A Precedent Built on Sand: NorCon v. Niagara Mohawk

The Potts model built on sand

We consider the q = 4 Potts model on the square lattice with an additional nonlocal interaction. That interaction arises from the choice of the reference measure taken to be the uniform measure on the recurrent configurations for the abelian sandpile model. In that reference measure some correlation functions have a power-law decay. We investigate the low-temperature phase diagram and we prove ...

Not built on sand - how modern authentication complements federation

Even after 40 years of IT innovations, passwords are still the most widely used authentication method. They are inherently insecure. Neither users nor service providers handle passwords appropriately. On the other hand more than 1 billion Trusted Platform Modules (TPMs) and more than 150 million secure elements have been shipped; microphones and cameras are integrated in most smart phones and f...

2 00 3 The Potts model built on sand

We consider the q = 4 Potts model on the square lattice with an additional hard-core nonlocal interaction. That interaction arises from the choice of the reference measure taken to be the uniform measure on the recurrent configurations for the abelian sandpile model. In that reference measure some correlation functions have a power-law decay. We investigate the low-temperature phase diagram and...

Notes on Sand-Flies. Part V

Model complexity and information in the data: could it be a house built on sand?

Heisey et al. (2010), in an interesting paper, try to address a very difficult problem of analyzing spatially referenced, age specific prevalence data. The general goal of the analysis is to understand how force of infection changes as a function of age, time, and space. To further complicate matters, all the data considered in the paper are censored observations. Binary data are notoriously di...