3) : 제품중심형(Product-focus Type)], 제 4유형[(N=3) : 불신형(Disbelief Type)], 제 5유형[(N=2) : 개선형(Improvement Type)] 등으로 분류되었다. 향후, 계량적인 실증적 연구와 소비자들의 의견을 종합한 비교와 대안책이 추가된다면, 대학생들의 의료정보 광고에 관한 주관성에 관한 보다 심도 있고, 함의있는 연구결과를 확인하는데 의미를 두고 있다.

• 통상정보연구
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• 제9권3호
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• pp.305-320
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• 2007

With expanded use of B2B(between enterprises), B2G(between enterprises and government) and EDI(Electronic Data Interchange), and increased amount of available network information and information protection threat, as it was judged that security can not be perfectly assured only with security technology such as electronic signature/authorization and access control, Bayesian networks have been developed for protection of information. Therefore, this study speculates Bayesian networks system, centering on ERP(Enterprise Resource Planning). The Bayesian networks system is one of the methods to resolve uncertainty in electronic data interchange and is applied to overcome uncertainty of abnormal invasion detection in ERP. Bayesian networks are applied to construct profiling for system call and network data, and simulate against abnormal invasion detection. The host-based abnormal invasion detection system in electronic trade analyses system call, applies Bayesian probability values, and constructs normal behavior profile to detect abnormal behaviors. This study assumes before and after of delivery behavior of the electronic document through Bayesian probability value and expresses before and after of the delivery behavior or events based on Bayesian networks. Therefore, profiling process using Bayesian networks can be applied for abnormal invasion detection based on host and network. In respect to transmission and reception of electronic documents, we need further studies on standards that classify abnormal invasion of various patterns in ERP and evaluate them by Bayesian probability values, and on classification of B2B invasion pattern genealogy to effectively detect deformed abnormal invasion patterns.

• Journal of Information Processing Systems
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• 제18권4호
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• pp.470-479
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• 2022

Mukbang is a type of foodcasting where a host records or streams their eating rituals for audience consumption in live format. With origins in South Korea via the online broadcast genre found on Afreeca TV in the mid-2000s, the phenomenon has since found global popularity. Its development as a full-fledged genre is based on a communication culture that invites people to a meal rather than to talk to one another; viewers watch in silence as a host consumes a copious number of dishes from Korean gastronomy to fast food to other ethnic cuisine on display. An invitation to eat means the beginning of a public relationship that quickly turns to a private shared experience. This study analyzes several Mukbang video postings and makes use of Linden's culture approach model to provide a view toward a number of cross-cultural connections by Koreans and non-Korean audiences. Prior to the study, 10 Korean eating shows were selected and used as standard models. Korean Mukbang mainly consists of eating behavior and ASMR, with very few storytelling or narrative devices utilized by its creators. For this reason, eating shows make a very private connection. In other ways, this paper shows how 28 Mukbang-related YouTube contents selected by Ranker were evolving and examined through notions of acculturation and reception theory.

• International journal of advanced smart convergence
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• 제10권4호
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• pp.66-71
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• 2021

In this paper, we sought ways to accept and reject advertisements using the function of a smartphone gyro sensor to enable selective transmission and reception of YouTube advertisements by linking the gyro function of mobile phones. In the case of YouTube advertisements, the skip button is activated after the advertisement is played for a certain period of time (about 5 seconds) before and after the video is played. During the time the advertisement is maintained, it can be used to achieve various goals such as increased website traffic, brand awareness, and sales induction. Since this type of advertisement is not a setting in which the transition takes place immediately, it can be seen as the most suitable setting to strengthen brand awareness. However, due to the nature of the YouTube advertising system, it is often discarded through users' skipping behavior in the process of sharing and reproducing information. Therefore, in this paper, we implemented an optional advertisement transmission system that applies the principle of gyroscope to minimize wasted advertisements and selectively maintain desired advertisements in consideration of the transmission and reception aspects of advertisement broadcasts. It measures rotational repulsive force with directional stability and car wash characteristics, and uses algorithms to identify the slope and angular speed of mobile phones to ensure that advertisements are transmitted and received. Through this, it is expected that advertisement transmission can be performed on the side of an advertisement provider, and selective advertisement reception can be performed on the side of a user.

• Journal of Computing Science and Engineering
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• 제9권2호
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• pp.108-117
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• 2015

Interrupt handling is generally separated from process scheduling. This can lead to a scheduling anomaly and priority inversion. The processor can interrupt a higher priority process that is currently executing, in order to handle a network packet reception interruption on behalf of its intended lower priority receiver process. We propose a new network interrupt handling scheme that combines interrupt handling with process scheduling and the priority of the process. The proposed scheme employs techniques to identify the intended receiver process of an incoming packet at an earlier phase. We implement a prototype system of the proposed scheme on Linux 2.6, and our experiment results show that the prototype system supports the predictable real-time behavior of higher priority processes even when excessive traffic is sent to lower priority processes.

• 한국전자통신학회논문지
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• 제11권3호
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• pp.303-308
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• 2016

최근 네트워크 기술이 급속도로 발전하고 인터넷 상에서 멀티미디어 서비스 같은 높은 대역폭을 요구하는 서비스들이 증가하면서 네트워크 트래픽이 급속히 증가하고 있다. 이러한 트래픽의 급증으로 인하여 네트워크 자원 부족 및 서비스의 품질 저하등의 문제점들이 발생하고 있으며, 이를 해결하기 위해 QoS(: Quality of Service)를 보장하기 위한 다양한 기법들이 연구되고 있다. 현재 QoS를 보장하기 위한 기법들 중 가장 대표적인 방식이 차등화 서비스(Differentiated Service)이다. 차등화 서비스에서는 AF(: Assured Forwarding) PHB(: Per Hop Behavior)를 정의하고 이를 통해 통계적으로 일정 수준 이상의 전송률(throughput)을 보장하고자 한다. 그러나, 인터넷 트래픽의 대부분을 차지하고 있는 TCP의 혼잡제어 방식은 개별 플로(flow)를 관리하지 않으면서 전송률을 보장하려고 하는 차등화 서비스의 방식과 근본적인 부조화를 보인다. 본 논문에서는 이러한 부조화 현상을 시뮬레이션을 통해 예시적으로 보여주고, 망에서 터미널의 TCP를 제어하여 이를 해결할 수 있는 방안을 제시하였다. 본 논문에서 제안한 방식은 TCP를 제어하기 위해 ACK에 포함되는 수신 윈도우 크기 정보를 조작하며, 이는 현재 사용중인 TCP 알고리즘의 수정을 필요로 하지 않는다.

• 융합신호처리학회논문지
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• 제23권2호
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• pp.91-96
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• 2022

현재 카메라 기반 기술 수준으로는 센서 기반 기본 생활패턴 인지 기술은 정확한 데이터를 얻기 위해서는 불편함을 감수해야 하고, 상용화 밴드 제품은 정확한 데이터 수집이 어려우며, 행동의 동기와 원인 및 심리적 영향 등을 고려하지 못하는 실정이다. 본 논문에서는 생활패턴 인지를 위한 레이더 기술은 일상생활에서 주변의 사람이나 물체를 탐지하기 위해 고안된 파형을 전송하여 반사되어 오는 수신 신호를 신호 처리함으로써 물체와의 거리, 속도, 각도를 측정하는 기술을 적용하여 기존 영상 기반의 서비스에서의 사생활 보호와 같은 이슈를 보완할 수 있도록 고안하였다. 제안 시스템의 구현을 위해 TIIWR1642 칩을 기반으로 60GHz 대역 밀리미터파 FMCW 송신/수신을 위한 RF 칩셋제어, 거리/속도/각도 검출을 위한 모듈의 개발 및 신호처리 소프트웨어를 포함한 기술을 구현하였다. 생활 정보에 대한 메타 분석으로 생활패턴의 정량적 분석을 통해 개인별 맞춤형 생활패턴 추출을 통해 자기 관리 및 행동 시퀀스를 산출하여 개인별 생활패턴의 분석이 보안 및 안전 응용서비스로 가능할 것으로 기대된다.

• 사물인터넷융복합논문지
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• 제8권5호
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• pp.119-125
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• 2022

최근 고령화로 인한 치매환자의 증가로 그들의 배회행동과 실종예방을 위한 대책이 시급하다. 이러한 문제를 해결하기 위해 다양한 인증 방법과 위치 탐지 기법들이 소개되고 있으나 개인인증의 보안성 문제와 실내·외를 전반적으로 확인할 수 있는 시스템은 찾아보기 어려웠다. 본 연구에서는 프라이빗 블록체인 환경에서 손목 밴드 형태의 웨어러블 디바이스를 활용해 개인인증, 기본적 건강 상태 파악 및 실내·외의 전반적인 위치를 파악할 수 있는 시스템을 제안하고자 한다. 이 시스템에서 개인인증은 위변조가 어렵고 개인식별성이 높은 ECG를, 실내는 저전력, 비접촉 및 자동 송수신 방식으로 사용이 용이한 블루투스 비콘을, 실외는 GPS 위성의 의사거리 오차를 보정한 DGPS를 활용하여 치매환자의 위치를 파악함으로써 배회행동 및 이상징후를 탐지하고자 한다. 이를 통해 재가나 요양시설 등에서 생활하는 치매환자의 배회행동 및 이상징후 시 신속한 대처와 실종예방에 기여하고자 한다.