• Title/Summary/Keyword: Daum

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Morphological disambiguation using Local Context (국소 문맥을 이용한 형태적 중의성 해소)

  • Lee, Chung-Hee;Yoon, Jun-Tae;Song, Man-Suk
    • Annual Conference on Human and Language Technology
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    • 2000.10d
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    • pp.48-55
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    • 2000
  • 본 논문은 국소문맥을 사용하여 만들어진 Decision List를 통해 단어의 형태적 중의성을 제거하는 방법을 기술한다. 최초 종자 연어(Seed Collocation)로 1차 Decision List를 만들어 실험 말뭉치에 적용하고 태깅된 결과를 자가 학습하는 반복과정에 의해 Decision List의 수행능력을 향상시킨다. 이 방법은 단어의 형태적 중의성 제거에 일정 거리의 연어가 가장 큰 영향을 끼친다는 직관에 바탕을 두며 사람의 추가적인 교정을 필요로 하지 않는 비교사 방식(대량의 원시 말뭉치에 기반한)에 의해 수행한다. 학습을 통해 얻어진 Decision List는 연세대 형태소 분석기인 MORANY의 형태소 분석 결과에 적용되어 태깅시 성능을 향상시킨다. 실험 말뭉치에 있는 중의성을 가진 12개의 단어들에 본 알고리즘을 적용하여 긍정적인 결과(90.61%)를 얻었다. 은닉 마르코프 모델의 바이그램(bigram) 모델과 비교하기 위하여 '들었다' 동사만을 가지고 실험하였는데 바이그램 모델의 태깅결과(72.61%)보다 뛰어난 결과 (94.25%)를 얻어서 본 모델이 형태적 중의성 해소에 유용함을 확인하였다.

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빅데이터 기반 대용량 시맨틱 웹 검색 기술 동향

  • Yun, Seok-Chan;Nam, Gung-Hyeon;Yang, Seong-Gwon;Kim, Hong-Gi
    • Information and Communications Magazine
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    • v.29 no.11
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    • pp.24-29
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    • 2012
  • 시맨틱 웹 기술은 웹의 초창기부터 다양한 연구와 표준이 개발되었지만 이를 활용한 데이터 서비스 분야는 그 역사에 비해 성공 사례가 부족한 것이 현실이다. 최근 웹 2.0을 시초로 링크드 데이터의 성장, 정부의 개방형 데이터 서비스, 소셜 웹 서비스의 등장으로 인해 웹의 구조적 데이터는 폭발적으로 성장해 왔으며, 대용량 시맨틱 웹 기반 서비스에 대한 요구와 연구가 진행되고 있다. 본 고에서는 킬러 애플리케이션으로서 기존 시맨틱 웹 기반 검색 기술의 문제점들을 알아보고 이를 해결하기 위해 최근 화두로 떠오르는 빅데이터(Big Data) 기술 요소인 하둡(Hadoop) 및 NoSQL을 활용하여 대용량 시맨틱 웹 데이터를 활용한 Daum의 영화/음악/인물 기반 의미 검색 및 의학 LOD를 기반한 검색 서비스 개발 사례를 제시한다. 이를 토대로 이종 모델 데이터간 연결 및 실시간 데이터 리비전 관리 등 한계점들을 살펴보고 향후 대용량 공공 데이터 활용을 위한 방향을 모색해 본다.

Optimization of Steel Box Girder Bridges using Approximate Reanalysis Technique (재해석 기법을 이용한 강상자형교의 최적설계)

  • Min, Dae-Hong;Yoon, Woo-Hyun;Chung, Jee-Seung;Yang, Sung-Don
    • Journal of the Korean Society of Safety
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    • v.26 no.4
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    • pp.80-86
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    • 2011
  • Structural optimization algorithm of steel box girder bridges using improved higher-order approximate reanalysis technique is proposed in this paper. The proposed approximation method is a generalization of the convex approximation method. The order of the approximate reanalysis for each function is analytically adjusted in the optimization process. This self-adjusted capability makes the approximate structural analysis values conservative enough to maintain the optimum design point of the approximate problem. The efficiency of proposed optimazation algorithm, compared with conventional algorithm, is successfully demonstrated in the steel box girder bridges. The efficiency and robustness of proposed algorithm is also demonstrated in practical steel box girder bridges.

Modeling Situation Information and Implementing Semantic Mashup Service in IoT Environment (IoT 환경에서 상황정보 모델링 및 시맨틱 매쉬업 서비스 구현)

  • Seok, Hyunseung;Kim, Jaeseong;Lee, Yongju
    • Proceedings of the Korea Information Processing Society Conference
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    • 2019.05a
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    • pp.727-730
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    • 2019
  • 본 연구에서는 시맨틱 기반의 상호운용성을 지원하는 Fiesta IoT 온톨로지 모델을 기반으로 Protégé에서 새로운 온톨로지를 추가하여 모델링을 하였다. 이를 통해 KT IoTMakers에서 Open API를 통해 받은 JSON 형태의 데이터를 Jena 프레임워크를 이용하여 RDF 데이터로 변환하였다. 또한, 변환된 RDF 데이터를 Fuseki 서버로 전송하여 저장했으며, SPARQL 질의를 통한 결과를 Daum Map API를 사용하여 웹으로 표현하였다. 이를 통해 사람들이 시맨틱 IoT 매쉬업 서비스를 쉽게 접근할 수 있는 기회를 제공하여 다양한 응용 가능성을 가진다.

User's Gaze Analysis for Improving Map Label Readability in Way-finding Situation

  • Moon, Seonggook;Hwang, Chul Sue
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.37 no.5
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    • pp.343-350
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    • 2019
  • Map labels are the most recognizable map elements using the human visual system because they are essentially a natural language. In this study, an experiment was conducted using an eye-tracker to objectively record and analyze the response of subjects regarding visual attention to map labels. A primary building object was identified by analyzing visit counts, average visit duration, fixation counts, and the average fixation duration of a subject's gaze for an area of interest acquired using the eye-tracker. The unmarked rate of map labels in Google map, Naver map, and Daum map was calculated. As a result, this rate exceeded fifty-one percent, with the lowest rate recorded for Google map. It is expected that the results of this study will contribute to an increase in the diversity of research in terms of the spatial cognition approach for map labels, which is more helpful to users than the existing body of work on methods of expression for labels.

Current Status of Development of Rendering Drawings Service for Mobile Indoor Location Based Service (모바일 옥내위치기반서비스를 위한 도면 출력 서비스 구현 현황 소개)

  • Yim, Jaegeol;Le, Thanh C.
    • Proceedings of the Korea Information Processing Society Conference
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    • 2012.04a
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    • pp.191-194
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    • 2012
  • Rendering maps is an essential feature of the user interface component of a location based service (LBS) system. However, a developer may not too much worry about implementing the rendering maps part of his or her system because there are quite a few publicly available libraries that provide all kinds of functions of manipulating maps. Google Maps, Yahoo Map, Naver Map, Daum Map, and so on are example sites that provide those libraries. Rendering drawings is to indoor LBS as rendering maps is to LBS. However, there is no such thing as Google Maps that provides libraries for rendering drawings. This paper introduces a few web services and a library that is useful in developing user interfaces of indoor LBS systems.

Exploring the Key Factors that Lead to Intentions to Use AI Fashion Curation Services through Big Data Analysis

  • Shin, Eunjung;Hwang, Ha Sung
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.16 no.2
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    • pp.676-691
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    • 2022
  • An increasing number of companies in the fashion industry are using AI curation services. The purpose of this study is to investigate perceptions of and intentions to use AI fashion curation services among customers by using text mining. To accomplish this goal, we collected a total of 34,190 online posts from two Korean portals, Naver and Daum. We conducted frequency analysis to identify the most frequently mentioned keywords using Textom. The analysis extracted "various," "good," "many," "right," and "new" at the highest frequency, indicating that consumers had positive perceptions of AI fashion curation services. In addition, we conducted a semantic network analysis with the top-50 most frequently used keywords, classifying customers' perceptions of AI fashion curation services into three groups: shopping, platform, and business profit. We also identified the factors that boost continuous use intentions: usability, usefulness, reliability, enjoyment, and personalization. We conclude this paper by discussing the theoretical and practical implications of these findings.

A Study on Gamification Consumer Perception Analysis Using Big Data

  • Se-won Jeon;Youn Ju Ahn;Gi-Hwan Ryu
    • International Journal of Advanced Culture Technology
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    • v.11 no.3
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    • pp.332-337
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    • 2023
  • The purpose of the study was to analyze consumers' perceptions of gamification. Based on the analyzed data, we would like to provide data by systematically organizing the concept, game elements, and mechanisms of gamification. Recently, gamification can be easily found around medical care, corporate marketing, and education. This study collected keywords from social media portal sites Naver, Daum, and Google from 2018 to 2023 using TEXTOM, a social media analysis tool. In this study, data were analyzed using text mining, semantic network analysis, and CONCOR analysis methods. Based on the collected data, we looked at the relevance and clusters related to gamification. The clusters were divided into a total of four clusters: 'Awareness of Gamification', 'Gamification Program', 'Future Technology of Gamification', and 'Use of Gamification'. Through social media analysis, we want to investigate and identify consumers' perceptions of gamification use, and check market and consumer perceptions to make up for the shortcomings. Through this, we intend to develop a plan to utilize gamification.

Construction of Digital Archives System based on HTML5 using Open API from On-line (온라인에서 제공되는 Open API를 활용한 HTML5 기반의 디지털 아카이브즈 시스템 구축)

  • Jo, Hoon;Lee, Jung-Song;Park, Soon-Cheol
    • Proceedings of the Korea Information Processing Society Conference
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    • 2011.11a
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    • pp.560-563
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    • 2011
  • 본 논문은 온라인상에서 제공되는 다양한 정보와 기술을 사용하여 20세기민중생활사 연구단의 디지털아카이브즈 시스템을 보다 효율적으로 사용하기 위한 방안을 제시하였다. 자료 관리를 위하여 기본적으로 더블린 코어 표준에 기초한 20세기민중생활사 디지털 아카이브즈 시스템 데이터베이스를 사용하였으며, Daum과 Naver에서 제공하는 Open API를 통하여 디지털 아카이브즈 데이터를 보다 현장감 있게 사용할 수 있도록 하였다.

Effects of Comment History Disclosure on Portal News Comments (댓글이력 공개가 포털 뉴스 댓글에 미치는 영향)

  • Sehan Lee;Youngsok Bang
    • Information Systems Review
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    • v.23 no.4
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    • pp.147-163
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    • 2021
  • We investigate the effect of comment history disclosure on portal news comments. Specifically, based on the scraped news comments from Naver and Daum (two leading Korean news portals), we employ the difference-in-differences estimator to empirically tease out the impact of the comment history disclosure policy implemented in Naver on its news comments. Our result shows that the policy implementation significantly increased the length and the positiveness of online news comments but did not affect their quality.