Browsing Artikler / Journal articles by Author "Zhang, Li-Chun"
Now showing items 1-17 of 17
-
A calibrated imputation method for secondary data analysis of survey data
Da Silva, Damiao N; Zhang, Li-Chun (Peer reviewed; Journal article, 2019-11-21)In practical survey sampling, missing data are unavoidable due to nonresponse, rejected observations by editing, disclosure control, or outlier suppression. We propose a calibrated imputation approach so that valid point ... -
Cox regression with linked data
Vo, Thanh Huan; Garès, Valérie; Zhang, Li-Chun; Happe, André; Oger, Emmanuel; Paquelet, Stéphane; Chauvet, Guillaume (Peer reviewed; Journal article, 2023) -
The Effects of Using Administrative Registers in Economic Short Term Statistics: The Norwegian Labour Force Survey as a Case Study
Thomsen, Ib; Zhang, Li-Chun (Journal article; Peer reviewed, 2001)ABSTRACT: In the case of a single survey at one point in time, it is well known that combining administrative registers with survey data often substantially improves the quality of estimation. However, in short term ... -
Estimates for small area compositions subjected to informative missing data
Zhang, Li-Chun (Journal article; Peer reviewed, 2009)Abstract Estimation of small area (or domain) compositions may suffer from informative missing data, if the probability of missing varies across the categories of interest as well as the small areas. We develop a double ... -
Finite population small area interval estimation
Zhang, Li-Chun (Journal article; Peer reviewed, 2007)Small area intervall estimation is considered for a finite population, where the small area parameters are treated as fixed constants. Design based direct estimation yealds intervals that are too long to be useful. Model ... -
Graph sampling by lagged random walk
Zhang, Li-Chun (Peer reviewed; Journal article, 2021-12-10)We propose a family of lagged random walk sampling methods in simple undirected graphs, where transition to the next state (i.e., node) depends on both the current and previous states—hence, lagged. The existing random ... -
Maximum entropy classification for record linkage
Lee, Danhyang; Zhang, Li-Chun; Kim, Jae Kwang (Peer reviewed; Journal article, 2022)By record linkage one joins records residing in separate files which are believed to be related to the same entity. In this paper we approach record linkage as a classification problem, and adapt the maximum entropy ... -
Modeling and estimation methods for household size in the presence of nonignorable nonresponse applied to the Norwegian consumer expenditure survey
Belsby, Liv; Bjørnstad, Jan F.; Zhang, Li-Chun (Journal article; Peer reviewed, 2005)This paper considers the problem of estimating, in the presence of considerable nonignorable nonresponse, the number of private households of various sizes and the total number of households in Norway. The approach is ... -
A note on post-stratification when analyzing binary survey data subject to nonresponse
Zhang, Li-Chun (Journal article; Peer reviewed, 1999)In this article we presents some results regarding the effect of post-stratification when analyzing binary survey data to nonresponse. Assuming that nonresponse depends on the variable of interest which is missing for ... -
A note on the effect of auxiliary information on the variance of cluster sampling
Hagesæther, Nina; Zhang, Li-Chun (Journal article; Peer reviewed, 2009)A model-based synthesis is presented for a number of well-known results concerning the design effect of cluster sampling. This helps to yield a simpler perspective, making the design-based expressions more transparent. ... -
On some common practices of systematic sampling
Zhang, Li-Chun (Journal article; Peer reviewed, 2008)Systematic sampling is widely used technique in survey sampling. It is easy to execute, whether the units are to be selected with equal probability or with probabilities proportional to auxiliary sizes. It can be very ... -
On the Bias in Gross Labour Flow Estimates Due to Nonresponse and Misclassification
Zhang, Li-Chun (Journal article; Peer reviewed, 2005)Abstract: I evaluate and compare the bias due to nonresponse and misclassification in the sample gross labour flow estimates from the Norwegian Labour Force Survey (LFS). These help also to explain the level and net change ... -
Secure big data collection and processing: Framework, means and opportunities
Zhang, Li-Chun; Haraldsen, Gustav (Peer reviewed; Journal article, 2022)Statistical disclosure control is important for the dissemination of statistical outputs. There is an increasing need for greater confidentiality protection during data collection and processing by National Statistical ... -
Simultaneous estimation of the mean of a binary variable from a large number of small areas
Zhang, Li-Chun (Journal article; Peer reviewed, 2003)We develop a frequentist method of simultaneous small area estimation under hierarchical models. The simultaneous estimator is the best ensemble predictor under the model. It is preferable to the area-specific best predictor ... -
Simultaneous estimation under nested error regression model
Zhang, Li-Chun (Journal article; Peer reviewed, 2004)Zhang (2003) proposed a frequentist method of simultaneous small area estimation under hierarchical models. This can be useful when various ensemble characteristics of the small area parameters are of interest in addition ... -
A unit-error theory for register-based household statistics
Zhang, Li-Chun (Journal article; Peer reviewed, 2011)Abstract: The next round of censuses will be completely register-based in all the Nordic countries. Household is a key statistical unit in this context, which however does not exist as such in the administrative registers ... -
Weighting estimation under bipartite incidence graph sampling
Patone, Martina; Zhang, Li-Chun (Peer reviewed; Journal article, 2022)