Yukihiko Okada

49 papers B 13C 1Misc 1Journal 24Unranked 10

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Estimation of conditional average treatment effects on distributed confidential data. Expert Syst. Appl. Yuji Kawamata, Ryoki Motai, Yukihiko Okada, Akira Imakura, Tetsuya Sakurai
2026	J	`jnl`	Single-Round Clustered Federated Learning via Data Collaboration Analysis for Non-IID Data. CoRR Sota Sugawara, Yuji Kawamata, Akihiro Toyoda, Tomoru Nakayama, Yukihiko Okada
2025	B	`conf`	A Reliable Decision Support Framework for SME Default Prediction Using Uncertainty-Aware Bayesian GEV Regression. IEEE Big Data Kaito Terada, Keiji Abe, Toshihiko Takeda, Yuji Kawamata, Ryoki Motai, Yukihiko Okada
2025	J	`jnl`	A new type of federated clustering: A non-model-sharing approach. CoRR Yuji Kawamata, Kaoru Kamijo, Masateru Kihira, Akihiro Toyoda, Tomoru Nakayama, Akira Imakura, Tetsuya Sakurai, Yukihiko Okada
2025	J	`jnl`	Anomaly Detection in Double-entry Bookkeeping Data by Federated Learning System with Non-model Sharing Approach. CoRR Sota Mashiko, Yuji Kawamata, Tomoru Nakayama, Tetsuya Sakurai, Yukihiko Okada
2025	J	`jnl`	Auto Tensor Singular Value Thresholding: A Non-Iterative and Rank-Free Framework for Tensor Denoising. CoRR Hiroki Hasegawa, Yukihiko Okada
2025	B	`conf`	Cash-Flow Prediction Model Using Graph Neural Networks and Spatiotemporal Information from Double-Entry Bookkeeping Data. IEEE Big Data Ryoki Motai, Masato Kamebuchi, Sora Watanabe, Ryo Matsumoto, Keiichi Azuma, Yukihiko Okada
2025	B	`conf`	DC-CP: Data Collaboration Conformal Prediction from Model Training to Conformal Prediction in Single-Round Communication While Preserving Privacy. IEEE Big Data Tomoru Nakayama, Yuji Kawamata, Akira Imakura, Yukihiko Okada
2025	—	`conf`	Designing Undetectable Morphing Speech: How Morph Rate and Discrete/Continuous Changes Influences Change Detection Thresholds. AHs Hiiro Okano, Naoto Wakatsuki, Yukihiko Okada, Keiichi Zempo
2025	J	`jnl`	Framework for Emotion Recognition Using Cross-Modal Transformers With Non-Contact Multimodal Signals Aiming Clinical Service Support. IEEE Access Homura Kawamura, Tomofumi Miura, Yuka Maeda, Yukihiko Okada, Keiichi Zempo
2025	J	`jnl`	Interaction Tensor Shap. CoRR Hiroki Hasegawa, Yukihiko Okada
2024	B	`conf`	An explainable framework based on counterfactual explanations for multi-class financial distress prediction of small and medium enterprises. IEEE Big Data Renon Ando, Yuji Kawamata, Toshihiko Takeda, Yukihiko Okada
2024	J	`jnl`	Collaborative causal inference on distributed data. Expert Syst. Appl. Yuji Kawamata, Ryoki Motai, Yukihiko Okada, Akira Imakura, Tetsuya Sakurai
2024	J	`jnl`	Estimating Bridge Natural Frequencies Based on Modal Analysis of Vehicle-Bridge Synchronized Vibration Data. Sensors Eugene Mudahemuka, Masatatsu Miyagi, Ryota Shin, Naoki Kaneko, Yukihiko Okada, Kyosuke Yamamoto
2024	J	`jnl`	Estimation of conditional average treatment effects on distributed data: A privacy-preserving approach. CoRR Yuji Kawamata, Ryoki Motai, Yukihiko Okada, Akira Imakura, Tetsuya Sakurai
2024	B	`conf`	Practical Experiment of Predicting Cash Flows with LSTM and Double-entry Bookkeeping Data. IEEE Big Data Ryoki Motai, Sota Mashiko, Masato Kamebuchi, Sora Watanabe, Ryo Matsumoto, Yukihiko Okada
2024	B	`conf`	Proposing a Low-Rank Approximation Method with Mathematical Guarantees for High-Dimensional Tensor Data. IEEE Big Data Hiroki Hasegawa, Kazuyoshi Yata, Yukihiko Okada, Jun Kunimatsu
2024	—	`conf`	pSCOUTER: Time-Series Emotion Classification Using Contactless Measured Multimodal Biosignals in Medical Diagnosis. UbiComp Companion Homura Kawamura, Zhaolong Wang, Kotone Harima, Tatuya Yamanishi, Tomohumi Miura, Yuka Maeda, Yukihiko Okada, Keiichi Zempo
2023	J	`jnl`	Another use of SMOTE for interpretable data collaboration analysis. Expert Syst. Appl. Akira Imakura, Masateru Kihira, Yukihiko Okada, Tetsuya Sakurai
2023	B	`conf`	Data-Driven Approaches to Detecting Misdeliveries in Truck Logistics using GPS Data. IEEE Big Data Ayumu Hidaka, Ryota Shin, Atsushi Tsuchiya, Norihiko Nakabayashi, Yukihiko Okada, Yohei Shida
2023	J	`jnl`	Discussion on a Vehicle-Bridge Interaction System Identification in a Field Test. Sensors Ryota Shin, Yukihiko Okada, Kyosuke Yamamoto
2023	B	`conf`	Does Double-entry Bookkeeping Information Generated Using node2vec Contribute to Forecasting Future Performance? IEEE Big Data Ryoki Motai, Masato Kamebuchi, Sora Watanabe, Ryo Matsumoto, Yukihiko Okada
2023	—	`conf`	Effect of Salesperson Avatar Automatically Mimicking Customer's Nodding on the Enjoyment of Conversation in Virtual Environments. AHs Takumi Wakabayashi, Yukihiko Okada, Keiichi Zempo
2023	B	`conf`	Effect of voice imitation using voice conversion by avatar on customer service in Virtual Environments. VRST Hiiro Okano, Yukihiko Okada, Naoto Wakatsuki, Keiichi Zempo
2023	B	`conf`	Effects of symmetrical avatar arm movements on the sense of ownership of both hands inverted in a mirror. VRST Toko Fujita, Moeki Horii, Luis David Torres Mailleux, Masatatsu Miyagi, Yukihiko Okada, Keiichi Zempo
2023	B	`conf`	Method for creating privacy-preserving information using Probabilistic Latent Semantic Analysis. IEEE Big Data Yuki Sugawara, Eiichi Sakurai, Yoichi Motomura, Yukihiko Okada, Kai Tanabe, Akiko Tsukao, Shinya Kuno
2023	J	`jnl`	Non-readily identifiable data collaboration analysis for multiple datasets including personal information. Inf. Fusion Akira Imakura, Tetsuya Sakurai, Yukihiko Okada, Tomoya Fujii, Teppei Sakamoto, Hiroyuki Abe
2023	J	`jnl`	Practical Application of Drive-By Monitoring Technology to Road Roughness Estimation Using Buses in Service. Sensors Kyosuke Yamamoto, Ryota Shin, Katsuki Sakuma, Masaaki Ono, Yukihiko Okada
2023	—	`conf`	Rapport Building via a Digital Avatar with a "Voice" Entering into a Customer's Personal Space. AHs Azusa Yamazaki, Naoto Wakatsuki, Koichi Mizutani, Yukihiko Okada, Keiichi Zempo
2023	B	`conf`	Whispering salesperson: perceptual illusion of interpersonal distance and ventriloquism effect in service of virtual environment by use of whisper voice. VRST Mizuki Yabutani, Azusa Yamazaki, Naoto Wakatsuki, Yukihiko Okada, Keiichi Zempo
2022	J	`jnl`	Another Use of SMOTE for Interpretable Data Collaboration Analysis. CoRR Akira Imakura, Masateru Kihira, Yukihiko Okada, Tetsuya Sakurai
2022	J	`jnl`	Application of C-LSTM Networks to Automatic Labeling of Vehicle Dynamic Response Data for Bridges. Sensors Ryota Shin, Yukihiko Okada, Kyosuke Yamamoto
2022	J	`jnl`	Collaborative causal inference on distributed data. CoRR Yuji Kawamata, Ryoki Motai, Yukihiko Okada, Akira Imakura, Tetsuya Sakurai
2022	—	`conf`	Impact on the Quality of Interpersonal Relationships by Proximity using the Ventriloquism Effect in a Virtual Environment. ISS Companion Azusa Yamazaki, Naoto Wakatsuki, Koichi Mizutani, Yukihiko Okada, Keiichi Zempo
2022	J	`jnl`	Mouth-in-the-Door: The Effect of a Sound Image of an Avatar Intruding on Personal Space That Deviates in Position From the Visual Image. IEEE Access Keiichi Zempo, Azusa Yamazaki, Naoto Wakatsuki, Koichi Mizutani, Yukihiko Okada
2022	J	`jnl`	Non-readily identifiable data collaboration analysis for multiple datasets including personal information. CoRR Akira Imakura, Tetsuya Sakurai, Yukihiko Okada, Tomoya Fujii, Teppei Sakamoto, Hiroyuki Abe
2022	B	`conf`	Predictive model of frailty onset using Bayesian network. IEEE Big Data Yujiro Kawai, Eiichi Sakurai, Yuki Sugawara, Yukihiko Okada, Kai Tanabe, Akiko Tsukao, Shinya Kuno
2021	J	`jnl`	Decentralized Learning with Virtual Patients for Medical Diagnosis of Diabetes. SN Comput. Sci. Yuta Takahashi, Hanten Chang, Akie Nakai, Rina Kagawa, Hiroyasu Ando, Akira Imakura, Yukihiko Okada, Hideo Tsurushima, Kenji Suzuki, Tetsuya Sakurai
2021	—	`conf`	Effects of Audio-Visual Information on Interpersonal Distance in Real and Virtual Environments. INTERACT (5) Azusa Yamazaki, Naoto Wakatsuki, Koichi Mizutani, Yukihiko Okada, Keiichi Zempo
2021	J	`jnl`	Interpretable collaborative data analysis on distributed data. Expert Syst. Appl. Akira Imakura, Hiroaki Inaba, Yukihiko Okada, Tetsuya Sakurai
2021	J	`jnl`	Sensing Framework for the Internet of Actors in the Value Co-Creation Process with a Beacon-Attachable Indoor Positioning System. Sensors Keiichi Zempo, Taiga Arai, Takuya Aoki, Yukihiko Okada
2020	J	`jnl`	Federated Learning System without Model Sharing through Integration of Dimensional Reduced Data Representations. CoRR Anna Bogdanova, Akie Nakai, Yukihiko Okada, Akira Imakura, Tetsuya Sakurai
2020	J	`jnl`	Interpretable collaborative data analysis on distributed data. CoRR Akira Imakura, Hiroaki Inaba, Yukihiko Okada, Tetsuya Sakurai
2020	Misc	`conf`	Real-time reassurance monitoring shopping basket in retail store: poster abstract. SenSys Azusa Yamazaki, Ryo Akatsu, Yukihiko Okada, Keiichi Zempo
2019	C	`conf`	Evaluation of Indoor Positioning System based on Attachable Infrared Beacons in Metal Shelf Environment. ICCE Taiga Arai, Takahiro Yoshizawa, Takuya Aoki, Keiichi Zempo, Yukihiko Okada
2019	—	`conf`	Queueing Analysis of Home Delivery Services with Parcel Lockers. QTNA Shinto Hideyama, Tuan Phung-Duc, Yukihiko Okada
2019	—	`conf`	Sensor network to measure UbiComp/ISWC Adjunct Taiga Arai, Yusuke Chida, Yukihiko Okada, Keiichi Zempo
2019	—	`conf`	Shopping Baskets for On-line Beacon Sensor Network in Retail Store. CCNC Yuji Suda, Taiga Arai, Takahiro Yoshizawa, Yuki Fujita, Keiichi Zempo, Yukihiko Okada
2012	—	`conf`	Progress in the Healthcare Service Innovation Project at the Tsukuba University Hospital. SRII Global Conference Hideaki Takagi, Hisashi Kurata, Yukihiko Okada, Maiko Shigeno, Akiko Yoshise, Yongbing Zhang, Keizo Yamashita