• Title/Summary/Keyword: 코딩 스킴

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Volume Data Compression Using Daubechies Wavelet Transforms (Daubechies 웨이블릿 변환을 이용한 볼륨 데이터 압축)

  • Hur, Young-Ju;Park, Sang-Hun
    • Proceedings of the Korea Information Processing Society Conference
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    • 2005.11a
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    • pp.1411-1414
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    • 2005
  • 볼륨 데이터는 시뮬레이션 통해 생성되거나 고성능 측정 장비를 이용해 측정된 값으로 구성되는 고차원 데이터의 한 형태로서 다양한 자연과학과 공학분야에서 폭넓게 활용되고 있다. 최근에는 각 분야에서 생성되는 계산 데이터의 용량이 점점 더 증가하고 있기 때문에 이런 대용량의 볼륨 데이터를 효과적으로 처리하기 위한 기법들에 관한 연구가 수행되고 있으며, 특히 대용량 볼륨 데이터 압축 기법에 대한 필요성이 증가하고 있다. 본 논문에서는 Daubechies 웨이블릿 변환과 zerobit 인코딩 스킴을 응용한 새로운 볼륨 데이터 압축 기법을 제안한다. 이 방법은 기존의 압축 방법에 비해 복원 데이터의 손실이 낮기 때문에 정밀한 영상을 요구하는 대용량 데이터 압축에 유용하게 사용될 수 있다.

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A Study on the Design of Metadata Element for TV Commercials (TV 광고자료의 메타데이터 요소설계에 관한 연구)

  • Kim, Jeong-Hyen
    • Journal of Korean Library and Information Science Society
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    • v.39 no.2
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    • pp.125-146
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    • 2008
  • At this point in time, advertisements data providers have no standard way of organizing advertisements, which has been causing confusion in information-sharing and data research. The purpose of this study is to design of metadata element for TV commercials by analyzing the characteristic features of TV commercials. First, it is to analyze characteristics, production process, composing elements of TV commercials through the literature review. Second, it is to analyze the characteristics of metadata elements on TV-Anytime and PB Core. Third, the 7 cases of advertisements data service providers are analyzed to extract the relevant data elements for TV commercial metadata. Forth, a Dublin Core was selected as basic metadata schema for TV commercial. Basic element is set as nineteen elements including , , , and . Sub-element is set as twenty seven elements. Finally, it is hoped that further studies of greater depth and specificity on organization and management of advertisements data may be undertaken.

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An Encoding Scheme Considering Diffused Lights In a Visual Light Communication System (가시광통신체계에서 난반사 조명을 고려한 인코딩 스킴)

  • Eun, Seongbae;Kim, Dong kyu;Cha, Shin
    • Journal of Korea Multimedia Society
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    • v.22 no.2
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    • pp.186-193
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    • 2019
  • Visible light communication technology is being studied and developed in various ways due to advantages such as high transmission speed, excellent positioning and higher security. However, existing visible light communication systems have difficulties in entering the market because they use special transmitters and receivers. We will overcome the difficulty if we develope a VLC system that uses a conventional LED light as a transmitter and a smartphone camera as a receiver. What matters is that LED lights include a scatter filter to prevent glareness for human eyes, but the existing VLC(Visual Light Communication) method can not be applied. In this paper, we propose a method to encode data with On / Off patterns of LEDs in the lighting with $M{\times}N$ LEDs. We defined parameters like L-off-able and K-seperated to facilitate the recognition of On / Off patterns in the diffused Lights. We conducted experiments using an LED lighting and smart phones to determine the parameter values. Also, the maximum transmission rate of our encoding technique is mathematically presented. Our encoding scheme can be applied to indoor and outdoor positioning applications or settlement of commercial transactions.

Metadata Elements Design and Application for Japanese Newspaper 'Chosunsibo' Issued in Colonial Korea (일제강점기 일본어신문 『조선시보』의 메타데이터 요소 개발과 적용 연구)

  • Rho, Jee-Hyun
    • Journal of Korean Library and Information Science Society
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    • v.50 no.4
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    • pp.137-158
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    • 2019
  • This study aims to develop metadata elements and vocabularies of 'Chosunsibo' issued in Korea during the Japanese colonial era. Despite the vast amount and historical values, newspaper articles in Chosunsibo are still unsearchable and difficult to access. To the end, this study includes as follows: (1) analyzed the DB construction and metadata elements of newspapers issued in Korea during the Japanese colonial, (2) investigated the morphological characteristics and content of 'Chosunsibo', and (3) derived metadata elements, encoding schemes and controlled vocabularies for 'Chosunsibo'. The final draft was verified in three methods: (1) review and revise through data input tests, (2) consulting by a DB expert agency, and (3) drawing up of crosswalks with metadata standards and related cases. The scope of this study is to design the metadata schema of the historical newspaper 'Chosunsibo' and develop a data input system based on that schema.

Protocol Analysis of Product Design Assignment based on Design Information and Design Process : A Case Study (제품디자인과제에 대한 디자인 정보와 프로세스에 기반한 프로토콜분석 사례연구)

  • Jin, Sun-Tai;Kim, Yong-Se
    • Archives of design research
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    • v.19 no.1 s.63
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    • pp.109-118
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    • 2006
  • A case study bas been conducted to explore design activities of four expert designers through protocol analysis, We examined relations among design information, process patterns and solution qualities with two complementary coding schemes based on design contents and design process, Relation between personal creativity modes and design activities has been examined as well. Regarding design process, an adequate distribution of activities in process may be necessary to bring out a good solution. It seemed that the more design contents about context, external knowledge, and general feature are used, the more unique design concepts are made. Regarding personal creativity modes, not much of differences in that design activity were observed while only a few relations between designer's personality and design activity were observed. The fact that the designers participated are all experienced designers could explain this. Investigation on the differences between novice designers and expert designer reflected in protocol data based on design information and design process coding scheme is to be done. Also, how personal process patterns observed through this protocol analysis can be utilized in composing design team.

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Exploratory Approach of Social Gameplay Behavior Pattern : Case Study of World of Warcrafts (소셜 게임플레이 행동패턴의 탐색적 접근 : World of Warcrafts를 중심으로)

  • Song, Seung-Keun
    • The Journal of the Korea Contents Association
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    • v.13 no.5
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    • pp.37-47
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    • 2013
  • The objective of this research is to discover the rule of gameplay related to the task interdependence to analyse the behavior pattern of social gameplay. Previous literatures related to the gameplay were reviewed and game which was suitable for the gameplay of the task interdependence was selected. A party-play includes a team of five people in the experiment during the gameplay with think-aloud method and video/audio data about action protocol and verbal report were collected. The video observation and protocol analysis were conducted to analyse data. The objective coding scheme were developed from consolidated sequence model task analysis. The player's behavior was analysed. The result was revealed that four rules and four modified rules were included into the total eight behavior pattern. A behavior graph integrated with five gameplay was written. The excellent cooperative spot and error and failure place could be identified. The social gameplay behavior graph is expected to be the key practical design guideline on whether the level design and balance design are proper.

An Empirical Study on Emotion-based Homepage Design (감성 기반의 웹페이지 디자인을 위한 실증적 연구)

  • Choi, Dong-Seong;Lee, Joo-Eun;Kim, Jin-Woo
    • Journal of KIISE:Computing Practices and Letters
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    • v.7 no.5
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    • pp.475-488
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    • 2001
  • With the increase of the number of Internet users, various methodologies have been proposed for the effective design of web page. However, the prior methodologies have focused only on the functional aspect of web page while ignoring the emotional aspects of web pages. This paper focuses on the emotional design of home pages and aims to provide a methodology to design a web page suitable for goal emotions. In order to achieve the main purpose, we have conducted three related studies. First, we have identified basic emotional dimensions representing various feeling users have from web pages as a pool of emotional adjectives. Second, we have identified key design elements related to the emotion by observing the design process of expert designers. Third, we examined the causal relation between the perceived emotion and designed elements. The results indicate that some design elements are more effective to produce certain feeling than others. This paper ends with limitations and implications of the study results.

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A Study on Teacher Education Programs on Teacher-Child Interaction (교사-유아 간 상호작용에 관한 교사교육 프로그램 연구 분석)

  • Kim, Soojung
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.8 no.4
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    • pp.647-654
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    • 2018
  • This study examines the literature regarding teacher-child interaction in the classroom, aiming to find ways to support child-care teachers in improving the quality of teacher-child interaction. The study selected studies exploring teacher-education programs that aim to support child-care teachers in interacting with their children in the classroom in a quality manner. The selected studies were analyzed, by focusing on how the study proposes ways to support child-care teachers in interacting with their children in a quality manner. The results of previous studies are as follows: 1) the literature tends to focus on teachers' language interaction with their children in the classroom; 2) the literature tends to apply a variety of observation tools (or coding schemes) to measure teacher-child interaction in child-care settings; 3) the literature prefers individualized approaches such as mentoring or consulting as ways of supporting child-care teachers in interacting with their children in a quality manner; and 4) the literature aims in general to improve teachers' self-reflection skills.

LRM's Characterics and Applications Plan Through Comparing with FRBR (FRBR과 비교를 통한 LRM의 특징 및 적용방안)

  • Lee, Mihwa
    • Journal of Korean Library and Information Science Society
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    • v.53 no.2
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    • pp.355-375
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    • 2022
  • This study is to grasp LRM's feature and applications plan to reflect LRM to cataloging related standards and individual system through comparing and analyzing LRM with the FR model in terms of entities, attributes, and relationships. The application plan is suggested as follows. First, the entity can be extended by defining sub-entities of each entity in the standards and the individual system in order to reflect LRM, even though entities such as families, groups, identifiers, authorized access points, concepts, objects, events, agency and rules have been deleted in LRM. Second, the attribute should be subdivided in the standards and the individual system in order to apply LRM, though many attributes have been changed to relationships for linked data and decreased in LRM. In particular, more specific and detailed property names in the standards and the individual system should be clearly presented, and the vocabulary encoding scheme corresponding to each property should be also developed, since properties with similar functions or repetition in various entities, and material specific properties are generalized and integrated into comprehensive property names. Third, the relationship should be extended through newly declaring the refinement or subtype of the relationship and considering a multi-level relationship, since the relationship itself is general and abstract under increasing the number of relationships in comparing to the property. This study will be practically utilized in cataloging related standards and individual system for applying LRM.