Edwin Chen

MARCH 13, 2011

I’m now (very slowly) trying to clean up my notes and put them online. For example, to predict how you would rate the first Harry Potter movie, the user-based approach looks at how your friends rated the first Harry Potter movie, while the item-based approach looks at how you rated movies like Lord of the Rings and Twilight.

Optimization 40

Optimization Modeling Cost-Benefit Measurement 40

Occam's Razor

AUGUST 22, 2011

Here you'll find all my blog posts categorized into a structure that will hopefully make it easy for you to discover new content, find answers to your questions, or simply wallow in some excellent analytics narratives. How can my company become great? . How can my company become great?" My Friend John.

KPI 124

KPI Metrics Measurement ROI 124

Occam's Razor

JULY 18, 2011

What can I do to ensure that my email goes to the right folder? ]. Update: John Duffy, in comments below, has a great tip: Segment delivery rates by Email Service Provider (ESP). In my earlier posts you might have seen me refer to this as “your Macro Conversion,” the most important thing to your business when you use email marketing.

Metrics 137

Metrics Marketing Measurement Cost-Benefit 137

Edwin Chen

AUGUST 21, 2011

My sister adopted a kitten yesterday. Introduction. Suppose you have the following set of sentences: I like to eat broccoli and bananas. I ate a banana and spinach smoothie for breakfast. Chinchillas and kittens are cute. Look at this cute hamster munching on a piece of broccoli. What is latent Dirichlet allocation?

Snapshot 81

Snapshot Modeling Reporting Management 81