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Advanced Analytics | Analytics | Customer Intelligence

Economías con mayor cultura analítica y apropiación de IA son las que más crecen en Latam

SAS ColombiaJuly 24, 2020 0

Conciencia situacional, ¿cómo las tecnologías exponenciales ayudan a tomar mejores decisiones frente al COVID-19?

Los gobiernos y los diferentes sectores están creando protocolos para reactivar muchas de las actividades que solíamos hacer antes de la pandemia reduciendo los riesgos. Ante esta nueva etapa de apertura y reactivación, ¿se ha puesto a pensar en el tipo de decisiones que tiene que empezar a tomar ahora?

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Communications | Government

Advanced Analytics | Machine Learning | Programming Tips

Rick WicklinJuly 23, 2020 0

Fit a multivariate Gaussian mixture model by using the expectation-maximization (EM) algorithm

Last month a SAS programmer asked how to fit a multivariate Gaussian mixture model in SAS. For univariate data, you can use the FMM Procedure, which fits a large variety of finite mixture models. If your company is using SAS Viya, you can use the MBC or GMM procedures, which

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Advanced Analytics | Programming Tips

Rick WicklinJuly 15, 2020 0

How to evaluate the multivariate normal log likelihood

The multivariate normal distribution is used frequently in multivariate statistics and machine learning. In many applications, you need to evaluate the log-likelihood function in order to compare how well different models fit the data. The log-likelihood for a vector x is the natural logarithm of the multivariate normal (MVN) density

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