Research Achievements

SAFE: Sampling-Assisted Fast Learned Cardinality Estimation for Dynamic Spatial Data

Yuchen Ji, Daichi Amagata, Yuya Sasaki, Takahiro Hara

Proceedings of 35th International Conference on Database and Expert Systems Applications (DEXA 2024)

2024

Learned Spatial Data Partitioning

Keizo Hori, Yuya Sasaki, Daichi Amagata, Yuki Murosaki, Makoto Onizuka

International Workshop on Exploiting Artificial Intelligence Techniques for Data Management(aiDM)

2023

A Performance Study of One-dimensional Learned Cardinality Estimation

Yuchen Ji, Daichi Amagata, Yuya Sasaki, Takahiro Hara

International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data (DOLAP)

3, 2022

Fast, exact, and parallel-friendly outlier detection algorithms with proximity graph in metric spaces

Daichi Amagata, Takahiro Hara, Makoto Onizuka

VLDB

2022

Vol/No/Pages: Vol. 31 , pp. 797 -- 821

Fast and Exact Outlier Detection in Metric Spaces: A Proximity Graph-based Approach

Daichi Amagata, Makoto Onizuka, Takahiro Hara

ACM SIGMOD

6, 2021

Space Filling Approach for Distributed Processing of Top-k Dominating Queries

Daichi Amagata, Takahiro Hara, Makoto Onizuka

IEEE Trans. Knowl. Data Eng.

2018

Vol/No/Pages: Vol. 30(6) , pp. 1150 -- 1163