1 This paper reports the results of research and analysis undertaken by Census Bureau staff. It has undergone a more limited review than official Census Bureau publications. This report is released to inform interested parties of research and to encourage discussion. 2 Carole Popoff and D. H. Judson of the U.S. Census Bureau, Brett O’Hara of the Social Security Administration.

This paper reports the results of research and analysis undertaken by Census Bureau staff. It has undergone a Census Bureau review more limited in scope than that given to official Census Bureau publications. This report is released to inform interested parties of ongoing research and to encourage discussion of work in progress.

Following the problems with estimating underenumeration in the 1991 Census of England and Wales the aim for the 2001 Census is to create a database that is fully adjusted for net underenumeration. To achieve this, the paper investigates weighted donor imputation methodology that utilises information from both the census and census coverage survey (CCS). The US Census Bureau has considered a sim...

The main purpose of this paper is to report on an initial validation of methods for dealing with micro-census data with no delineated households. After describing the 1819 census of Rostock we test the possibilities of using an algorithm that creates households according to a strictly defined set of rules. The census of 1867 will be taken as our reference point for designing such rules of assig...

In 1997, the National Agricultural Statistics Service (NASS) was granted the responsibility of conducting the Census of Agriculture. This census was previously conducted by the U.S. Department of Commerce. Since NASS conducts many ongoing sample surveys on the Census of Agriculture’s target population, the opportunity arose to investigate alternative data sources to measure various aspects of t...

92% of the 38 responding countries conduct livestock census, of which 18 follow scheduled programmes. Of the 15 countries that have an ad hoc programme, only 8 have legislation supporting livestock census either within the veterinary services, the central statistics authority or to a limited extent within the Ministry of Livestock/Agriculture. There was no apparent relationship between absence ...

We sought to use machine learning algorithms to predict K-5 school enrollment counts across census tracts and across years within Community District 20 in New York City. We used census data and historical counts as our input, and output enrollment count predictions for grades, census tracts and future years.

Quorum sensing is the regulation of gene expression in response to changes in cell density. To measure their cell density, bacterial populations produce and detect diffusible molecules called autoinducers. Individual bacteria internally represent the external concentration of autoinducers via the level of monitor proteins. In turn, these monitor proteins typically regulate both their own produc...

Recent years have seen widespread use of small-area maps based on census data enriched by relationships estimated from household surveys that predict variables, such as income, not covered by the census. The purpose is to obtain putatively precise estimates of poverty and inequality for small areas for which no or few observations are available in the survey. We argue that to usefully match sur...

Disclaimer: This report is released to inform interested parties of research and to encourage discussion. The views expressed are those of the author and not necessarily those of the U.S. Census Bureau. This paper reports the results of research and analysis undertaken by Census Bureau staff. It has undergone a Census Bureau review 1 more limited in scope than that given to official Census Bure...