ABSTRACT
Abstract. Introduction. Estimation by network sampling and estimation by adaptive sampling. Constraining network sampling and constraining adaptive sampling.
Network Sampling involves two kinds of units namely (1) Selection Units (SU) and (2) Observation Units (OU). The SU’s with their numbers and identities known and for them frames may be constructed and utilized in choosing elements of SU’s. The total number of OU’s is not known and they are not identified except through the selected SU’s to which they are “linked.” The sets of OU’s mutually linked with the SU’s constitute what are known as “Networks.” From these networks samples of OU’s are chosen and surveyed for estimation of parameters related to the OU’s. This is Network Sampling.
