• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.419-420
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• 2022

본 논문에서는 외출 시 날씨 때문에 무엇을 입을지 고민하는 사용자에게 편리함을 제공하고 사용자의 만족도를 높이기 위해 '날씨별 맞춤 정보 제공 날씨도우미'라는 주제로 연구를 진행하였다. 오픈 API를 이용하여 지역별 다양한 날씨 정보를 보여주고 기온별 옷차림과 지역 주변의 맛집을 추천하는 기능을 구현하였다. 날씨 도우미는 단순히 날씨 정보만을 제공하는 것이 아니라 날씨별 적합한 옷차림을 추천해준다. 사용자는 날씨도우미를 통해 외출 시 옷차림을 고르는 데 소요되는 시간을 최소한으로 줄일 수 있고, 옷을 고르면서 발생하는 스트레스를 줄일 수 있다. 또한, 사용자는 오늘의 날씨 정보와 미래의 날씨 예측 정보를 쉽게 확인할 수 있으며, 지역검색을 통해 원하는 지역의 날씨 정보를 손쉽게 확인하고, 해당 지역 주변의 맛집을 추천받을 수 있다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.26 no.9
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• pp.1320-1329
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• 2022

Currently, advanced national research network groups are continuously conducting R&D for the requirement to provide SDN/NFV-based network automation and intelligence technology for R&E users. In addition, the requirement for providing large-scale data transmission with the high performance networking facility, compared to general network environments, is gradually increasing in the advanced national research networks. Accordingly, in this paper, we propose an open API-based virtual network provisioning automation platform for large data transmission researched and developed to respond to the networking requirements of the national research network and present the implementation results. The platform includes the KREONET-S VDN system that provides SDN-based network virtualization technology, and the Kubernetes system that provides container-oriented server virtualization technology, and the Globus Online, a high-performance data transmission system. In this paper, the environment configurations, the system implemetation results for the interworking between the heterogeneous systems, and the automated virtual network provisioning implementation results are presented.

• Journal of Korea Society of Industrial Information Systems
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• v.14 no.5
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• pp.11-18
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• 2009

Ajax based on Java Script receives attention as an alternative to ActiveX technology. Most portal sites in korea show a tendency to reopen existing services by combining the technology, because it supports most web browsers, and has the advantages of such a brilliant interface, excellent speed, and traffic reduction through asynchronous interaction. This paper modeled and implemented a multilingual meta-search service using the Ajax and open APIs provided by international famous sites. First, a Korean query is translated into one of the language of 54 countries around the world by Google translation API, and then the translated result is used to search the information of the social web sites such as Flickr, Youtube, Daum, and Naver. Searched results are displayed fast by dynamic loading of portion of the screen using Ajax. Our system can reduce server traffic and per-packet communications charges by preventing redundant transmission of unnecessary information.

• Spatial Information Research
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• v.18 no.4
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• pp.141-149
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• 2010

One of recent trends in Web-based GIS is the system development using FOSS (Free and Open Source Software). Open Source software is independent from the technologies of commercial software and can increase the reusability and extensibility of existing systems. In this study, we developed a Web-based GIS for interactive visualization of geographic information using Google Earth and spatial DBMS(database management system). Google Earth Plug-in and Google Earth API(application programming interface) were used to embed a geo-browser in the Web browser. In order to integrate the Google Earth with a spatial DBMS, we implemented a KML(Keyhole Markup Language) generator for transmitting server-side data according to user's query and converting the data to a variety of KML for geovisualization on the Web. Our prototype system was tested using time-series of LAI(leaf area index), forest map, and crop yield statistics. The demonstration included the geovisualization of raster and vector data in the form of an animated map and a 3-D choropleth map. We anticipate our KML generator and system framework will be extended to a more comprehensive geospatial analysis system on the Web.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.595-597
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• 2019

DCU챗봇은 카카오 i 오픈빌더 API를 활용하여 24시간 어디서든 카카오톡이 설치된 스마트폰만 있다면 대구가톨릭대학교의 모든 정보를 얻을 수 있는 챗봇이다. 이 챗봇은, 카카오톡 채널을 통해 친구추가 후 이용 가능하며, Node.js와 카카오 i 오픈빌더 API를 통하여 대구가톨릭대학교의 학식, 스쿨버스, 학교 주변 버스정류장의 실시간 버스 도착 정보, 날씨 & 미세먼지, 학사일정, 교내 전화번호, 공지사항, 지도 등의 기능을 네이버와 기상청, 대구 시내버스 정보를 크롤링 후 가공하여 서비스를 제공한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.01a
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• pp.454-455
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• 2019

본 논문에서는 표준 기반 사물인터넷 (IoT: Internet of Things) 플랫폼을 활용한 음성 제어 시스템을 구현하고 그 성능을 검증한다. 사물인터넷 산업 표준인 원엠투엠 (oneM2M) 오픈 소스 플랫폼을 활용하여 음성으로 댁내 기기를 제어할 수 있는 프로토타입 시스템을 구현하였다. 음성 기반 제어를 위해 구글의 Speech-to-Text API를 활용하고 오픈 소스 하드웨어에 원엠투엠 플랫폼을 탑재하여 어디서든지 서버 플랫폼에 연결된 댁내 가전기기들을 제어할 수 있음을 보였다. 본 논문에서 구현한 시스템을 통해 표준화된 오픈 소스 플랫폼과 클라우드 음성 인식 API를 활용하여 확장성과 연결성을 갖춘 커넥티드 홈을 구현할 수 있음을 알 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2018.05a
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• pp.509-511
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• 2018

본 논문은 링크드 오픈 데이터(Linked Open Data)의 일종인 DBpedia 개체를 자연어 기반으로 검색하는 애플리케이션 개발에 관한 논문이다. Google Cloud Natural Language API를 이용하여 자연어 입력을 분석하고, 이를 바탕으로 RDF(Resource Description Framework) 검색 언어인 스파클(Sparql) 질의 문장을 작성하여 결과를 웹 형식으로 반환해준다. 이를 통해 비문가도 손쉽게 링크드 오픈 데이터에 접근할 수 있는 기회를 제공하며 다양한 응용 가능성을 가진다.

• Journal of IKEEE
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• v.19 no.2
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• pp.186-192
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• 2015

This paper proposes an automatic generation technology of test case based on API in source code for software's quality improvement. The proposed technology is comprised of four processes which are analyzing source code by using the Doxygen open source tool, defining API specification by using analyzed results, creating test design, generating a test case by adapting Pairwise test technology. Analyzing source code by using the Doxygen open source tool is the phase in which API information in source code such as the API name, input parameter and return parameter are extracted. Defined API specification by using analyzed results is the phase where API informations, which is needed to generate test case, are defined as a form of database by SQLite database on the basis of extracted API information. Creating test design is the phase in which the scenario is designed in order to be composed as database by defining threshold of input and return parameters and setting limitations based on the defined API. Generating a test case by adapting Pairwise test technique is the phase where real test cases are created and changed into database by adapting Pairwise technique on the base of test design information. To evaluate the efficiency of proposed technology, the research was conducted by begin compared to specification based test case creation. The result shows wider test coverage which means the more cases were created in the similar duration of time. The reduction of manpower and time for developing products is expected by changing the process of quality improving in software developing from man-powered handwork system into automatic test case generation based on API of source code.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2009.05a
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• pp.208-211
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• 2009

본 논문은 구글(Google), 워드넷(WordNet)과 같이 공개된 웹 자원과 리소스를 이용한 비교사학습(Unsupervised learning) 방법을 제안하여 단어 의미의 중의성 문제를 해결하고자 한다. 구글 검색 API를 이용하여 단어의 확장된 근접 문맥정보를 추출하고, 워드넷의 계층체계와 synset을 이용하여 단어 의미 구분정보를 자동 추출한 후, 추출된 정보 간 유사도 계산을 통해 중의성을 갖는 단어의 의미를 결정한다.

• Journal of Convergence for Information Technology
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• v.10 no.4
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• pp.1-10
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• 2020

The performance of the personalized product recommendation system for offline shopping malls is poor compared with the one using online environment information since it is difficult to obtain visitors' characteristic information. In this paper, a mobile robot platform is suggested capable of recommending personalized advertisement using customers' sex and age information provided by Face API of MS Azure Cloud service. The performance of the developed robot is verified through locomotion experiments, and the performance of API used for our robot is tested using sampled images from open Asian FAce Dataset (AFAD). The developed robot could be effective in marketing by providing personalized advertisements at offline shopping malls.