• Title/Summary/Keyword: ranked data

Search Result 682, Processing Time 0.025 seconds

A Ranking Method for Improving Performance of Entropy Coding in Gray-Level Images (그레이레벨 이미지에서의 엔트로피 코딩 성능 향상을 위한 순위 기법)

  • You, Kang-Soo;Sim, Chun-Bo
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.12 no.4
    • /
    • pp.707-715
    • /
    • 2008
  • This paper proposes an algorithm for efficient compression gray-level images by entropy encoder. The issue of the proposed method is to replace original data of gray-level images with particular ranked data. For this, first, before encoding a stream of gray-level values in an image, the proposed method counts co-occurrence frequencies for neighboring pixel values. Then, it replaces each pay value with particularly ranked numbers based on the investigated co-occurrence frequencies. Finally, the ranked numbers are transmitted to an entropy encoder. The proposed method improves the performance of existing entropy coding by transforming original gray-level values into rank based images using statistical co-occurrence frequencies of gray-level images. The simulation results, using gray-level images with 8-bits, show that the proposed method can reduce bit rate by up to 37.85% compared to existing conventional entropy coders.

Analysis of Adverse Drug Reaction Reports using Text Mining (텍스트마이닝을 이용한 약물유해반응 보고자료 분석)

  • Kim, Hyon Hee;Rhew, Kiyon
    • Korean Journal of Clinical Pharmacy
    • /
    • v.27 no.4
    • /
    • pp.221-227
    • /
    • 2017
  • Background: As personalized healthcare industry has attracted much attention, big data analysis of healthcare data is essential. Lots of healthcare data such as product labeling, biomedical literature and social media data are unstructured, extracting meaningful information from the unstructured text data are becoming important. In particular, text mining for adverse drug reactions (ADRs) reports is able to provide signal information to predict and detect adverse drug reactions. There has been no study on text analysis of expert opinion on Korea Adverse Event Reporting System (KAERS) databases in Korea. Methods: Expert opinion text of KAERS database provided by Korea Institute of Drug Safety & Risk Management (KIDS-KD) are analyzed. To understand the whole text, word frequency analysis are performed, and to look for important keywords from the text TF-IDF weight analysis are performed. Also, related keywords with the important keywords are presented by calculating correlation coefficient. Results: Among total 90,522 reports, 120 insulin ADR report and 858 tramadol ADR report were analyzed. The ADRs such as dizziness, headache, vomiting, dyspepsia, and shock were ranked in order in the insulin data, while the ADR symptoms such as vomiting, 어지러움, dizziness, dyspepsia and constipation were ranked in order in the tramadol data as the most frequently used keywords. Conclusion: Using text mining of the expert opinion in KIDS-KD, frequently mentioned ADRs and medications are easily recovered. Text mining in ADRs research is able to play an important role in detecting signal information and prediction of ADRs.

An Analysis on the Residents' Perceptions of the Ecotourism Village (서귀포시 생태관광마을조성에 대한 주민인식에 관한 연구)

  • Lee, Jin-Hee
    • Journal of Korean Society of Rural Planning
    • /
    • v.12 no.2 s.31
    • /
    • pp.17-25
    • /
    • 2006
  • The purpose of this research is to survey resident's perceptions on the development of ecotourism village and to provide basic data far ecotourism vitalization. This research has been carried out four villages at Seogwipo city in Jeju province. A survey was implemented to investigate the resident's perceptions toward ecotourism development. To speak the results of resident's cognition, First, the existing condition on the development of ecotourism village are ranked in the order of Bomok Dong, Beobhwan Dong, Topyong Dong, Kangjung Dong. Second, the necessity of development for ecotourism village are ranked in the order of Bomok Dong, Topyong Dong, Kangjung Dong and Beobhwan Dong. Third, ecological residential style are most needed Bomok Dong, and equilibrium of ecosystem are most needed Bomok Dong.

Competitiveness Evaluation Result of Oversea Construction by country in 2013 (2013년도 국가별 해외건설 경쟁력 평가)

  • Han, Jae-Goo;Park, Hwan-Pyo;Jang, Hyoun-Seung
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2014.05a
    • /
    • pp.6-7
    • /
    • 2014
  • The objective of this study is the competitiveness evaluation of oversea construction by country in order to provide preliminary data of government policy in 2013. In result the United States ranked first, followed by China(2nd), Germany(3rd), France(4th), and Spain(5th), while Korea ranked 7th overall. In particular, Korea's competitiveness in the construction infrastructures by country ranking(8th) was lower than the competency evaluation results of construction companies by country, therein ranking 7th.

  • PDF

An Analyzing the Competitiveness of Chinese Metal Items in the Korean Market under Korea-China FTA (한·중 FTA에 따른 중국산 금속 품목의 한국시장 경쟁력 분석)

  • Kim, Ji-Yong
    • Asia-Pacific Journal of Business
    • /
    • v.8 no.1
    • /
    • pp.67-77
    • /
    • 2017
  • The purpose of this study was to analysis Korean market competitiveness of Chinese metal items. Methods of analysis were Market Share Index, Market Comparative Advantage. The data was collected through Korean Materials & Components Technology Network and period of analysis were 2009-2016. Chinese main 6 metal items which recorded high-ranked export sum and exported to Korea in 2009-2016. From this study, following results were found. i) In searching trade balance aspects through MSI, highly ranked Chinese metal items in Korea market were steel rolling, pressing&elongation products, steel tubes, steel casting industry. ii) In searching market advantage aspects through MCA, Chinese metal items have strong competitiveness in Korea market. especially, steel rolling, pressing & elongation products, steel tubes, steel casting industry had strong competitiveness in Korea Market. In conclusion, we found that most of Chines metal items have competitiveness in Korea market. Especially, steel rolling, pressing & elongation products had very strong competitiveness in Korea market.

  • PDF

Using Collective Citing Sentences to Recognize Cited Text in Computational Linguistics Articles

  • Kang, In-Su
    • Journal of the Korea Society of Computer and Information
    • /
    • v.21 no.11
    • /
    • pp.85-91
    • /
    • 2016
  • This paper proposes a collective approach to cited text recognition by exploiting a set of citing text from different articles citing the same article. First, the proposed method gathers highly-ranked cited sentences from the cited article using a group of citing text to create a collective information of probable cited sentences. Then, such collective information is used to determine final cited sentences among highly-ranked sentences from similarity-based cited text recognition. Experiments have been conducted on the data set which consists of research articles from a computational linguistics domain. Evaluation results showed that the proposed method could improve the performance of similarity-based baseline approaches.

A study on the Visual Impact of Pavilions In Natural Landscapes (자연경과지 내에서 정자의 시각적 영향에 관한 연구)

  • 서주환
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.23 no.2
    • /
    • pp.17-28
    • /
    • 1995
  • The purpose of this thesis is to suggest basic objective data for landscape planning and design through the quantitative analysis of the visual impact of pavilion situated in natural landscapes. For this, naturality and visual preference scores of landscape s1ides were measured by questionnaires, visual volumes of pavilion in the natural landscape were evaluated using the Mesh analysis and images structure was analyzed by the factor analysis algorithm The results of this thesis can be summarized as follow. Landscape slides No. 27 and 9 were ranked more highly for naturality, and slides No.22, 28, 6 and 4 were ranked more highly for visual preference. Factors covering the spatial image of the natural landscape were found to be the evaluation, the tidiness and the space volume. By using the control method for the number of factors, T. V., were obtained as 59.0%. For all experimental landscape slides, the factors of evaluation and tidiness were found to be the main factors determining the naturality and visual preference. The naturality and actor scores and the visual preference and factor scores were found to exepress the regression relation.

  • PDF

Views about the degree of recognition of dental hygiene of elementary school teachers - The object of study: elementary school teachers in city of Daegu - (대구지역 일부 초등학교 교사의 구강보건인식도에 대한 견해)

  • Jung, Eun-Kyung;Lee, Ga-Ryoung
    • Journal of Korean society of Dental Hygiene
    • /
    • v.6 no.2
    • /
    • pp.165-174
    • /
    • 2006
  • In order to establish basic data before deciding on the ways to manage school dental hygiene project, this study polled 165 elementary school teachers. Collected data was used SPSS 12.0 statistics program and got the technical statistics and This research and analysis came to the following conclusion by using Fridmen rank test, Pearson's correlation. 1. To the question about how they acquire the knowledge of dental hygiene, 60.6 percent of elementary school teachers turned out to learn about it through mass media(TV, Internet, magazines). 2. Regarding the purpose to maintain dental hygiene, "the prevention of dental diseases" ranked highest, and next "the prevention of cavity" and "the cure of halitosis" appeared at the similar level, and "to become a good model of children" and "to serve the esthetic purpose" ranked lowest. 3. As to the ways to prevent cavity, regular visits to dental clinic and daily brushing turned out to be more effective preventation method. 4. As for the degree of recognition of fluoride, the correct answer about fluoride that is recovered slight caries is appeared 11.8%, that was lowest correct answer ratio.

  • PDF

A Study on the Noise Level and Patients' Perception of the Noise in Emergency Department (응급실의 소음도와 환자의 인지정도에 관한 연구)

  • Chung Seung-Eun;Choi Chang-Ha
    • Journal of Korean Academy of Fundamentals of Nursing
    • /
    • v.5 no.2
    • /
    • pp.341-352
    • /
    • 1998
  • The purpose of this study was to provide a bases for comfort of patient through of measuring the noise level in emergency room and grasping the perception to noise of inpatient. Data on noise level through sound level meter in ER and patients' perception of the noise through a structured questionnaire and were collected from August 21 to September 5 in 1998. And collected data were analyzed with SAS statistics progeam, descriptive statistic, t-test and ANOVA. The result of examination is as follows : 1. Among a noise level of measured highest was 64.6dB(A) in 'rounding of medical teams', the lowest was 54.8dB(A) in 'traffic noise from outside'. 2. The mean score of noise perception was 0.93. Among a kind of noise reported by the subjects, that which ranked highest was 'conversation of patients' caregiver and visitors'(1.75). The ranked lowest was 'noise of airconditioner'(0.59). 3. The relationship between perception of noise and subjects' characteristics was not significient. Therefore, based on this result, ways require to decrease the noise level in emergency department.

  • PDF

An Analysis of Burnout Factors and Coping Methods on Continuous Peritoneal Dialysis Patients (복막투석환자의 소진요인과 대응양상에 관한 분석)

  • Jeong, Yeong-Sun;Choe, Gwi-Sun
    • The Korean Nurse
    • /
    • v.34 no.2
    • /
    • pp.66-76
    • /
    • 1995
  • This study was done to identify burnout factors and coping methods surveyed upon 59 out-patients who have continuous peritoneal dialysis. Raw data was collected after being filled the questionnaire by subjects or directly interviewing at the peritoneal dialysis room of the K hospital. Taegu. Then. data was classified and analyzed according to categories of questions and revealed facts. The following results are obtained: The average age of subjects is 43.8 years old and the average duration of continuous peritoneal dialysis is 16.9 months. The reasons of choosing continuous peritoneal dialysis are 61. 0% by recommendation of doctor and nurse ranked as the first, 32. 2% by patient own decision ranked as the second. The 57.6% of subjects were experienced complications related to continuous peritoneal dialysis. The major psychosocial burnout factors because of the dialysis are confinement, wasting time, change in responsibility and role as a member of family, worriment for infection, interference in job: and the major physiological burnout factors are fatigue and weakness. Among the main coping methods, the problem-oriented coping methods are "accept the given situation itself, "actively try to change the situation", "try to maintain some controls over the situation", and the affective-oriented coping method are "give up and accept as fate", "pray", "ask comfort or help from family and friends", "sleep", "cry". Conclusively, it can be said that effective nursing intervention is needed to prevent continuous peritoneal dialysis burnout.

  • PDF