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- Robin Mitra, Jerome P. Reiter
- Privacy in Statistical Databases
- 2006

Statistical agencies alter values of identifiers to protect re-spondents' confidentiality. When these identifiers are survey design variables , leaving the original survey weights on the file can be a disclosure risk. Additionally, the original weights may not correspond to the altered values, which impacts the quality of design-based (weighted) inferences.… (More)

To limit disclosures, statistical agencies and other data disseminators can release partially synthetic, public use microdata sets. These comprise the units originally surveyed, but some collected values, for example sensitive values at high risk of disclosure or values of key identifiers, are replaced with multiple draws from statistical models. Because… (More)

- Robin Mitra, David Dunson
- The international journal of biostatistics
- 2010

Stochastic search variable selection (SSVS) algorithms provide an appealing and widely used approach for searching for good subsets of predictors while simultaneously estimating posterior model probabilities and model-averaged predictive distributions. This article proposes a two-level generalization of SSVS to account for missing predictors while… (More)

- Robin Mitra, Jerome P Reiter
- Statistics in medicine
- 2011

In many observational studies, analysts estimate causal effects using propensity scores, e.g. by matching, sub-classifying, or inverse probability weighting based on the scores. Estimation of propensity scores is complicated when some values of the covariates are missing. Analysts can use multiple imputation to create completed data sets from which… (More)

- Min Cherng Lee, Robin Mitra
- Computational Statistics & Data Analysis
- 2016

Multiple imputation is a commonly used approach to deal with missing values. In this approach, an imputer repeatedly imputes the missing values by taking draws from the posterior predictive distribution for the missing values conditional on the observed values, and releases these completed data sets to analysts. With each completed data set the analyst… (More)

- Sana Rashid, Robin Mitra, R. J. Steele
- Computational Statistics & Data Analysis
- 2015

- Lucia Steenkamp, Kgama Mathiba, +4 authors Dean Brady
- Journal of Industrial Microbiology…
- 2012

Leaf exudates from Aloe species, such as the Southern African Aloe ferox, are used in traditional medicines for both humans and livestock. This includes aloesin, a skin bleaching product that inhibits the synthesis of melanin. Aloesin, (a C-glycoside-5-methylchromone) can be released from aloeresin A, an ester of aloesin, through hydrolysis. The objective… (More)

To limit disclosures, statistical agencies and other data disseminators can release partially synthetic, public use microdata sets. These comprise the units originally surveyed, but some collected values, for example sensitive values at high risk of disclosure or values of key identifiers, are replaced with multiple draws from statistical models. Because… (More)

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