Adaptive Importance Sampling with Automatic Model Selection in Value Function Approximation. - Hirotaka Hachiya; Takayuki Akiyama; Masashi Sugiyama; Jan Peters 001 (AAAI, 2008)

Efficient data reuse in value function approximation. - Hirotaka Hachiya; Takayuki Akiyama; Masashi Sugiyama; Jan Peters 001 (ADPRL, 2009)

Active Policy Iteration: Efficient Exploration through Active Learning for Value Function Approximation in Reinforcement Learning. - Takayuki Akiyama; Hirotaka Hachiya; Masashi Sugiyama (IJCAI, 2009)

Adaptive importance sampling for value function approximation in off-policy reinforcement learning. - Hirotaka Hachiya; Takayuki Akiyama; Masashi Sugiyama; Jan Peters 001 (Neural Networks, 2009)

Proposal and Evaluation of Serendipitous Recommendation Method Using General Unexpectedness. - Takayuki Akiyama; Kiyohiro Obara; Masaaki Tanizaki (PRSAT@RecSys, 2010)

Efficient exploration through active learning for value function approximation in reinforcement learning. - Takayuki Akiyama; Hirotaka Hachiya; Masashi Sugiyama (Neural Networks, 2010)

Modality Classification Method Based on the Model of Vibration Generation while Vehicles are Running. - Hiroki Ohashi; Takayuki Akiyama; Masaaki Yamamoto; Akiko Sato (CTS@SIGSPATIAL, 2013)

Smart phone localization method using dual-carrier acoustic waves. - Takayuki Akiyama; Masanari Nakamura; Masanori Sugimoto; Hiromichi Hashizume (IPIN, 2013)

Pedestrian Dead Reckoning using adaptive particle filter to human moving mode. - Takayuki Akiyama; Hiroki Ohashi; Akiko Sato; Goh Nakahara; Katsuya Yamasaki (IPIN, 2013)

Sensor-based trip-separation method based on ergodic HMM. - Hiroki Ohashi; Phong Xuan Nguyen; Takayuki Akiyama; Masaaki Yamamoto; Akiko Sato (IWCTS@SIGSPATIAL, 2014)

3D FDM-PAM: rapid and precise indoor 3D localization using acoustic signal for smartphone. - Masanari Nakamura; Masanori Sugimoto; Takayuki Akiyama; Hiromichi Hashizume (UbiComp Adjunct, 2014)

Light-synchronized acoustic ToA measurement system for mobile smart nodes. - Takayuki Akiyama; Masanori Sugimoto; Hiromichi Hashizume (IPIN, 2014)

Automatic trip-separation method using sensor data continuously collected by smartphone. - Hiroki Ohashi; Takayuki Akiyama; Masaaki Yamamoto; Akiko Sato (ITSC, 2014)

SyncSync: Time-of-arrival based localization method using light-synchronized acoustic waves for smartphones. - Takayuki Akiyama; Masanori Sugimoto; Hiromichi Hashizume (IPIN, 2015)

A rapid and accurate time-synchronization technique for acoustic localization using modulated illumination. - Hayato Kumaki; Masanori Sugimoto; Hiromichi Hashizume; Takayuki Akiyama; Taishi Saito (IPIN, 2015)

User-friendly activity recognition using SVM classifier and informative features. - Phong Xuan Nguyen; Takayuki Akiyama; Hiroki Ohashi; Goh Nakahara; Katsuya Yamasaki; Saito Hikaru (IPIN, 2015)

A spot-controllable data transfer technique using COTS speakers. - Masanari Nakamura; Takayuki Akiyama; Hiromichi Hashizume; Masanori Sugimoto (IPIN, 2016)

User-friendly heading estimation for arbitrary smartphone orientations. - Phong Xuan Nguyen; Takayuki Akiyama; Hiroki Ohashi; Goh Nakahara; Katsuya Yamasaki; Saito Hikaru (IPIN, 2016)

Trip-Extraction Method Based on Characteristics of Sensors and Human-Travel Behavior for Sensor-Based Travel Survey. - Hiroki Ohashi; Phong Xuan Nguyen; Takayuki Akiyama; Masaaki Yamamoto; Akiko Sato (J. Inf. Process., 2016)

Time-of-arrival-based smartphone localization using visible light communication. - Takayuki Akiyama; Masanori Sugimoto; Hiromichi Hashizume (IPIN, 2017)

Poster: Multicamera Synchronization for Smartphones using Optimally Modulated Illuminations. - Koki Kudo; Masanori Sugimoto; Takayuki Akiyama; Hiromichi Hashizume (MobiSys, 2017)

OFDM Visible Light Communication using Off-the-shelf Video Camera. - Shota Shimada; Takayuki Akiyama; Hiromichi Hashizume; Masanori Sugimoto (SenSys, 2017)

Time-of-Arrival-Based Indoor Smartphone Localization Using Light-Synchronized Acoustic Waves. - Takayuki Akiyama; Masanori Sugimoto; Hiromichi Hashizume (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2017)

Optimally Modulated Illumination for Rapid and Accurate Time Synchronization. - Masanori Sugimoto; Hayato Kumaki; Takayuki Akiyama; Hiromichi Hashizume (IEEE Trans. Signal Process., 2017)

Time-of-Arrival Based Acoustic Localization Technique Using Visible Light Communication for Smartphones. - Takayuki Akiyama (2017)

Hierarchical Model for Zero-shot Activity Recognition using Wearable Sensors. - Mohammad Al-Naser; Hiroki Ohashi; Sheraz Ahmed; Katsuyuki Nakamura; Takayuki Akiyama; Takuto Sato; Phong Xuan Nguyen; Andreas Dengel 001 (ICAART (2), 2018)

Experience Filtering for Robot Navigation using Deep Reinforcement Learning. - Phong Xuan Nguyen; Takayuki Akiyama; Hiroki Ohashi (ICAART (2), 2018)

High-Speed Optical Camera Communication Using an Optimally Modulated Signal. - Masanori Sugimoto; Hayato Kumaki; Takayuki Akiyama; Hiromichi Hashizume (ICASSP, 2018)

Vehicle's Weight Estimation Using Smartphone's Acceleration Data to Control Overloading. - Phong Xuan Nguyen; Takayuki Akiyama; Hiroki Ohashi; Masaaki Yamamoto; Akiko Sato (Int. J. Intell. Transp. Syst. Res., 2018)

Indoor crowd density estimation for efficient monitoring system. - Phong Xuan Nguyen; Takayuki Akiyama (IPIN (Short Papers/Work-in-Progress Papers), 2019)

Reducing Label Fragmentation During Time-series Data Annotation to Reduce Annotation Costs. - Joseph Korpela; Takayuki Akiyama; Takehiro Niikura; Katsuyuki Nakamura (UbiComp/ISWC Adjunct, 2021)

Towards Artefact Aware Human Motion Capture using Inertial Sensors Integrated into Loose Clothing. - Michael Lorenz; Gabriele Bleser; Takayuki Akiyama; Takehiro Niikura; Didier Stricker; Bertram Taetz (ICRA, 2022)

On Motion Artifacts Arising when Integrating Inertial Sensors into Loose Clothing Such as a Working Jacket. - Michael Lorenz; Rebecca Keilhauer; Takayuki Akiyama; Takehiro Niikura; Didier Stricker; Bertram Taetz; Gabriele Bleser-Taetz (CoDIT, 2023)