新井 淳也 (ARAI Junya)

Senior Research Engineer at the Computer and Data Science Laboratories, NTT, Inc. (formerly Nippon Telegraph and Telephone Corporation).

I received a Bachelor of Science and a Master of Information Science and Technology from the University of Tokyo in 2011 and 2013, respectively. After joining NTT in 2013, I received a Ph.D. in Information Science from Osaka University in 2019. My research interests include parallel distributed computing and graph algorithms. I am a member of the Association for Computing Machinery (ACM), the Database Society of Japan (DBSJ), and the Information Processing Society of Japan (IPSJ).

• Full Publications (in Japanese; updated at Aug. 15, 2024)
• dblp
• GitHub
• LinkedIn
• SlideShare

Selected Publications

• Junya Arai, Masahiro Nakao, Yuto Inoue, Kanto Teranishi, Koji Ueno, Keiichiro Yamamura, Mitsuhisa Sato, and Katsuki Fujisawa. Doubling Graph Traversal Efficiency to 198 TeraTEPS on the Supercomputer Fugaku. The International Conference for High Performance Computing, Networking, Storage and Analysis (SC ‘24), 2024.
  • Paper: Published Version (IEEE), Accepted Version (GitHub)
  • Slides
  • Implementation
• Junya Arai, Yasuhiro Fujiwara, and Makoto Onizuka. GuP: Fast Subgraph Matching by Guard-Based Pruning. Proceedings of the ACM on Management of Data (PACMMOD, formerly Proc. SIGMOD), 2023.
  • Paper: Published Version (ACM), Accepted Version (arXiv)
  • Slides
  • Implementation
• Junya Arai, Hiroaki Shiokawa, Takeshi Yamamuro, Makoto Onizuka, and Sotetsu Iwamura. Rabbit Order: Just-in-Time Parallel Reordering for Fast Graph Analysis. IEEE International Parallel and Distributed Processing Symposium (IPDPS), 2016.
  • Paper: Published Version (IEEE), Accepted Version (NTT)
  • Slides
  • Implementation

Awards

• Best Poster Award, IEEE CCGrid 2025.
  • J. Arai et al. Geo-Replicated File Systems at Near-Local Speeds: Evaluating DAOS on the All-Photonic Network. CCGridW, 2025. 🔗
• Kasami Award, The Graduate School of Information Science and Technology and the Graduate School of Engineering Science of Osaka University, 2025.

Talks

• High-Performance Graph Search with Pruning. The 19th Korea-Japan (Japan-Korea) Database Workshop (KJDB), 2024.
  • Slides

Professional Services

• The International Conference on Parallel Processing (ICPP): PC Member (2025)
• The International Conference on Database Systems for Advanced Applications (DASFAA): PC Member (2024, 2025)
• Cross-Disciplinary Workshop on Computing Systems, Infrastructures, and Programming (xSIG): Program Vice-Chair (2024), PC Member (2023, 2019, 2018)
• The International Conference for High Performance Computing, Networking, Storage, and Analysis (SC): Planning Committee Member (Technical Program) (2023)
• The IEEE International Conference on High Performance Computing, Data and Analytics (HiPC): PC Member (2022, 2021)
• IEEE Transactions on Parallel and Distributed Systems (TPDS): Committee Member for the Special Section on Parallel and Distributed Computing Techniques for AI, ML and DL (2021, 2020)
• The International Conference on High Performance Computing in the Asia-Pacific Region (HPC Asia): PC Member (2021)