Zach

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6,929 reputation

11754

bio	website	moderntoolmaking.blogspot.com
	location	San Francisco, CA
	age	26
visits	member for	2 years, 4 months
	seen	19 mins ago
stats	profile views	638

I'm a data hacker! http://www.kaggle.com/users/6696/zach

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190 Answers

votes activity newest

21	Obtaining knowledge from a random forest
20	Detecting significant predictors out of 300 independent variables
19	Software needed to scrape data from graph
17	What is your favorite “data analysis” cartoon?
14	Algorithms for automatic model selection

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6,929 Reputation

+5	Dimensionality reduction (SVD or PCA) on a large, sparse matrix
+5	Cross-validating time-series analysis
+5	Bootstrapping estimates of out-of-sample error
+10	Is it possible to use the caret package in R with non-numerical data?

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47 Questions

votes activity newest

35	Data APIs/feeds available as packages in R
26	Cloud computing platforms for machine learning
12	Fitting an ARIMAX model with regularization or penalization (e.g. with the lasso, elastic net, or ridge regression)
12	Sites for predictive modeling competitions
12	Why bother with low rank approximations?

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167 Tags

132 r × 104	47 data-visualization × 17
98 time-series × 50	44 model-selection × 10
84 machine-learning × 42	41 stepwise-regression × 3
65 regression × 33	39 random-forest × 10
58 forecasting × 26	39 feature-selection × 9

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32 Badges

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Nice Question × 8	Notable Question × 3
Popular Question × 11	Promoter
Custodian	Tumbleweed
Announcer	Yearling × 2
Nice Answer × 7	Enthusiast

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1,267 Votes Cast

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