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Haitao Du

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30,218

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93/100 score

20/20 answers

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181 posts edited

127 helpful flags

2,995 votes cast

Answers (531)

Votes Activity Newest

55	Regularization methods for logistic regression
54	Why is 600 out of 1000 more convincing than 6 out of 10?
37	Is there any intuitive explanation of why logistic regression will not work for perfect separation case? And why adding regularization will fix it?
30	How could stochastic gradient descent save time compared to standard gradient descent?
29	Is an overfitted model necessarily useless?

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Reputation (30,218)

+10	Is there any intuitive explanation of why logistic regression will not work for perfect separation case? And why adding regularization will fix it?
+20	Are neural networks better than SVMs?
+10	What is the relation between belief networks and Bayesian networks?
+10	Is spline basis orthogonal?

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Questions (194)

Votes Activity Newest

110	Is it possible to train a neural network without backpropagation?
39	Why are survival times assumed to be exponentially distributed?
38	Is LSTM (Long Short-Term Memory) dead?
33	If I generate a random symmetric matrix, what's the chance it is positive definite?
30	Can degrees of freedom be a non-integer number?

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Tags (366)

607 machine-learning × 259	156 classification × 61
406 regression × 151	139 optimization × 63
234 logistic × 82	115 regularization × 28
198 neural-networks × 79	93 svm × 27
167 r × 110	93 boosting × 26

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Bookmarks (366)

Votes Activity Newest Views Added

1148	Making sense of principal component analysis, eigenvectors & eigenvalues
661	How to choose the number of hidden layers and nodes in a feedforward neural network?
566	What is the difference between “likelihood” and “probability”?
492	What is the intuition behind beta distribution?
478	Why square the difference instead of taking the absolute value in standard deviation?

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Accounts (18)

	Cross Validated	30,218 rep	14 gold badges101 silver badges196 bronze badges
	Stack Overflow	815 rep	1 gold badge10 silver badges20 bronze badges
	Mathematics	333 rep	2 silver badges12 bronze badges
	Bricks	205 rep	1 silver badge3 bronze badges
	Geographic Information Systems	113 rep	4 bronze badges

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Popular Question × 80	Convention
Notable Question × 47	Good Question × 10
Good Answer × 8	Favorite Question × 3
regression	regularization
Nice Answer × 32	Famous Question × 10

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Votes cast (2,995)

all time			by type			month		week
2,880	up		1,584	question		2		2
115	down		1,411	answer		2		2

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