Takeshi TAKAHASHI

Real-Time Detection of Global Cyberthreat Based on Darknet by Estimating Anomalous Synchronization Using Graphical Lasso
Chansu HAN Jumpei SHIMAMURA Takeshi TAKAHASHI Daisuke INOUE Jun'ichi TAKEUCHI Koji NAKAO 
Publication:   
Publication Date: 2020/10/01
Vol. E103-D  No. 10  pp. 2113-2124
Type of Manuscript:  PAPER
Category: Information Network
Keyword: 
cyberthreat, malware, darknet, network security, synchronization, outlier detection, real-time detection, 
 Summary | Full Text:PDF
Character-Level Convolutional Neural Network for Predicting Severity of Software Vulnerability from Vulnerability Description
Shunta NAKAGAWA Tatsuya NAGAI Hideaki KANEHARA Keisuke FURUMOTO Makoto TAKITA Yoshiaki SHIRAISHI Takeshi TAKAHASHI Masami MOHRI Yasuhiro TAKANO Masakatu MORII 
Publication:   
Publication Date: 2019/09/01
Vol. E102-D  No. 9  pp. 1679-1682
Type of Manuscript:  Special Section LETTER (Special Section on Log Data Usage Technology and Office Information Systems)
Category: Cybersecurity
Keyword: 
CVE, CVSS, Convolutional Neural Network, 
 Summary | Full Text:PDF
Automatically Generating Malware Analysis Reports Using Sandbox Logs
Bo SUN Akinori FUJINO Tatsuya MORI Tao BAN Takeshi TAKAHASHI Daisuke INOUE 
Publication:   
Publication Date: 2018/11/01
Vol. E101-D  No. 11  pp. 2622-2632
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication System Security)
Category: Network Security
Keyword: 
sandbox logs, malware analysis, automated report generating, natural language processing, 
 Summary | Full Text:PDF
Realization of Attenuation Poles, Spurious Resonance Suppression and Size Reduction by Microstrip SIR Loaded with Dielectric Rods
Ramesh K. POKHAREL Kouji WADA Osamu HASHIMOTO Takeshi TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/12/01
Vol. E88-C  No. 12  pp. 2302-2309
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Technologies and Computational Electromagnetics)
Category: Devices
Keyword: 
attenuation pole, dielectric rods, FDTD method, spurious responses, SIR, tapped λ/2 microstrip resonator, 
 Summary | Full Text:PDF
A New Detection Approach for the Fingerprint Core Location Using Extended Relation Graph
Tomohiko OHTSUKA Takeshi TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/10/01
Vol. E88-D  No. 10  pp. 2308-2312
Type of Manuscript:  Special Section LETTER (Special Section on Image Recognition and Understanding)
Category: 
Keyword: 
fingerprint, core detection, extended relational graph, ridge directional image, 
 Summary | Full Text:PDF
Proactive Handover Scheme Based on Forwarding Router Discovery for Mobile IP Networks
Takeshi TAKAHASHI Koichi ASATANI Jarmo HARJU Hideyoshi TOMINAGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/07/01
Vol. E88-B  No. 7  pp. 2718-2725
Type of Manuscript:  Special Section PAPER (Special Section on Mobile Multimedia Communications)
Category: 
Keyword: 
mobile IP, handover, mobility, forwarding router, redundant routing, 
 Summary | Full Text:PDF
A Method for LTCC Resonators to Realize Improved-Resonant Characteristics on Reduced-Size Microstrip Structure
Ramesh K. POKHAREL Kouji WADA Osamu HASHIMOTO Takeshi TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/09/01
Vol. E87-C  No. 9  pp. 1517-1523
Type of Manuscript:  Special Section PAPER (Special Section on Wave Technologies for Wireless and Optical Communications)
Category: Components and Devices
Keyword: 
dielectric rods, FDTD method, microstrip resonator, spurious responses, attenuation pole, 
 Summary | Full Text:PDF
Accurate Q-Factor Evaluation by Resonance Curve Area Method and Its Application to the Cavity Perturbation
Taro MIURA Takeshi TAKAHASHI Makoto KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/06/25
Vol. E77-C  No. 6  pp. 900-907
Type of Manuscript:  Special Section PAPER (Special Issue on Measurement Techniques for Microwave/Millimeter Wave)
Category: 
Keyword: 
resonance curve area method, half power bandwidth method, cavity perturbation, accuracy improvement, frequency dispersion of loss tangent, 
 Summary | Full Text:PDF