• 한국전통조경학회지
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• 제34권4호
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• pp.57-65
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• 2016

마을숲은 역사적, 문화적으로 한국 전통 마을경관의 핵심요소이다. 그러나 근대 이후 다양한 영향으로 많은 수의 마을숲이 소실되었거나 쇠퇴되고 있는 실정이다. 역사적, 문화적, 생태적 다양한 보전가치를 가진 마을숲의 체계적 보전 및 복원을 위한 관심과 노력이 필요한 시점이다. 본 연구는 한국 전역에 분포하고 있는 499개의 마을숲에 대하여 구성 식물종 및 서식처, 입지 특성 등을 바탕으로 국내 마을숲에 대한 생태학적 복원 및 지속가능한 이용과 관리 등에 관한 정보를 제공하고자 하였다. 마을숲 생태계를 위협하는 대표적인 6가지 범주의 위협요인을 발굴하고 각 요인별 영향력을 평가하였다. 마을숲 생태계 취약성에 미치는 영향의 정도에 대해 위협요인별 가중치 평가를 AHP 분석기법을 이용하여 보다 입체적으로 분석하였다. AHP 분석기법을 이용한 평가결과 6가지 범주 가운데 면적 축소가 국내 마을숲의 존립에 가장 큰 위협요인으로 지목되었다. 그 다음으로 지형, 토양환경 변화가 마을숲 생태계를 질적으로 변화시키는 위협 요인으로 고려되었다. 식생의 구조와 질적 변화는 서식처 변화보다 마을숲 소실 및 쇠퇴에 낮은 영향을 미칠 것으로 평가되었다. 각 요인별 가중치를 바탕으로 100점을 최고점으로 수치를 환산한 평가틀을 이용하여 마을숲에 대한 취약성 평가가 이루어졌다. 국내 마을숲의 취약성 평가결과 가장 빈도 높은 값을 보이는 등급은 III등급이며, 낮은 등급에서 높은 등급으로 정규분포 경향을 보였다. 높은 자연성을 보이는 I등급의 마을숲이 38개소 존재했으며, 취약요인들에 의해 마을숲 존폐를 위협받는 V등급의 마을숲도 10개소 확인되었다. 각 마을숲별 취약성 평가결과에서도 국내 마을숲의 지속가능성 보장을 위해 마을숲 고유의 면적 회복이 최우선 과제로 대두되었다. 국가 중요 생태자원으로서 각각의 취약요소별 국가수준의 생태적 대응전략 마련이 필요한 것으로 확인되었다.

• 지능정보연구
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• 제27권3호
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• pp.75-94
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• 2021

저출산 문제로 인한 병역자원 감소와 병 복무기간 단축에 따른 군 간부 대비 병 복무 선호 현상은 우수한 군 간부확보정책에 대한 추가적인 고찰을 필요로 한다. 이와 관련된 연구들은 대부분 사회과학에서 주로 사용되는 방법론으로 분석하였으나, 본 연구는 대량의 문헌조사에 적합한 텍스트 마이닝의 방법론으로 접근한다. 이를 위해, 본 연구는 공군 부사관 지원자 자기소개서에서 차별적인 특성의 단어들을 추출하고 합격 및 불합격의 극성을 분석한다. 본 연구는 총 3단계로 이루어졌다. 첫번째, 지원분야를 일반분야와 기술분야로 나누고, 자기소개서에서 특성을 가지는 단어들을 분야별 빈도수 비율의 차이대로 순서화 한다. 각 지원분야별 비율의 차이가 클수록 해당 지원분야의 특성을 나타내는 것으로 정의하였다. 두번째, 이 특성을 나타내는 단어들을 LDA를 통해 단어들의 Topic을 군집화하고 이를 바탕으로 Label을 정의하였다. 세번째, 이 군집화 된 지원분야별 단어들을 L-LDA를 통해 합격과 불합격의 극성을 분석하였다. L-LDA값의 차이가 합격에 가까울수록 합격자들이 많이 사용하는 단어로 정의하였다. 본 연구를 통해, 공군 부사관 자기소개서의 차별적 특성을 추출하기에는 LDA보다 L-LDA가 더 적합함을 알 수 있다. 또한, 이러한 방법론은 별도의 서면 또는 대면 설문 방식이 아니라, 대량 문서에 대한 텍스트 마이닝 기법을 적용하여 분석시간을 단축하고, 전체 모집단에 대한 신뢰성을 높일 수 있다. 따라서 본 연구인 공군 부사관 선발결과 분석을 통해, 선발제도 및 홍보제도에 활용 가능한 정보를 제공하고, 군 인력획득 분야 연구에 있어 활용 가능한 방법론을 제안하고자 한다.

• 대한교통학회:학술대회논문집
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• 대한교통학회 1995년도 제27회 학술발표회
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• pp.3-32
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• 1995

The Highway Capacity Manual specifies procedures for evaluating intersection performance in terms of delay per vehicle. What is lacking in the current methodology is a comparable quantitative procedure for ass~ssing the safety-based level of service provided to motorists. The objective of the research described herein was to develop a computational procedure for evaluating the safety-based level of service of signalized intersections based on the relative hazard of alternative intersection designs and signal timing plans. Conflict opportunity models were developed for those crossing, diverging, and stopping maneuvers which are associated with left-turn and rear-end accidents. Safety¬based level-of-service criteria were then developed based on the distribution of conflict opportunities computed from the developed models. A case study evaluation of the level of service analysis methodology revealed that the developed safety-based criteria were not as sensitive to changes in prevailing traffic, roadway, and signal timing conditions as the traditional delay-based measure. However, the methodology did permit a quantitative assessment of the trade-off between delay reduction and safety improvement. The Highway Capacity Manual (HCM) specifies procedures for evaluating intersection performance in terms of a wide variety of prevailing conditions such as traffic composition, intersection geometry, traffic volumes, and signal timing (1). At the present time, however, performance is only measured in terms of delay per vehicle. This is a parameter which is widely accepted as a meaningful and useful indicator of the efficiency with which an intersection is serving traffic needs. What is lacking in the current methodology is a comparable quantitative procedure for assessing the safety-based level of service provided to motorists. For example, it is well¬known that the change from permissive to protected left-turn phasing can reduce left-turn accident frequency. However, the HCM only permits a quantitative assessment of the impact of this alternative phasing arrangement on vehicle delay. It is left to the engineer or planner to subjectively judge the level of safety benefits, and to evaluate the trade-off between the efficiency and safety consequences of the alternative phasing plans. Numerous examples of other geometric design and signal timing improvements could also be given. At present, the principal methods available to the practitioner for evaluating the relative safety at signalized intersections are: a) the application of engineering judgement, b) accident analyses, and c) traffic conflicts analysis. Reliance on engineering judgement has obvious limitations, especially when placed in the context of the elaborate HCM procedures for calculating delay. Accident analyses generally require some type of before-after comparison, either for the case study intersection or for a large set of similar intersections. In e.ither situation, there are problems associated with compensating for regression-to-the-mean phenomena (2), as well as obtaining an adequate sample size. Research has also pointed to potential bias caused by the way in which exposure to accidents is measured (3, 4). Because of the problems associated with traditional accident analyses, some have promoted the use of tqe traffic conflicts technique (5). However, this procedure also has shortcomings in that it.requires extensive field data collection and trained observers to identify the different types of conflicts occurring in the field. The objective of the research described herein was to develop a computational procedure for evaluating the safety-based level of service of signalized intersections that would be compatible and consistent with that presently found in the HCM for evaluating efficiency-based level of service as measured by delay per vehicle (6). The intent was not to develop a new set of accident prediction models, but to design a methodology to quantitatively predict the relative hazard of alternative intersection designs and signal timing plans.

• 한국보건간호학회지
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• 제12권1호
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• pp.132-146
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• 1998

This Study was attempted to provide the basic data necessary in the development and introduction of Home Health Nursing System by investigating the recognition and attitude level of Home Health Nursing System. The data were collected by means of questionaires presented to 74 patients who had been admitted in C general hospital in Chon Ju, from June 30, 1997. As the tool for this study, the questionares developed by Kim Yong. Soon, et al (1990) and Han Bok Hee(1993) were modified and supplemented for the aim of this study. The computer was used for data analysis. The items about the charateristics of the subjects and the attitude to the management plan of Home Health Nursing System were represented as the frequency and percentage. The standard deviation and calculation average were produced on the items related to definition, recognition, necessity, expected effect of the attitude of Home Health Nursing System and the items related to admission. The ANOVA test was .used according to the characteristics of variables to analyze the necessity and difference of Home Health Nursing System. The results of this study were as follows 1) The general characteristics of the subjects were as follows ; for sex, man, $58.1\%$ ; for age, 50-59 years, $29.7\%$ ; for the level of education, high school, $51.4\%$ ; $79.7\%$ of them were married; for the family forms, small family, $73.0\%$ ; and $68.9\%$ of them take the monthly income over 100 million won. 2) The characteristics related to admissions of the subjects were as follows ; for clinic, surgical department, $78.4\%$ ; addmission not more then 7days, $47.3\%$ ; for the operation-performance $71.6\%$ of them were experienced; for the admission route, via outpatients clinic, $54.1\%$ ; for waiting period to the admission day, 1-2 days, $71.6\%$. 3) The difficulties comming from the hospitalization were related mostly to the factor that they felt hospital life more inconvenient than home.(3.66) The reasons for the difficulties in the admission which was due to insufficient beds in the hospital was related to the concentration to the general hospital because of 'The Whole National Medical Insurance System'(4.05). 4) On the previous informations about the Home Health Nursing System, those who have heard of only the name were 42 $(56.8\%)$, and on the recognition of it, they thought that it is periodic treatment by the licenced nurses for the recovering pateints after early discharge(3.73). On the attitude about the necessity of Home Health Nursing System, they thought that it is necessary because of the increasing trend of a psychological disease by the change of environment and complexity of the social structure(4.24). On the expected effect of Home Health Nursing System, they answered that it is convinient for the family of the patient to take care of them(4.l8). 5) On the attitude to the management plan of the Home Health Nursing System, those who had intention to participate in the system in the case of systemic support were 42(56.8). In the visiting time, 'visit periodically' and 'visit when the patient needs' were $28(37.8\%)$ respectively. For the application of medical insurance, if possoble, they will use $(91.9\%)$; for the method of payment for the treatment, 'pay by the time required' was $23(31.1\%)$, for the subject of management, 'National public institute must operate' was $33(44.6\%)$. 6) The relationship between the general characteristics of the subjects and the necessity of Home Health Nursing System showed the notable difference in the age (F=3.508, P<0.05) and marrage state (F=5.402, P<.023).

• 벤처창업연구
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• 제13권5호
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• pp.103-118
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• 2018

본 연구는 VMD개념을 외식음료산업에 적용하여 외식음료매장의 VMD의 여러 가지 인지차원요소들이 소비자의 감정반응과 행동의도에 미치는 영향관계를 분석하고, 요인간 상관관계를 밝힘으로써 외식음료산업에 종사하는 관계자를 비롯한 경영주 및 예비창업자들에게 디자인과 마케팅을 포괄하는 VMD전략을 수립하는데 유익한 기초자료를 제공하고자 하였다. 본 연구의 결과에 의하면, 외식음료매장의 VMD 인지 차원과 고객의 감정 반응에 대한 관계는 통계적으로 유의한 것으로 드러났으며, 외식음료매장을 방문 과정에서 느끼는 감정반응은 고객의 재방문 및 추천의도에 유의한 영향을 미치는 것으로 나타났다. 또한 감정반응은 완전매개 효과를 갖는 것으로 나타났다. 추가적으로 VMD 인지 차원의 세부적 요인들은 방문의도와 추천의도에 직접적인 영향을 미치지 못하는 것으로 드러난 반면, 감정반응을 매개로 한 간접효과는 유의한 것을 확인하였다. 결론적으로, 본 연구는 외식음료매장의 VMD 인지 차원이 소비자의 감정반응에 영향을 미치고, 감정반응이 행동의도의영향요인임을 확인하였으며, 인지차원의 요인에 따라 소비자의 감정반응에 차이가 있다는 것을 밝혔다. 따라서 외식음료매장의 VMD의 인지차원의 세부적인 요인 활용을 통해 매장의 효과적인 설계와 연출 차별화를 실행해야하며, 이 결과는 외식음료매장에서 고객들에게 적합한 마케팅 도구로 활용되어 전략을 수립하는데 있어 기초 자료로 활용할 수 있을 것이다.

• 한국방사선학회논문지
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• 제15권5호
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• pp.675-681
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• 2021

최근 교육부는 원격수업 교과목에 대한 학생 강의평가를 학기당 2회 이상 실시하여야 하며, 그 결과를 학생에게 공개하여야 한다고 원격수업 운영규정에 명시되어 있다. 따라서 D 전문대학을 그 대상으로 강의 평가를 2020년도 1학기와 2021년도 1학기와 비교하였다. 원격수업 중간강의 객관식 평가 결과, 전체 평균은 2020년도 1학기 원격수업 중간강의 평가 전체 점수가 4.1819에서 2021년도 1학기 중간강의 평가 점수는 4.4000으로 증가하여 나타났다. 2020년도 1학기의 경우 코로나 19로 인하여 전면 비대면 수업이었으나, 2021학년도 1학기의 경우 대면 수업이 증가하였다. 2020년도 1학기에는 전반적인 만족도가 4.18점에서 2021년도 1학기에는 4.39점으로 상승하였다. 상위권 3%와 하위권 3%의 화면구성, 음향 및 화질, 재생시간, 얼굴출현, 강의자료제공, 활용빈도도 상승하였다. 우려했던 LMS 교체로 인한 변화에도 불구하고 학생들의 출석률, 과제, 시험 제출률도 전 연도에 비해 상승하였다. 2020년도 1학기 원격수업 중간강의 평가와 2021년도 1학기 원격수업 중간강의 평가 대응표본 검정결과, Best 3% 이내의 경우 유의확률이 0.000으로서 0.05 미만이므로 ' 두 점수의 차이가 같다.'는 귀무가설이 기각되어 2020년도 1학기에 비해 2021학년도 Best 점수가 유의하게 높아졌음을 알 수 있다. 또한 Worst 3% 이내의 경우 유의확률이 0.000으로서 0.05 미만이므로 '두 점수의 차이가 같다'는 귀무가설이 기각되어 2020년도 1학기에 비해 2021학년도 Worst 점수가 유의하게 높아졌음을 알 수 있다.

• 보건교육건강증진학회지
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• 제18권3호
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• pp.133-162
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• 2001

Unexpected accidents in school has been gradually increased every year, and student's mistaken was the first reason of the accident. To preventing the students from Unexpected accidents in school, safety education is more important than having strong facilities to have much more strong protecting forces for the accidents. Therefore, systematic education of safety is needed most of all, and especially, strengthening safety education in school is needed. Hereby, this study is aimed at investigating and analysing the actual condition and demand of safety education. It also conducted a survey with the target of 1,255 students in the second grade of high school in Seoul from April 20 to May 19, and the result of this study is as follows. 1. In the general features of the subject of the survey, boy students and girl students occupied 50.8％ and 49.2％ each, and boys' high school (34.3％), girls' high school(32.2％) and co-ed(33.5％) participated in balance. In the location, north from Han river occupied 54.6％, south were 45.2％. 2. According to the status of experiencing an accident, boys were more experienced then girls(p〈0.05). From the section, home accident(56.8％) occupied most followed by school accident, traffic accident, sports accident and poisoning. The accident happening most often in detailed category is sports accident such as basket ball, foot ball and dodge ball. The actual condition of the subject's using a school health facility shows that boys students use it more often than girl students(p〈0.01) 3. In attitude toward safety, the subject showed lower interest in safety issues than other social issues. But attitude in seriality of safety problems were high. Also, they responded ‘individual citizen’(63.1％) as the one who should make efforts for safety. Regarding knowledge of preventing safety accidents in attitude toward individual safety, 42.2％ answered ‘they know a little’ and 32.6％ of respondents say ‘they do not know’. To a question of the degree of the subject's following safety rules, 36.4％ were answered ‘keeping’ and the group using a school health facility shows more ‘keeping’ the others(p〈0.05). 4. To a question of asking if they have experienced safety education, 51.2％ answered ‘yes’. Teachers who mainly take care of safety education are answered as training teacher(48.7％). As for education time, training class(51.3％) is said to have safety education most followed by health-related event and PE(Physical Education). Frequency of education shows once or twice a session (62.8％) most often, but in case of co-ed school, 5-7times a session or more(20.1％) are being practiced. Looking at education time, 1-2 hour(s)(22.1％) or for a short time(22.1％) during class are being practiced. As an education method, instruction(43.8％) and video education(32.5％) are being practiced, and when it comes to education evaluation method, ‘not practiced’(70.0％) answered. To the question if they are satisfied with school safety education, they answered more ‘no(43.1％)’ than ‘yes(6.7％)’, and the reason is that safety education class is just for formality's sake, and the fact they already know is being repeated. The contents of safety education is composed of school safety, home safety, and first aid. 5. It is turned out that 56.5％ of the total boy students and 61.1％ of the total girl students recognize the necessity of safety education. To the question if safety education is needed in an elementary and middle education course, 46.4％ of the subject answer answered' it's necessary'. The most reason for their answers are ‘safety education is directly related to life’. 6. Regarding the requested time of safety education is ‘one hour a week’ by 55.9％. For safety education, safety education teachers(38.7％) are answered to be the most proper. As a request for safety education, video education is answered to be the most appropriate(30.6％), followed by practical skills, lecture and discussion(p〈0.05). Demand of educational evaluation, practical skills, interview and observation are answered to be needed. To the question if they want to participate in the way of demanded safety education, 41.9％ of respondents answer ‘have a mind to participate in’ (41.9％). To benefits followed by completing safety education, 72.0％ of respondents answer ‘agree’, and 24.7％ ‘do not agree’, which means lout 4 disagrees with completing safety education. 7. Looking at demand of safety education according to the features of the subject, ‘our position for the person who has handicapped’ was answer to the most.

• Journal of Gastric Cancer
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• 제8권2호
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• pp.70-78
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• 2008

목적: VEGF-C와 VEGF-D는 맥관형성성 인자이고, E-cadherin의 비정상 발현은 위암의 진행에 중요한 역할을 한다. 이 연구의 목적은 조기위암에서 E-cadherin, VEGF-C, -D 그리고 cytokeratin 18번을 이용하여 정확하게 측정된 림프절 전이와의 연관성을 연구하는데 있다. 대상 및 방법: 1997년 3월부터 2002년 12월까지 49명의 조기 위암환자들을 대상으로 E-cadherin, VEGF-C와 VEGF-D 면역화학염색을 시행하였다. 림프절 전이를 정확하게 측정하기 위하여 49명 환자들의 1,562개의 림프절을 cytokertin 18을 사용하여 재검사 하였다. 결과: 11 (0.7%)개의 림프절이 12.2% (n=6)의 환자들로부터 새롭게 발견되었다. 정확한 림프절 전이는 점막암에서 3.6%였고, 점막하암에서 38.1%였다. 병기 이동은 3명(6.1%)의 환자에서 관찰되었다. E-cadherin의 비정상 발현은 36.7%에서 발견되었고, VEGF-C와 VEGF-D의 발현은 각각 16.3%와 36.7%에서 관찰되었다. E-cadherin의 비정상 발현은 종양의 분화도(P<0.0103)와 Lauren 분류(P<0.0001)와 뚜렷한 연관성이 있었다. VEGF-C와 VEGF-D는 조기위암에서 림프절 전이를 포함한 임상병리학적 연관성이 없었다. 그러나 E-cadheirn이 비정상 발현되고 VEGF-C 또는 VEGF-D의 발현이 동반되는 환자들에서 림프절 전이의 빈도가 높았다(P=0.0031). 결론: 본 연구에서 조기위암에서 림프절 전이와 VEGF-C, VEGF-D의 발현과의 관계를 증명할 수 없었다. 하지만 E-cadherin이 비정상 발현을 하면서 VEGF-C 또는 VEGF-D의 발현을 동반할 경우 림프절 전이와 연관성이 있었다.

• 대한간호학회지
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• 제4권2호
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• pp.78-92
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• 1974

It is the purpose of this study to make clear the way in which people can lead a more desirable human life, that is, to ascertain the method of achieving therapeutic change through transaction between nurses and psychiatric patients. The various problems proposed by th9 above-stated aims of study can be shown, such as: What kind of influences does the method of a nurse′s communication have upon the response of psychiatric patients? 1) What are the general methods of communication used by the nurses? 2) Are there any differences between the control group and experimental group in the patients′ "Child" response? 3) Are there any differences between the control group and experimental group in the Patients "Adult" response? 4) What is the most desirable method of communication for therapeutic change in the patients? In an effort to solve the above questions this study attempted and managed to draw a random sampling of 200 patients being accommodated in the National Mental Hospital by dividing them into two groups, experimental groups and control groups, and recording the transactions between nurses and patients. In the course of carrying,: out this study, the experimental group was interviewed by the nurses specially trained In the P.A.C theory. and the control group interviewed at random by the nurses with no special training in communication. Further, the communication between nurses and patients in a free, relaxed atmosphere was allowed only for 15 minutes, whereupon the nurses were requested to make process-recording according to her memory of nurse patient transaction. The process-recording which recorded a series ol transactions between the nurses and the patients was analyzed according to Berne and Harris′transactional Analysis Standard. Through this standard, the writer of this study examined the significance of difference to compare the transactions brought forth between the experimental group and the control group. The following is a summary of the study which the writer of this thesis undertook. Hypothesis to The method of communication which the nurses usually apply to the patients will be higher in "Parent" than in "Adult". The communication which the nurses carried out in the control group turned out to be not significant between "Adult" and "Parent" Accordingly hypothesis 1. carne to be rejected. Hypothesis 2. The patients "Adult" response will be higher in the experimental group than in the control group. According to the result of a CR examination, as the communication showed a significant difference on P〈.01 level′ hypothesis 2 became affirmative. Hypothesis 3. The patients′"Child" response will be higher in the control group than in the experimental group. Hypothesis 3 proved affirmative since it showed an significant degree on P〈.01 level according to the result of a CR examination. Hypothesis 4 "Adult" response of the patient will be higher in frequency by nurses′"Adult" stimulus than nurse′s "Parent" stimulus Chi-square examination revealed significant difference on P〈.05 level. Hypo. 4 is affirmed. The following conclusions are drawn out based on the result of this study. 1) The generally used method of communication stimulus used by nurses for patients proved to be "Adult" and "Parent" in similar proportion. 2) The group in which the nurses could increase the patients "Adult" response proved to be higher in the experimental group than in the control group. Therefore, the communication (or stimulus) which has been applied in the experimental group can be said to be possible method of achieving therapeutic change. 3) Since the patients′"Child" response were higher in the control group than in the experimental group the communication method used In the control group was suggested as the less agreeable method of achieving therapeutic change than that used in the experimental Group. 4) "Adult" response of patient was elicited in significantly greater percentage when the "Adult" stimulus was used by the nurse. Therefore the most desirable method of-communication to give therapeutic change definitely was shown to be the "Adult" stimulus. Recommendations for further studies are as follows: 1) Studies on nurses′role perception in nurse-patient relationships. 2) Studies on patients′response to the method of communication used by nurses according to variables such as sex, social status, educational background, state of health. 3) Application of T.A, method to various groups of patients. 4) Study of various methods to improve student skill in use of process recording.

• 지능정보연구
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• 제20권3호
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• pp.77-92
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• 2014

텍스트에 대한 사용자의 접근성을 향상시키기 위해, 이들 문서는 정해진 기준에 따라 카테고리로 분류되어 제공되고 있다. 과거에는 카테고리 분류 작업이 수작업으로 수행되었지만, 문서 작성자에게 분류를 맡기는 경우 분류 정확성을 보장할 수 없고 관리자가 모든 분류를 담당하는 경우 많은 시간과 비용이 소요된다는 어려움이 있었다. 이러한 한계를 극복하기 위해 카테고리를 자동으로 식별할 수 있는 문서 분류 기법에 대한 연구가 활발하게 수행되었다. 하지만 대부분의 문서 분류 기법은 각 문서가 하나의 카테고리에만 속하는 경우를 가정하고 있기 때문에, 하나의 문서가 다양한 주제를 갖는 실제 상황과 부합하지 않는다는 한계를 갖는다. 이를 보완하기 위해 최근 문서의 다중 카테고리 식별을 위한 연구가 일부 수행되었으나, 이들 연구는 대부분 이미 다중 카테고리가 부여되어 있는 문서에 대한 학습을 통해 분류 규칙을 생성하므로 단일 카테고리만 부여되어 있는 기존 문서의 다중 카테고리 식별에는 적용할 수 없다는 제약을 갖는다. 따라서 본 연구에서는 이러한 제약을 극복하기 위해, 카테고리, 토픽, 문서간 관계 분석을 통해 단일 카테고리를 갖는 문서로부터 추가 주제를 발굴하여 이를 다중 카테고리로 자동 확장시킬 수 있는 방법론을 제안하였다. 실험 결과 원 카테고리가 식별된 총 24,000건의 문서 중 23,089건에 대해 카테고리를 확장시킬 수 있었다. 또한 정확도 분석에서 카테고리의 특성에 따라 카테고리 분류 정확도가 상이하게 나타나는 현상을 발견하였다. 본 연구는 단일 카테고리로 분류된 문서에 대해 다중 카테고리를 추가로 식별하여 부여함으로써, 규칙 학습 과정에서 다중 카테고리가 부여된 문서를 필요로 하는 기존 다중 카테고리 문서 분류 알고리즘의 활용성을 매우 향상시킬 수 있을 것으로 기대한다.