References

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[2] Attaluri, Srilatha. "Detecting metamorphic viruses using profile hidden markov models." PhD diss. (2007).  (PDF)

[3] Huang, Lin, and Mark Stamp. "Masquerade detection using profile hidden Markov models." computers & security 30.8 (2011): 732-747.  DOI https://doi.org/10.1016/j.cose.2011.08.003.

[4] Ravi, Saradha, N. Balakrishnan, and Bharath Venkatesh. "Behavior-based Malware analysis using profile hidden Markov models." Security and Cryptography (SECRYPT), 2013 International Conference on. IEEE, 2013.  (PDF)

[5] Lee, Christopher, Catherine Grasso, and Mark F. Sharlow. "Multiple sequence alignment using partial order graphs." Bioinformatics 18.3 (2002): 452-464.  DOI https://doi.org/10.1093/bioinformatics/18.3.452.