Research Achievements

Workload Cost Optimization Using Dynamic Replication in Decentralized Systems

Ryoga Yoshida, Chuan Xiao, Makoto Onizuka

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

3, 2025

Ultraverse: An Efficient What-if Analysis Framework for Software Applications Interacting with Database Systems

Ronny Ko, Chuan Xiao, Makoto Onizuka, Zhiqiang Lin, Yihe Huang

Proceedings of the ACM on Management of Data (PACMMOD)

2, 2025

DOI: 10.1145/3709734

Vol/No/Pages: Vol. 3 , No. 1

Shall We Team Up: Exploring Spontaneous Cooperation of Competing LLM Agents

Zengqing Wu, Run Peng, Shuyuan Zheng, Qianying Liu, Xu Han, Brian Inhyuk Kwon, Makoto Onizuka, Shaojie Tang, Chuan Xiao

Conference on Empirical Methods in Natural Language Processing (EMNLP) 2024 Findings

11, 2024

BClean: A Bayesian Data Cleaning System

Jianbin Qin, Sifan Huang, Yaoshu Wang, Jing Zhu, Yifan Zhang, Yukai Miao, Rui Mao, Makoto Onizuka, Chuan Xiao

IEEE International Conference on Data Engineering (ICDE)

5, 2024

DOI: 10.1109/ICDE60146.2024.00263

An Efficient Diversity-Aware Method for the Empty-Answer Problem

Yuto Ikeda, Chuan Xiao, Makoto Onizuka

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

3, 2024

Large Language Models as Urban Residents: An LLM Agent Framework for Personal Mobility Generation

Jiawei Wang, Renhe Jiang, Chuang Yang, Zengqing Wu, Makoto Onizuka, Ryosuke Shibasaki, Noboru Koshizuka, Chuan Xiao

Conference on Neural Information Processing Systems (NeurIPS) 2024

2024

Privacy-Enhanced Database Synthesis for Benchmark Publishing

Yunqing Ge, Jianbin Qin, Shuyuan Zheng, Yongrui Zhong, Bo Tang, Yu-Xuan Qiu, Rui Mao, Ye Yuan, Makoto Onizuka, Chuan Xiao

Proceedings of the VLDB Endowment (PVLDB)

2024

Vol/No/Pages: Vol. 18(2) , pp. 413 -- 425

GuP: Fast Subgraph Matching by Guard-based Pruning

Junya Arai, Yasuhiro Fujiwara, Makoto Onizuka

Proceedings of the ACM on Management of Data (PACMMOD)

6, 2023

DOI: 10.1145/3589312

Vol/No/Pages: Vol. 1 , No. 2

GenCAT: Generating Attributed Graphs with Controlled Relationships between Classes, Attributes, and Topology

Seiji Maekawa, Yuya Sasaki, George Fletcher, Makoto Onizuka

Information Systems 115: 102195

5, 2023

Predicting Parking Lot Availability by Graph-to-Sequence Model: A Case Study with SmartSantander

Yuya Sasaki, Junya Takayama, Juan Ramón Santana, Shohei Yamasaki, Tomoya Okuno, Makoto Onizuka

in proceedings of International Conference on Mobile Data Management (MDM)

2023

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

Holistic Prediction on a Time-Evolving Attributed Graph

Shohei Yamasaki, Yuya Sasaki, Panagiotis Karras, Makoto Onizuka

Annual Meeting of the Association for Computational Linguistics (ACL)

2023

Benchmark for Personalized Federated Learning

Koji Matsuda, Yuya Sasaki, Chuan Xiao, Makoto Onizuka

IEEE Open Journal of the Computer Society

2023

Vol/No/Pages: Vol. vol.01 , pp. 1 -- 12

Beyond Real-world Benchmark Datasets: An Empirical Study of Node Classification with GNNs

Seiji Maekawa, Koki Noda, Yuya Sasaki, Makoto Onizuka

NeurIPS Datasets and Benchmarks Track

11, 2022

Language-aware Indexing for Conjunctive Path Queries

Yuya Sasaki, George Fletcher, Makoto Onizuka

Proceedings of International Conference on Data Engineering (ICDE)

9, 2022

GNN Transformation Framework for Improving Efficiency and Scalability

Seiji Maekawa, Yuya Sasaki, George Fletcher, Makoto Onizuka

Proceedings of The European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML/PKDD)

9, 2022

Benchmarking GNNs with GenCAT Workbench

Seiji Maekawa, Yuya Sasaki, George Fletcher, Makoto Onizuka

Demo Track of ECML/PKDD

9, 2022

Journey of Migrating Millions of Queries on The Cloud

Taro L. Saito, , Naoki Takezoe, Yukihiro Okada, Takako Shimamoto, Dongmin Yu, Suprith Chandrashekharachar, Kai Sasaki, Shohei Okumiya, Yan Wang, Takashi Kurihara, Ryu Kobayashi, Keisuke Suzuki, Zhenghong Yang, Makoto Onizuka

DBTest workshop

7, 2022

AIREX: Neural Network-based Approach for Air Quality Inference in Unmonitored Cities

Yuya Sasaki, Kei Harada, Shohei Yamasaki, Makoto Onizuka

Proceedings of 23rd IEEE International Conference on Mobile Data Management (MDM)

6, 2022

FedMe: Federated Learning via Model Exchange

Koji Matsuda, Yuya Sasaki, Chuan Xiao, Makoto Onizuka

SIAM International Conference on Data Mining (SDM22)

4, 2022

JupySim: Jupyter Notebook Similarity Search System

Misato Horiuchi, Yuya Sasaki, Chuan Xiao, Makoto Onizuka

Proceedings of 25th International Conference on Extending Database Technology (EDBT)

3, 2022

Bidirectional Collaborative Frameworks for Decentralized Data Management

Yasuhito Asano, Yang Cao, Soichiro Hidaka, Zhenjiang Hu, Yasunori Ishihara, Hiroyuki Kato, Keisuke Nakano, Makoto Onizuka, Yuya Sasaki, Toshiyuki Shimizu, Masato Takeichi, Chuan Xiao, Masatoshi Yoshikawa

Proceedings of Workshop on Software Foundations for Data Interoperability

1, 2022

Robust Cardinality Estimator by Non-Autoregressive Model

Ryuichi Ito, Chuan Xiao, Makoto Onizuka

Proceedings of Workshop on Software Foundations for Data Interoperability

1, 2022

HSGAN: Reducing Mode Collapse in GANs by the Latent Code Distance of Homogeneous Samples

Simin Yu, Kuntian Zhang, Chuan Xiao, Joshua Zhexue Huang, Mark Junjie Li, Makoto Onizuka

Computer Vision and Image Understanding (CVIU)

2022

Vol/No/Pages: Vol. 214 , No. 103314.0

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

The Lannion report on Big Data and Security Monitoring Research

Laurent d'Orazio, Jalil Boukhobza, Omer F. Rana, Juba Agoun, Le Gruenwald, Hervé Rannou, Elisa Bertino, Mohand-Saïd Hacid, Taofik Saïdi, Georges Bossert, Van Long Nguyen Huu, Dimitri Tombroff, Makoto Onizuka

IEEE International Conference on Big Data (Big Data)

2022

Effective Candidate Selection and Interpretable Interest Extraction for Follower Prediction on Social Media

Seiji Maekawa, Santi Saeyor, Takeshi Sakaki, Makoto Onizuka

Proceedings of IEEE/WIC/ACM International Conference on Web Intelligence (WI-IAT ’21)

12, 2021

Language-agnostic Representation from Multilingual Sentence Encoders for Cross-lingual Similarity Estimation

Nattapong Tiyajamorn, Tomoyuki Kajiwara, Yuki Arase, Makoto Onizuka

Proc. of Conference on Empirical Methods in Natural Language Processing (EMNLP2021)

11, 2021

Vol/No/Pages: pp. 7764 -- 7774

Adaptive Node Embedding Propagation for Semi-Supervised

Yuya Ogawa, Seiji Maekawa, Yuya Sasaki, Yasuhiro Fujiwara, Makoto Onizuka

Classification. Proceedings of The European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML/PKDD)

9, 2021

Edit Distance Based Curriculum Learning for Paraphrase Generation.

Sora Kadotani, Tomoyuki Kajiwara, Yuki Arase, Makoto Onizuka

In Proceedings of the ACL-IJCNLP 2021 Student Research Workshop

8, 2021

SC-JNMF: single-cell clustering integrating multiple quantification methods based on joint non-negative matrix factorization

Mikio Shiga, Shigeto Seno, Makoto Onizuka, Hideo Matsuda

PeerJ 9

8, 2021

Consistent and Flexible Selectivity Estimation for High-Dimensional Data.

Yaoshu Wang, Chuan Xiao, Jianbin Qin, Rui Mao, Makoto Onizuka, Wei Wang, Rui Zhang, Yoshiharu Ishikawa

ACM SIGMOD International Conference on Management of Data (SIGMOD) 2021.

6, 2021

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

Daichi Amagata, Makoto Onizuka, Takahiro Hara

ACM SIGMOD

6, 2021

Smart City Data Analysis via Visualization of Correlated Attribute Patterns

Yuya Sasaki, Keizo Hori, Daiki Nishihara, Sora Ohashi, Yusuke Wakuta, Kei Harada, Makoto Onizuka, Yuki Arase, Shinji Shimojo, Kenji Doi, He Hongdi, Zhong-Ren Peng

24th International Conference on Extending Database Technology (EDBT)

3, 2021

Controlling Internal Structure of Communities on Graph Generator

Hiroto Yamaguchi, Yuya Ogawa, Seiji Maekawa, Yuya Sasaki, Makoto Onizuka

IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM)

12, 2020

MISCELA: discovering simultaneous and time-delayed correlated attribute patterns

Kei Harada, Yuya Sasaki, Makoto Onizuka

Distributed and Parallel Databases

9, 2020

Vol/No/Pages: pp. 1 -- 28

NGNC: A Flexible and Efficient Framework for Error-Tolerant Query Autocompletion

Yukai Miao, Jianbin Qin, Sheng Hu, Yuyang Dong, Yoshiharu Ishikawa, Makoto Onizuka

Fourth Workshop on Software Foundations for Data Interoperability

9, 2020

Data Integration Models and Architectures for Service Alliances

Yasuhito Asano, Zhenjiang Hu, Yasunori Ishihara, Makoto Onizuka, Masato Takeichi, Masatoshi Yoshikawa

Fourth Workshop on Software Foundations for Data Interoperability

9, 2020

Towards Guaranteeing Global Consistency for Peer-based Data Integration Architecture

Kota Miyake, Yusuke Wakuta, Yuya Sasaki, Makoto Onizuka

Fourth Workshop on Software Foundations for Data Interoperability

9, 2020

Towards Smart Data Sharing by Updatable Views

Makoto Onizuka, Yasunori Ishihara, Masato Takeichi

ourth Workshop on Software Foundations for Data Interoperability

9, 2020

New Attributed Graph Clustering by Bridging Attribute and Topology Spaces

Seiji Maekawa, Koh Takeuchi, Makoto Onizuka

情報処理学会論文誌データベース (TOD)

8, 2020

Vol/No/Pages: Vol. 28 , pp. 427 -- 435

Monotonic Cardinality Estimation of Similarity Selection

Yaoshu Wang, Chuan Xiao, Jianbin Qin, Xin Cao, Yifang Sun, Wei Wang, Makoto Onizuka

A Deep Learning Approach, ACM SIGMOD International Conference on Management of Data

6, 2020

曖昧グラフにおける効率的なネットワーク信頼性の近似計算

Yuya Sasaki, Yasuhiro Fujiwara, Makoto Onizuka

日本データベース学会和文論文誌

3, 2020

Vol/No/Pages: Vol. 18-J , No. 7.0

Proximity Preserving Nonnegative Matrix Factorization

Yuya Ogawa, Koh Takeuchi, Yuya Sasaki, Makoto Onizuka

情報処理学会論文誌データベース (TOD)

2020

Schema Mapping between Logical and Internal Layers for NoSQL Applications

Teruyoshi Zenmyo, Noriyuki Watanabe, Yusuke Wakuta, Makoto Onizuka

The 1st Workshop on Distributed Infrastructure, Systems, Programming and AI (DISPA)

2020

Yosegi: Columnar format for efficient nested data processing by schema conversion

Yasunori Oto, Kouji Ijima, Kotaro Terada, Makoto Onizuka

The 1st Workshop on Distributed Infrastructure, Systems, Programming and AI (DISPA)

2020

General Generator for Attributed Graphs with Community Structure

Seiji Maekawa, Jianpeng Zhang, George Fletcher, Makoto Onizuka

ECML PKDD, Graph Embedding and Mining Workshop, 2019

9, 2019

MISCELA: Discovering Correlated Attribute Patterns in Time Series Sensor Data

Kei Harada, Makoto Onizuka

In Proceedings of IEEE International Conference on Mobile Data Management

6, 2019

Efficient Network Reliability Computation in Uncertain Graphs

Yuya Sasaki, Yasuhiro Fujiwara, Makoto Onizuka

In Proceedings of International Conference on Extending Database Technology

3, 2019

Data Slice Search for Local Outlier View Detection: A Case Study in Fashion EC

Takumi Matsumoto, Yuya Sasaki, Makoto Onizuka

In Proceedings of International Workshop on Data Analytics Solutions for Real-Life Applications with EDBT/ICDT Joint Conference

3, 2019

Time Series Link Prediction using NMF

Faith W. Mutinda, Atsuhiro Nakashima, Koh Takeuchi, Yuya Sasaki, Makoto Onizuka

IPSJ Transactions on Databases

2, 2019

Flexible Framework for Data Integration and Update Propagation: System Aspect

Yasuhito Asano, Dennis-Florian Herr, Yasunori Ishihara, Hiroyuki Kato, Keisuke Nakano, Makoto Onizuka, Yuya Sasaki

BigComp Workshop on Software Foundations for Data Interoperability

2, 2019

Controlling and Sharing Distributed Data for Implementing Service Alliance

Yasuhito Asano, Zhenjiang Hu, Yasunori Ishihara, Hiroyuki Kato, Makoto Onizuka, Masatoshi Yoshikawa

BigComp Workshop on Software Foundations for Data Interoperability

2, 2019

Toward BX-Based Architecture for Controlling and Sharing Distributed Data

Yasunori Ishihara, Hiroyuki Kato, Keisuke Nakano, Makoto Onizuka, Yuya Sasaki

BigComp Workshop on Software Foundations for Data Interoperability

2, 2019

Time Series Link Prediction using NMF

Faith W. Mutinda, Atsuhiro Nakashima, Koh Takeuchi, Yuya Sasaki, Makoto Onizuka

IPSJ Transactions on Databases

2019

Vol/No/Pages: Vol. 12 , No. 4.0

Proximity Preserving Nonnegative Matrix Factorization

Yuya Ogawa, Koh Takeuchi, Yuya Sasaki, Makoto Onizuka

情報処理学会論文誌データベース (TOD)

2019

General Generator for Attributed Graphs with Community Structure

Seiji Maekawa, Jianpeng Zhang, George Fletcher, Makoto Onizuka

ECML PKDD, Graph Embedding and Mining Workshop, 2019

2019

Sequenced Route Query with Semantic Hierarchy

Yoshiharu Ishikawa, Yasuhiro Fujiwara, Makoto Onizuka

In Proceedings of International Conference on Extending Database Technology

3, 2018

Vol/No/Pages: pp. 37 -- 48

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

Fast Ad-hoc Search Algorithm for Personalized PageRank

Yasuhiro Fujiwara, Makoto Nakatsuji, Hiroaki Shiokawa, Takeshi Mishima, Makoto Onizuka

Institute of Electronics, Information and Communication Engineers

4, 2017

Vol/No/Pages: Vol. E100-D , No. 4.0

Graph Partitioning for Distributed Graph Processing

Makoto Onizuka, Toshimasa Fujimori, Hiroaki Shiokawa

Data Science and Engineering

3, 2017

Vol/No/Pages: Vol. 2 , No. 1.0 , pp. 94 -- 105

Efficient Data Slice Search for Exceptional View Detection

Yohei Mizuno, Yuya Sasaki, Makoto Onizuka

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

3, 2017

Scalable Graph Clustering and its Applications

Hiroaki Shiokawa, Makoto Onizuka

Encyclopedia of Social Network Analysis and Mining

1, 2017

Vol/No/Pages: pp. 1 -- 10

Rabbit Order: Just-in-Time Parallel Reordering for Fast Graph Analysis

Junya Arai, Hiroaki Shiokawa, Takeshi Yamamuro, Makoto Onizuka, Sotetsu Iwamura

International Parallel and Distributed Processing Symposium

5, 2016

Vol/No/Pages: pp. 22 -- 31

SCAN++: Efficient Algorithm for Finding Clusters, Hubs and Outliers on Largescale Graphs

Hiroaki Shiokawa, Yasuhiro Fujiwara, Makoto Onizuka

In Proceedings of the Very Large Data Bases Endowment

7, 2015

Vol/No/Pages: Vol. 8 , No. 11.0 , pp. 1178 -- 1189

Tree Contraction for Compressed Suffix Arrays on Modern Processors

Takeshi Yamamuro, Makoto Onizuka, Toshimori Honjo

In Proceedings of International Conference on Database Systems for Advanced Applications

4, 2015

Vol/No/Pages: pp. 363 -- 378

A Database Cluster for High Performance with a New High Reliability

Takeshi Mishima, Masao Fujii, Yasuhiro Fujiwara, Makoto Onizuka

In Proceedings of Applied Computing

2015

Optimization for Iterative Queries on MapReduce

Makoto Onizuka, Hiroyuki Kato, Soichiro Hidaka, Keisuke Nakano, Zhenjiang Hu

In Proceedings of the Very Large Data Bases Endowment

12, 2013

Vol/No/Pages: Vol. 7 , No. 4.0 , pp. 241 -- 252

Fast Algorithm for Modularity-Based Graph Clustering

Hiroaki Shiokawa, Yasuhiro Fujiwara, Makoto Onizuka

In Proceedings of Association for Advancement of Artificial Intelligence

6, 2013

Vol/No/Pages: pp. 1170 -- 1176

Fast and Exact Top-k Algorithm for PageRank

Yasuhiro Fujiwara, Makoto Nakatsuji, Hiroaki Shiokawa, Takeshi Mishima, Makoto Onizuka

In Proceedings of Association for Advancement of Artificial Intelligence

6, 2013

Vol/No/Pages: pp. 1106 -- 1112

Efficient Ad-hoc Search for Personalized PageRank

Yasuhiro Fujiwara, Makoto Nakatsuji, Hiroaki Shiokawa, Takeshi Mishima, Makoto Onizuka

In Proceedings of SIGMOD

6, 2013

Vol/No/Pages: pp. 445 -- 456

Effcient Search Algorithm for SimRank

Yasuhiro Fujiwara, Makoto Nakatsuji, Hiroaki Shiokawa, Makoto Onizuka

In Proceedings of International Conference of Data Engineering

4, 2013

Vol/No/Pages: pp. 589 -- 600

Efficient Personalized Pagerank with Accuracy Assurance

Yasuhiro Fujiwara, Makoto Nakatsuji, Takeshi Yamamuro, Hiroaki Shiokawa, Makoto Onizuka

In Proceedings of Knowledge Discovery and Data Mining

8, 2012

Vol/No/Pages: pp. 15 -- 23

VAST-Tree: A Vector-Advanced and Compressed Structure for Massive Data Tree Traversal

Takeshi Yamamuro, Makoto Onizuka, Toshio Hikata, Masashi Yamamuro

In Proceedings of International Conference on Extending Database Technology

3, 2012

Vol/No/Pages: pp. 396 -- 407

Fast and Exact Top-k Search for Random Walk with Restart

Yasuhiro Fujiwara, Makoto Nakatsuji, Makoto Onizuka, Masaru Kitsuregawa

In Proceedings of the Very Large Data Bases Endowment

1, 2012

Vol/No/Pages: Vol. 5 , No. 5.0 , pp. 442 -- 453