Abstract
In this paper, we explore a new real time sequence pattern technique for web access pattern. It uses a preorder linked, position coded version of UAP tree and eliminates recursive reconstruction of intermediate trees, starting with suffix sequences and ending with prefix sequences by UAP tree technique. An attempt has been made to modify UAP tree approach for improving efficiency. This algorithm totally eliminates the need to engage in numerous reconstructions of intermediate UAP-trees during mining and considerably reduces execution time. PS-UAP produces significant reduction in response time achieved by the PS-UAP algorithm and provides a position code mechanism for remembering the stored database, thus, eliminating the need to re-scan the original database as would be necessary for applications like those incrementally maintaining mined frequent patterns, performing stream or dynamic mining.