Tsuyoshi TOYONO


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)

Extending Black Domain Name List by Using Co-occurrence Relation between DNS Queries
Kazumichi SATO Keisuke ISHIBASHI Tsuyoshi TOYONO Haruhisa HASEGAWA Hideaki YOSHINO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/03/01
Vol. E95-B  No. 3  pp. 794-802
Type of Manuscript:  PAPER
Category: Fundamental Theories for Communications
Keyword: 
 Summary | Full Text:PDF(741.2KB)

FieldCast: Peer-to-Peer Presence Information Exchange in Ubiquitous Computing Environment
Katsunori MATSUURA Yoshitsugu TSUCHIYA Tsuyoshi TOYONO Kenji TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2004/12/01
Vol. E87-D  No. 12  pp. 2610-2617
Type of Manuscript:  Special Section PAPER (Special Section on New Technologies and their Applications of the Internet)
Category: Protocols, Applications and Services
Keyword: 
presence servicepeer-to-peer (P2P)SIMPLEprivacy protectiongeolocation
 Summary | Full Text:PDF(1.8MB)