5 papers · 1 filter
Order-preserving pattern mining with forgetting mechanism
Yan Li, Chenyu Ma, Rong Gao +4
Order-preserving pattern (OPP) mining is a type of sequential pattern mining method in which a group of ranks of time series is used to represent an OPP. This approach can discover…
Co-occurrence order-preserving pattern mining
Youxi Wu, Zhen Wang, Yan Li +4
Recently, order-preserving pattern (OPP) mining has been proposed to discover some patterns, which can be seen as trend changes in time series. Although existing OPP mining algorit…
Repetitive nonoverlapping sequential pattern mining
Meng Geng, Youxi Wu, Yan Li +4
Sequential pattern mining (SPM) is an important branch of knowledge discovery that aims to mine frequent sub-sequences (patterns) in a sequential database. Various SPM methods have…
Top-k contrast order-preserving pattern mining
Youxi Wu, Yufei Meng, Yan Li +4
Recently, order-preserving pattern (OPP) mining, a new sequential pattern mining method, has been proposed to mine frequent relative orders in a time series. Although frequent rela…
Nonoverlapping (delta, gamma)-approximate pattern matching
Youxi Wu, Bojing Jian, Yan Li +2
Pattern matching can be used to calculate the support of patterns, and is a key issue in sequential pattern mining (or sequence pattern mining). Nonoverlapping pattern matching mea…