# Jarrod Kahn

• ## Heli Skiing in Canada

Feb. 10, 2017

A post shared by Jarrod Kahn (@thekahnrad) on

• ## Regression, a Probabilistic Perspective

Feb. 7, 2017

Linear regression is a tool for explaining a linear relationship between a single scalar output variable $$y$$ and one or more explanatory variables $$\mathbf{x}$$. The model expresses this relationship through parameters $$\mathbf{w}$$. This gives rise to the typical representation for linear regression:

$\mathbf{\hat{y}} = \sum_{i=1}^N \mathbf{w}^T \mathbf{x}_i$

Where $$N$$ is the number of samples. For ordinary linear regression, the next step would be to simply define the mean squared error cost function, but in this case we want to find a probabilistic interpretation. This means we need to define a ...

• ## Vevo Data Science

Nov. 30, 2016

I coauthored a piece for Vevo about the data platform we built, give it a read.

Here is the full article:

November 23, 2016. Miguel Alvarado, Jarrod Kahn, Christian Termont & Chip Lambert

Over the last 18 months Vevo has started a process to re-boot the way it develops and releases products for its owned and operated properties. This has been no trivial effort for a company that had not historically prioritized its own products. The aesthetics of our new experiences on iOS, Android and tvOS have started to show our potential from a user experience standpoint but the infrastructure ...