• 한국컴퓨터정보학회논문지
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• 제21권10호
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• pp.43-48
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• 2016

This study is to examine how big data collects user's information and is used; the status quo of exposures of user's information, and various measures of self-control by the user. This study is also to look their ethical issues and discuss problems of privacy concerning big data. As a way for users to self-control their information, they need to check the log-in state of web portal sites and set up their account so that customized advertisement and location information cannot be tracked. When posting a blog, the value of posting should be controlled. When becoming a member of a web site, users must check the access terms before agreement and beware of chained agreements and/or membership joins in order to control the exposure of their personal information. To prevent information abuse through big data through which user's information is collected and analyzed, all users must have the right to control, block or allow personal information. For an individual to have the right to control over his information, users must understand the concept of user's information and practice ethics accompanied by newly given roles in the Internet space, which will lead to the establishment of the sound and mature information society on the Internet.

• 융합정보논문지
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• 제7권3호
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• pp.165-171
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• 2017

최근 스마트 기기들의 개발과 연동된 네트워크는 사물인터넷의 보급과 함께 사용자 편익 우선에 많은 기여를 하고 있다. 특히, 사물인터넷은 스마트 홈 뿐만 아니라 스마트 기기를 이용한 모든 분야에서 활발하게 진행되고 있다. 본 논문에서는 스마트 기기 및 사물인터넷 기기들의 활용으로 혁신적이고 실용적인 지능형 커피숍 관리 시스템을 설계하였다. 본 시스템은 키오스크 주문뿐만 아니라 스마트폰 주문이 가능하며 비콘 기반의 사용자 자동 인식 기능도 제공한다. 그리고 지오 펜스를 이용한 사용자 위치 정보를 파악하여 기다림 없는 주문 제작이 가능하도록 하였다. 본 논문에서는 최종적으로 빅데이터 기반 날씨, 용도, 시간, 사용자 기반 추천 서비스도 제공하도록 하였다. 따라서, 본 시스템은 기존의 커피숍에 비해 비용 절감과 업무의 효율성이 증대되었다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제9권6호
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• pp.2078-2094
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• 2015

Now a days, Efficient processing of Broadcast Queries is of critical importance with the ever-increasing deployment and use of mobile technologies. BQs have certain unique characteristics that the traditional spatial query processing in centralized databases does not address. In novel query processing technique, by maintaining high scalability and accuracy, latency is reduced considerably in answering BQs. Novel approach is based on peer-to-peer sharing, which enables us to process queries without delay at a mobile host by using query results cached in its neighboring mobile peers. We design and evaluate cooperative caching techniques to efficiently support data access in ad hoc networks. We first propose two schemes: Cache Data, which caches the data, and Cache Path, which caches the data path. After analyzing the performance of those two schemes, we propose a hybrid approach (Hybrid Cache), which can further improve the performance by taking advantage of Cache Data and Cache Path while avoiding their weaknesses. Cache replacement policies are also studied to further improve the performance. Simulation results show that the proposed schemes can significantly reduce the query delay and message complexity when compared to other caching schemes.

• 한국주거학회논문집
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• 제14권5호
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• pp.1-9
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• 2003

The purpose of this study is to consider the community design applications in the senior collective housing in Hyogo Prefecture, Japan. It was performed by two programs, application program and space design program. The former is focused on the participation of residents to the planing and design process, sharing, community activity, social interaction, and management by residents. The latter is focused on the common space(room) design. It was also performed by literature review, observation, and interview. The findings for the community design as an application program in SCH are almost the same with those in CH. But, the level of common meal and common laundry in SCH is lower than that of CH. And space design program is focused on the location and scale of common space(room) which is related to the number of users. As a result, the positive possibilities of SCH as a new residential type for the self-reliant seniors can be confirmed. The difference of community design application between CH and SCH is caused by various factors such as senior's health conditions, economic factors, and Japanese life style.

• 한국주거학회논문집
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• 제22권4호
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• pp.1-9
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• 2011

The purpose of this research lies in providing basic data for appropriate territorial adjustment within the family by understanding the relation to family members and how 'territorial dislocations' caused by differences in personal space and behavioral domains are used and controlled as living elements. As a result, the following data could be obtained. 1. General usage conditions of living elements. When the order of usage conditions of living elements is reviewed, the living elements interspersed at the personal space and behavioral territory in public and private spaces show a high usage rate, and in the case where living elements are shared with other families, many living elements are controlled by each family. Also, for living elements with a high possibility of sharing, a high consciousness for public usage is shown rather than elements controlling the territory, and the usage rate as territory controlling living elements is not high. 2. Compared to Japan, in Korea elements that can be placed at a certain location are often used as elements that resolve 'territorial dislocation', using furniture rather than objects. On the other hand, in Japan 'territorial dislocation' is often resolved by establishing a personal territory within the living space. Lastly, compared to Japan, in Korea 'territorial dislocation' is often resolved by maintaining a personal territory spatially rather than territorially.

• 한국멀티미디어학회논문지
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• 제20권7호
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• pp.986-993
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• 2017

Object Tracking is a technique for tracking moving objects over time in a video image. Using object tracking technique, many research are conducted such a detecting dangerous situation and recognizing the movement of nearby objects in a smart car. However, it still remains a challenging task such as occlusion, deformation, background clutter, illumination variation, etc. In this paper, we propose a novel deep visual object tracking method that can be operated in robust to many challenging task. For the robust visual object tracking, we proposed a Convolutional Neural Network(CNN) which shares weight of the convolutional layers. Input of the CNN is a three; first frame object image, object image in a previous frame, and current search frame containing the object movement. Also we propose a method to consider the motion of the object when determining the current search area to search for the location of the object. Extensive experimental results on a authorized resource database showed that the proposed method outperformed than the conventional methods.

• 유통과학연구
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• 제14권6호
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• pp.27-37
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• 2016

Purpose - This study aims to suggest a developmental direction to small enterprisers who start their business. The developmental direction makes the small enterprisers more stable with providing the Business District Information System service, which offers the location and business area's information aimed at pre-enterprisers after analyzing its overcrowded index's current state and problems. Research design, data, and methodology - This research proposes the developmental direction for helping the pre-small enterprisers to have more stability through examining the Business District Information System's-operated by Small Enterprise and Market Service-overcrowded index's current state and problems. Results - This system has drawbacks about giving the start-up overcrowded index as follows: ① non-accurate consultative group for sharing the DB ② providing analysis information, not evaluation information ③ not to anticipate the changes of business types & the flow of business district and perceive the symptom data with providing predictive information. Conclusions - This system should be more publicized through the mass media for making it approachable with collecting the user's opinion and investigating customer satisfaction & the level of awareness.

• 한국CDE학회논문집
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• 제15권6호
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• pp.460-466
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• 2010

These days, it is getting important to have more chances to visit natural environment for the wellbeing life. The advancement of digital technologies allows us to get useful information regardless of time and location. In this paper, we investigate a way of improving user experience in the natural green environment using the digital technologies. This paper proposes a system called Green-UX-Story which supports users to create and share their story through the online and offline green experience. The system consists of two main systems: the "Story-Field" and the "Story-Tree". The Story-Field consists of a certain number of the Story-Trees allocated to a certain green site. In the Story-Field, users can see the Story-Trees that are owned by other users and share their stories. The Story-Tree contains the user-story in each branch and green information that are captured by the user on the web. The Story-Tree is generated using the L-system algorithm as the user adds stories. The main purpose of the system is to enable users to write their green stories from the both online and offline experiences. This paper describes the system configuration and the user scenario of the Green-UX-story.

• 중소기업융합학회논문지
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• 제6권3호
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• pp.37-41
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• 2016

본 논문에서는 무선통신(Wi-Fi)을 이용하여 화재 발생을 다수의 사람들에게 알릴 수 있는 시스템을 제안한다. 이 시스템은 아두이노를 기반으로 연기 불꽃 온도센서로 화재 발생을 감지하고, 감지된 데이터를 무선통신을 이용해 서버로 전송한다. 서버에 있는 데이터를 이용하여 단말기와 화재가 발생한 감지기를 통해 화재 상황을 받는다. 그리고 화재 위치 데이터가 포함되어 신고가 가능하다. 이 시스템에서 단말기 어플리케이션의 푸시 기능으로 감지기로부터 화재 알림을 받아 볼 수 있었고, 감지기 연동 및 SMS 신고를 확인하였다. 이 결과를 바탕으로 인터넷을 이용해 화재와 같은 긴급한 정보를 단말기로 사람들에게 전달할 수 있는 시스템이 실제로 활용 가능함을 확인할 수 있었다.

• 정보처리학회논문지C
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• 제18C권4호
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• pp.217-226
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• 2011

최근 다양한 스마트폰이 개발 보급되면서 SNS(Social Network Service)를 사용하는 사용자 또한 급격히 증가하였다. SNS는 기존 모바일 기기에서 수집할 수 있었던 문자 및 통화내역과 같은 단순한 사용자 데이터 외에도 주고 받은 사진 및 동영상, 음성쪽지나 위치 공유, 대화 내역 등 다양한 정보가 저장되어 디지털 포렌식 관점에서 유용한 데이터 획득이 가능하다. 본 논문에서는 최근 많이 사용하고 있는 아이폰을 대상으로 스마트폰에서 이용할 수 있는 SNS 클라이언트와 각 클라이언트 별로 수집할 수 있는 데이터의 종류를 살펴본다. 또, 각 데이터간의 연관관계를 통해 수집된 데이터의 효율적인 분석 방법을 제시한다.