Machine Learning with Node.js and PredictionIO

I repeated my talk on Machine Learning with Node.js and PredictionIO from Vienna.js at the Node.js Vienna Meetupon May 13, 2014. These slides are basically the same. The code of the demo is on Github: https://github.com/florianeckerstorfer/viennajs-predictionio

Transcript

1. Machine Learning with Node.js and PredictionIO
2. Florian Eckerstorfer Developer in Vienna Node.js Vienna Meetup, 13 May 2014
3. Machine Learning Prediction.io Demo 1 2 3
4. Machine Learning 1
5. Machine learning, a branch of artificial intelligence, concerns the construction and study of systems that can learn from data. wikipedia.org/wiki/Machine_learning
6. Classification
7. Name Creator Network Episode Length Genre The Sopranos David Chase HBO 60 Drama Weeds Jenji Kohan Showtime 30 Comedy Girls Lena Dunham HBO 30 Comedy Orange Is The New Black Jenji Koahn Netflix 30 ?
8. S S S S S S S S S S S S S S S S S S 1. Training
9. 2. Generalisation S S S S S S S S S
10. 3. Pattern Matching S ? S
11. k-nearest neighbours
12. kNN
13. 1 1 2 k=3
14. 1 1 2 k=5 2 3
15. k-Nearest Neighbours Decision Trees Support Vector Machines Neural Networks Bayesian Networks
16. Trade Offs Time Memory Accuracy Algorithm vs. Problem
17. PredictionIO 2
18. Machine Learning Server
19. Scala MongoDB Hadoop Apache Mahout
20. PredictionIO Server Admin Web UI Admin Server Engine A Engine B Algorithm X Algorithm Y Algorithm S Algorithm T Workflow Scheduler MapReduce Engine Hadoop Distributed File System Predictive Model Storage Databases REST API Servers SDK SDK Web App Mobile App Ω Ω
21. And now in Node.js
22. predictionio-client npm install
23. var p = require(‘predictionio-client') p.config.APP_KEY = ‘…’; p.config.APP_URL = ‘http://localhost:8000'; p.user.createUser(‘florian’, function() {}); p.item.createItem(‘game of thrones’, 'show', function () {}); p.action.like(‘florian’, ‘game of thrones’, function() {}); p.engine.recommendedItems('itemrec', ‘florian’, 5, function (a,data) { console.log(data); });
24. Demo 3
25. github.com/florianeckerstorfer/viennajs-predictionio or shrt.at/1tP
26. PredictionIO. prediction.io PredictionIO-NodeJS-Client. github.com/ kostyantyn/PredictionIO-NodeJS-Client PredictionIO on Vagrant. docs.prediction.io/ current/installation/install-predictionio-with- virtualbox-vagrant.html Tom Mitchell. Machine Learning, McGraw Hill, 1997
27. Florian Eckerstorfer florian@eckerstorfer.co http://florian.ec @Florian_
28. Questions?