Editing Machine Learning Meetup Notes:2011-4-13
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Anthony Goldbloom from Kaggle Visits | Anthony Goldbloom from Kaggle Visits | ||
* | **Guy used random forests to win HIV competition. Word "random forests" is trademarked. Dude taught himself machine learning from watching youtube videos. Random forests are pretty robust to new data. | ||
*Guy used random forests to win HIV competition. Word "random forests" is trademarked. Dude taught himself machine learning from watching youtube videos. Random forests are pretty robust to new data. | ***Used [http://cran.r-project.org/web/packages/caret/ caret] package in R to deal with random forests. | ||
**Used [http://cran.r-project.org/web/packages/caret/ caret] package in R to deal with random forests. | **Kaggle splits test dataset into two, uses half for leaderboard. | ||
*Kaggle splits test dataset into two, uses half for leaderboard. | **Often score difference between winning model and second place is not statistically significant. So they award prizes to top few. Might impose restrictions on execution time of model. | ||
*Often score difference between winning model and second place is not statistically significant. So they award prizes to top few. Might impose restrictions on execution time of model | |||