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• 1. Network sampling with a bayesian approach Archived

  Articles and reports: 11-522-X20040018730

  Description:

  This paper considers a link-tracing sampling design. It describes the Bayesian approach for the estimation of social network properties and gives an example.

  Release date: 2005-10-27

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• 2. Multi-way stratification by linear programming made practical Archived

  Articles and reports: 12-001-X20020026433

  Description:

  Sitter and Skinner (1994) present a method which applies linear programming to designing surveys with multi-way stratification, primarily in situations where the desired sample size is less than or only slightly larger than the total number of stratification cells. The idea in their approach is simple, easily understood and easy to apply. However, the main practical constraint of their approach is that it rapidly becomes expensive in terms of magnitude of computation as the number of cells in the multi-way stratification increases, to the extent that it cannot be used in most realistic situations. In this article, we extend this linear programming approach and develop methods to reduce the amount of computation so that very large problems become feasible.

  Release date: 2003-01-29

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• 3. Coordinating samples using the microstrata methodology Archived

  Articles and reports: 11-522-X20010016252

  Description:

  This paper discusses in detail issues dealing with the technical aspects of designing and conducting surveys. It is intended for an audience of survey methodologists.

  The use of sample co-ordination in business surveys is crucial because it provides a way of smoothing out the survey burden. In many co-ordination methodologies, the random numbers representing the units are permanent and the sample selection method varies. In the microstrata methodology, however, it is the selection function that is permanent. On the other hand, random numbers are systematically rearranged between units for different co-ordination purposes: smoothing out the burden, updating panels or minimizing the overlap between two surveys. These rearrangements are made in the intersections of strata, known as microstrata. This microstrata method has good, mathematical properties and demonstrates a general approach to sample co-ordination in which births, deaths and strata changes are automatically handled. There are no particular constraints on stratification and rotation rates of panels. Two software programs have been written to implement this method and its evolutions: SALOMON in 1998, and MICROSTRAT in 2001.

  Release date: 2002-09-12

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• 1. Network sampling with a bayesian approach Archived

  Articles and reports: 11-522-X20040018730

  Description:

  This paper considers a link-tracing sampling design. It describes the Bayesian approach for the estimation of social network properties and gives an example.

  Release date: 2005-10-27

  ---

• 2. Multi-way stratification by linear programming made practical Archived

  Articles and reports: 12-001-X20020026433

  Description:

  Sitter and Skinner (1994) present a method which applies linear programming to designing surveys with multi-way stratification, primarily in situations where the desired sample size is less than or only slightly larger than the total number of stratification cells. The idea in their approach is simple, easily understood and easy to apply. However, the main practical constraint of their approach is that it rapidly becomes expensive in terms of magnitude of computation as the number of cells in the multi-way stratification increases, to the extent that it cannot be used in most realistic situations. In this article, we extend this linear programming approach and develop methods to reduce the amount of computation so that very large problems become feasible.

  Release date: 2003-01-29

  ---

• 3. Coordinating samples using the microstrata methodology Archived

  Articles and reports: 11-522-X20010016252

  Description:

  This paper discusses in detail issues dealing with the technical aspects of designing and conducting surveys. It is intended for an audience of survey methodologists.

  The use of sample co-ordination in business surveys is crucial because it provides a way of smoothing out the survey burden. In many co-ordination methodologies, the random numbers representing the units are permanent and the sample selection method varies. In the microstrata methodology, however, it is the selection function that is permanent. On the other hand, random numbers are systematically rearranged between units for different co-ordination purposes: smoothing out the burden, updating panels or minimizing the overlap between two surveys. These rearrangements are made in the intersections of strata, known as microstrata. This microstrata method has good, mathematical properties and demonstrates a general approach to sample co-ordination in which births, deaths and strata changes are automatically handled. There are no particular constraints on stratification and rotation rates of panels. Two software programs have been written to implement this method and its evolutions: SALOMON in 1998, and MICROSTRAT in 2001.

  Release date: 2002-09-12

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