The Korean Journal of Applied Statistics (응용통계연구)

The Korean Statistical Society (한국통계학회)
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Estimating using the method of adaptive searching observation

적합탐색 관찰방법을 이용한 추정

  • 변종석 ((110-745) 서울 종로구 명륜동 3가 53, 성균관대학교 통계학과) ;
  • 남궁평 ((110-745) 서울 종로구 명륜동 3가 53, 성균관대학교 통계학과)
  • Published : 1996.09.01
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Abstract

We propose an adaptive searching method using some spatial relations among sample points to estimate the interesting area in the spatial population. The fundamental idea is to observe the neighboring sample points when a sample point is satified with some condition of an adaptive searching observation. For obseving the sample points with this method to estimate the area the sample size is decreased. From this result, we may expect to reduce the cost and time consuming in observation the sample points and to draw the shape of the interesting area without prior information of an spatial population. Some analytical simulation results are also presented.

2차원의 공간모집단에서 모수를 추정하기 위하여 모집단내에서 존재하는 위치들간의 공간적 종속관계를 이용하여 표본단위를 관찰하는 적합탐색 관찰방법을 제안하고, 공간모집단에서 관심영역의 면적이나 비율을 추정하고자 할 때 적합탐색 관찰방법을 적용하여 얻은 추정량에 대하여 살펴본다. 각 표본점들 사이에 존재하는 공간종속관계를 이용한 적합탐색 관찰방법을 적용한다면 조사이전에 미리 정해지는 표본크기 n에 대하여 추출된 표본단위들을 모두 관찰하는 전통적인 표본설계에 비하여 보다 적은 수 $m(m \leq n)$개의 관찰로써 추정할 수 있을 것이다. 이로써 표본조사시 발생하는 비용과 시간 등의 절감효과가 기대되며, 추정하려는 관심영역의 형상에 대한 사전 정보가 존재하지 않더라도 적합탐색 관찰방법으로 그 형상을 파악할 수 있게 된다.

Keywords

References

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