منابع مشابه
Replicated sampling increases efficiency in monitoring biological populations.
Observation or sampling error in population monitoring can cause serious degradation of the inferences, such as estimates of trend or risk, that ecologists and managers frequently seek to make with time-series observations of population abundances. We show that replicating the sampling process can considerably improve the information obtained from population monitoring. At each sampling time th...
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The Web currently suffers from a number of scalability problems. While general caching techniques can be used to help some, the vast number of different resources now available requires an alternative approach. In particular, we need to develop resourcespecific strategies. Such an approach is not supported in the current Web infrastructure. Also, the current Web is limited in flexibility with r...
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Extended Abstract. Inferences for spatial data are affected substantially by the spatial configuration of the network of sites where measurements are taken. Consider the following standard data-model framework for spatial data. Suppose a continuous, spatially-varying quantity, Z, is to be observed at a predetermined number, n, of points ....[ To Countinue Click here]
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Extended Abstract. It is a traditional way in biological, sociological, agricultural and geological studies to partition a geographical area into quadrats and then take a sample of them by a particular sampling design. We study the relevant characteristic of quadrats to estimate a parameter of the population. We suppose that the variable of interest has a positive spatial autocorrelation. Sampl...
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Implementing unequal probability sampling, without replacement, is very complex and several methods have been suggested for its performance, including : Midseno design and systematic design. One of the methods that have been introduced by Devil and Tille (1998) is the splitting design that leads to simple random sampling .in this paper by completely explaining the design, with an example, we ha...
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ژورنال
عنوان ژورنال: Japanese Sociological Review
سال: 1969
ISSN: 1884-2755,0021-5414
DOI: 10.4057/jsr.19.4_64