• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.22 no.6
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• pp.173-178
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• 2022

Recently, a recommendation system using deep learning in social network services has been actively studied. However, in the case of a recommendation system using deep learning, the cold start problem and the increased learning time due to the complex computation exist as the disadvantage. In this paper, the user-tailored exercise routine recommendation algorithm is proposed using the user's metadata. Metadata (the user's height, weight, sex, etc.) set as the input of the model is applied to the designed model in the proposed algorithms. The exercise recommendation system model proposed in this paper is designed based on the neural collaborative filtering (NCF) algorithm using multi-layer perceptron and matrix factorization algorithm. The learning proceeds with proposed model by receiving user metadata and exercise information. The model where learning is completed provides recommendation score to the user when a specific exercise is set as the input of the model. As a result of the experiment, the proposed exercise recommendation system model showed 10% improvement in recommended performance and 50% reduction in learning time compared to the existing NCF model.

• Journal of the Korean Society for information Management
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• v.18 no.4
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• pp.57-79
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• 2001

The study designs and implements a metadata management system for archival and manuscripts control. It has two purposes. First purpose is to organize the collection that the Institution of Korean Church History holds by using the proposed metadata format. Second purpose is to suggest the model and framework for managing the collection. The proposed metadata is designed based on ISAD(G), USMARC AMC, EAD and Ebind, By using the proposed metadata, the collection management system, which allows an integrated retrieval, is implemented. In order to evaluate the efficiency of the proposed system as well as to gain the basic data for the improvement of the proposed system, a questionnaire survey through e-mail is conducted. The evaluation results will be utilized for improving and upgrading the proposed system, and the phrased implementation of applying the system to digital libraries is suggested.

• Journal of information and communication convergence engineering
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• v.7 no.1
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• pp.30-34
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• 2009

The encryption method is a well established technology for protecting sensitive data. However, once encrypted, the data can no longer be easily queried. The performance of the database depends on how to encrypt the sensitive data. In this paper we review the conventional encryption method which can be partially queried and propose the encryption method for numerical data which can be effectively queried. The proposed system includes the design of the service scenario, and metadata.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.615-617
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• 2012

N-Screen Service는 하나의 Content를 다양한 Device에서 사용가능하게 해주는 Service를 의미한다. 현재 N-Screen Service는 Content Service 형태로 봤을 때 OSMU(One Source Multi Use) Service를 제공한다. ASMU(Adaptive Source Multi Device) N-Screen Service의 조건으로 Device에 최적화된 Content를 제공하여야 한다. 이를 위해서는 Device에 최적화된 Content의 변환 및 Metadata의 이동이 자유로워야 한다. 본 논문에서는 ASMD를 지원하는 N-Screen Model을 제안한다. 특히 Home Network와 Cloud 사이의 Devicerks Content Metadata 이동과 Content 변환에 대한 방법을 제시하고자 한다.

• The Journal of Society for e-Business Studies
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• v.11 no.3
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• pp.73-88
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• 2006

As a computerized application for controlling enterprise processes, BPM(Business Process Management) has been received such concerns that many solution vendors developed their own process definition and storage methods. The fact causes the needs of process modeling standards for process model exchange and at the same time, requires the appropriate methodology for adopting the global standards. In this paper, we propose a transformation methodology of BPMN-based file into XMI(XML Metadata Interchange)-based neutral file format. We devised translation templates for 21 workflow patterns, and compared the results with BPEL4WS(Business Process Execution Language for Web Services) translation. As a result, our XMI transformation model enables more complete translation of process model in comparison with existing model, and thus can be practically utilized to the BPM vendors adopting BPMN standards.

• Journal of the Korean Society for information Management
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• v.30 no.2
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• pp.119-141
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• 2013

This study develops metadata elements based on the FRBR model for effectively managing and retrieving intangible cultural heritage records. Since intangible cultural heritage has a logical layer from its concept to a physical record that realizes the concept and it can be expressed in diverse formats such as video and audio, it is necessary to represent such rich relationships. Therefore, this study suggests a set of metadata elements at each of the four levels (work, expression, manifestation, and item) the FRBR Group 1 presents.

• Journal of the Korean Society for information Management
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• v.16 no.2
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• pp.149-164
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• 1999

The purpose of this paper is to introduce and discuss a newly-constructed metadata database system that facilitates the retrieval of faculty syllabi available on the Internet. This gateway system aims to provide users with one-stop access to syllabi posted by the faculty of the institutes of post-secondary education from all around the world. Several elements of the Dublin Core (DC) and other supplementary elements were used for cataloging the syllabi. The conceptual schema of all the selected elements of the syllabi was developed following the entity-relationship model. The metadata of the syllabi was then stored in a relational database system. Various searching and browsing interfaces were implemented to facilitate effective retrieval. The prototype, named as Gateway to Faculty Syllabi (GFS), is available at http:/Ais.skku.ac.kr/gfs/.

• International Journal of Advanced Culture Technology
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• v.8 no.3
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• pp.223-230
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• 2020

Companies have made an investment of cost and time to optimize processing of a new business model in a cloud environment, applying collaboration technology utilizing business processes in a social network. The collaborative processing method changed from traditional BPM to the cloud and a mobile cloud environment. We proposed a collaborative system for operating processes in social networks using MOXMDR-DAI+ (eXtended Metadata Registry-Data Access & Integration based multimedia ontology). The system operating cloud-based collaborative processes in application of MOXMDR-DAI+, which was suitable for data interoperation. MOXMDR-DAI+ applied to this system was an agent effectively supporting access and integration between multimedia content metadata schema and instance, which were necessary for data interoperation, of individual local system in the cloud environment, operating collaborative processes in the social network. In operating the social network-based collaborative processes, there occurred heterogeneousness such as schema structure and semantic collision due to queries in the processes and unit conversion between instances. It aimed to solve the occurrence of heterogeneousness in the process of metadata mapping using MOXMDR-DAI+ in the system. The system proposed in this study can visualize business processes. And it makes it easier to operate the collaboration process through mobile support. Real-time status monitoring of the operation process is possible through the dashboard, and it is possible to perform a collaborative process through expert search using a community in a social network environment.

• Proceedings of the Korean Information Science Society Conference
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• 2008.06c
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• pp.165-170
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• 2008

다양한 분야에서 ISO/IEC 11179를 기반으로 MDR(Metadata Registry)시스템들이 개발되었다. 그러나 현재 구축된 메타데이타 관리 시스템들은 표준을 따라서 생성되지 않아 메타데이타 간 불일치가 발생하는 문제가 있다. 그리고 메타데이타를 공유하고 교환할 수 있는 표준화된 접근방법을 제공하지 않아 MDR 시스템마다 상이한 방법을 이용하여 개발되는 문제점을 야기한다. 이러한 문제점들을 해결하기 위해 SQL/MDR이 제안되었다. SQL/MDR은 MDR에 대한 사용하기 쉬운 표준 인터페이스를 제공함으로써 반복적인 메타데이터 레지스트리 접근연산 개발 시 메타데이터 레지스트리 간 데이터 불일치를 개선할 수 있게 한다. 그러나 SQL/MDR은 검색을 위한 연산만을 지원할 뿐, MDR 구축 시 접근제어를 위한 연산은 제공하지 않아 정확하고 표준화된 MDR 구축 및 안전한 접근제어를 보장하지 못한다. 이 논문에서는 앞서 언급한 SQL/MDR문제점 중에서 안전한 접근제어를 보장할 수 있는 방법으로 MCL(Metadata Control Language)을 제안한다. MCL은 ISO/IEC 11179 Part 6에서 제안하는 사용자 그룹의 역할과 권한을 미리 정의하여 사용자를 사용자 그룹으로 할당하는 간단한 연산자를 사용함으로써 사용상의 편이성과 보안성을 증대시킨다. 또한 시스템 관리자가 쉽고 정확하게 MDR에 대한 접근제어 규칙을 쉽게 정의할 수 있게 하여 시스템 관리 시간 및 비용을 감소시킨다.

• ETRI Journal
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• v.35 no.2
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• pp.292-300
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• 2013

Augmented reality (AR) is a popular service in mobile devices, and many AR applications can be downloaded from app stores. As TV broadcasting has continued to integrate with the Internet, it has become an area in which the AR concept is able to reside, although in a simple form, such as an advertisement placed in the static region of a scene. There are some restrictions against TV broadcasting realizing AR since TVs are fixed devices and typically do not have GPS, geomagnetic, or acceleration sensors, which are standard equipment in mobile devices. However, the desire to experience AR on a large TV screen has triggered research and development for an ideal AR business model and service type. This paper introduces several use cases for augmented broadcasting services and also presents an augmented broadcasting metadata scheme designed for a broadcasting environment. We also verify some of the use cases and an augmented broadcasting metadata scheme in an implemented augmented broadcasting system based on a hybrid TV platform.