• Journal of Advanced Navigation Technology
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• v.16 no.4
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• pp.673-678
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• 2012

Traditional culture's researcher has attempting to public use as a various method. Example is design of digital archive and digital contents. However, in spite of this effort, traditional culture's researcher has difficulty to public use. Because traditional culture is hard to understand, and less interest than the other area. Especially, traditional culture has not environment that user can searching and using the culture's information due to difficult to search the data and layers. We propose a design to make an ontology using information profile for digital contents of traditional culture. Also, we use topic-map for the factors of ontology's relation, and specify their relation using topic vector.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2002.11a
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• pp.321-327
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• 2002

본 논문은 기존의 귀납적 결정 트리 방식에서의 문제점 개선을 통한 사용자 관심 프로파일 구축을 목적으로 한다. 특히 사용자 관심 프로파일의 정확도 향상을 위한 속성 선택에 대한 연구에 초점을 맞추고 있다. 사용자의 관심, 비관심 문서를 대상으로 사용자 관심 키워드를 생성하고 이를 바탕으로 초기 문서들을 재표현한다. 재표현된 문서를 입력 집합으로 하여 기계학습을 진행한다. 본 논문의 의사 결정 트리 생성 알고리즘은 입력 집합을 클래스별로 가장 잘 나누는 속성을 선택하여 노드를 구성하는 면에서는 기존의 알고리즘과 같다. 그러나 기존의 의사 결정 트리 알고리즘에서는 hill-climbing.방식을 사용함으로써 사용자의 관심을 나타내는 중요한 단어가 사용자 관심 프로파일에서 숨겨질 경우가 발생한다. 이를 최소화하기 위해 특징 추출을 통해 선택된 속성을 그대로 학습의 입력 데이터로 사용하는 것이 아니라 입력데이터를 가장 잘 나누는 속성과 그 다음 속성을 대상으로 disjunctive 연산을 통해 새로운 속성을 생성하여 이것을 속성 집합에 포함시키고 이를 학습의 입력 데이터로 이용한다. 이와 같이 disjunctive operator를 이용하여 새로운 속성을 의사 결정 트리 형성 시 이용하면 사용자의 중요한 관심을 포함하는 의미 있는(semantic) 사용자 관심 프로파일 구축이 가능해지고, 사용자 관심 프로파일을 기반으로 사용자가 관심 있는 문서를 제공할 수 있는 개인화 서비스를 제공한다.

• Journal of Korea Multimedia Society
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• v.8 no.2
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• pp.137-153
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• 2005

This paper presents a transcoding method that dynamically adapts Web pages to various devices. The proposed method is based on a CC/PP profile that is a standard description of a device's context information. Additionally, to support a sophisticated transcoding, we define an annotation schema for representing additional information about original contents. Since a mobile device has a screen of limited size, A Web page is splitted into many small ones. Our method constructs a navigation-map that represents the hierarchical relations among the splitted pages. Experimental results with various Web contents show that the proposed method is superior in terms of user's convenience of navigation and the transcoding Quality.

• Journal of Information Technology Services
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• v.13 no.3
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• pp.309-321
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• 2014

Recently, due to the advent of ubiquitous computing and the spread of intelligent portable device such as smart phone, iPad and PDA has been amplified, a variety of services and the amount of information has also increased fastly. It is becoming a part of our common life style that the demands for enjoying the wireless internet are increasing anytime or anyplace without any restriction of time and place. And also, the demands for e-commerce and many different items on e-commerce and interesting of associated items are increasing. Existing collaborative filtering (CF), explicit method, can not only reflect exact attributes of item, but also still has the problem of sparsity and scalability, though it has been practically used to improve these defects. In this paper, using a implicit method without onerous question and answer to the users, not used user's profile for rating to reduce customers' searching effort to find out the items with high purchasability, it is necessary for us to analyse the segmentation of customer and item based on customer data and purchase history data, which is able to reflect the attributes of the item in order to improve the accuracy of recommendation. We propose the method of recommendation system using association rule and weighted preference so as to consider many different items on e-commerce and to refect the profit/weight/importance of attributed of a item. To verify improved performance of proposing system, we make experiments with dataset collected in a cosmetic internet shopping mall.

• Journal of the Korea Convergence Society
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• v.6 no.5
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• pp.33-38
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• 2015

In a V2X convergence service environment, the principal service among infotainment services and driver management services must be supported centering on critical information of the driver, maintenance manager, customer, and anonymous user. Many software applications have considered solutions to be satisfied the specific requirements of driving care programs, and plans. This paper describes data flow diagram of a secure clinic system for driving car diagnosis, which is included in clinic configuration, clinic, clinic page, membership, clinic request processing, driver profile data, clinic membership data, and clinic authentication in the V2X convergence service environment. It is reviewed focusing on security threat issue of ITS diagnostic system such as spoofing, tampering, repudiation, disclosure, denial of service, and privilege out of STRIDE model.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2006.11a
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• pp.289-295
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• 2006

The Musical Slide Show MAF, which currently being standardized by MPEG, conveys the concept of combining several established standard technologies in a single file format. It defines the format of packing up MP3 audio data, along with MPEG-7 Simple Metadata Profile and MPEG-21 Digital Item Declaration metadata; with JPEC images and optional text, and synchronizes them all together to create a slideshow of JPEC image data associated to MP3 audio data during the audio playback. The implementation of Musical Slide Show MAF can be a music karaoke file where users can sing along while listening to the music, view the JPEG slideshow and reading the lyrics; or a story-telling file where users can listen to the narrated story by looking at the related illustration slideshow of the story In this paper we present the tool to producing the Musical Slide Show MAF contents. Regardless the knowledge of user on the MAF file format, the authoring tool simplify the manner of packaging several multimedia contents into single file.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.8
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• pp.1940-1946
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• 2013

The Object of smart healthcare service is focused on preventive healthcare and wellness; It also aims for the user oriented active service. Recently, Smart healthcare using smart-phone can support various services like basal physical fitness, caloric intake, checking heartbeat and so on. However, it has not yet commercially viable service model because of incomplete personal health devices standardization. We designed and implemented Android smart healthcare Manager to support ISO/IEEE 11073 by Bluetooth HDP using oximetry System.

• The KIPS Transactions:PartA
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• v.19A no.1
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• pp.61-68
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• 2012

Since the increasing use of smart devices such as smartphone and tablet PC improves the quality of convergence of broadcasting and telecommunication, many new media have been created. This smart device can provide personal environments based on user's profile (age, gender, and job) and current location. In addition, it can be regarded as a media platform with two-way communication. This paper proposes personalized message syndication, called PMS, based on smart devices and then analyzes its business and technical issues. The PMS service as a smart media provides consumers customized information and can be used for producer's marketing tools which can lead consumers' heart and participation.

• Proceedings of the Korean Information Science Society Conference
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• 2010.06c
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• pp.170-174
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• 2010

최근 무선 인터넷에서 사용자의 위치정보가 다양한 응용의 정보 요소로 활용되기 시작하였고, 이러한 응용의 하나로 위치기반 서비스(Location-Based Service: LBS)가 주목을 받고 있다. 그러나 위치기반 서비스에서는 서비스를 요청하는 사용자가 자신의 정확한 위치 정보를 데이터베이스 서버로 보내기 때문에 사용자의 개인 정보가 노출될 수 있는 취약성을 지니고 있다. 이에 모바일 사용자가 안전하고 편리하게 위치기반 서비스를 사용하기 위한 개인 정보보호 방법이 요구되었다. 사용자의 위치 정보를 보호하기 위해 전통적인 데이터베이스에서의 개인정보 보호를 위해 사용되었던 K-anonymity의 개념이 적용되었고, 그에 따른 익명화를 수행할 수 있는 모델이 제시되었다. 하지만 기존 연구되었던 모델들은 오직 사용자의 정확한 위치 정보만을 민감한 속성으로 고려하여 익명화를 수행하였기 때문에, 이후 제시된 사용자의 프로필 정보를 고려한 모델에 대해서는 기존의 익명화만으로는 완전한 프라이버시를 보장할 수 없게 되어 추가적인 처리 과정을 필요로 하게 되었다. 본 연구는 프로필 정보를 고려한 위치기반 서비스 모델에서 Private-to-Public 질의가 주어지는 경우에 발생하는 추가적인 개인 식별의 위협에 관한 문제를 정의하고 이에 대한 해결책을 제시하며, 또한 제안 기법이 사용자 정보 보호를 보장하며 기존 방안보다 효율적임을 보인다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.11
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• pp.2135-2142
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• 2007

Mobile device will be able to use the various contents from the advancement of the wireless Internet and mobile device manufacture technique. Each devices is HTTP headers about under using provides device information to contents provider in the provide the contents. However, There is no standard for device information provided, so interoperability problems, because external contents using mobile phone companies to provide the device information in a different way. International Organization for Standard OMA UAProf about under using it solved interoperability problems from outside. However, in using the UAProf can not provide for the complete device information, because MMS support information, smart card support, information and support for external storage is not specified. Thus, In this paper, we designed UAProf in base which provides the contents which has become optimize to the mobile device of domestic environment the mobile device description language which expresses device information which is necessar, and it used to design and implementation of the Contents Adaptation System.