Michal Nánási, Tomáš Vinař, Broňa Brejová. Probabilistic Approaches to Alignment with Tandem Repeats. In Aaron Darling, Jens Stoye, ed., Algorithms in Bioinformatics, 13th International Workshop (WABI), 8126 volume of Lecture Notes in Computer Science, pp. 287-299 , 2013. Springer.
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Abstract:
We propose a simple tractable pair hidden Markov model for pairwise sequence alignment that accounts for the presence of short tandem repeats. Using the framework of gain functions, we design several optimization criteria for decoding this model and describe the resulting decoding algorithms, ranging from the traditional Viterbi and posterior decoding to block-based decoding algorithms specialized for our model. We compare the accuracy of individual decoding algorithms on simulated data and find our approach superior to the classical three-state pair HMM in simulations.
Last modified: 20.06.2014
Contact: Tomáš Vinař, KAI FMFI UK, Mlynská Dolina, 84248 Bratislava, Slovakia
Broňa Brejová, KI FMFI UK, Mlynská Dolina, 84248 Bratislava, Slovakia
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