Engaging Willard Hurst: A Symposium

Willard Thompson

Complexity theory has a profound influence on the field of cryptology. The time complexity of breaking a cipher system must be significant enough to thwart any adversary from succeeding. However, with the emergence of quantum computers an adversary may have no difficulty in breaking known cipher systems. If quantum computers would exist today new mechanisms for security would need to be built. ...

Willard Burr Soper

Estimating the Hurst Exponent

The Hurst Exponent is a dimensionless estimator for the self-similarity of a time series. Initially defined by Harold Edwin Hurst to develop a law for regularities of the Nile water level, it now has applications in medicine and finance. Meaningful values are in the range [0, 1]. Different methods for estimating the Hurst Exponent have been evaluated: The classical “Rescaled Range” method devel...

Samual Willard: An Unreliable Narrator

Willard E. Goodwin: educator, innovator and pioneer.

Willard E. Goodwin was born to Willard and Olive (Belt) Goodwin on July 24, 1915 in Los Angeles, California and died on July 22, 1998, just 2 days short of his 83rd birthday (fig. 1). Willard and his younger brother by 8 years, Donald A. Goodwin, grew up in La Cañada, California, an area just outside of Pasadena in the foothills of the San Gabriel Mountains, where their nearest neighbors were n...