Professor Toyokazu Akiyama

Area and Subject Taught Distributed Systems
Research Theme(s) Research on construction, operation, and security technology for distributed systems
Academic Degrees Doctor of Engineering, Osaka University
Keywords for Research Field Network, Security
Office Phone Number 81-75-705-1531

Research Overview

The expansion of the internet has brought us a large number of advanced applications via network such as Cloud Computing. Most of those applications involve large-scale computation using multiple computers and also have difficult security requirements like multitenancy. As a result, the construction and the operation of those applications becomes more complex by the day. What is needed to develop new applications in such kind of environments are knowledge and techniques to make applications quickly by combining existing middlewares and also technologies that can analyze and stably operate the black boxed middlewares, e.g. virtual network and server infrastructures, application frameworks and so on. Complexity of middlewares may increase its operation cost and security risks, on the other hand, simplicity may not satisfy users' functional requirements. In aiming to establish the practical balancing of those conflicting requirements, I am investigating internet middleware technologies through constructing various kind of applications.

Notable Publications and Works in the Last Three Years

  1. Toyokazu Akiyama, Shuuichirou Murata, Kiichi Tsuchiya, Teruaki Yokoyama, Martino Maggio, Giuseppe Ciulla, Juan Ramón Santana, Mengxuan Zhao, Jander Botelho Do Nascimento and Levent Gürgen, “FESTIVAL: Design and Implementation of federated interoperable Smart ICT services development and testing platform,” Journal of Information Processing, vol.25, pp. 278-287 (Mar. 2017).
  2. Shoko Wakamiya, Hiroshi Kawasaki, Yukiko Kawai, Adam Jatowt, Eiji Aramaki and Toyokazu Akiyama, “Let’s not stare at smartphones while walking: memorable route recommendation by detecting effective landmarks,” Proceedings of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2016), pp. 1136-1146 (Sep. 2016).
  3. Toyokazu Akiyama, Yuuichi Teranishi, Ryohei Banno, Katsuyoshi Iida and Yukiko Kawai, “Scalable Pub/Sub system using OpenFlow Control,” Journal of Information Processing, vol.24, no.4, pp.635-646 (Jul. 2016).
  4. Takuya Omizo, Takuma Watanabe, Toyokazu Akiyama and Katsuyoshi Iida, “ResilientFlow: Deployments of Distributed Control Channel Maintenance Modules to Recover SDN from Unexpected Failures,” IEICE Trans. Commun., Special Section on Internet Architectures and Management Methods that Enable Flexible and Secure Deployment of Network Services, vol. E99-B, no. 5, pp.1041-1053 (May 2016).
  5. Shoko Wakamiya, Adam Jatowt, Yukiko Kawai and Toyokazu Akiyama, "Analyzing Global and Pairwise Collective Spatial Attention for Geo-social Event Detection in Microblogs," In Proc. of the 25th International World Wide Web Conference (WWW 2016), pp. 263-266, ACM Press, Montreal, Canada (Apr. 2016).
  6. Yuuichi Teranishi, Ryohei Banno and Toyokazu Akiyama, “Scalable and Locality-Aware Distributed Topic-based Pub/Sub Messaging for IoT,” Proc. of 2015 IEEE Global Communications Conference (GLOBECOM 2015): Selected Areas in Communications: P2P Networking (Dec. 2015).
  7. Émilien Antoine, Adam Jatowt, Shoko Wakamiya, Yukiko Kawai and Toyokazu Akiyama, “Portraying Collective Spatial Attention in Twitter,” Proc. of the 21st ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD 2015) (Aug. 2015).