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Author: Lonnie Chrisman

Lonnie Chrisman

Lonnie Chrisman

Lonnie Chrisman is Lumina's Chief Technical Officer, where he heads engineering and development of Analytica. He has a PhD in Artificial Intelligence and Computer Science from Carnegie Mellon University and a Bachelor’s degree in Electrical Engineering from University of California at Berkeley.

Author Posts

07/08/2024 | Blogs, Data mining, statistics, & AI, Risk & uncertainty

Latin hypercube vs. Monte Carlo sampling

In a post on LinkedIn, David Vose argues that the advantages of Latin Hypercube sampling (LHS) over Monte Carlo are so minimal that “LHS does not deserve a place in modern…

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04/28/2024 | Blogs, Data mining, statistics, & AI

Does GPT-4 pass the Turing test?

UCSD researchers conducted an online Turing test of GPT-4 with 652 human participants. Humans were not fooled ~60% of the time.

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06/23/2023 | Blogs, Data mining, statistics, & AI, Risk & uncertainty

AI weekly updates with Lonnie Chrisman

Get the latest AI insights with Lonnie Chrisman’s weekly updates. Follow us on social for trends and developments from an AI expert.

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02/10/2023 | Analytica in the cloud, Blogs, Energy & power, Environment & climate

The effects of gas prices and electricity tariffs on heat pump economics

You might expect that a spike in natural gas prices from Russia’s war on Ukraine would lower carbon emissions—making electrification more economical. However, that is not the case.

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03/14/2022 | Blogs, Data mining, statistics, & AI, Risk & uncertainty

Pi Day comparison: Monte Carlo vs Latin hypercube vs Sobol sampling

This blog will be visiting the dart-throwing method of estimating π and comparing how fast or slow different sampling techniques converge to the actual value of π. The sampling techniques…

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08/26/2021 | Blogs, Decision analysis & multi-criteria, Health & pharmaceuticals

The deadly pillow fallacy

On the surface it seems absurd that a pillow could cause all that death and disease. But, you should be careful not to let your preconceived beliefs taint your analysis of the data.

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05/21/2020 | Blogs, Open-source models

Voluntary vs. mandatory testing for naval crew selection

As COVID-19 testing becomes a routine part of doing business, some operations face the question of whether testing should be mandatory or voluntary.

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04/23/2020 | Blogs

Early COVID-19 decay rates for countries that have peaked

In previous articles [C20a, H20], my colleague and I have written about how the number of cases and deaths from COVID-19 follows a triangle shape over time when plotted with…

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