Daichi Amagata

Publication Activity (10 Years)

Years Active: 2013-2024
Publications (10 Years): 84

Top Topics

Semantic Representations

Top Venues

PerCom Workshops

Publications

Zhi Li, Daichi Amagata, Yihong Zhang, Takahiro Hara, Shuichiro Haruta, Kei Yonekawa, Mori Kurokawa
Mutual Information-based Preference Disentangling and Transferring for Non-overlapped Multi-target Cross-domain Recommendations. SIGIR (2024)
Daichi Amagata
Independent Range Sampling on Interval Data. ICDE (2024)
Daichi Amagata, Takahiro Hara
Efficient Density-peaks Clustering Algorithms on Static and Dynamic Data in Euclidean Space. ACM Trans. Knowl. Discov. Data 18 (1) (2024)
Daichi Amagata
Independent Range Sampling on Interval Data (Longer Version). CoRR (2024)
Daichi Amagata, Junya Yamada, Yuchen Ji, Takahiro Hara
Efficient Algorithms for Top-k Stabbing Queries on Weighted Interval Data (Full Version). CoRR (2024)
Yuchen Ji, Daichi Amagata, Yuya Sasaki, Takahiro Hara
SAFE: Sampling-Assisted Fast Learned Cardinality Estimation for Dynamic Spatial Data. DEXA (2) (2024)
Daichi Amagata, Junya Yamada, Yuchen Ji, Takahiro Hara
Efficient Algorithms for Top-k Stabbing Queries on Weighted Interval Data. DEXA (1) (2024)
Daichi Amagata
Fair k-center Clustering with Outliers. AISTATS (2024)
Shunya Nishio, Daichi Amagata, Takahiro Hara
Approximate Reverse Top-k Spatial-Keyword Queries. MDM (2023)
Kohei Hirata, Daichi Amagata, Sumio Fujita, Takahiro Hara
Categorical Diversity-Aware Inner Product Search. IEEE Access 11 (2023)
Hao Niu, Duc Nguyen, Kei Yonekawa, Mori Kurokawa, Chihiro Ono, Daichi Amagata, Takuya Maekawa, Takahiro Hara
User-irrelevant Cross-domain Association Analysis for Cross-domain Recommendation with Transfer Learning. ICDAR@ICMR (2023)
Shunya Nishio, Daichi Amagata, Takahiro Hara
Lamps: Location-Aware Moving Top-k Pub/Sub (Extended abstract). ICDE (2023)
Yue Zhao, Yihong Zhang, Daichi Amagata, Takahiro Hara
POI Recommendation by Learning Short-, Long- and Mid-Term Preferences through GNN. MDM (2023)
Daichi Amagata, Alejandro Ramos, Ryo Shirai, Takahiro Hara
Fast Algorithm for Embedded Order Dependency Validation. SSDBM (2023)
Keizo Hori, Yuya Sasaki, Daichi Amagata, Yuki Murosaki, Makoto Onizuka
Learned Spatial Data Partitioning. aiDM@SIGMOD (2023)
Keizo Hori, Yuya Sasaki, Daichi Amagata, Yuki Murosaki, Makoto Onizuka
Learned spatial data partitioning. CoRR (2023)
Kazuyoshi Aoyama, Daichi Amagata, Sumio Fujita, Takahiro Hara
Simpler is Much Faster: Fair and Independent Inner Product Search. SIGIR (2023)
Alejandro Ramos, Takuya Uemura, Daichi Amagata, Ryo Shirai, Takahiro Hara
Fast Algorithm for Embedded Order Dependency Validation (Extended Version). CoRR (2023)
Daichi Amagata
Diversity Maximization in the Presence of Outliers. AAAI (2023)
Daichi Amagata, Takahiro Hara
Reverse Maximum Inner Product Search: Formulation, Algorithms, and Analysis. ACM Trans. Web 17 (4) (2023)
Zhi Li, Daichi Amagata, Yihong Zhang, Takahiro Hara, Shuichiro Haruta, Kei Yonekawa, Mori Kurokawa
Semantic Relation Transfer for Non-overlapped Cross-domain Recommendations. PAKDD (3) (2023)
Zhi Li, Daichi Amagata, Yihong Zhang, Takahiro Hara, Shuichiro Haruta, Kei Yonekawa, Mori Kurokawa
Debiasing Graph Transfer Learning via Item Semantic Clustering for Cross-Domain Recommendations. CoRR (2022)
Kohei Hirata, Daichi Amagata, Takahiro Hara
Cardinality Estimation in Inner Product Space. IEEE Open J. Comput. Soc. 3 (2022)
Ryosuke Taniguchi, Daichi Amagata, Takahiro Hara
Efficient Retrieval of Top-k Weighted Triangles on Static and Dynamic Spatial Data. IEEE Access 10 (2022)
Yuchen Ji, Daichi Amagata, Yuya Sasaki, Takahiro Hara
A Performance Study of One-dimensional Learned Cardinality Estimation. DOLAP (2022)
Daichi Amagata
Scalable and Accurate Density-Peaks Clustering on Fully Dynamic Data. Big Data (2022)
Zhi Li, Daichi Amagata, Yihong Zhang, Takuya Maekawa, Takahiro Hara, Kei Yonekawa, Mori Kurokawa
HML4Rec: Hierarchical meta-learning for cold-start recommendation in flash sale e-commerce. Knowl. Based Syst. 255 (2022)
Shunya Nishio, Daichi Amagata, Takahiro Hara
Lamps: Location-Aware Moving Top-k Pub/Sub. IEEE Trans. Knowl. Data Eng. 34 (1) (2022)
Ryosuke Taniguchi, Daichi Amagata, Takahiro Hara
Retrieving Top-N Weighted Spatial k-cliques. Big Data (2022)
Daichi Amagata, Makoto Onizuka, Takahiro Hara
Fast, exact, and parallel-friendly outlier detection algorithms with proximity graph in metric spaces. VLDB J. 31 (4) (2022)
Zhi Li, Daichi Amagata, Yihong Zhang, Takahiro Hara, Shuichiro Haruta, Kei Yonekawa, Mori Kurokawa
Debiasing Graph Transfer Learning via Item Semantic Clustering for Cross-Domain Recommendations. Big Data (2022)
Ryosuke Taniguchi, Daichi Amagata, Takahiro Hara
Efficient Retrieval of Top-k Weighted Spatial Triangles. DASFAA (1) (2022)
Kohei Hirata, Daichi Amagata, Sumio Fujita, Takahiro Hara
Solving Diversity-Aware Maximum Inner Product Search Efficiently and Effectively. RecSys (2022)
Daichi Amagata, Takahiro Hara
Fast Density-Peaks Clustering: Multicore-based Parallelization Approach. CoRR (2022)
Daichi Amagata, Yusuke Arai, Sumio Fujita, Takahiro Hara
Learned k-NN Distance Estimation. CoRR (2022)
Daichi Amagata, Yusuke Arai, Sumio Fujita, Takahiro Hara
Learned k-NN distance estimation. SIGSPATIAL/GIS (2022)
Daichi Amagata, Makoto Onizuka, Takahiro Hara
Fast and Exact Outlier Detection in Metric Spaces: A Proximity Graph-based Approach. CoRR (2021)
Daichi Amagata, Takahiro Hara
Reverse Maximum Inner Product Search: How to efficiently find users who would like to buy my item? CoRR (2021)
Cheng Chen, Takuya Maekawa, Daichi Amagata, Takahiro Hara
Predicting Next-use Mobile Apps Using App Semantic Representations. J. Inf. Process. 29 (2021)
Daichi Amagata, Makoto Onizuka, Takahiro Hara
Fast and Exact Outlier Detection in Metric Spaces: A Proximity Graph-based Approach. SIGMOD Conference (2021)
Daichi Amagata, Takahiro Hara
Fast Density-Peaks Clustering: Multicore-based Parallelization Approach. SIGMOD Conference (2021)
Hayato Nakama, Daichi Amagata, Takahiro Hara
Approximate Top-k Inner Product Join with a Proximity Graph. IEEE BigData (2021)
Shohei Tsuruoka, Daichi Amagata, Shunya Nishio, Takahiro Hara
Distributed Spatial-Keyword kNN Monitoring for Location-aware Pub/Sub. CoRR (2021)
Yusuke Arai, Daichi Amagata, Sumio Fujita, Takahiro Hara
LGTM: A Fast and Accurate kNN Search Algorithm in High-Dimensional Spaces. DEXA (2) (2021)
Daichi Amagata, Takahiro Hara
Reverse Maximum Inner Product Search: How to efficiently find users who would like to buy my item? RecSys (2021)
Daichi Amagata, Shohei Tsuruoka, Yusuke Arai, Takahiro Hara
Feat-SKSJ: Fast and Exact Algorithm for Top-k Spatial-Keyword Similarity Join. SIGSPATIAL/GIS (2021)
Jun Murao, Kei Yonekawa, Mori Kurokawa, Daichi Amagata, Takuya Maekawa, Takahiro Hara
Concept Drift Detection with Denoising Autoencoder in Incomplete Data. MobiQuitous (2021)
Boqi Gao, Takuya Maekawa, Daichi Amagata, Takahiro Hara
Detecting Reinforcement Learning-Based Grey Hole Attack in Mobile Wireless Sensor Networks. IEICE Trans. Commun. (5) (2020)
Duc Nguyen, Hao Niu, Kei Yonekawa, Mori Kurokawa, Chihiro Ono, Daichi Amagata, Takuya Maekawa, Takahiro Hara
On the Transferability of Deep Neural Networks for Recommender System. IAL@PKDD/ECML (2020)
Shohei Tsuruoka, Daichi Amagata, Shunya Nishio, Takahiro Hara
Distributed Spatial-Keyword kNN Monitoring for Location-aware Pub/Sub. SIGSPATIAL/GIS (2020)
Boqi Gao, Daichi Amagata, Takuya Maekawa, Takahiro Hara
Detecting Energy Depriving Malicious Nodes by Unsupervised Learning in Energy Harvesting Cooperative Wireless Sensor Networks. J. Inf. Process. 28 (2020)
Yuan Lyu, Daichi Amagata, Takuya Maekawa, Takahiro Hara, Hao Niu, Kei Yonekawa, Mori Kurokawa
Behavior Matching between Different Domains based on Canonical Correlation Analysis. WWW (Companion Volume) (2019)
Daichi Amagata, Takahiro Hara
Identifying the Most Interactive Object in Spatial Databases. ICDE (2019)
Daichi Amagata, Takahiro Hara, Chuan Xiao
Dynamic Set kNN Self-Join. ICDE (2019)
Kei Yonekawa, Hao Niu, Mori Kurokawa, Arei Kobayashi, Daichi Amagata, Takuya Maekawa, Takahiro Hara
A Heterogeneous Domain Adversarial Neural Network for Trans-Domain Behavioral Targeting. PAKDD (Workshops) (2019)
Hanxin Wang, Daichi Amagata, Takuya Maekawa, Takahiro Hara, Hao Niu, Kei Yonekawa, Mori Kurokawa
Preliminary Investigation of Alleviating User Cold-Start Problem in E-commerce with Deep Cross-Domain Recommender System. WWW (Companion Volume) (2019)
Cheng Chen, Takuya Maekawa, Daichi Amagata, Takahiro Hara
Preliminary Investigation of Predicting Next-Use Mobile Apps Using App Semantic Representations. PerCom Workshops (2019)
Daichi Amagata, Takahiro Hara
Correlation Set Discovery on Time-Series Data. DEXA (2) (2019)
Shinya Kato, Daichi Amagata, Shunya Nishio, Takahiro Hara
Discord Monitoring for Streaming Time-Series. DEXA (1) (2019)
Kei Yonekawa, Hao Niu, Mori Kurokawa, Arei Kobayashi, Daichi Amagata, Takuya Maekawa, Takahiro Hara
Advertiser-Assisted Behavioral Ad-Targeting via Denoised Distribution Induction. IEEE BigData (2019)
Toshimitsu Kamiya, Tatsuya Nakamura, Takuya Maekawa, Daichi Amagata, Takahiro Hara
Estimating User Contexts from Mobile Application Usage Histories. PerCom Workshops (2019)
Naoya Yoshimura, Takuya Maekawa, Daichi Amagata, Takahiro Hara
Upsampling Inertial Sensor Data from Wearable Smart Devices using Neural Networks. ICDCS (2019)
Naoya Yoshimura, Takuya Maekawa, Daichi Amagata, Takahiro Hara
Preliminary Investigation of Fine-Grained Gesture Recognition With Signal Super-Resolution. PerCom Workshops (2018)
Shuhei Hayashida, Daichi Amagata, Takahiro Hara, Xing Xie
Dummy Generation Based on User-Movement Estimation for Location Privacy Protection. IEEE Access 6 (2018)
Boqi Gao, Takuya Maekawa, Daichi Amagata, Takahiro Hara
Environment-Adaptive Malicious Node Detection in MANETs with Ensemble Learning. ICDCS (2018)
Shinya Kato, Daichi Amagata, Shunya Nishio, Takahiro Hara
Monitoring Range Motif on Streaming Time-Series. DEXA (1) (2018)
Daichi Amagata, Takahiro Hara, Makoto Onizuka
Space Filling Approach for Distributed Processing of Top-k Dominating Queries. IEEE Trans. Knowl. Data Eng. 30 (6) (2018)
Mori Kurokawa, Hao Niu, Kei Yonekawa, Arei Kobayashi, Daichi Amagata, Takuya Maekawa, Takahiro Hara
Virtual Touch-Point: Trans-Domain Behavioral Targeting via Transfer Learning. IEEE BigData (2018)
Daichi Amagata, Takahiro Hara
Mining Top-k Co-Occurrence Patterns across Multiple Streams (Extended Abstract). ICDE (2018)
Thilina Dissanayake, Takuya Maekawa, Daichi Amagata, Takahiro Hara
Detecting Door Events Using a Smartphone via Active Sound Sensing. Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. 2 (4) (2018)
Yujia Wang, Chalermpon Kongjit, Takahiro Hara, Daichi Amagata
Developing a Competency-based System to Enhance Knowledge Management Program. iCAST (2018)
Thilina Dissanayake, Takuya Maekawa, Daichi Amagata, Takahiro Hara
Preliminary Investigation of Detecting Events of Indoor Objects with Smartphone Active Sound Sensing. PerCom Workshops (2018)
Daichi Amagata, Takahiro Hara, Yuya Sasaki, Shojiro Nishio
Efficient cluster-based top-k query routing with data replication in MANETs. Soft Comput. 21 (15) (2017)
Daichi Amagata, Takahiro Hara
Mining Top-k Co-Occurrence Patterns across Multiple Streams. IEEE Trans. Knowl. Data Eng. 29 (10) (2017)
Yuki Nakayama, Daichi Amagata, Takahiro Hara
Probabilistic MaxRS Queries on Uncertain Data. DEXA (1) (2017)
Shunya Nishio, Daichi Amagata, Takahiro Hara
Geo-Social Keyword Top-k Data Monitoring over Sliding Window. DEXA (1) (2017)
Daichi Amagata, Takahiro Hara
A General Framework for MaxRS and MaxCRS Monitoring in Spatial Data Streams. ACM Trans. Spatial Algorithms Syst. 3 (1) (2017)
Naoya Taguchi, Daichi Amagata, Takahiro Hara
Geo-Social Keyword Skyline Queries. DEXA (1) (2017)
Daichi Amagata, Takahiro Hara, Shojiro Nishio
Sliding window top-k dominating query processing over distributed data streams. Distributed Parallel Databases 34 (4) (2016)
Daichi Amagata, Takahiro Hara
Monitoring MaxRS in Spatial Data Streams. EDBT (2016)
Yuki Nakayama, Daichi Amagata, Takahiro Hara
An Efficient Method for Identifying MaxRS Location in Mobile Ad Hoc Networks. DEXA (1) (2016)
Daichi Amagata, Yuya Sasaki, Takahiro Hara, Shojiro Nishio
Probabilistic nearest neighbor query processing on distributed uncertain data. Distributed Parallel Databases 34 (2) (2016)
Daichi Amagata, Takahiro Hara
Diversified set monitoring over distributed data streams. DEBS (2016)
Daichi Amagata, Yuya Sasaki, Takahiro Hara, Shojiro Nishio
Efficient processing of top-k dominating queries in distributed environments. World Wide Web 19 (4) (2016)
Daichi Amagata, Yuya Sasaki, Takahiro Hara, Shojiro Nishio
Efficient Multidimensional Top-k Query Processing in Wireless Multihop Networks. Mob. Inf. Syst. 2015 (2015)
Yuki Nakayama, Daichi Amagata, Takahiro Hara, Shojiro Nishio
Range-based Continuous Threshold Query Processing in Mobile Ad Hoc Networks. MoMM (2015)
Daichi Amagata, Takahiro Hara, Shojiro Nishio
Distributed top-k query processing on multi-dimensional data with keywords. SSDBM (2015)
Daichi Amagata, Yuya Sasaki, Takahiro Hara, Shojiro Nishio
CTR: An Efficient Cluster-based Top-k Query Routing in MANETs. MoMM (2014)
Daichi Amagata, Yuya Sasaki, Takahiro Hara, Shojiro Nishio
A Routing Method for Top-k Query Processing in Mobile Ad Hoc Networks. AINA (2013)
Daichi Amagata, Yuya Sasaki, Takahiro Hara, Shojiro Nishio
A Robust Routing Method for Top-k Queries in Mobile Ad Hoc Networks. MDM (1) (2013)