Record Linkage for nineteenth-century census returns: automatic or computer-aided?

1997 ◽  
Vol 9 (1-3) ◽  
pp. 122-133 ◽  
Author(s):  
Peter Tilley ◽  
Christopher French
Keyword(s):  
Nineteenth Century ◽  
Record Linkage ◽  
Multiple Pass ◽  
Computer Aided

Should record linkage for nineteenth century census records be based on multiple pass algorithms using list unique records or are there more effective ways of establishing true matches? This paper considers both multiple pass algorithms and some alternatives, and finds that the alternatives can indeed be more effective.

Record Linkage Theory and Practice: A Matter of Confidence

1997 ◽  
Vol 9 (1-3) ◽  
pp. 150-155
Author(s):  
Peter Adman
Keyword(s):  
Record Linkage ◽  
Theory And Practice ◽  
Recent Issue ◽  
Parliamentary Elections ◽  
Confidence Levels ◽  
Multiple Pass ◽  
Linkage Rate ◽  
Paper Record ◽  
The City

In a recent issue of this journal (Vol.8 no.2) the paper ‘Record linkage theory and practice: an experiment in the application of multiple pass linkage algorithms’ by Charles Harvey, Edmund Green and Penelope J. Corfield described the advances the authors have made on their previously published work. By using a multiple pass methodology they increased the linkage rate between two successive polls (1784 and 1788) from one-fifth to nearly three-fifths of the voters in the parliamentary elections for the City of Westminster. This critique examines the validity of their claims with regard to the confidence levels attained.

Record Linkage Theory and Practice: an Experiment in the Application of Multiple Pass Linkage Algorithms

1996 ◽  
Vol 8 (2) ◽  
pp. 78-89 ◽  
Author(s):  
Charles Harvey ◽  
Edmund M Green ◽  
Penelope J Corfield
Keyword(s):  
Record Linkage ◽  
Theory And Practice ◽  
Multiple Pass

By implementing multiple-pass record linkage algorithms between two compatible datasets, the number of records linked may be dramatically increased above the level achieved by any single algorithm. This increase is made without commensurate diminution in confidence in the linked dataset.

Perspectives on Historical U.S. Census Undercounts

1995 ◽  
Vol 19 (4) ◽  
pp. 455-466 ◽  
Author(s):  
Miriam L. King ◽  
Diana L. Magnuson
Keyword(s):  
Nineteenth Century ◽  
Record Linkage ◽  
National Level ◽  
Local Communities ◽  
Linkage Studies ◽  
Sources Of Information

There are three sources of information about undercounts in nineteenth-century U.S. censuses: demographic analyses of net undercounts by age, sex, and race at the national level; record-linkage studies of gross undercounts for local communities; and contemporary testimony of the types and bases of underenumeration. This article reviews the strengths and limitations of each of these sources, assesses the extent of their agreement, and discusses the bases of their disagreement.

Computer-aided methods for 3-D visualization of serial sections and thick biological specimens

1992 ◽  
Vol 50 (2) ◽  
pp. 1060-1061
Author(s):  
Mark Ellisman ◽  
Maryann Martone ◽  
Gabriel Soto ◽  
Eleizer Masliah ◽  
David Hessler ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Three Dimensional ◽  
Neuritic Plaque ◽  
Dimensional Structure ◽  
Data Sets ◽  
Molecular Physiology ◽  
Research Activities ◽  
Computer Aided ◽  
Dimensional Reconstruction

Structurally-oriented biologists examine cells, tissues, organelles and macromolecules in order to gain insight into cellular and molecular physiology by relating structure to function. The understanding of these structures can be greatly enhanced by the use of techniques for the visualization and quantitative analysis of three-dimensional structure. Three projects from current research activities will be presented in order to illustrate both the present capabilities of computer aided techniques as well as their limitations and future possibilities.The first project concerns the three-dimensional reconstruction of the neuritic plaques found in the brains of patients with Alzheimer's disease. We have developed a software package “Synu” for investigation of 3D data sets which has been used in conjunction with laser confocal light microscopy to study the structure of the neuritic plaque. Tissue sections of autopsy samples from patients with Alzheimer's disease were double-labeled for tau, a cytoskeletal marker for abnormal neurites, and synaptophysin, a marker of presynaptic terminals.

Three-Dimensional Subcellular Organization of Hepatocytes in Intact Liver: Simultaneous Visualization of Cytoskeletal and Membrane Markers by Confocal Microscopy

1996 ◽  
Vol 54 ◽  
pp. 288-289
Author(s):  
Greg V. Martin ◽  
Ann L. Hubbard
Keyword(s):  
Three Dimensional ◽  
Integral Membrane Proteins ◽  
Polarized Secretion ◽  
Microscope Images ◽  
Computer Aided ◽  
Intracellular Organelles ◽  
Cytoskeletal Elements ◽  
Simultaneous Visualization

The microtubule (MT) cytoskeleton is necessary for many of the polarized functions of hepatocytes. Among the functions dependent on the MT-based cytoskeleton are polarized secretion of proteins, delivery of endocytosed material to lysosomes, and transcytosis of integral plasma membrane (PM) proteins. Although microtubules have been shown to be crucial to the establishment and maintenance of functional and structural polarization in the hepatocyte, little is known about the architecture of the hepatocyte MT cytoskeleton in vivo, particularly with regard to its relationship to PM domains and membranous organelles. Using an in situ extraction technique that preserves both microtubules and cellular membranes, we have developed a protocol for immunofluorescent co-localization of cytoskeletal elements and integral membrane proteins within 20 µm cryosections of fixed rat liver. Computer-aided 3D reconstruction of multi-spectral confocal microscope images was used to visualize the spatial relationships among the MT cytoskeleton, PM domains and intracellular organelles.

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