Keith McNulty
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Leader in Technology, Organizational Sciences and Analytics | Mathematician, Statistician and Psychometrician | Author and Teacher | Coder, Engineer, Architect
United Kingdom
71K followers
500+ connections
About
Mathematician, statistician, analytics leader, Industrial-Organizational Psychologist, Psychometrician and Data Scientist in R and Python. Author of textbooks Handbook of Regression Modeling (2021) and Handbook of Graphs and Networks (2022). Evidence-based practitioner with an extensive background in Mathematics, Statistical Programming, I-O Psych, Machine Learning and Artificial Intelligence. Passionate about future of work, rigorous quantitative methods in research and open source knowledge. Opinions expressed are entirely personal.
Articles by Keith
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A Somewhat Psychopathic Introduction to Bayesian Statistics
A Somewhat Psychopathic Introduction to Bayesian Statistics
I was recently taken aback to discover a question about bodies in a refrigerator on an old mathematics exam paper from…
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Can a Horse Do Math? The Story Of Clever Hans and a Statistics Problem He Inspired
Can a Horse Do Math? The Story Of Clever Hans and a Statistics Problem He Inspired
In 1904, a panel convened by the German Board of Education decided that a horse was capable of doing math. Read that…
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A Fun Introduction to the Concept of Bayesian Statistics
A Fun Introduction to the Concept of Bayesian Statistics
I recently came across this very hard looking and creatively articulated problem in an old entrance examination paper…
20 Comments
Activity
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This is cloud cuckoo land. A small drop in interest rates does not make housing more affordable. A drop in the cost of housing would make housing…
This is cloud cuckoo land. A small drop in interest rates does not make housing more affordable. A drop in the cost of housing would make housing…
Liked by Keith McNulty
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This paper published last year by Human Evolutionary Biologists at Harvard indicates that - when used for typical cognitive tasks - the similarity…
This paper published last year by Human Evolutionary Biologists at Harvard indicates that - when used for typical cognitive tasks - the similarity…
Shared by Keith McNulty
Experience
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McKinsey & Company
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Author
Handbook of Graphs and Networks in People Analytics
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Author
Handbook of Regression Modeling in People Analytics
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McKinsey & Company
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Education
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Imperial College London
Doctor of Philosophy (Ph.D.) Pure Mathematics Diploma of Imperial College
I proved EH Lieb's Permanent Dominance Conjecture, first posited in 1911, for all n x n Hermitian Positive Semidefinite matrices of rank at most 4.
I designed a computational structure to test for positivity of matrix functions on n x n Totally Positive Matrices, establishing a simple set of test matrices for small n. It has recently been shown that this general problem is NP-hard. -
Imperial College London
Bachelor’s Degree Pure Mathematics First Class Honours, Governor's Award for Greatest Academic Merit
Majored in Algebraic and Analytic disciplines including Discrete Mathematics, Code Theory, Elementary and Algebraic Number Theory, Group Theory, Group Representation Theory, Module Theory, Linear Algebra, Galois Theory, Real and Complex Analysis and Functional Analysis.
Minored in Mathematical Methods, Mechanics and Dynamics and Statistics. -
Royal College of Music
Imperial College/Royal College of Music Scholar Early Music
Scholar in Early Music, specializing in the Recorder.
Licenses & Certifications
Skills
More activity by Keith
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Had a great time with the Team at McKinsey, talking people analytics, knowledge graphs and more. The Meals on Wheels staff and facility were…
Had a great time with the Team at McKinsey, talking people analytics, knowledge graphs and more. The Meals on Wheels staff and facility were…
Liked by Keith McNulty
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We had our global People Analytics team meeting in Atlanta over the past couple of days, and it was great to welcome Alexis Fink, Jeff Polzer and…
We had our global People Analytics team meeting in Atlanta over the past couple of days, and it was great to welcome Alexis Fink, Jeff Polzer and…
Shared by Keith McNulty
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I have many books on my shelves, but these are the two I reference the most frequently for my work and teaching. They are two of the best purchases…
I have many books on my shelves, but these are the two I reference the most frequently for my work and teaching. They are two of the best purchases…
Shared by Keith McNulty
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My plane hack is to always have a pen, paper and math problem available for take off and landing. The time goes by so quickly and my brain gets a…
My plane hack is to always have a pen, paper and math problem available for take off and landing. The time goes by so quickly and my brain gets a…
Shared by Keith McNulty
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I was asked recently to describe the difference between R and Python. Always a controversial topic, but as someone who has pretty extensive…
I was asked recently to describe the difference between R and Python. Always a controversial topic, but as someone who has pretty extensive…
Posted by Keith McNulty
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One of the biggest sources of decision errors is when conclusions are made about a larger population based on a small and often biased sample.…
One of the biggest sources of decision errors is when conclusions are made about a larger population based on a small and often biased sample.…
Shared by Keith McNulty
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Super excited to announce that I am signing a contract with CRC Press to produce a second (and majorly expanded) edition of my regression textbook.…
Super excited to announce that I am signing a contract with CRC Press to produce a second (and majorly expanded) edition of my regression textbook.…
Shared by Keith McNulty
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Poisson regression is a method used to explain or predict outcomes that involve the number of occurrences of an event of interest in a fixed time…
Poisson regression is a method used to explain or predict outcomes that involve the number of occurrences of an event of interest in a fixed time…
Shared by Keith McNulty
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One fairly straightforward way to elucidate training bias in language models is to construct a prompt as follows: 1. Introduce an interaction…
One fairly straightforward way to elucidate training bias in language models is to construct a prompt as follows: 1. Introduce an interaction…
Shared by Keith McNulty
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Yann LeCun speaking total truth about the whole AGI myth and explaining exactly why language models do not equate to general intelligence and never…
Yann LeCun speaking total truth about the whole AGI myth and explaining exactly why language models do not equate to general intelligence and never…
Shared by Keith McNulty
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Yet more people analytics/quant psych roles at McKinsey - this one is in our People and Organizational Performance practice working with amazing…
Yet more people analytics/quant psych roles at McKinsey - this one is in our People and Organizational Performance practice working with amazing…
Shared by Keith McNulty
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More great opportunities to work with McKinsey's People Analytics and Measurement (PAM) team - among the most technically advanced practitioner teams…
More great opportunities to work with McKinsey's People Analytics and Measurement (PAM) team - among the most technically advanced practitioner teams…
Shared by Keith McNulty
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While cleaning out my Github repos, I just looked at the very first code project I wrote in 2016. At first I was embarassed, because I could write…
While cleaning out my Github repos, I just looked at the very first code project I wrote in 2016. At first I was embarassed, because I could write…
Posted by Keith McNulty
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