Frequent Patterns Algorithm of Biological Sequences based on Pattern Prefix-tree


  • Linyan Xue College of Quality and Technical Supervision, Hebei University, Baoding 071002, China
  • Xiaoke Zhang College of Quality and Technical Supervision, Hebei University, Baoding 071002, China
  • Fei Xie College of Quality and Technical Supervision, Hebei University, Baoding 071002, China
  • Shuang Liu College of Quality and Technical Supervision, Hebei University, Baoding 071002, China
  • Peng Lin College of Management, Hebei University, Baoding 071002, China


Bioinformatics, frequent patterns, biological sequence, pattern prefixtree, data mining


In the application of bioinformatics, the existing algorithms cannot be directly and efficiently implement sequence pattern mining. Two fast and efficient biological sequence pattern mining algorithms for biological single sequence and multiple sequences are proposed in this paper. The concept of the basic pattern is proposed, and on the basis of mining frequent basic patterns, the frequent pattern is excavated by constructing prefix trees for frequent basic patterns. The proposed algorithms implement rapid mining of frequent patterns of biological sequences based on pattern prefix trees. In experiment the family sequence data in the pfam protein database is used to verify the performance of the proposed algorithm. The prediction results confirm that the proposed algorithms can’t only obtain the mining results with effective biological significance, but also improve the running time efficiency of the biological sequence pattern mining.


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