multivariate poisson hidden markov models for analysis of spatial ...
multivariate poisson hidden markov models for analysis of spatial ...
multivariate poisson hidden markov models for analysis of spatial ...
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Table 7.4: Loglikelihood, AIC and BIC together with the number <strong>of</strong> components <strong>for</strong><br />
the common covariance <strong>multivariate</strong> Poisson <strong>hidden</strong> Markov Model<br />
Number <strong>of</strong> Number <strong>of</strong> free Loglikelihood AIC BIC<br />
components ( k ) parameters<br />
1 3 -450.6038 -453.6038 -457.5115<br />
2 8 -398.6838 -406.6838 -417.1045<br />
3 15 -377.4649 -392.4649 -412.0036<br />
4 24 -361.7565 -385.7565 -417.0185<br />
5 35 -348.8014 -383.8014 -429.3918<br />
6 48 -340.3936 -388.3936 -450.9177<br />
Similarly, the loglikelihood, the AIC and the BIC values <strong>for</strong> the common covariance<br />
and the independent model <strong>for</strong> the Markov-dependent bivariate Poisson finite mixture<br />
<strong>models</strong> are given in Table 7.4 and Table 7.5, respectively. The corresponding estimated<br />
covariance matrices and the correlation coefficients between x 1 and x 2 are also<br />
presented.<br />
The estimated covariance matrix (AIC selection) and the correlation coefficient are<br />
⎡ 6.7930<br />
⎢<br />
⎣−<br />
0.3909<br />
− 0.3909⎤<br />
6.4713<br />
⎥<br />
⎦<br />
and r = -0.0590 respectively.<br />
The estimated covariance matrix (BIC selection) and the correlation coefficient are<br />
⎡ 6.6645<br />
⎢<br />
⎣−<br />
0.6649<br />
− 0.6649⎤<br />
5.0389<br />
⎥<br />
⎦<br />
and r = -0.1147 respectively.<br />
Table 7.5: Loglikelihood, AIC and BIC together with the number <strong>of</strong> components <strong>for</strong><br />
the local independence <strong>multivariate</strong> Poisson <strong>hidden</strong> Markov Model<br />
Number <strong>of</strong> Number <strong>of</strong> free Loglikelihood AIC BIC<br />
components ( k ) parameters<br />
1 2 -450.6038 -452.6038 -455.2089<br />
2 6 -398.7847 -404.7847 -412.6002<br />
3 12 -377.4630 -389.4630 -405.0940<br />
4 20 -368.0097 -388.0097 -414.0614<br />
5 30 -359.2484 -389.2484 -428.3259<br />
6 42 -350.8904 -392.8904 -447.5989<br />
150