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정보검색에서의 어의 중의성 해소를 위한 자동 키워드망의 이용
김정세,장덕성,Kim, Jung-Sae,Jang, Duk-Sung 한국정보처리학회 2000 정보처리논문지 Vol.7 No.12
문서 검색 시스템에서 자동 색인은 필수적이다. 그러나 자동 색인만으로 최적합 문서들을 상위에 위치시키기 불가능하다. 뿐만 아니라 동음이의어를 갖는 부적합한 문서들이 상위에 위치되는 것을 막을 길이 없다. 본 논문에서는 이런 문제를 해소하고 검색 효과를 높이기 위해 2차 검색에 자동 키워드망을 이용하는 두 단계 검색시스템을 연구하였다. 1차 검색은 자동색인으로 만들어진 역색인 파일을 이용하며, 2차 검색은 단어 연관성을 기초로 만든 자동 키워드망을 이용한다. 2차 검색을 위한 문서 순위 재조정 식들을 여러 개 만들어 비교하였으며, 이 식들이 동음이의어 어의 중의성 해소에 얼마나 효과가 있는지 성능을 평가하였다. The automatic indexing is a compulsory part for the text retrieval system. However it is impossible to rank the appropriate texts at top. Furthermore, it is more difficult to prevent to rank the inappropriate texts having homonyms at top by only the automatic indexing. In this paper, we proposed the two-level retrieval system to enhance the retrieval efficiency, in which Automatic Keyword Network (AKN) is used at the second-level process. The firsHevel search is carried out with an inverted index file generated by the automatic indexing. On the other hand the second-level search exploits AKN based on the degree of asslxiation between terms. We have developed several formulas for rearranging the rank of texts at second-level search, and evaluated the performance of the effects of them on resolving the word sense ambiguities.
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김정세 ( Jung Sae Kim ) 한국아메리카학회 1970 美國學論集 Vol.2 No.1
It is widely known that the Wall Street has consistently shown a positive response to the peace moves in Vietnam, which is in effect a reflection of the popular concern over the gravity of economic as well as political constraints that bind the nation. The Vietnam War has brought, among other things, a very high pressure upon the American economy, creating an inflationary tendency and, in turn, the balance of payment difficulties and a deterioration of the value of the dollar. The economy had already been at a mature stage when the war began to escalate. The domestic boom and the external imbalance should not be construed as mere economic ills; they are intertwined with the basic political and social issues of America today. The United States foreign policy has recently been characterized as one of over-involvement, which has entailed large expenditures overseas in the form of military and economic aids. On the home front, what has prevailed is the other extreme--an under-commitment that has led, for instance, to the urban crisis centering around Negro discontent. The sense of urgency with respect to the racial problem is due largely to the realization that it may affect the stability of American institutions. Little progress has been made in the fight against poverty, which calls forth among Negroes feelings of frustration and of estrangement from the affluent society. The full-scale integration of the Negro population presupposes not only the provision of social security measures but a longer-run approach to raise, their incomes, enabling them to have access to better employment opportunities, housing and education. But such plan requires a large amount of additional government spending, and the American economy is already carrying the burden of considerable fiscal deficits. The nation thus find itself in a dilemma: to counter inflation and yet to spend more at the same time to meet the social question. A truce in Vietnam may make it possible for a major portion of the current military expenditure to be transferred to the internal needs, but it has to be borne in mind that there is a forthright demand for the building of strategic weapons to maintain the American superiority over the Soviet Union. The prosperity of the United States is in part attributable to the basic structural changes that ``occurred with the inception of World War II: economic democracy, the expansion of government, and the oligopolistic realignment. This development has helped remove many a flaw of capitalism, but has been accompanied with several imbalances. There is, for example, the built-in inflation which the wage increase, the excess demand, and the oligopolistic pricing, which are the elements of the new structural arrangement, can all intensify. This is a very crucial issue before the American economy, which is no less important that the need to protect the value of the dollar as a world currency.
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김정세(Jeong-Se Kim),강현규(Hyun-Kyu Kang) 한국정보과학회 1995 한국정보과학회 학술발표논문집 Vol.22 No.1
동적 정보 검색은 정보 검색에 있어서 수시로 변화하는 데이타에 대한 색인 및 검색 방법이다. 기존의 방법은 변화하는 데이타에 대해서 전부를 새로 배치(batch)로 실행해야하는 문제점을 가지고 있다. 이를 해결하기 위해 색인 화일들을 재구성하여 배치 실행시보다 빠르게, 변화하는 데이타에의 접근이 가능하도록 하는 것이다. 본 논문에서 제시된 방법의 실험은 한국 전자 통신연구소 자연어 처리 연구실에서 개발된 멀티미디어 전자 백과 사전의 하부 화일들에서 행하여졌다. 기존의 시스템에서 새로운 것이 삽입되었을 경우에 배치로 실행시 486PC 환경에서 9시간정도 걸렸으나 제시된 시스템에서는 5분이내로 수행하여 검색이 가능하도록 하였다. 본 문서에서 제시한 동적 정보 검색은 변화하는 정보를 관리를 하는 정보 검색의 분야에 적용될 수 있을 것이다.
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정세연,황재웅,김석민,정재한,최창민,정우상,문상관,조기호,김영석,선종주,Chung, Sae-Yun,Hwang, Jae-Woong,Kim, Seok-Min,Jung, Jae-Han,Choi, Chang-Min,Jung, Woo-Sang,Moon, Sang-Kwan,Cho, Ki-Ho,Kim, Young-Suk,Sun, Jong-Joo 대한한방내과학회 2006 大韓韓方內科學會誌 Vol.27 No.2
Objectives : In this study we investigated BDI(Beck Depression Inventory) improvement of poststroke depression Patients who took the acupuncture with aromatherapy, in order to examine its capacity as a new treatment and to establish a primary data for further studies of developments of diverse Practical acupunctures. Methods : Physicians applied the acupuncture with aromatherapy every day for two weeks. We had evaluated baseline characteristics and BDI of all Patients, and revaluated BDI and examined the side effects two weeks later. The qualified Patients were classified into two groups, depression group (more than 10 points and 10 in BDI) and non-depression group (less than 10 points in BDI) according to the baseline BDI. Results : The study was completed with 27stroke patients. The acupuncture with aroma therapy was applied in 18 post-stroke depression patients and 9 non-depression patients for 2 weeks. And the result showed that the BDI scores in the depression group decreased to $16.5{\pm}11.1$ after the treatment (compared to $24.4{\pm}11.5$ before the treatment). so proved the significant effect on post-stroke depression of the acupuncture. On the other hand. the scores in the non-depression group increased to $9.2{\pm}9.5$ (compared to $3.3{\pm}3.0$). Conclusions : The acupuncture with aromatherapy applied on post-stroke depression patients showed the effect of BDI improvement. Further researches are needed to evaluate the distinct functional mechanism of acupuncture with aromatherapy, and to estimate its effectiveness by well-designed randomized controlled trial.
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