Maurice Tweedie

Education

University of Reading.

Career

General) and Bachelor of Science (special) in physics in 1939 followed by a Master of Science in physics 1941. This included pioneering work with the inverse Gaussian distribution. As a consequence of these properties the Tweedie exponential dispersion models are characterized by a power law relationship between the variance and the mean which leads them to become the foci of convergence for a central limit like effect that acts on a wide variety of random data.

The range of application of the Tweedie distributions is wide and includes:

Taylor"s law,

fluctuation scaling,

1/f noise,

random matrix theory,

hematogenous cancer metastasis,

genomic structure and evolution,

regional blood flow heterogeneity,

multifractality. self-organized criticality.

Achievements

• He read physics at the University of Reading and attained a Bachelor of Science He found a career in radiation physics, but his primary interest was in mathematical statistics where his accomplishments far surpassed his academic postings. Arguably his major achievement rests with the definition of a family of exponential dispersion models characterized by closure under additive and reproductive convolution as well as under transformations of scale that are now known as the Tweedie exponential dispersion models.