• 제목/요약/키워드: Keywords Analysis

검색결과 1,474건 처리시간 0.031초

K개의 점 데이터를 포함하는 최소MBR 탐색 (Finding the Minimum MBRs Embedding K Points)

  • 김건우;김영훈
    • 정보과학회 논문지
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    • 제44권1호
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    • pp.71-77
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    • 2017
  • 스마트폰과 같은 GPS센서가 장착된 모바일 기기가 널리 보급되고 있다. 이러한 추세에 따라 트위터나 페이스북과 같은 소셜 미디어에서 GEO태그가 된 메시지 (즉, GPS 위치를 갖는 멀티미디어 메시지)를 손쉽게 작성할 수 있게 되었고 게시자의 위치정보를 포함하는 공간데이터가 급증하고 있다. 그러나 이러한 공간데이터에서 항상 위치 정보와 게시글 내용이 명시적인 연관성을 갖고 있지는 않다. 때문에 키워드와 위치정보 분포의 관련성에 따라 검색결과를 재구성할 필요가 있다. 우리는 크기가 가장 작은 k개의 점 데이터를 포함하는 최소경계사각형(MBR)을 찾음으로써 데이터가 가장 밀집된 사각형을 찾으며, 이는 위치 검색시스템에서 유용하게 사용될 수 있다. 본 논문은 최소경계사각형과 같이 거리가 가까운 2차원 공간데이터의 묶음을 찾기 위해 효율적인 알고리즘을 제안하였고 합성데이터와 실제 데이터를 이용한 실험을 통해 알고리즘의 효율성을 검증하였다.

온라인 목록 검색 행태에 관한 연구-LINNET 시스템의 Transaction log 분석을 중심으로-

  • 윤구호;심병규
    • 한국도서관정보학회지
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    • 제21권
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    • pp.253-289
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    • 1994
  • The purpose of this study is about the search pattern of LINNET (Library Information Network System) OPAC users by transaction log, maintained by POSTECH(Pohang University of Science and Technology) Central Library, to provide feedback information of OPAC system design. The results of this study are as follows. First, for the period of this analysis, there were totally 11, 218 log-ins, 40, 627 transaction logs and 3.62 retrievals per a log-in. Title keyword was the most frequently used, but accession number, bibliographic control number or call number was very infrequently used. Second, 47.02% of OPAC, searches resulted in zero retrievals. Bibliographic control number was the least successful search. User displayed 2.01% full information and 64.27% local information per full information. Third, special or advanced retrieval features are very infrequently used. Only 22.67% of the searches used right truncation and 0.71% used the qualifier. Only 1 boolean operator was used in every 22 retrievals. The most frequently used operator is 'and (&)' with title keywords. But 'bibliographical control number (N) and accessionnumber (R) are not used at all with any operators. The causes of search failure are as follows. 1. The item was not used in the database. (15, 764 times : 79.42%). 2. The wrong search key was used. (3, 761 times : 18.95%) 3. The senseless string (garbage) was entered. (324 times : 1.63%) On the basis of these results, some recommendations are suggested to improve the search success rate as follows. First, a n.0, ppropriate user education and online help function let users retrieve LINNET OPAC more efficiently. Second, several corrections of retrieval software will decrease the search failure rate. Third, system offers right truncation by default to every search term. This methods will increase success rate but should considered carefully. By a n.0, pplying this method, the number of hit can be overnumbered, and system overhead can be occurred. Fourth, system offers special boolean operator by default to every keyword retrieval when user enters more than two words at a time. Fifth, system assists searchers to overcome the wrong typing of selecting key by automatic korean/english mode change.

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한글화된 균형 평가도구들의 신뢰도와 타당도 분석 (The Analysis on the Reliability and Validity of Korean-Version Balance Assessment Tools)

  • 장호영;이정훈;이석민
    • 대한물리의학회지
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    • 제12권4호
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    • pp.139-146
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    • 2017
  • PURPOSE: The purpose of this study was to systematically analyze the reliability and validity of the Korean-version of the balance assessment tools. METHODS: Two reviewers of this study independently evaluated the titles of articles and abstracts of studies published until December 2016 through electronic databases (RISS, NDSL, KISS, DBpia) using the keywords "Balance or posture or postural control or postural stability", "Test or assessment or measurement or outcome measure or assessment tool or measurement tool", "Korean version", "Reliability" and "Validity". Regarding the questions considered suitable for the purpose of this study, consensus was reached after reading the full text. Selecting journals suitable for the purpose of the study, they were analyzed as data. RESULTS: The reviewers selected nine papers suitable for the purpose of this study, and Korean-version of the balance assessment tools, included the Berg Balance Scale (BBS), Activities-specific Balance Confidence (ABC) scale, Postural Assessment Scale for Stroke (PASS), Motor Assessment Scale (MAS), Trunk Impairment Scale (TIS), Falls Efficacy Scale (FES), Tinetti-Balance scale, Fullerton Advanced Balance (FAB) scale, and Function In Sitting Test (FIST). Our study showed that the reliability and validity of the Korean-version of the balance assessment tools were high. CONCLUSION: The Korean-version of the balance assessment tools with high reliability and validity would enable physical therapists to make a more accurate evaluation of balance.

한약-양약 병용 투여에 관한 논문 동향 분석 (Analysis of Studies on Combined Medication of the Oriental and the Western Medicines)

  • 김진현;김철;김상균;장현철;한정민;예상준;송미영
    • 대한예방한의학회지
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    • 제13권3호
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    • pp.1-18
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    • 2009
  • Objectives : In this study, we survey papers about the combined therapy of oriental medicine and western medicine in oriental medicine viewpoint. Methods : First, we collected research papers on combined treatment, and we found 70 papers in the two internet sites, 'OASIS' and 'KISTI', using the keywords 'combined treatment', 'collaborated diagnosis', 'oriental-western medicine', and 'western-oriental medicine'. Then we analyzed them according to year, oriental-western medicine, diseases, research methods and subjects. Results & Conclusions : Researches for combined therapy had some problems as follows : First, studies have been made only for limited diseases like cancer, infection, stroke, etc. Second, methods of research are also limited. Some methods such as in vivo, in vitro and case-report are used repeatedly. Third, only the positive aspects of the combined therapy are proposed. We don't find the side effects of the combined therapy at all. To solve these problems, more objective and balanced studies such as RCT for various diseases should be performed.

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청소년 건강관련 공개자료 접근 및 활용에 관한 고찰 (Access to and Utilization of the Open Source Data-related to Adolescent Health)

  • 이재은;성정혜;이원재;문인옥
    • 한국학교ㆍ지역보건교육학회지
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    • 제11권1호
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    • pp.67-78
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    • 2010
  • Background & Objectives: Current trend is that funding agencies require investigators to share their data with others. However, there is limited guidance how to access and utilize the shared data. We sought to determine what common data sharing practices in U.S.A. are, what data-related to adolescent health are freely available, and how we deal with the large dataset adopting the complex study design. Methods: The study included only research data-related to adolescent health which was collected in USA and unlimitedly accessible through the internet. Only the raw data, not aggregated, was considered for the study. Major keywords for web search were "adolescent", "children", "health", and "school". Results: Current approaches for public health data sharing lacked of common standards and varied largely due to the data's complex nature, large size, local expertise and internal procedures. Some common data sharing practices are unlimited access, formal screened access, restricted access, and informal exclusive access. The Inter-University Consortium for Political and Social Research and the Center for Disease Control and Prevention were the best data depository. "Data on the net" was search engine for the website providing data freely available. Six datasets related to adolescent health freely available were identified. The importance and methods of incorporating complex research design into analysis was discussed. Conclusion: There have been various attempts to standardize process for open access and open data using the information technology concept. However, it may not be easy for researchers to adapt themselves to this high technology. Therefore, guidance provided by this study may help researchers enhance the accessibility to and the utilization of the open source data.

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정보디자인형 광고의 커뮤니케이션 기법에 관한 연구 (Case Study for the Communication Method of Information Design Type Advertising)

  • 김종민;박한솔
    • 한국콘텐츠학회논문지
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    • 제17권11호
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    • pp.90-101
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    • 2017
  • 본 연구는 정보를 표현기법 삼아 소통되는 정보디자인형 광고의 정의와 유형에 대해 알아보고, 어떠한 특징이 있는지 알아보는데 그 목적이 있다. 연구 방법은 광고와 정보와의 관계를 시대적 이슈에 맞추어 고찰한 후, 정보디자인형 광고 샘플을 선정, 유형별로 연구하고 이를 전문가 그룹과 비전문가 그룹 대상으로 심층 분석하여 그 특징을 알아본다. 그 결과, 정보디자인형 광고는 1인 미디어 시대와 정보화 사회에 기인하여 출몰하는 정보디자인 형식을 갖춘 광고로, 이슈가 될만한 정보 혹은 데이터를 정보디자인 기법을 이용하여 시각화 한 후, 이를 표현기법 삼아 소비자의 관심을 끄는 형식의 광고임을 알 수 있었으며, 매뉴얼 정보디자인형 광고, 아이덴티티 정보디자인형 광고, 데이터 시각화 정보디자인형 광고로 구분할 수 있었다. 커뮤니케이션 키워드는 Attention, Curation, Study가 있다. 이 중 Curation은 Share에서 발전된 개념으로, 공유 행위를 통한 소셜네트워크상에서의 지식 소장, 선점, 과시를 의미한다. 과장과 허위가 아닌, 신뢰를 기반으로 하는 정보디자인형 광고는 방대한 양의 정보나 어려운 내용을 쉽게 치환, 이해를 돕는 과정을 통해 흥미와 공감대를 형성하며 필요한 지식을 제공하고 자연스럽게 제품에 대한 학습을 유도한다.

Clinical Dental Hygienists' Experience of the Prevention Based Incremental Oral Health Care: Applying Focus Group Interviews

  • Bae, Soo-Myoung;Lee, Hyo-Jin;Shin, Bo-Mi
    • 치위생과학회지
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    • 제20권2호
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    • pp.107-117
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    • 2020
  • Background: In this study, we tried to comprehensively explore clinical dental hygienist's experience of a prevention-based incremental oral health care program, which was pilot-operated by dental clinics, define prevention-based incremental oral health care as experienced in the field, and identify factors to be considered. Methods: This study conducted a focus group interview with five dental hygienists who participated in an ongoing oral management pilot project in 2016. The interview was conducted by a researcher, and the co-research team attended as progress assistants and recorded characteristics of the participants, main dictations, and non-verbal characteristics. All interviews were recorded and underwent thematic analysis to examine the questions of the study as the main axis. Results: As a result of the study, 65 meaningful statements were extracted by code, integrated into 24 sub-categories, and structured into 11 categories. Finally, four keywords were drawn: characteristics, facilitating factors, conflicting factors, and improvement measures for prevention-based incremental oral health care. Regarding prevention-based incremental oral health care in dental clinics, dental hygienists were highly aware of the physical and mental burdens of personalized treatment and education for each individual. They were responsible for the patient and for facilitating changes in the behavior of the client, leading to professional satisfaction. The dental team's cooperation and supportive attitude were found essential to continue oral health care in the dental clinic. Conclusion: Through dental team-based treatment philosophy sharing and collaboration, it is possible to provide prevention-based incremental oral health care in dental clinics. In future, it is necessary to develop a system for establishing a sustainable preventative management system for public health promotion.

간호단위의 팀 효과성에 대한 고찰 (A Literature Review of Team Effectiveness on Hospital Nursing Units)

  • 김세영;김종경;정면숙;김은경;유선주
    • 간호행정학회지
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    • 제23권1호
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    • pp.18-31
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    • 2017
  • Purpose: The purpose of this study was to analyze literature related to nursing team effectiveness and to summarize the definition variables included, measurement tools, and findings. Basic data on operation and research for team effectiveness in nursing units was sought. Methods: A literature search was performed to identify all studies published between 2003 and 2016 from periodicals indexed in PUBMED, CINAHL, SCIENCE DIRECT, RISS, KISS, and NAL databases. The following keywords were used in the search: 'team effectiveness', 'nurse', 'nursing', and 'hospital'. Ten studies were analyzed. Results: The analysis included domestic and international literature on nursing team effectiveness. The foreign literature included studies of various organizations including nurses, use of various research tools, leadership programs and/or new nursing delivery systems. In the Korean studies, most of the research on team effectiveness surveyed nurses on team satisfaction, team commitment, and team performance in general nursing units, operating rooms, and intensive care units. Conclusion: The findings show the necessity to develop a definition of team effectiveness that can be accepted comprehensively in nursing organizations in Korea. The definition should reflect team effectiveness that includes all cooperating units not only nurses of the nursing unit but also all other related health care teams.

빅데이터 분석을 활용한 가짜 리뷰 필터링 시스템 ADDAVICHI (Development of Filtering System ADDAVICHI for Fake Reviews using Big Data Analysis)

  • 정다비치;노영주
    • 한국인터넷방송통신학회논문지
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    • 제19권6호
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    • pp.1-8
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    • 2019
  • 최근 '바이럴 마케팅' 으로 인해서 홍보에만 치중하는 블로그 게시물 등으로 인해 소비자의 불신이 깊어졌다. 또한, 이용후기를 거짓으로 작성하거나, 과장 확대하는 등의 마케팅 사업은 신문이나 TV 광고에 비해 가격이 저렴하면서도 효과가 커 각광받는 사업 중 하나로서 광고비 규모는 2016년 기준 '3조 3941억'으로 주요 광고수단으로 자리잡고 있다. 이러한 '바이럴 마케팅'으로부터 정보를 걸러주는 도구가 필요한 인터넷 환경이 되었다. 본 논문에서 제시하는 가짜 리뷰 필터링 어플리케이션 ADDAVICHI는 사용자가 '이벤트', '맛집' 등의 컨텐츠를 검색하면 블로그 키워등, 총 검색수, 신뢰도, 만족도 등을 추출하고 분석하여 제시한다. 신뢰도는 블로그에 있는 광고게시물 수와, 전체 게시물 수를 보여주고, 만족도는 신뢰도에서 걸러진 청정 게시물을 긍정 게시물과 부정게시물로 나눠서 보여준다. 마지막으로 키워드는 긍정 게시물에서 나온 리뷰 상위 세 단어 리스트를 보여준다. 이러한 방법으로 사용자가 광고 글로부터 벗어나서 정보를 해석할 수 있도록 지원한다.

기업의 해외 진출 전략 연구 동향 (A Study on Trend of Overseas Expansion Strategy Research)

  • 서동필;김범석
    • 한국융합학회논문지
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    • 제11권1호
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    • pp.279-284
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    • 2020
  • 기술의 발전은 많은 변화를 가져오고 있다. 한국의 경제성장과 더불어 국내 기업들이 과거와는 다르게 해외로의 진출이 활발해지고 있다. 최근에는 한류에 힘입어 동남아 시장을 중심으로 대기업 외에도 많은 중소 및 중견기업들이 진출하고 있다. 본 연구에서는 기업의 해외 진출 전략 동향을 파악하고자, 외국의 학술 데이터베이스인 scopus 활용하였다. 해외진출 전략이라는 단어를 제목으로 검색을 하고 이를 통해 총 153개의 논문의 초록을 확보하였다. 확보된 초록 논문을 전처리를 통해 분석에 가능한 데이터로 만들고 KoNLP를 활용하여 분석을 수행하였다. 분석결과 중요한 키워드가 10개 도출이 되었다. 본 연구의 결과는 기업들이 해외 진출에 대한 연구 동향을 파악하는데 목적이 있으며, 이를 통해 연구자들에게 해외 진출 전략의 동향을 제공하는데 그 목적이 있다. 이 연구는 향후 해외진출 전략에 대한 연구를 위한 가이드라인을 제공할 것으로 기대된다.