About me
I am Hiroyuki Yamada, CTO and co-CEO of Scalar, Inc. I am the original creator of ScalarDB, universal HTAP engine for diverse databases, and ScalarDL, Byzantine-fault detection middleware for transactional databases. I am passionate about database systems and distributed systems, especially making transactions and query processing highly scalable and available. I received my Ph.D. from the University of Tokyo, where I worked on parallel database systems under the supervision of Prof. Masaru Kitsuregawa.
News
- Our paper titled “LakeHarbor: Making Structures First-Class Citizens in Data Lakes” has been accepted in ICDE’24!
Research Interests
- Database systems
- Distributed systems
Selected Publications
LakeHarbor: Making Structures First-Class Citizens in Data Lakes
H. Yamada, M. Kitsuregawa, and K. Goda. 2024. LakeHarbor: Making Structures First-Class Citizens in Data Lakes. In ICDE, 5583-5592.
The Case for Lazy Byzantine Fault Detection for Transactional Database Systems
J. Nemoto and H. Yamada. 2023. The Case for Lazy Byzantine Fault Detection for Transactional Database Systems. In ICDCSW. 13-18.
ScalarDB: Universal Transaction Manager for Polystores
H. Yamada, T. Suzuki, Y. Ito, and J. Nemoto. 2023. ScalarDB: Universal Transaction Manager for Polystores. PVLDB 16, 12 (2023), 3768–3780.
Nested Loops Revisited Again
H. Yamada, K. Goda, and M. Kitsuregawa. 2023. Nested Loops Revisited Again. In ICDE, 3708-3717.
Scalar DL: Scalable and Practical Byzantine Fault Detection for Transactional Database Systems
H. Yamada and J. Nemoto. 2022. Scalar DL: Scalable and Practical Byzantine Fault Detection for Transactional Database Systems. PVLDB 15, 7 (2022), 1324-1336.
Out-of-order Execution of Database Queries
K. Goda, Y. Hayamizu, H. Yamada, and M. Kitsuregawa. 2020. Out-of-Order Execution of Database Queries. PVLDB 13, 12 (2020), 3489–3501.
What’s So Different about Blockchain? — Blockchain is a Probabilistic State Machine
K. Saito and H. Yamada. 2016. What’s So Different about Blockchain? — Blockchain is a Probabilistic State Machine. In ICDCSW. 168-175.
Scalable Online Index Construction with Multi-Core CPUs
H. Yamada and M. Toyama. 2010. Scalable Online Index Construction with Multi-core CPUs. In ADC. 29–36.
Software
- ScalarDB: Universal HTAP Engine for diverse databases
- ScalarDL: Byzantine-fault detection middleware for transactional databases
- Lux IO (archived): Yet another fast database manager
- Lux (archived): Distributed full-text search engine
Teaching
Awards
- Best Paper Award in The IEICE Transactions on Information and Systems (2015)
- Gold Prize in Rakuten Technology Award - Rakuten, Inc (2014)
- Best Paper Award in DEIM (2014)
- Best Ph.D. award in Information and Communication Engineering Department at The University of Tokyo (2014)
- Best Poster Award in DEIM (2014)
- Keio Univesity International Conference Encouragement Award (2009)
- Certified Super Creator in MITOU Program of the Ministry of Economy, Trade and Industry (METI) (2008)