Clustering on Uncertain Data Stream over Sliding Windows

2015 ◽  
Author(s):  
Li Tu
Keyword(s):  
Data Stream ◽  
Uncertain Data ◽  
Sliding Windows

scholarly journals PHUIMUS: A Potential High Utility Itemsets Mining Algorithm Based on Stream Data with Uncertainty

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Ju Wang ◽  
Fuxian Liu ◽  
Chunjie Jin
Keyword(s):  
Data Stream ◽  
Uncertain Data ◽  
Real Life ◽  
Stream Data ◽  
Memory Consumption ◽  
Sliding Windows ◽  
Uncertain Data Streams ◽  
High Utility ◽  
High Utility Itemsets ◽  
Weighted Probability

High utility itemsets (HUIs) mining has been a hot topic recently, which can be used to mine the profitable itemsets by considering both the quantity and profit factors. Up to now, researches on HUIs mining over uncertain datasets and data stream had been studied respectively. However, to the best of our knowledge, the issue of HUIs mining over uncertain data stream is seldom studied. In this paper, PHUIMUS (potential high utility itemsets mining over uncertain data stream) algorithm is proposed to mine potential high utility itemsets (PHUIs) that represent the itemsets with high utilities and high existential probabilities over uncertain data stream based on sliding windows. To realize the algorithm, potential utility list over uncertain data stream (PUS-list) is designed to mine PHUIs without rescanning the analyzed uncertain data stream. And transaction weighted probability and utility tree (TWPUS-tree) over uncertain data stream is also designed to decrease the number of candidate itemsets generated by the PHUIMUS algorithm. Substantial experiments are conducted in terms of run-time, number of discovered PHUIs, memory consumption, and scalability on real-life and synthetic databases. The results show that our proposed algorithm is reasonable and acceptable for mining meaningful PHUIs from uncertain data streams.

Incremental mining of closed inter-transaction itemsets over data stream sliding windows

2011 ◽  
Vol 37 (2) ◽  
pp. 208-220 ◽  
Author(s):  
Shih-Chuan Chiu ◽  
Hua-Fu Li ◽  
Jiun-Long Huang ◽  
Hsin-Han You
Keyword(s):  
Data Stream ◽  
Incremental Mining ◽  
Sliding Windows

scholarly journals Online Clustering on Uncertain Data Stream

2019 ◽  
Vol 1189 ◽  
pp. 012025
Author(s):  
A Makhmutova ◽  
I Anikin
Keyword(s):  
Data Stream ◽  
Uncertain Data ◽  
Online Clustering
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