• Title/Summary/Keyword: classification theory

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A Study on Sinusitis in Pediatric Patients : the Analysis of Age and the Classification of Korean Medical Clinical Type (한방병원에 내원한 부비동염 환아의 연령 분석 및 임상 유형 분류)

  • Lee, Sun Jung;Kang, Kyung Ha;Park, Eun Jeong
    • The Journal of Pediatrics of Korean Medicine
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    • v.30 no.1
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    • pp.9-21
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    • 2016
  • Objectives The purpose of this study is to analyze sinusitis patients who visited the department of pediatrics, OO Korean medicine hospital by using their age and to classify the clinical type by Korean medical theory. Methods The study was conducted based on 178 cases that consisted of sinusitis patients (from 1 to 15 years old) who visited OO Korean medicine hospital from March 2014 to March 2015. We analyzed the age of patients and classified them by the clinical type by reviewing patient's charts. After that, we compared the results with the results of previous studies. Results and Conclusions 178 Patients were studied. 2-years-age group was 19.7% of the study group which was higher than that of previous studies. The Lung-Kidney Yin Deficiency (肺腎陰虛) group was 33.1%, Wind-Heat (風熱) group was 29.8% and the Wind-Cold (風寒) group 18.5%, Spleen-Lung Qi Deficiency (脾肺氣虛) group was 15.7% and the Heart-Spleen Qi Deficiency (心脾氣虛) group was 2.8% of the study group. Children are full of Yang but lack of Yin (陽常有餘陰常不足) so they easily transform into heat and fire (化熱化火). The patients who had sinusitis were most likely to suffer from the common cold for more than a week, once a month. 45.1% of the people from the study group was suffered from common cold more than a week, and 43.8% of the people got common cold once a months. About 21.6 % and 18.3% of the people got common cold twice a month and once every 2 months, respectively. The remaining 15.7% got cold during the season changes.

FUZZY LOGIC KNOWLEDGE SYSTEMS AND ARTIFICIAL NEURAL NETWORKS IN MEDICINE AND BIOLOGY

  • Sanchez, Elie
    • Journal of the Korean Institute of Intelligent Systems
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    • v.1 no.1
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    • pp.9-25
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    • 1991
  • This tutorial paper has been written for biologists, physicians or beginners in fuzzy sets theory and applications. This field is introduced in the framework of medical diagnosis problems. The paper describes and illustrates with practical examples, a general methodology of special interest in the processing of borderline cases, that allows a graded assignment of diagnoses to patients. A pattern of medical knowledge consists of a tableau with linguistic entries or of fuzzy propositions. Relationships between symptoms and diagnoses are interpreted as labels of fuzzy sets. It is shown how possibility measures (soft matching) can be used and combined to derive diagnoses after measurements on collected data. The concepts and methods are illustrated in a biomedical application on inflammatory protein variations. In the case of poor diagnostic classifications, it is introduced appropriate ponderations, acting on the characterizations of proteins, in order to decrease their relative influence. As a consequence, when pattern matching is achieved, the final ranking of inflammatory syndromes assigned to a given patient might change to better fit the actual classification. Defuzzification of results (i.e. diagnostic groups assigned to patients) is performed as a non fuzzy sets partition issued from a "separating power", and not as the center of gravity method commonly employed in fuzzy control. It is then introduced a model of fuzzy connectionist expert system, in which an artificial neural network is designed to build the knowledge base of an expert system, from training examples (this model can also be used for specifications of rules in fuzzy logic control). Two types of weights are associated with the connections: primary linguistic weights, interpreted as labels of fuzzy sets, and secondary numerical weights. Cell activation is computed through MIN-MAX fuzzy equations of the weights. Learning consists in finding the (numerical) weights and the network topology. This feed forward network is described and illustrated in the same biomedical domain as in the first part.

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Trends of Studies in Korean Journal of Acupuncture (대한경락경혈학회지 연구동향)

  • Song, Jichung;Hwang, Seongyeon;Ahn, Sunghoon;Eom, Dongmyung
    • Korean Journal of Acupuncture
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    • v.33 no.1
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    • pp.1-11
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    • 2016
  • Objectives : When we understand the characters of certain person or object, we try to follow each one's or its past up. Korean Journal of Acupuncture is one of the most significant journal in acupuncture study fields in Korea. To understand the trends of study in acupuncture study fields, I made a subject with Korean Journal of Acupuncture. Methods : I made an evaluation and classification for all 713 articles' headline from vol. 17(2000 year) to vol.32(2015 year). Results : 1. Experimental Reseach : There were major portion articles for pharmaco-acupuncture study out of studies for acupuncture, moxibustion, chiropratics, devices and so on. 2. Bibliographical Research and Basic Theory Research : There were major portion articles for medians and acu-point study out of studies for article review and text book itself. Also, there were major portion articles for meridian and acupuncture study out of studies for Qigong, pulse, anatomy and so on. 3. Clinical Research : There were major portion articles for acupuncture study out of studies for moxibustion, chiropratics, devices, complex treatments and so on. 4. Others : There were major portion articles for diagnosis and measurement devices out of acupuncture, laser, pulsing device and so on. Also, there were surveys for recognition of patients and medical services and evaluations for measuring diagnosis utility and those effects. Conclusions : With thise results, I hope that several researchers could consider scope and subject when they submit articles for Korean Journal of Acupuncture.

Study on the Meaning of Yin-Yang and Sasang in the "Huangdineijing" ("황제내경(黃帝內經)"의 '음양(陰陽)'과 '태양(太陽).소양(少陽).소음(少陰).태음(太陰)'의 의미 고찰)

  • Lee, Ok Youn;Jung, Yun Im;Bae, Go Eun;Kwon, Young Kyu
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.28 no.6
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    • pp.577-584
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    • 2014
  • The purpose of this study was to examine how the term Yin-Yang and Sasang categorized in the book "Huangdineijing". In order to investigate how the terms are used, we reviewed the text including the terms expressed in the manner of [(Yin/Yang) within (Yin/Yang)] and [Sasang]. We found three forms of expressions; [(Yin/Yang) within (Yin/Yang)], [Sasang], [(Sasang) within (Yin/Yang)]. Two paragraphs of [(Yin/Yang) within (Yin/Yang)] was found in one chapter, two paragraphs of [(Sasang)] was found in two chapters, and three paragraphs of [(Sasang) within (Yin/Yang)] was found in three chapters. We found five types of relation between [(Yin/Yang) within (Yin/Yang)], [Sasang], and five phases in "Huangdi neijing" as follows; (1) Yang within Yin, lesser Yang, and wood (2) Yang within Yang, greater Yang, and fire (3) ( ), ( ), and extreme Yin (4) Yin within Yang, lesser Yin, and metal, and (5) Yin within Yin, greater Yin, and water. And, as for the [(Yin/Yang) within (Yin/Yang)] and [(Sasang) within (Yin/Yang)], the classification criteria for Yin-Yang were brightness, abdomen/back or lumbar. The order of Sasang with the description form of [Sasang] or [(Sasang) within (Yin/Yang)] in "Siqi Tiaoshen Dalun" and "Liu Jie ZangXiang Theory" was lesser Yang, greater Yang, greater Yin, and lesser Yin, which is based on the meridian system or a plant-shaped change order. We discussed the results and its implication for the analysis of medical classics with the consideration of previous studies on Yin-Yang theories in "Huangdi neijing".

Analysis of BMI and Food Preference by Sasang Constitutional Typology classified by SCAT2 and a Specialist (SCAT2와 전문가에 의해 분류된 사상체질별 BMI 및 식품선호도 분석)

  • Cheon, Jin Sol;Yim, Dong Koo;Kim, Soon Mi
    • Journal of the Korean Society of Food Culture
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    • v.33 no.2
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    • pp.186-198
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    • 2018
  • The Sasang constitution typology was analyzed through SCAT2 and a specialist to examine the correlation between the Sasang constitution and dietary pattern, and the difference in BMI and food preference according to Sasang constitution was determined. The Sasang constitution typology of the subjects was classified by SCAT2 and a specialist. Seventy-four subjects were screened by SCAT2 (SC), and 18 of them were judged by the specialist (SP). The results of SCAT2 and the specialist were consistent in 13 subjects (SS). BMI and food preference among these groups were compared. The concordance rate of SCAT2 and the specialist classification was 72.2%. The BMI in SC was significantly lower in the order of Taeeumin, Soyangin, and Soeumin, but no significant difference was observed between Taeeumin and Soyangin in SP and SS. To analyze the preference of food and the constitutional suitability, the 'Yin-Yang food preference index' was developed and compared with the data classified by constitutional food according to existing ideological medical theory. As a result, there were 33 food items that matched in the SP-SS, which was more than that in the SC-SP (4 items), SC-SS (6 items), and SC-SP-SS (4 items). Twenty-four of the 33 matched food items were consistent with the existing constitutional food data. In conclusion, SCAT2 is a very useful tool for Sasang constitutional research, but for more objective research, it is recommended that subjects who show consistent results by different methods be targeted.

A Qualitative Exploration of Folksonomy Users' Tagging Behaviors (폭소노미에 따른 웹 분류 연구 - 이용자 태깅 행위 분석을 중심으로 -)

  • Park, Hee-Jin
    • Journal of the Korean Society for Library and Information Science
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    • v.45 no.1
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    • pp.189-210
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    • 2011
  • This study aims to explore how users are tagging in order to utilize a folksonomy and whether they understand the social and interactive aspects of tagging in three different folksonomic systems, Connotea (www.connotea.org), Delicious(http://delicious.com), and CiteULike(www.citeulike.org). The study uses internet questionnaires, qualitative diary studies, and follow-up interviews to understand twelve participants' tagging activities associated with folksonomic interactions. The flow charts developed from the twelve participants showed that tagging was a quite complex process, in which each tagging activity was interconnected, and a variety of folksonomic system features were employed. Three main tagging activities involved in the tagging processes have been identified: item selection, tag assignment, and tag searching and discovery. During the tag assignment, participants would describe their tagging motivations related to various types of tags. Their perception of the usefulness of types of tags was different when their purpose was for social sharing rather than personal information management. While tagging, participants recognized the social potential of a folksonomic system and used interactive aspects of tagging via various features of the folksonomic system. It is hoped that this empirical study will provide insight into theoretical and practical issues regarding users' perceptions and use of folksonomy in accessing, sharing, and navigating internet resources.

Solving Multi-class Problem using Support Vector Machines (Support Vector Machines을 이용한 다중 클래스 문제 해결)

  • Ko, Jae-Pil
    • Journal of KIISE:Software and Applications
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    • v.32 no.12
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    • pp.1260-1270
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    • 2005
  • Support Vector Machines (SVM) is well known for a representative learner as one of the kernel methods. SVM which is based on the statistical learning theory shows good generalization performance and has been applied to various pattern recognition problems. However, SVM is basically to deal with a two-class classification problem, so we cannot solve directly a multi-class problem with a binary SVM. One-Per-Class (OPC) and All-Pairs have been applied to solve the face recognition problem, which is one of the multi-class problems, with SVM. The two methods above are ones of the output coding methods, a general approach for solving multi-class problem with multiple binary classifiers, which decomposes a complex multi-class problem into a set of binary problems and then reconstructs the outputs of binary classifiers for each binary problem. In this paper, we introduce the output coding methods as an approach for extending binary SVM to multi-class SVM and propose new output coding schemes based on the Error-Correcting Output Codes (ECOC) which is a dominant theoretical foundation of the output coding methods. From the experiment on the face recognition, we give empirical results on the properties of output coding methods including our proposed ones.

The Study of Verification Bi-Digital O-Ring Test by gauges (계측기(計測器)를 이용한 O-Ring Test법(法)의 검증(檢證)에 관(關)한 연구(硏究))

  • Kim, Jeong-Ryeol;Kim, Dal-Rae
    • The Journal of Korean Medicine
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    • v.16 no.2 s.30
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    • pp.225-247
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    • 1995
  • Using Bi-Digital O-Ring Test which was developed by Ohmura Toshiaki, constiution classification by the vegetables' was Measured by various muscle power measurement meters and the results are as follow: 1. Pinch Gauge (Model:pc5030HPG, Japan) is the gauge to measure finger power between the thumb and the second finger, Grip Strength Dynamometer (Model: T.K.K. 5101, Japan) is to measure the hand power (hand dynamometer), Back Strength Dynamometer (Model: T.K.K. 5102, Japan) is to measure back muscle strength, Vertical jump Meter (Model: T.K.K. 5106, Japan) is to measure the height of jump. The above gauges were and its result found that the radish, potato, carrot and cucumber can influence to muscle strength was not true. 2. When the physical constitution is distinguished by the O-Ring Test method, Taeyangin's rate appeared as average 21% although it was insisted that there will be only 0.03-0.1%. This means that the physical constitution but it appears accidently according to the examinee's emotion about the material such as vegetable etc. as favor or unfavor. 3. It was found that the result of O-Ring Test is the same at any time and at any place was not true. there is no reemergence character. 4. The import of O-Ring Test mehtod to the physical discrimination disregarded that the mental factor influences absolutely to the physical heath in the ideological physi cal constitution medical science. 5. 'O-Ring Test method is a objective judgement method.' is wrong judgement. As you see on the above result, Bi-Digital O-Ring Test set the changeable voluntary muscle as the standard of the judgument, that was first mistake logically, second in spite of leass influence of mental influence by the examiner and examinee than the vegetable discrimination influence, the test disregarded the influence. Third, only grasp of some material on hand can influence to the voluntary muscle was a wrong theory disregarding the physiology. Finally the misunderstaning his subjective view as an objective view in spite of examiner and examinee's strong influence. Therefore such kind of physical descrimination method must be sublated.

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Analysis of Osteopathic Manipulation and Study on Relationship with Chuna Manual Therapy for Meridian Sinew System (정골의학적(Osteopathic) 수기요법 분석 및 경근추나와의 관련성 연구)

  • Kweon, Jeong-Ju;Lim, Hyung-Ho;Song, Yun-Kyung
    • Journal of Korean Medicine Rehabilitation
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    • v.21 no.2
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    • pp.171-188
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    • 2011
  • Objectives : The aim of this study is to analyze the actual investigation and classification of osteopathic manipulation by investigation of the various literature of the inside and outside of the country, and to present the application plan of osteopathy in chuna manual therapy for meridian sinew system. Methods : I referred to the domestic and foreign books about osteopathy and chiropractic. In order to investigate domestic dissertations, I searched 4 Korean medical databases and 4 Korean medical journals of osteopathy. Search terms used were osteopathy, osteopathic, fascia, proprioreceptor, mechanoreceptor, muscle spindle, golgi tendon organ, osteopathic manipulation technics. And I classified all the searched studies into principle and region and etc. In order to investigate foreign dissertations, I search 'NCBI pubmed'. Search terms used were osteopathy, osteopathic technique, osteopathic manipulative technique. Results : 1. Osteopathy do not regard the systems which compose the human body in individual territory, but regard whole. It is diagnosis, prevention and medicine which treats 2. Osteopathic manipulation techniques are classified into direct techniques, indirect techniques, and compound techniques. 3. Osteopathic manipulation techniques are classified into fascia, muscle, ligament-joint in applied region. 4. I could search clinical cases in domestic and foreign study. I found cases about myofascial release technique(MFR), postisometric relaxation(PIR), proprioceptive neuromuscular fascilitation(PNF), muscle energy technique(MET), joint mobilization in domestic studies, and strain-counterstrain technique(SCS), MET, AK in foreign studies. Conclusions : Osteopathic manipulation techniques can be used in diagnosis and treatment of meridian muscle theory, because osteopathy and the oriental medicine have many similarities in theoretical background. So osteopathic manipulation technique can be useful in oriental medicine treatment techniques.

An Improvement of FSDD for Evaluating Multi-Dimensional Data (다차원 데이터 평가가 가능한 개선된 FSDD 연구)

  • Oh, Se-jong
    • Journal of Digital Convergence
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    • v.15 no.1
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    • pp.247-253
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    • 2017
  • Feature selection or variable selection is a data mining scheme for selecting highly relevant features with target concept from high dimensional data. It decreases dimensionality of data, and makes it easy to analyze clusters or classification. A feature selection scheme requires an evaluation function. Most of current evaluation functions are based on statistics or information theory, and they can evaluate only for single feature (one-dimensional data). However, features have interactions between them, and require evaluation function for multi-dimensional data for efficient feature selection. In this study, we propose modification of FSDD evaluation function for utilizing evaluation of multiple features using extended distance function. Original FSDD is just possible for single feature evaluation. Proposed approach may be expected to be applied on other single feature evaluation method.