Akio WATANABE


Workflow Extraction for Service Operation Using Multiple Unstructured Trouble Tickets
Akio WATANABE Keisuke ISHIBASHI Tsuyoshi TOYONO Keishiro WATANABE Tatsuaki KIMURA Yoichi MATSUO Kohei SHIOMOTO Ryoichi KAWAHARA 
Publication:   
Publication Date: 2018/04/01
Vol. E101-D  No. 4  pp. 1030-1041
Type of Manuscript:  Special Section PAPER (Special Section on Data Engineering and Information Management)
Category: 
Keyword: 
system managementoperationtrouble ticketworkflowmultiple sequence alignmenthidden markov model
 Summary | Full Text:PDF(1.4MB)

Network Event Extraction from Log Data with Nonnegative Tensor Factorization
Tatsuaki KIMURA Keisuke ISHIBASHI Tatsuya MORI Hiroshi SAWADA Tsuyoshi TOYONO Ken NISHIMATSU Akio WATANABE Akihiro SHIMODA Kohei SHIOMOTO 
Publication:   
Publication Date: 2017/10/01
Vol. E100-B  No. 10  pp. 1865-1878
Type of Manuscript:  PAPER
Category: Network Management/Operation
Keyword: 
network managementsyslognonnegative tensor factorization (NTF)
 Summary | Full Text:PDF(2.6MB)