user avatar
user avatar
user avatar
Davi Américo
  • Member for 1 year, 2 months
  • Last seen more than a month ago
7 votes
2 answers
686 views

Maximum value on a set of die rolls --- how to prove that this is a Markov chain?

5 votes
3 answers
146 views

What does $X=x|Y=y$ actually mean by itself?

4 votes
2 answers
634 views

Does classic outlier detection assume normality?

4 votes
0 answers
43 views

Is feature importance in sklearn the same as proposed by Breiman 1984?

3 votes
1 answer
42 views

How to get weighted median where $w_i$ is real?

3 votes
2 answers
56 views

What does the "mass" of a box plot mean?

3 votes
1 answer
82 views

How to get the variance of $\sum_{i=1}^{N}x_i$ if $N$ and $x_i$ are random variable?

2 votes
1 answer
316 views

Why is the probability of ever making a transition to state $j$ starting from $i$ equals to $\sum_{n=1}^{\infty}f_{ij}^n$?

2 votes
3 answers
559 views

Is there a "beta distribution" over the entire real line?

2 votes
1 answer
69 views

How can a future observation being predicted even if under sample independency (posterior predictive distribution)?

2 votes
1 answer
26 views

Evaluating $P(X_{3}=j,X_{1}=i|X_{2}=k)$ on markov chain trouble

2 votes
1 answer
105 views

Does Wikipedia explain gradient boosting in wrong way?

2 votes
0 answers
59 views

Is Gradient Boosting a particular algorithm of Any Boost?

2 votes
0 answers
55 views

Minimizing Huber Loss

2 votes
1 answer
43 views

Convergece of Steepest Descent

2 votes
1 answer
49 views

Will quadratic-based estimation (not necessarily MSE) always generate a symmetric residuals after training it?

2 votes
1 answer
62 views

Will MSE-based estimator generate symmetric residuals if the error has got symmetric support (not distribution)?

2 votes
1 answer
33 views

Learning a confidence interval is there any idea to solve this problem?

2 votes
1 answer
54 views

When $Z=(\hat{\theta}-\theta)/\hat{sd}(\hat{\theta}) \rightarrow N(0,1)$ as $n \rightarrow \infty$?

1 vote
1 answer
53 views

Does probability independence have anything to do with functional independence (on general case)?

1 vote
0 answers
26 views

How can I make a prediction interval for a future response (not its mean) in regression by using bootstrap?

1 vote
2 answers
299 views

How could I get the factor scores in factor analysis for a new observartion in R?

1 vote
0 answers
16 views

Why does sampling features at each node decrease correlation between trees on a random forest?

1 vote
0 answers
22 views

Are least squares equivalent to ML normal distribution for any $f$?

1 vote
1 answer
53 views

If boosting reduce bias why does this work for decision trees as weak learners?

1 vote
1 answer
204 views

Confidence interval for Regression Trees

1 vote
1 answer
98 views

How do moving averages work to make predictions?

1 vote
2 answers
75 views

Does the convergence of algorithms in machine learning to train set make sense?

1 vote
1 answer
35 views

Expectance of predictive posterior on binomial-beta modeling

1 vote
1 answer
46 views

Question regarding irreducibility, recurrency and aperiodicity of a finite Markov chain