building a beer recommender with yhat (papis.io - november 2014)
DESCRIPTION
Building the predictive aspect of applications is the fun, sexy part. New tools like scikit-learn, pandas, and R have made building models less painful, but deploying/embedding models into production applications is challenging. We'll show how Yhat makes deploying predictive models written in Python or R fast and easy by building a beer recommendation system and an accompanying webapp.TRANSCRIPT
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Building a Beer Recommender with Yhat
PAPIs.ioNovember 2014
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1) Intro2) The Problem: Building predictive apps3) Solutions4) Case Study: Beer Recommender5) Demo6) Q/A
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Here I am on the Internet.
Founder/CTO @ Yhat
Hi, I’m Greg!
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Founders Company
InvestorsGreg Lamp, CTO
Austin Ogilvie, CEO ● Launched in 2013● HQ in New York
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Why is Data Science so talked about?
regression
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Get Raw Data
Strategic Insights
Real World Scoring
Data Driven ProductsBusiness Impact
Clean Data
Stages of the Analytics Project Life Cycle
Expert data teams
Management
Customers & Front Line Employees
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What makes building analytical apps hard?
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Hi, I’m Trey.
Meet Trey, the Data Scientist
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We need to reduce churn. Okay. I'll look into it.
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I figured out that....some complex stuff about vector space that'll improve...
....and that's how we'll reduce churn.
Sounds good. Let's do that...
The "a ha" moment isn't the end.
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Any of you know what Gradient Boosting is?
So when can we go live with the new model?
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Now what?
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Options
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1) Translate Code
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2 Rebel Policemen 2
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2) PMML
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?
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3) Batch Jobs
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use your tools
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use your tools move quickly
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use your tools move quickly
any workflow
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use your tools move quickly
any workflow no translating
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Case Study
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+ = ?
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A Beer Recommender in Python
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The Data
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http://snap.stanford.edu/data/web-BeerAdvocate.html
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Beers
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Users
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Ratings
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Distance
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vs
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vs
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measuring similarity
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eeny
? ?
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eeny meeny
?
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?Cosine
eeny meeny miny
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?Cosine
moe
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pick one.you can always
change
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Thank you,
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Scoring
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Aggregate
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Sort
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Filter
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Return
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Deployment
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What does this mean?
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Import Yhat
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Create a YhatModel
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Define execute
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Grab incoming data
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Call your function
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Format and return results
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We’re [email protected]
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Appendix
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アーノルド坊やは人気者Little Arnold Boy is Popular
Diff’rent Strokes
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Unitless y-axis
Time