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Table 4 Parameter estimates for the simulated GBM and GOU processes shown in Fig. 2

From: Using correlated stochastic differential equations to forecast cryptocurrency rates and social media activities

 

\(\hat {\bar {\mu }}\)

\(\hat {\bar {\theta }}\)

\(\hat {\sigma }\)

\(\hat {\kappa }\)

(C−1)n,n

GBM 0.4

-0.00397

 

0.112

 

1.296

GOU 0.4

 

8.89

0.1004

0.0786

1.406

GBM 0.6

0.00381

 

0.0904

 

1.352

GOU 0.6

 

10.31

0.0960

0.0431

1.404

GBM 0.8

0.00391

 

0.0852

 

1.950

GOU 0.8

 

9.88

0.0920

0.0544

2.006

  1. Parameters were set as \(\bar {\mu }=0, \bar {\theta }=10, \sigma =0.1, \kappa =0.1\). For a correlation of matrix with off diagonals 0.4, (C−1)n,n=1.242. For 0.6, (C−1)n,n=1.517 and for 0.8, (C−1)n,n=2.143