A measurement-based performance evaluation method for IP networks and its implementation. - Keisuke Ishibashi; Takumi Kimura; Toshihisa Ozawa (Telecommun. Syst., 2000)

Traffic measurement and analysis in an ATM-based internet backbone. - Ryoichi Kawahara; Keisuke Ishibashi; Toshiyuki Hirano; Hiroshi Saito; Hisaki Ohara; Daisuke Satoh; Shoichiro Asano; Jun Matsukata (Comput. Commun., 2001)

Active/passive combination-type performance measurement method using change-of-measure framework. - Keisuke Ishibashi; Toshiyuki Kanazawa; Masaki Aida (GLOBECOM, 2002)

End-to-end relative Differentiated Services for IP networks. - Csaba Simon; Attila Vidács; István Moldován; Attila Török; Keisuke Ishibashi; Arata Koike; H. Ichikawa (ISCC, 2002)

Characteristics of Temporal and Spatial Locality of Internet Access Patterns. - Keisuke Ishibashi; Masaki Aida; Makoto Imase (NETWORKING Workshops, 2002)

Estimating packet loss-rate by using delay information and combined with change-of-measure framework. - Keisuke Ishibashi; Masaki Aida; Shin-ichi Kuribayashi (GLOBECOM, 2003)

A method of IP traffic management using TCP flow statistics. - Ryoichi Kawahara; Keisuke Ishibashi; Takuya Asaka; Katsunori Ori (GLOBECOM, 2003)

Capacity dimensioning of VPN access links for elastic traffic. - Keisuke Ishibashi; Mika Ishizuka; Masaki Aida; Hiroshi Ishii 002 (ICC, 2003)

A scalable and lightweight QoS monitoring technique combining passive and active approaches: On the mathematical formulation of CoMPACT Monitor. - Masaki Aida; Naoto Miyoshi; Keisuke Ishibashi (INFOCOM, 2003)

Unicast Probing to Estimate Shared Loss Rate. - Dinh-Dung Luong; Attila Vidács; József Bíró; Daisuke Satoh; Keisuke Ishibashi (MMNS, 2003)

Bottleneck links detection method based on passive monitoring. - István Moldován; Trang Dinh Dang; József Bíró; Daisuke Satoh; Keisuke Ishibashi (Communications, Internet, and Information Technology, 2004)

Detection of TCP performance degradation using link utilization statistics. - Keisuke Ishibashi; Ryoichi Kawahara; Aida Takuya; Asaka Masaki (GLOBECOM, 2004)

A method of bandwidth dimensioning and management using flow statistics [IP networks]. - Ryoichi Kawahara; Keisuke Ishibashi; Takuya Asaka; Shuichi Sumita; Takeo Abe (GLOBECOM, 2004)

Structures of Human Relations and User-Dynamics Revealed by Traffic Data. - Masaki Aida; Keisuke Ishibashi; Hiroyoshi Miwa; Chisa Takano (ICOIN, 2004)

Active/passive combination-type performance measurement method using change-of-measure framework. - Keisuke Ishibashi; Toshiyuki Kanazawa; Masaki Aida; Hiroshi Ishii 002 (Comput. Commun., 2004)

Structures of Human Relations and User-Dynamics Revealed by Traffic Data. - Masaki Aida; Keisuke Ishibashi; Hiroyoshi Miwa; Chisa Takano; Shin-ichi Kuribayashi (IEICE Trans. Inf. Syst., 2004)

Cluster structures in topology of large-scale social networks revealed by traffic data. - Masaki Aida; Keisuke Ishibashi; Chisa Takano; Hiroyoshi Miwa; Kaori Muranaka; Akira Miura (GLOBECOM, 2005)

Detecting mass-mailing worm infected hosts by mining DNS traffic data. - Keisuke Ishibashi; Tsuyoshi Toyono; Katsuyasu Toyama; Masahiro Ishino; Haruhiko Ohshima; Ichiro Mizukoshi (MineNet, 2005)

Measurement of DNS Traffic Caused by DDoS Attacks. - Keisuke Ishibashi; Tsuyoshi Toyono; Hirotaka Matsuoka; Katsuyasu Toyama; Masahiro Ishino; Chika Yoshimura; Takehiro Ozaki; Yuichi Sakamoto; Ichiro Mizukoshi (SAINT Workshops, 2005)

A Method of Bandwidth Dimensioning and Management Using Flow Statistics. - Ryoichi Kawahara; Keisuke Ishibashi; Takuya Asaka; Shuichi Sumita; Takeo Abe (IEICE Trans. Commun., 2005)

Method of Bandwidth Dimensioning and Management for Aggregated TCP Flows with Heterogeneous Access Links. - Ryoichi Kawahara; Keisuke Ishibashi; Tatsuya Mori; Toshihisa Ozawa; Takeo Abe (IEICE Trans. Commun., 2005)

A Proposal of Large-Scale Traffic Monitoring System Using Flow Concentrators. - Atsushi Kobayashi; Daisuke Matsubara; Shingo Kimura; Motoyuki Saitou; Yutaka Hirokawa; Hitoaki Sakamoto; Keisuke Ishibashi; Kimihiro Yamamoto (APNOMS, 2006)

Estimating Flow Rate from Sampled Packet Streams for Detection of Performance Degradation at TCP Flow Level. - Ryoichi Kawahara; Tatsuya Mori; Keisuke Ishibashi; Noriaki Kamiyama; Takeo Abe (GLOBECOM, 2006)

Estimating Top N Hosts in Cardinality Using Small Memory Resources. - Keisuke Ishibashi; Tatsuya Mori; Ryoichi Kawahara; Yutaka Hirokawa; Atsushi Kobayashi; Kimihiro Yamamoto; Hitoaki Sakamoto (ICDE Workshops, 2006)

Detection of TCP Performance Degradation Using Link Utilization Statistics. - Keisuke Ishibashi; Ryoichi Kawahara; Takuya Asaka; Masaki Aida; Satoshi Ono; Shoichiro Asano (IEICE Trans. Commun., 2006)

Detection Accuracy of Network Anomalies Using Sampled Flow Statistics. - Ryoichi Kawahara; Keisuke Ishibashi; Tatsuya Mori; Noriaki Kamiyama; Shigeaki Harada; Shoichiro Asano (GLOBECOM, 2007)

2-D Bitmap for Summarizing Inter-Host Communication Patterns. - Keisuke Ishibashi; Tatsuya Mori; Ryoichi Kawahara; Katsuyasu Toyama; Shunichi Osawa; Shoichiro Asano (SAINT Workshops, 2007)

Unicast probing techniques for estimation of shared loss rate. - Dinh-Dung Luong; Attila Vidács; József Bíró; Trang Dinh Dang; Daisuke Satoh; Keisuke Ishibashi (Int. J. Commun. Syst., 2007)

Finding Cardinality Heavy-Hitters in Massive Traffic Data and Its Application to Anomaly Detection. - Keisuke Ishibashi; Tatsuya Mori; Ryoichi Kawahara; Yutaka Hirokawa; Atsushi Kobayashi; Kimihiro Yamamoto; Hitoaki Sakamoto; Shoichiro Asano (IEICE Trans. Commun., 2008)

Packet Sampling TCP Flow Rate Estimation and Performance Degradation Detection Method. - Ryoichi Kawahara; Tatsuya Mori; Keisuke Ishibashi; Noriaki Kamiyama; Hideaki Yoshino (IEICE Trans. Commun., 2008)

A Change-of-Measure Approach to Per- Flow Delay Measurement Combining Passive and Active Methods: Mathematical Formulation for CoMPACT Monitor. - Masaki Aida; Naoto Miyoshi; Keisuke Ishibashi (IEEE Trans. Inf. Theory, 2008)

VoIP Measurement Architecture Using Data Mediation. - Atsushi Kobayashi; Keisuke Ishibashi (IPOM, 2009)

Extending Black Domain Name List by Using Co-occurrence Relation between DNS Queries. - Kazumichi Sato; Keisuke Ishibashi; Tsuyoshi Toyono; Nobuhisa Miyake (LEET, 2010)

How is e-mail sender authentication used and misused? - Tatsuya Mori; Kazumichi Sato; Yousuke Takahashi; Keisuke Ishibashi (CEAS, 2011)

Incentive mechanism for prompting ISPs to implement outbound filtering of unwanted traffic. - Yousuke Takahashi; Keisuke Ishibashi (NetGCoop, 2011)

Foreword. - Keisuke Ishibashi (IEICE Trans. Commun., 2011)

VoIP Quality Measurement System Using Flow Mediation for Large-Scale IP Networks. - Atsushi Kobayashi; Keisuke Ishibashi (IEICE Trans. Commun., 2011)

Traffic Monitoring System Based on Correlation between BGP Messages and Traffic Data. - Atsushi Kobayashi; Shingo Kashima; Hiroshi Kurakami; Keisuke Ishibashi (IEICE Trans. Commun., 2011)

Detection accuracy of network anomalies using sampled flow statistics. - Ryoichi Kawahara; Keisuke Ishibashi; Tatsuya Mori; Noriaki Kamiyama; Shigeaki Harada; Haruhisa Hasegawa; Shoichiro Asano (Int. J. Netw. Manag., 2011)

IP Flow Information Export (IPFIX) Mediation: Framework. - Atsushi Kobayashi; Benoit Claise; Gerhard Münz; Keisuke Ishibashi (RFC, 2011)

Effects of Sampling and Spatio/Temporal Granularity in Traffic Monitoring on Anomaly Detectability. - Keisuke Ishibashi; Ryoichi Kawahara; Tatsuya Mori; Tsuyoshi Kondoh; Shoichiro Asano (IEICE Trans. Commun., 2012)

Extending Black Domain Name List by Using Co-occurrence Relation between DNS Queries. - Kazumichi Sato; Keisuke Ishibashi; Tsuyoshi Toyono; Haruhisa Hasegawa; Hideaki Yoshino (IEICE Trans. Commun., 2012)

Traffic prediction for dynamic traffic engineering considering traffic variation. - Tatsuya Otoshi; Yuichi Ohsita; Masayuki Murata 001; Yousuke Takahashi; Keisuke Ishibashi; Kohei Shiomoto (GLOBECOM, 2013)

Mean-variance relationship of the number of flows in traffic aggregation and its application to traffic management. - Ryoichi Kawahara; Tetsuya Takine; Tatsuya Mori; Noriaki Kamiyama; Keisuke Ishibashi (Comput. Networks, 2013)

Flow aggregation for traffic engineering. - Noriaki Kamiyama; Yousuke Takahashi; Keisuke Ishibashi; Kohei Shiomoto; Tatsuya Otoshi; Yuichi Ohsita; Masayuki Murata 001 (GLOBECOM, 2014)

Spatio-temporal factorization of log data for understanding network events. - Tatsuaki Kimura; Keisuke Ishibashi; Tatsuya Mori; Hiroshi Sawada; Tsuyoshi Toyono; Ken Nishimatsu; Akio Watanabe; Akihiro Shimoda; Kohei Shiomoto (INFOCOM, 2014)

Inferring Popularity of Domain Names with DNS Traffic: Exploiting Cache Timeout Heuristics. - Akihiro Shimoda; Keisuke Ishibashi; Kazumichi Sato; Masayuki Tsujino; Takeru Inoue; Masaki Shimura; Takanori Takebe; Kazuki Takahashi; Tatsuya Mori; Shigeki Goto (GLOBECOM, 2015)

Traffic engineering based on stochastic model predictive control for uncertain traffic change. - Tatsuya Otoshi; Yuichi Ohsita; Masayuki Murata 001; Yousuke Takahashi; Keisuke Ishibashi; Kohei Shiomoto; Tomoaki Hashimoto (IM, 2015)

Optimizing Cache Location and Route on CDN Using Model Predictive Control. - Noriaki Kamiyama; Yousuke Takahashi; Keisuke Ishibashi; Kohei Shiomoto; Tatsuya Otoshi; Yuichi Ohsita; Masayuki Murata 001 (ITC, 2015)

SFMap: Inferring Services over Encrypted Web Flows Using Dynamical Domain Name Graphs. - Tatsuya Mori; Takeru Inoue; Akihiro Shimoda; Kazumichi Sato; Keisuke Ishibashi; Shigeki Goto (TMA, 2015)

Traffic prediction for dynamic traffic engineering. - Tatsuya Otoshi; Yuichi Ohsita; Masayuki Murata 001; Yousuke Takahashi; Keisuke Ishibashi; Kohei Shiomoto (Comput. Networks, 2015)

Effective Flow Aggregation for Traffic Engineering. - Noriaki Kamiyama; Yousuke Takahashi; Keisuke Ishibashi; Kohei Shiomoto; Tatsuya Otoshi; Yuichi Ohsita; Masayuki Murata 001 (IEICE Trans. Commun., 2015)

Traffic Engineering Based on Model Predictive Control. - Tatsuya Otoshi; Yuichi Ohsita; Masayuki Murata 001; Yousuke Takahashi; Noriaki Kamiyama; Keisuke Ishibashi; Kohei Shiomoto; Tomoaki Hashimoto (IEICE Trans. Commun., 2015)

Hierarchical traffic engineering based on model predictive control. - Tatsuya Otoshi; Yuichi Ohsita; Masayuki Murata 001; Yousuke Takahashi; Keisuke Ishibashi; Kohei Shiomoto; Tomoaki Hashimoto (ICNC, 2016)

Framework for traffic engineering under uncertain traffic information. - Tatsuya Otoshi; Yuichi Ohsita; Masayuki Murata 001; Yousuke Takahashi; Keisuke Ishibashi; Kohei Shiomoto; Tomoaki Hashimoto (ICTC, 2016)

Workflow extraction for service operation using multiple unstructured trouble tickets. - Akio Watanabe; Keisuke Ishibashi; Tsuyoshi Toyono; Tatsuaki Kimura; Keishiro Watanabe; Yoichi Matsuo; Kohei Shiomoto (NOMS, 2016)

Statistical estimation of the names of HTTPS servers with domain name graphs. - Tatsuya Mori; Takeru Inoue; Akihiro Shimoda; Kazumichi Sato; Shigeaki Harada; Keisuke Ishibashi; Shigeki Goto (Comput. Commun., 2016)

Identifying DNS Anomalous User by Using Hierarchical Aggregate Entropy. - Keisuke Ishibashi; Kazumichi Sato (IEICE Trans. Commun., 2017)

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 (IEICE Trans. Commun., 2017)

Root-Cause Diagnosis for Rare Failures Using Bayesian Network with Dynamic Modification. - Yoichi Matsuo; Yuusuke Nakano; Akio Watanabe; Keishiro Watanabe; Keisuke Ishibashi; Ryoichi Kawahara (ICC, 2018)

Estimation of Dimensions Contributing to Detected Anomalies with Variational Autoencoders. - Yasuhiro Ikeda; Kengo Tajiri; Yuusuke Nakano; Keishiro Watanabe; Keisuke Ishibashi (CoRR, 2018)

Anomaly Detection and Interpretation using Multimodal Autoencoder and Sparse Optimization. - Yasuhiro Ikeda; Keisuke Ishibashi; Yuusuke Nakano; Keishiro Watanabe; Ryoichi Kawahara (CoRR, 2018)

Reachability Analysis of Multi-Hop D2D Communications at Disaster. - Noriaki Kamiyama; Keisuke Ishibashi; Yoko Hoshiai (IEICE Trans. Commun., 2018)

Separating Predictable and Unpredictable Flows via Dynamic Flow Mining for Effective Traffic Engineering. - Yousuke Takahashi; Keisuke Ishibashi; Masayuki Tsujino; Noriaki Kamiyama; Kohei Shiomoto; Tatsuya Otoshi; Yuichi Ohsita; Masayuki Murata 001 (IEICE Trans. Commun., 2018)

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 (IEICE Trans. Inf. Syst., 2018)

Hierarchical Model Predictive Traffic Engineering. - Tatsuya Otoshi; Yuichi Ohsita; Masayuki Murata 001; Yousuke Takahashi; Keisuke Ishibashi; Kohei Shiomoto; Tomoaki Hashimoto (IEEE/ACM Trans. Netw., 2018)

Inferring Latent Traffic Demand Offered to an Overloaded Link with Modeling QoS-Degradation Effect. - Keisuke Ishibashi; Shigeaki Harada; Ryoichi Kawahara (IEICE Trans. Commun., 2019)

Proactive Failure Detection Learning Generation Patterns of Large-Scale Network Logs. - Tatsuaki Kimura; Akio Watanabe; Tsuyoshi Toyono; Keisuke Ishibashi (IEICE Trans. Commun., 2019)

Modeling Upper Layer Reaction to QoS Degradation as a Congestion Avoidance Mechanism. - Shigeaki Harada; Keisuke Ishibashi; Ryoichi Kawahara (IEICE Trans. Commun., 2020)

Extendable NFV-Integrated Control Method Using Reinforcement Learning. - Akito Suzuki; Ryoichi Kawahara; Masahiro Kobayashi; Shigeaki Harada; Yousuke Takahashi; Keisuke Ishibashi (IEICE Trans. Commun., 2020)

Routing and Capacity Optimization Based on Estimated Latent OD Traffic Demand. - Takumi Uchida; Keisuke Ishibashi; Kensuke Fukuda (IEICE Trans. Commun., 2021)

Estimating Traffic Latent Due to QoS Deterioration: A Time-Series Causal Inference Approach. - Keisuke Ishibashi; Takumi Uchida (ITC, 2023)

Extraction and Prediction of User Communication Behaviors From DNS Query Logs Based on Nonnegative Tensor Factorization. - Kotaro Hatanaka; Tatsuaki Kimura; Yuka Komai; Keisuke Ishibashi; Masahiro Kobayashi; Shigeaki Harada (IEEE Trans. Netw. Serv. Manag., 2023)

Hexagon: Generating Asynchronous Microservices Benchmarks for the Evaluation of Anomaly Propagation Resistance. - Hiroki Hanada; Keisuke Ishibashi (COMPSAC, 2024)

Empirical Study on Request Timeout and Retry for Microservices Communication. - Hiroki Hanada; Keisuke Ishibashi (PRDC, 2024)

Estimating Latent Traffic Demand From QoS Degradation Using a Time Series Causal Inference Approach. - Keisuke Ishibashi; Takumi Uchida (IEEE Access, 2024)

Service-Level Objective-Aware Load-Adaptive Timeout: Balancing Failure Rate and Latency in Microservices Communication. - Hiroki Hanada; Keisuke Ishibashi (IEEE Access, 2025)