Daichi Amagata

Int'l Proc. Proceedings of International Conference on Database Systems for Advanced Applications, July 2024

Estimating Visited Stores through Positive-Unlabeled Learning *

Ryo Shirai , Ryo Imai , Sengpei Liew , Daichi Amagata , Tsubasa Takahashi , Takahiro Hara ,

Int'l Proc. Proceedings of International ACM SIGIR Conference on Research and Development in Information Retrieval, July 2024

Mutual Information-based Preference Disentangling and Transferring for Non-overlapped Multi-target Cross-domain Recommendations

Zhi Li , Daichi Amagata , Yihong Zhang , Takahiro Hara , Shuichiro Haruta , Kei Yonekawa , Mori Kurokawa ,

Int'l Proc. Proceedings of IEEE International Conference on Data Engineering, May 2024

Independent Range Sampling on Interval Data

Daichi Amagata ,

Int'l Proc. International Conference on Artificial Intelligence and Statistics, May 2024

Fair k-center Clustering with Outliers

Daichi Amagata ,

国内会議 データ工学と情報マネジメントに関するフォーラム, 2024年3月

動的空間データに対する高速学習型カーディナリティ推定 *

Ji Yuchen , 天方 大地 , 佐々木 勇和 , 原 隆浩 ,

Award 電気通信普及財団, 2024年3月

第39回電気通信普及財団賞(テレ コムシステム技術賞)

天方 大地 , 原 隆浩 ,

国内会議 データ工学と情報マネジメントに関するフォーラム, 2024年3月

逆 k-MIPSに基づく影響力の大きいアイテムの高速検索 *

青山 和禎 , 天方 大地 , 藤田 澄男 , 原 隆浩 ,

Journal 情報処理学会 論文誌, 2024年1月

異種ドメインのユーザ・アイテムクラスタ情報を用いたペアワイズ学習に基づく購買予測手法

海保 拓真 , 原 隆浩 , 黒川 茂莉 , 米川 慧 , 天方 大地 , 前川 卓也 ,

Journal ACM Transactions on Knowledge Discovery from Data, January 2024

Efficient Density-Peaks Clustering Algorithms on Static and Dynamic Data in Euclidean Space

Daichi Amagata , Takahiro Hara ,

Award Proceedings of International Conference on Very Large Data Bases, August 2023

Distinguished Reviewer

Daichi Amagata ,

Int'l Proc. Proceedings of International ACM SIGIR Conference on Research and Development in Information Retrieval, July 2023

Simpler is Much Faster: Fair and Independent Inner Product Search

Aoyama Kazuyoshi , Daichi Amagata , Sumio Fujita , Takahiro Hara ,

Journal ACM Transactions on the WEB, July 2023

Reverse Maximum Inner Product Search: Formulation, Algorithms, and Analysis

Daichi Amagata , Takahiro Hara ,

Int'l Proc. Proceedings of International Conference on Scientific and Statistical Database Management, July 2023

Fast Algorithm for Embedded Order Dependency Validation

Daichi Amagata , Centurion Ramos Julio Alejandro , Ryo Shirai , Takahiro Hara ,

Int'l Proc. Proceedings of IEEE International Conference on Mobile Data Management, July 2023

Approximate Reverse Top-k Spatial-Keyword Queries

Shunya Nishio , Daichi Amagata , Takahiro Hara ,

Int'l Proc. Proceedings of IEEE International Conference on Mobile Data Management, July 2023

POI Recommendation by Learning Short-, Long- and Mid-Term Preferences through GNN

Yue Zhao , Yihong Zhang , Daichi Amagata , Takahiro Hara ,

Int'l Proc. Proceedings of the ACM Workshop on Intelligent Cross-Data Analysis and Retrieval, June 2023

User-irrelevant Cross-domain Association Analysis for Cross-domain Recommendation with Transfer Learning

Hao Niu , Duc Nguyen , Kei Yonekawa , Mori Kurokawa , Chihiro Ono , Daichi Amagata , Takuya Maekawa , Takahiro Hara ,

Int'l Proc. The Pacific-Asia Conference on Knowledge Discovery and Data Mining, May 2023

Semantic Relation Transfer for Non-overlapped Cross-domain Recommendations *

Zhi Li , Daichi Amagata , Yihong Zhang , Takahiro Hara , Shuichiro Haruta , Kei Yonekawa , Mori Kurokawa ,

Award 文部科学大臣表彰, 2023年4月

科学技術賞（研究部門）

原 隆浩 , 前川 卓也 , 天方 大地 ,

Int'l Proc. International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data, March 2023

A Performance Study of One-dimensional Learned Cardinality Estimation.

Ji Yuchen , Daichi Amagata , Yuya Sasaki , Takahiro Hara ,

国内会議 データ工学と情報マネジメントに関するフォーラム, 2023年3月

距離結合問合せ高速化のための学習型空間パーティショニングの拡張 *

室崎 佑紀 , 堀内 美聡 , 佐々木 勇和 , 天方 大地 , 鬼塚 真 ,