Update: Social Harvest is going open source, see http://www.socialharvest.io for more information. My MongoSV 2011 talk about implementing machine learning and other algorithms in MongoDB. With a little real-world example at the end about what Social Harvest is doing with MongoDB. For more updates about my research, check out my blog at www.shift8creative.com

14. Stored JavaScript

15. Geo-spatial Indexing

16. Replication

20. Distributed performance benefits

41. MongoDB on a small VM Took 1.7 seconds

42. Compared to say PHP 33 seconds and timed out

43. More training data == exponentially faster than PHP

45. Your mileage will vary based on formula

46. You can cache certain values for speed

47. Don't forget about stored JavaScript (but use it wisely)

50. MongoDB will use JavaScript of course

51. Decent execution time

53. 663x faster than a web browser

55. 663x faster than a web browser

56. 7x slower than PHP PECL extension