• Proceedings of the Korean Information Science Society Conference
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• 2002.10c
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• pp.163-165
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• 2002

인터넷의 발전으로 단순한 co-browsing을 넘어선 다기능 협업시스템이 필요하게 되었다. 이러한 점에서 웹 저작 도구인 위키 시스템은 연구원들 간의 능동적이고 적극적인 정보교환을 위한 효과적인 시스템이다. 하지만 정보량이 증가함에 따라 공통된 주제의 문서가 다중 생성됨으로써 정보 공유의 힘이 분산되는 문제점을 발생시킨다. 본 논문에서는 파서(parser), 문서분류 시스템, 유사성측정 시스템으로 구성된 협업문서 생성제어 시스템을 제안한다. 결과적으로 협업문서 생성제어 시스템은 협업문서 생성을 제어함으로써 각 분야의 전문가들의 원활한 정보 공유와 지식창출을 효과적으로 할 수 있다.

• 한국HCI학회:학술대회논문집
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• 2006.02a
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• pp.711-716
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• 2006

Since the introduction of digital camera to the mass market, the number of digital photos owned by an individual is growing at an alarming rate. This phenomenon naturally leads to the issues of difficulties while searching and browsing in the personal digital photo archive. Traditional approach typically involves content-based image retrieval using computer vision algorithms. However, due to the performance limitations of these algorithms, at least on the casual digital photos taken by non-professional photographers, more recent approaches are centered on time-based clustering algorithms, analyzing the shot times of photos. These time-based clustering algorithms are based on the insight that when these photos are clustered according to the shot-time similarity, we have "event clusters" that will help the user browse through her photo archive. It is also reported that one of the remaining problems with the time-based approach is that people perceive events in different scales. In this paper, we present an adaptive time-based clustering algorithm that exploits the usage history of digital photos in order to infer the user's preference on the event granularity. Experiments show significant performance improvements in the clustering accuracy.

• Journal of KIISE:Computer Systems and Theory
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• v.36 no.2
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• pp.60-67
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• 2009

Analyzing protein-protein interactions(PPI) is an important task in bioinformatics as it can help in new drugs' discovery process. However, due to vast amount of PPI data and their complexity, efficient visualization of the data is still remained as a challenging problem. We have developed efficient and effective visualization system that integrates Gene Ontology(GO) and PPI network to provide better insights to scientists. To provide efficient data visualization, we have employed dynamic interactive graph drawing methods and context-based browsing strategy. In addition, quick and flexible cross-reference system between GO and PPI; LCA(Least Common Ancestor) finding for GO; and etc are supported as special features. In terms of interface, our visualization system provides two separate graphical windows side-by-side for GO graphs and PPI network, and also provides cross-reference functions between them.

• The Journal of the Korea Contents Association
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• v.9 no.10
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• pp.110-121
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• 2009

In this paper, we propose the new method that offer detailed-information through relax the system memory limitation about 3D model to user. That method based on making LOD(Level of Detail) model from huge 3D data of structure cultural assets. In our method as transformed AOSP algorithm, first of all it create the hierarchical structure space about 3D data, and create the LOD model by surface simplification. Then it extract the ROI(Region of Interest) of user in simplified LOD model, and then do rendering by original model and same surface detailed-information after process the local detailed in extracted region. To evaluate the proposed method, we have some experiment by using the precise 3D scan data of structure cultural assets. Our method can offer the detailed-information same as exist method, and moreover 45% reduced consumption of memory experimentally by forming mesh structure same as ROI of simplified LOD model. So we can check the huge structure cultural assets particularly in general computer environment.

• Journal of KIISE:Computing Practices and Letters
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• v.12 no.3
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• pp.183-191
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• 2006

As genetic research is getting more active, data construction of genes are needed in the field of biology. Therefore, Gene Ontology Consortium has constructed genetic information by OWL, which is Ontology description language published by W3C. However, previous browsers for Gene Ontology only support simple searching mechanisms based on keyword, tree, and graph, but it is not able to search high quality information considering various relationships. In this paper, we suggest browsing technique which integratesvarious searching methods to support researchers who are doing actually experiment in biology field. Also, instead of typing a query, we propose querv generation technique which constructs query while browsing and query translation technique which translate generated query into SeRQL query It is convenient for user and enables user to obtain high quality information. And by this GO Guide browser, it has been shown that the information of Gene Ontology could be used efficiently.

• Journal of Korea Multimedia Society
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• v.3 no.1
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• pp.1-13
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• 2000

While various types of information can be mixed in a continuous video stream without any cleat boundary, the meaning of a video scene can be interpreted by multiple levels of abstraction, and its description can be varied among different users. Therefore, for the content-based retrieval in video data it is important for a user to be able to describe a scene flexibly while the description given by different users should be maintained consistently This paper proposes an effective way to represent the different types of video information in conventional database models such as the relational and object-oriented models. Flexibly defined attributes and their values are organized as tree-structured dictionaries while the description of video data is stored in a fixed database schema. We also introduce several browsing methods to assist a user. The dictionary browser simplifies the annotation process as well as the querying process of a user while the result browser can help a user analyze the results of a query in terms of various combinations of Query conditions.

• 한국HCI학회:학술대회논문집
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• 2007.02a
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• pp.16-24
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• 2007

모바일 폰은 최근 관심의 대상이 되고 있는 사용자 제작 컨텐츠 (User-Created Content: UCC)의 생산과 공유를 위한 중요한 수단이다. 또한 HSDPA나 4G와 같은 차세대 이동통신 기술은Flickr나 YouTube 등의 웹 사이트에서 제공되고 있는 UCC 서비스가 모바일 폰을 통해서도 더욱 활발히 이용될 수 있는 가능성을 제시하고 있다. 그러나 모바일 폰이 가지고 있는 작은 화면 크기와 불편한 입력 장치라는 기본적인 한계는 모바일 UCC 서비스의 성공에 큰 장애 요인으로 작용할 수 있다. 따라서 본 연구는 정보 구조 (Information Structure) 및 정보 시각화 (Information Visualization)와 관련된 기존 이론 및 연구들을 기반으로 4가지 다른 모바일 폰 인터페이스들을 개발하고, 사용자들의 모바일 폰을 통한 탐색적 UCC 서비스 사용을 지원하는데 어떠한 인터페이스가 더 적합한지 실험 방법론을 통해 검증하는 것을 기본 목적으로 한다. 본 연구를 위하여 개발된 인터페이스들은 컨텐츠 구조의 관점에서 폴더 기반 계층 구조 (Folder-Based Hierarchical Structure)이나 태그 기반 네트워크 구조 (Tag-Based Network Structure)를 가지고 있으며, 컨텐츠 시각화의 관점에서는 고정 버튼 (Fixed Buttons)이나 멀티 디스플레이 버튼 (Multi-Display Buttons)를 가지고 있다. 66명의 실험 참가자들을 대상으로 한 실험 결과, 사용자들은 탐험 지향적 탐색 과업 (Exploratory Browsing)에서 태그 기반 네트워크 구조 또는 멀티 디스플레이 버튼이 제공된 모바일 인터페이스에 대하여 상대적으로 더 높은 유용성, 즐거움, 만족도, 향후 사용의도 등을 나타내었다.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.42 no.5
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• pp.79-86
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• 2005

The Qis visualizational spreadsheet environment is shown to be extremely effective in supporting the organized visualization of multi-dimensional data sets. The Qis consists of the reconfigurative 2D arrangement of spreadsheet elements at run time and each spreadsheet element has a novel framestack. As the feature, it supports 3D data structure of each element on the Qis. It enables the visualization spreadsheet to effectively manage, rapidly organize, and compactly encapsulate multi-dimensional data sets for visualization. Using several experiments with scientific users, the Qis has been demonstrated to be a highly interactive visual browsing tool for the analysis of multidimensional data, displaying 2D and 3D graphics, and rendering in each frame of the spreadsheet.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.1
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• pp.1-11
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• 2017

Recently that require digital signatures handwritten for personal use customer information and agree to the Terms of Service agreement or a general sign up. Signature system including an existing handwritten signature are a problem, which may be a platform-dependent, as well as the environment in which to perform the signature vary according to device Status of presence because it is being utilized is implemented on the service platform itself within each company. In this paper, we designed and implemented an integrated system handwritten signature as possible using a cross-browser way to store the handwritten two-dimensional coordinates based on the jQuery it is interspecific directly integrated browser environment. iOS, Android, was tested in an integrated web browser in heterogeneous environments, including PC, it was confirmed that all handwritten signature function is working properly.

• The Transactions of the Korea Information Processing Society
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• v.6 no.8
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• pp.2008-2019
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• 1999

As computing technologies are rapidly progressed and widely used, the needs of high quality information have been increased. To satisfy these needs, it is essential to develop a system which can provide an efficient storing, managing and retrieving mechanism of complex multimedia data, esp. video data. In this paper, we propose a metadata model which can support content-based retrieval of video data. And we design and implement an integrated user interface for querying and browser for content-based retrieval in video database which can efficiently access and browse the video clip that user want to see. Proposed query processor and browser can support various user queries by integrating image feature, spatial temporal feature and annotation. Our system supports structure browsing of retrieved result, so users can more exactly and efficiently access relevant video clip. Without browsing the whole video clip, users can know the contents of video by seeing the storyboard. This storyboard facility makes users know more quickly the content of video clip.