• 제목/요약/키워드: knowledge database

검색결과 987건 처리시간 0.028초

대용량 스트리밍 센서데이터 환경에서 RDFS 규칙기반 병렬추론 기법 (RDFS Rule based Parallel Reasoning Scheme for Large-Scale Streaming Sensor Data)

  • 권순현;박영택
    • 정보과학회 논문지
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    • 제41권9호
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    • pp.686-698
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    • 2014
  • 최근 스마트폰의 폭발적인 보급, IoT와 클라우드 컴퓨팅 기술의 고도화, 그리고 IoT 디바이스의 보편화로 대용량 스트리밍 센싱데이터가 출현하였다. 또한 이를 기반으로 데이터의 공유와 매쉬업 통해 새로운 데이터의 가치를 창출하기 위한 요구사항의 증대로 대용량 스트리밍 센싱데이터 환경에서 시맨틱웹 기술과의 접목에 관한 연구가 활발히 진행되고 있다. 하지만 데이터의 대용량성 스트리밍성으로 인해 새로운 지식을 도출하기 위한 지식 추론분야에서 많은 이슈들에 직면하고 있다. 이러한 배경하에, 본 논문에서는 IoT 환경에서 발생하는 대용량 스트리밍 센싱데이터를 시맨틱웹 기술로 처리하여 서비스하기 위해 RDFS 규칙기반 병렬추론 기법을 제시한다. 제안된 기법에서는 기존의 규칙추론 알고리즘인 Rete 알고리즘을 하둡프레임워크 맵리듀스를 통해 병렬로 수행하고, 공용 스토리지로서 하둡 데이터베이스인 HBase를 사용하여 데이터를 공유한다. 이를 위한 시스템을 구현하고, 대용량 스트리밍 센싱데이터인 기상청 AWS 관측데이터를 이용하여 제시된 기법에 대한 성능평가를 진행하고, 이를 입증한다.

처방명 연계를 위한 유니코드 한자 기반의 한글-한자 매핑정보 구축에 관한 연구 (A study on Mapping the Unicode based Hangul-Hanja for prescription names in Korean Medicine)

  • 전병욱;김안나;김지영;오용택;김철;송미영;장현철
    • 한국한의학연구원논문집
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    • 제18권3호
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    • pp.133-139
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    • 2012
  • Objective : UMLS is 'Ontology' which establishes the database for medical terminology by gathering various medical vocabularies representing same fundamental concepts. Method : Although Chinese character are represented in the Chinese part of Korean Unicode system in a computer, writing of Chinese characters is vary depending on Chinese input systems and Chinese writers' levels of knowledge. As the result of this, representation of Chinese writing in a computer will be considerably different from an old Chinese document. Therefore, a meaningful relationship between digital Chinese terminology and translated Korean is necessary in order to build Ontology for Chinese medical terms from Oriental medical prescription in a computer system. Result : This research will present 1:1 mapping information among the Chinese characters used in the Oriental medical prescription with analysis of 'same character different sound' and 'same meaning different shape' in Chinese part of Unicode systems. Conclusions : Furthermore, the research will provide top-down menu of relationship between Chinese term and Korean term in medical prescription with assumption of that the Oriental medical prescription has its own unique meaning.

비만(肥滿) 변증 연구에 대한 고찰(국내 연구 중심으로) (The Review on the Study of Oriental Obesity Pattern Identification: Focused on Korean Research Papers)

  • 박원형;차윤엽;송윤경;박태용;김호준;정원석;황의형;신승우;장보형;고성규
    • 한방재활의학과학회지
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    • 제24권2호
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    • pp.83-93
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    • 2014
  • Objectives The aim of this study is to analyse research trends about oriental obesity pattern identification in Korea. Methods We searched the papers with key words of 'obesity' and 'Pattern identification', 'Syndrom differentiation' in Korean database (Korean traditional knowledge portal, KISS, NDSL, DBPIA, KMBASE, Journal of Korean Medicine Rehabilitation, Journal of Korean Medicine for Obesity Research). We classified the papers by year and content. Results We reviewed 28 searched papers. Papers were published between 1992 and 2012. More than half of the total papers were published since 2008. There are 5 studies that focus on development and improvement of oriental obesity pattern identification questionnaire. 9 studies are research about using oriental obesity pattern identification questionnaire. 7 studies are research about Type of oriental obesity pattern identification. 4 studies are literature review of oriental obesity pattern identification. Other studies related to oriental obesity pattern identification are three. Conclusions To improve application and objectification about oriental obesity pattern identification, more clinical and oriental obesity pattern identification questionnaire studies are needed.

DNA Repair Gene Polymorphisms Do Not Predict Response to Radiotherapy-Based Multimodality Treatment of Patients with Rectal Cancer: a Meta-analysis

  • Guo, Cheng-Xian;Yang, Guo-Ping;Pei, Qi;Yin, Ji-Ye;Tan, Hong-Yi;Yuan, Hong
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권2호
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    • pp.713-718
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    • 2015
  • Background: A number of association studies have been carried out to investigate the relationship between genetic polymorphisms in DNA repair genes and response to radiotherapy-based multimodality treatment of patients with rectal cancer. However, their conclusions were inconsistent. The objective of the present study was to assess the role of DNA repair gene genetic polymorphisms in predicting genetic biomarkers of the response in rectal cancer patients treated with neoadjuvant chemoradiation. Materials and Methods: Studies were retrieved by searching the PubMed database, Cochrane Library, Embase, and ISI Web of Knowledge. We conducted a meta-analysis to evaluate the association between genetic polymorphisms and the response in rectal cancer treated with neoadjuvant chemoradiation by checking odds ratios (ORs) and 95% confidence intervals (CIs). Results: Data were extracted from 5 clinical studies for this meta-analysis. The results showed that XRCC1 RS25487, XRCC1 RS179978, XRCC3 RS861539, ERCC1 RS11615 and ERCC2 RS13181 were not associated with the response in the radiotherapy-based multimodality treatment of patients with rectal cancer (p>0.05). Conclusions: This study shows that DNA repair gene common genetic polymorphisms are not significantly correlated with the radiotherapy-based multimodality treatment in rectal cancer patients.

계지복령환의 실험적 연구 및 치험례, 임상연구에 대한 고찰 (1990년부터 2014년까지 발행된 국내 학술지를 중심으로) (Review on the study of Gyejibokryeong-hwan - Had been published in Korea from 1990 to 2014 -)

  • 정훈;박정오;김소연;이은정;오민석
    • 혜화의학회지
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    • 제24권1호
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    • pp.47-60
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    • 2015
  • Objective : The aim of this review is to analyze the study tendency in papers on Gyejibokryeong-hwan had been published in Korea from 1990 to 2014. Methods : We searched the four electronic database(NSDL, RISS, Korean traditional knowledge portal, OASIS) and checked relevant Korean journals from 1990 to 2014. We classified the papers by publication date, speciality, study method, and field of study, and analysed the study tendency. Results : After analyzing the papers, these results are revealed : 1. 2.12 papers were published annually on average. 2. As for the speciality of the journal, most of the papers were published in Traditional Korean Medicine, and a few were in Pharmacology. 3. As for the study method, in vitro was 32%, in vivo was 30%, and clinical case was 21%, 4. As for the subject of the studies, beneficial effect was 86%, toxicity was 8%, safety, stability and qualitative analysis was 2% each. 5. As for the studies about effectiveness on the diseases, 30% at gynecologic disease and 30% at vascular disease like arteriosclerosis. There were new studies for a variety of fields like cancer, urologic, and musculoskeletal diseases. Conclusions : These results suggest that Gyejibokryeong-hwan can be used as cure medicine, but there are not sufficient evidence based papers, so there should be further studies in order to establish Gyejibokryeong-hwan as a cure medicine.

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텍스트마이닝을 활용한 연구동향 분석: 소셜네트워크서비스를 중심으로 (Research Trends Investigation Using Text Mining Techniques: Focusing on Social Network Services)

  • 윤혜진;김창식;곽기영
    • 디지털콘텐츠학회 논문지
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    • 제19권3호
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    • pp.513-519
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    • 2018
  • 본 연구의 목적은 소셜네트워크서비스 주제에 관한 연구동향을 조사하는 것이다. 연구의 목적을 달성하기 위해서 웹오브사이언스 데이터베이스에서 제목에 'Social Network Service(SNS)'를 포함하는 1994년부터 2016년까지 출판된 논문 초록 308편을 분석 하였다. 본 연구에서는 텍스트마이닝 기법 중에서 최근 많이 적용되는 토픽모델링기법을 활용하였다. 토픽모델링 분석결과 20개의 토픽(신뢰, 지지, 만족 모델, 조직 지배구조, 모바일 시스템, 인터넷 마케팅, 대학생 효과, 의견 확산, 고객, 정보보호, 건강관리, 웹 협업, 방법, 학습 효과, 지식, 개인 이론, 아동 지지, 알고리즘, 미디어 참여, 문맥 시스템)이 도출되었다. 또한 시계열회귀분석 결과 모든 토픽은 상승 추세로 나타났다.

Identification of Caenorhabditis elegans MicroRNA Targets Using a Kernel Method

  • Lee, Wha-Jin;Nam, Jin-Wu;Kim, Sung-Kyu;Zhang, Byoung-Tak
    • Genomics & Informatics
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    • 제3권1호
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    • pp.15-23
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    • 2005
  • Background MicroRNAs (miRNAs) are a class of noncoding RNAs found in various organisms such as plants and mammals. However, most of the mRNAs regulated by miRNAs are unknown. Furthermore, miRNA targets in genomes cannot be identified by standard sequence comparison since their complementarity to the target sequence is imperfect in general. In this paper, we propose a kernel-based method for the efficient prediction of miRNA targets. To help in distinguishing the false positives from potentially valid targets, we elucidate the features common in experimentally confirmed targets. Results The performance of our prediction method was evaluated by five-fold cross-validation. Our method showed 0.64 and 0.98 in sensitivity and in specificity, respectively. Also, the proposed method reduced the number of false positives by half compared with TargetScan. We investigated the effect of feature sets on the classification of miRNA targets. Finally, we predicted miRNA targets for several miRNAs in the Caenorhabditis elegans (C. elegans) 3' untranslated region (3' UTR) database. Condusions The targets predicted by the suggested method will help in validating more miRNA targets and ultimately in revealing the role of small RNAs in the regulation of genomes. Our algorithm for miRNA target site detection will be able to be improved by additional experimental­knowledge. Also, the increase of the number of confirmed targets is expected to reveal general structural features that can be used to improve their detection.

Construction Based Model for Assessing Maturity Level of Enterprises

  • Marzouk, Mohamed;Attia, Tarek;El-Bendary, Nasr Eldin
    • Journal of Construction Engineering and Project Management
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    • 제2권1호
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    • pp.14-19
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    • 2012
  • Maturity models allow organizations to assess and compare their own practices against best practices or those employed by competitors, with the intention to map out a structured path to improvement. This research explores the aspects of the Maturity Models that are relevant to distinguish them from one to another. The different Project Management maturity models for define maturity differently and measure different things to determine maturity. Because of this, organizations should give careful consideration to select appropriate maturity model. The main reason behind this research lies on the modification to the existing Organizational Project Management Maturity Model (OPM3) by adding four knowledge areas, dedicated to construction industry as best practices. These are Safety, Environment, Financial and Claim Management. This Model contains (Yes/No) questions; all of these questions must be answered before the user reviews the results that describe the overall maturity and areas of strength and weakness of an organization. The research presents the implementation of the proposed Model Construction Enterprises Maturity Model (CEM2). All the components of the developed Model have been implemented in Microsoft Access. CEM2 helps Construction Enterprises to assess their Maturity Level and know Areas of Weaknesses for future improvement. The easy to use Yes/No user interfaces help enterprises' employees to assess the maturity level of their enterprises. The Model maintains users' responses in its database; as such, many employees from different enterprise divisions can be involved during assessment phase in several sessions.

한의학계에서 델파이 방법을 사용한 연구에 대한 문헌고찰(국내 학술지를 중심으로) (The Review on the Studies Using Delphi Method in the Journals of Korean Medicine from 2006 to 2015)

  • 박창현;임형호
    • 한방재활의학과학회지
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    • 제25권3호
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    • pp.59-64
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    • 2015
  • Objectives The aim of this review is to analyse the study tendency in papers related with delphi method which are published in Korea from 2006 to 2015. Methods We searched the electronic database (NDSL, RISS, Korean traditional knowledge portal, OASIS) and checked relevant Korean journals from 2006 to 2015. 23 research papers were found and they were analyzed according to the year of publishment, the titles of journals which have the papers, the time of repeated survey and purpose of technique application. Results 1. As we analyzed by years, 2.3 papers were published per year on average. 2. As we analyzed by jounals in which papers were published, 39% of total papers were published in The Journal of the Society of Korean Medicine Diagnostics, 30% were in Korean Journal of Oriental Physiology & Pathology, taking up 69% of total papers. 3. As we analyzed by the number of survey taken in each research, 11 papers surveyed 2 times, 7 papers surveyed 3 times, 1 paper suerveyed one time. 4. As we analyzed by the purpose of technique application, 91% of papers were aimed at the development of questions, 9% of papers were aimed at policy recommendation. Conclusions These results suggest that although many researches were trying to quantify the symptom of patient, to demonstrate on exact data and to accomplish the scientification of diagnosis, the number of paper is insufficient. Therefore, it seems that more researches must be taken afterward.

통합적 고찰과 키워드 분석을 이용한 최근 10년(2008-2017) 동안의 국내 중환자간호 연구 동향 분석 (A Study of the Trends in Korean Nursing Research on Critical Care in the Last 10 Years (2008-2017) Using Integrated Review and Key Word Analysis)

  • 강지연;김수경;조영신;고현영;백지현;이수진
    • 중환자간호학회지
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    • 제11권2호
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    • pp.75-85
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    • 2018
  • Purpose : The purpose of this study was to examine the possible direction of critical care nursing research in the future by analyzing the trends of recent Korean studies. Method : Using a database search, we selected 263 articles on critical care nursing that were published in Korean journals between 2008 and 2017. Then, we conducted an integrative review of the contents of the selected articles and analyzed the English abstracts using the relevant packages and functions of the R program. Results : The number of studies concerning critical care nursing has increased over the 10-year period, and the specific topic of each study has diversified according to the time at which it was conducted. In terms of quality, the majority of the research was published in high-level academic journals. The key words regularly studied over the past decade were: knowledge, delirium, education, restraint, stress, and infection. Studies related to vancomycin-resistant enterococci infection, compliance, and standards have decreased, while studies related to death, communication, and safety have increased. Conclusion : Randomized controlled trials and protocol research for evidence-based critical care need to be conducted, as does research on family involvement. The key word analysis of unstructured text used in this study is a relatively new method; it is suggested that this method be applied to various critical care nursing research and develop it methodologically.