查詢結果分析
來源資料
相關文獻
- 補克利金及無偏束制
- Confidence Intervals for Multivariate Process Capability Indices Using Bootstrap
- 生涯可否規畫
- Information System Position & Organizational Characteristics and Information System Planning
- 號誌轉換下猶豫區間之研究
- 以多變量分析對電腦兵棋模擬之非量化模型及因素處理之探討
- 以作物需水量為基礎之氣象分區研究
- A Genetic Algorithm for Tuning Reliable Fuzzy System
- 多變量分析(6)--典型相關分析
- 多變量分析(4)--集群分析法
頁籤選單縮合
題 名 | 補克利金及無偏束制=Cokriging and Unbiasedness Constraints |
---|---|
作 者 | 張國良; | 書刊名 | 農業工程學報 |
卷 期 | 46:2 2000.06[民89.06] |
頁 次 | 頁85-90 |
分類號 | 430 |
關鍵詞 | 多變量; 規畫; 矩陣式; Multi-variate; Programming; Matrix form; |
語 文 | 中文(Chinese) |
中文摘要 | 一組資料中,往往不只含有所需要的主變量,同時也含有第二種資訊,並可用來改善推估精度。然而,傳統的cokriging無偏束制(unbiasedness constraint)強制使第二種資訊的權重總和為零,這樣的做法使第二種資訊的貢獻很小。本文提出一新的無偏束制,使得多變量cokriging的公式和單變量的kriging公式完全相同。同時,本文是第一個列出rescaled cokriging及correlogram cokriging關係式的文獻。若simple cokriging中的mean以local mean取代,本文亦成功的證明simple cokriging和ordinary cokriging之間的等價性質並非必然存在。 |
英文摘要 | A data set may contain not only the primary variable of interest, but also some available secondary information that could improve the precision of estimation. However, the traditional unbiasedness constraints require that all secondary data weights add up to zero. This method reduces the influence of the secondary information. This paper presents a new unbiasedness constraint. The formulas of multi-variate cokriging are identical with those of single-variate ordinary kriging based on the new unbiasedness constraint. In the meantime, this paper is the first one that arrives at the relations between rescaled cokriging and correlogram cokriging. If the stationary mean of simple cokriging is replaced by local mean, it can be shown that the equivalence relation between simple cokriging and ordinary cokriging will not necessarily hold. |
本系統中英文摘要資訊取自各篇刊載內容。