Questions tagged [bic]
BIC is an acronym for Bayesian Information Criterion. BIC is one method of model comparison. See also AIC
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questions
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Bayes Information Criterion — what does log mean?
Super basic question about the BIC — is it defined in terms of log base ten or the natural logarithm? I see the latter on Wikipedia; but see ‘log’ not ‘ln’ in the original paper (though am aware that ...
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1answer
38 views
How to calculate AIC and BIC?
I should find formula of BIC and AIC which is used in statsmodels.
I have array with values:
...
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0answers
15 views
How can I determine what value of k to use for an AIC/BIC of a fractional power equation?
I have two equations of which I am trying to determine which is the better fit using AIC and BIC: a quadratic equation of the formula
$$\ y = β_{1}x^2+β_{2}x+β_{0}$$
and a fractional power equation ...
1
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1answer
65 views
Validity of BIC for Dirichlet process mixture models
I am implementing clustering using Dirichlet process mixture models via scikit learn's Variational Bayesian Gaussian Mixture model. I arrived at the appropriate priors iteratively, and I am able to ...
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0answers
40 views
LASSO Regression with AIC or BIC as Model Selection Criterion
I am fitting a linear model using LASSO and exploring BIC (or AIC) as the selection criterion. The most useful resource I have stumbled upon is this earlier question here on CrossValidated: Is it ...
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22 views
AIC and BIC for wrong models! [closed]
If the models we consider for the data are wrong, what happens to the model selection with AIC or BIC as the data increases?
Any hint?
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1answer
37 views
How do I find Schwartz criterion (or Bayesian Information Criterion) for these three models?
I have to find the schwarz criterion for each of the models in this maths question using RStudio but I don't know where to start. I know I need to find the free parameters but don't know how to find ...
3
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1answer
122 views
Can I use AIC/BIC to compare a Poisson model to a negative Binomial model?
I would please like to enquire if it's appropriate for me to compare the fit of a Poisson vs. a negative Binomial model for my data, given that the two models are nested, i.e. the negative Binomial ...
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12 views
Model fit across methods
I have one dataset and I would like to compare analytic methods. The data have to do with risk factors predicting functioning in multiple domains (multiple IVs, multiple DVs). All variables are ...
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0answers
13 views
BIC for mixed continuous and discrete parameters?
I am interested in doing a BIC analysis for models which have mixed continuous and discrete variables. To give a minimalistic example which captures the relevant structure, let $\theta\in\mathbb{R}^2$ ...
0
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1answer
41 views
Conjectures regarding EM approximations of mixtures of multivariate normal distributions
Consider $X\in\mathbb{R}^{N\times d}$ containing data for $N$ points in $d$ dimensions drawn from a bimodal multivariate normal distribution, where any row $x$ of $X$ follows the mixed multivariate ...
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22 views
How to use BIC (Bayesian Information Criterion) if the data are not identically distributed but rely on other covariate?
I'm now constructing some models and would like to compare and select the models. I read the wikipedia and some slides about BIC, then I found the ML(maximum likelihood) part in BIC seems to be based ...
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1answer
45 views
How to get log-likelihood from squared deviance in Scikit Learn
The score() function computes D^2, the percentage of deviance explained, but I'd like to get the log-likelihood to calculate BIC. What's the formula to go from deviance to log-likelihood?
Score ...
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1answer
30 views
Test to select best models in production
I've got four models in production and using the average of them as the served prediction. We get ground truth data immediately.
I've optimized them and found the best models during my training/...
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1answer
75 views
AIC/BIC vs the rule of “must include lower order interaction”
I am running a series of mixed effect models, which include both linear and quadratic term of a variable T (continuous) and the main IV I (categorical), and facing a dilemma.
Model 2 include ...
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0answers
55 views
AIC/BIC formula wrong in James/Witten?
Reading "An Introduction to
Statistical Learning" (by James, Witten, Hastie and Tibshirani), on p.211 I came across the following formula for BIC in case of linear regression:
$ BIC = \frac{...
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1answer
178 views
ARIMA grid search for best $p$, $d$, $q$ orders based on BIC metric
i am new to R, and i was hoping to get some answers to some questions i have
is there a function to loop through a range of ARIMA model to get the best order/seasonal based on BIC/AIC ?
do i have ...
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1answer
68 views
Calculate AIC value from a given BIC value?
Is it valid, given a certain BIC value (an output from an R package) with known n and k, to transform the BIC value via mathematical manipulation of the formulae for BIC and AIC to get the "...
4
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1answer
102 views
The Ambiguity in Schwarz Information Criterion Definition
Suppose there are 100 countries, $i = 1, 2, ..., 100$.
Let $b_i$ be the median birth weight of all new born boys in country #i in 2019.
Let $g_i$ be the median birth weight of all new born girls in ...
1
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1answer
81 views
Differences between formulas for AIC and BIC
I have a question regarding the information criteria AIC and BIC:
I found different formulas for the AIC/BIC, the common ones including the likelihood $\mathcal{L}$ are
$$AIC = 2K - 2 ln(\mathcal{L})\...
0
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1answer
122 views
Log-Likelihood Computation for AIC & BIC
Considering $n$ observations that an be modelled by a Gaussian error model and two nested motion models with $p = 4$ and $p = 7$ parameters, I want to compute the log likelihoods $L$ given the Maximum ...
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11 views
How to compare count data to determine
I am performing an experiment to check which information criterion performs best, better and least among Akaike Information Criterion (aic), Bayesian Information Criterion (bic) and aicc. I am ...
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0answers
19 views
details in X-means algorithm running and Bic
I want to run x-means and needs to make sure I understand fully .
I want to simulate X-means algorithm based on [1] in MATLAB. I have some questions about this algorithm.
X-means Algorithm Steps:
(1) ...
4
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1answer
46 views
Why doesn't the formula for the BIC include $\frac{\lambda}{\pi}$ in it?
I've been going through the derivation of the BIC. In Schwarz's original paper (linked below) he arrives at
\begin{align*}
nA-\frac{1}{2}k_j\log\left(\frac{n\lambda}{\pi}\right)+\log\alpha_j
\end{...
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1answer
22 views
Adjusting the number of parameters for AIC / BIC calculation in case of correlated predictors
My current understanding: Both AIC and BIC take the number of parameters as input when comparing nested models with a different number of parameters / predictors.
My question: Is it necessary / a good ...
0
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1answer
108 views
Order and interpretation of Gaussian Mixture Model with strong overlap between components
Most examples for Gaussian Mixture Models (GMMs) employ datasets with fairly obvious underlying structure (well-separated clusters). How should one determine the order of a GMM (and interpret the ...
2
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1answer
34 views
AIC/BIC parameter
I'm wondering what parameter BIC estimates. It seems that AIC is estimating the cross entropy of the estimated model and the true model, and asymptotically is estimating the out of sample entropy loss....
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0answers
17 views
k means in python with BIC [duplicate]
I am new to ML. I am trying to implement k-means which uses a BIC function that takes cluster and data points as arguments and returns BIC value. I need a function to find best k value that is ...
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0answers
24 views
Are there assumptions for using the regsubsets function in R?
I'm doing a multiple linear regression with 24 independent variables. I don't need to check the OLS assumptions because I'm only interested in R^2 that each variable explains. To get a smaller model I ...
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0answers
19 views
Generalization Error and Matrix Factorizations?
This is more of a discussion/conceptual idea but:
Is the notion of generalization error well-defined for a problem such as matrix factorization?
I'm working with tensors/matrices and performing ...
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0answers
40 views
Which GARCH model to choose if both are showing same AIC/BIC and log-likelihood?
I am doing a GARCH model for returns under different error distributions using the R rugarch package. However, two models, under the generalised error distribution and the skewed generalised error ...
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0answers
16 views
Calculating SPBIC in R From Lvaan output?
I am starting to believe that my models may not be appropriate for using the normal Bayesian Information Criterion (BIC) to compare the models. I have too many free parameters (ranging from 1000-2000) ...
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Bayesian Information Criterion (BIC) Applicability
Question
Can you compare BIC results between two models that are the same except for the removal of, say, a block of items from one of the models?
Situation
I'm still in the process of understanding ...
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0answers
17 views
Can we upper bound the KL by BIC or AIC criteria?
I would like to know if it is possible to bound the KL (or the Bayesian free energy a.k.a negative log marginal likelihood) by the Bayesian (and or Akaike) information criterion.
Thank you!
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0answers
26 views
How to decide if clustering is reasonable (if the number of clusters in a dataset is bigger than one)?
I would like to implement a system that automatically clusters some objects in order to give information whether there is more than one cluster in a specific set of these objects. In other words I ...
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0answers
12 views
Understanding the false discovery rate and positive selection rate
I want to know the relationship with EBIC and the FDR and PSR of some GLM, and what these two formulas mean?
EBIC is defined as
$$ EBIC(s) = -2\ell(\hat{\beta}(s)) + v(s)log(n)+2v(s)\gamma\log(P)$$
...
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0answers
19 views
How to decide between goodness of fit tests
I have a question on BIC and AIC.
I have a data set and I need to test this data set if it fits various distributions (for example, Gamma or Poisson, etc.) I need to use AIC and BIC statistics for ...
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0answers
118 views
GMM: Negative BIC values decreasing with k due to small penalty
I am performing GMM clustering on 10 million datapoints with 5 features. I am trying to use the BIC score to estimate the number of clusters, however the BIC score continously decreseases as k ...
0
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1answer
35 views
knowing which predictors are significant in a logistic regression model
I am trying to make a logistic regression model based on 5 predictors: 2 of these are categorical and 3 are numerical. The output is simply 1 or 0, and upon performing the Matlab function glmfit(x,y,'...
0
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1answer
160 views
Function for bayesian information criterion (BIC)
I am writing my own python function for the bayesian information criterion (BIC) calculation. What I want to do is to choose between two models that I fitted with a set of discrete xy data points.
I ...
0
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0answers
29 views
Evaluating goodness of fit of a model estimated with EM-algorithm (with AIC or BIC)
I am learning a Hidden Markov Model with time varying transition probabilities depending on different features. I do this by estimating the model parameters with the EM-algorithm. Now I would like to ...
0
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1answer
53 views
Source for BIC with residual sum of squares?
Wikipedia states that under certain circumstances, $\mathrm{BIC} $ can be calculated as:
$$\mathrm{BIC} = n \ln(\mathrm{RSS}/n) + k \ln(n),$$
where $\mathrm{RSS}$ is the residual sum of squares. ...
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0answers
24 views
Information Criterion vs. Cross Validation for Time Series
I've seen a few posts regarding this question but was hoping for a thorough explanation and possibly a source to go with it. Why would we prefer IC methods over cross-validation for time series data?
...
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0answers
52 views
BIC-Lasso Shrinkage
I am currently reviewing the below paper and was wondering if it was possible to correctly implement the BIC equation for "BIC-LASSO Shrinkage". This doesn't appear to be the same as the typical BIC ...
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1answer
193 views
Where is the divide between information criterion (AIC, BIC, etc…) and cross validation?
I've taken a regression class and am now in a machine learning class. In regression, we talk about model selection using adj-R2 and AIC/BIC. In my machine learning class, we primarily select models ...
2
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1answer
73 views
How to perform model selection with the BIC for correlated observations
How is it possible to use the Bayesian Information Criterion (and more generally, to perform model selection) when observations are correlated ?
I would like to compare the BIC of different models ...
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0answers
34 views
BIC/AIC Optimal Values
I was reading this paper (https://dms.umontreal.ca/~augusty/FHMV_paper.pdf) and noticed in their analysis (specifically Tables 2 and 3), the highest AIC and BIC values are highlighted and used as ...
0
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1answer
59 views
Should I compare two models using AIC?
I calculated duration (IV) in seconds using two different ranges (0 to 5s and 0 to 10s). The aim was to find out which range contributes to higher word learning outcomes (dichotomous DV).
I ...
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0answers
62 views
Is there an AIC and BIC equivalent for MAP?
I would like to know if there is an AIC or BIC equivalent for maximum a posterior estimation. I'm trying to compare several different models that have been fit using MAP, but I am unsure of the best ...
0
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2answers
103 views
Why can't algorithms avoid overfitting themselves?
So, I understand overfitting (bonus question: precise statistical definition of overfitting?). You don't want to match the noise in your sample.
What I don't understand is why this requires a ...
