Hiroaki Murakami

Hiroaki Murakami (村上弘晃)
is a Project Assistant Professor at the Graduate School of Engineering, The University of Tokyo, and a member of the Kawahara Laboratory. His research interests lie in ubiquitous computing and sensor networks, with a particular focus on indoor localization, smart environments, and mobile sensing. He aims to develop systems that seamlessly integrate digital technology into physical spaces to enrich everyday experiences.

He received his Ph.D. in Information Science and Technology from Hokkaido University in 2021, under the supervision of Prof. Masanori Sugimoto. He also earned his B.E. and M.E. degrees from Hokkaido University in 2016 and 2018, respectively.

His work has been recognized with several honors, including the Best Paper Award at IEEE IPIN 2024 and the IPSJ Outstanding Paper Award from the Journal of Information Processing Society of Japan.

Contact
Email: murakami<at>akg.t.u-tokyo.ac.jp

Selected Projects

Indoor Localization
This work involves various indoor localization technologies, including acoustic signals, visible light, BLE, UWB, and IMU.

SyncEcho: Echo-Based Single Speaker Time Offset Estimation for Time-of-Flight Localization
ACM SenSys'24

Geometric Sound Profile: Multipath-Time-of-Flight Fingerprint for High-Accuracy Acoustic Localization
IEEE IPIN'24

Pedestrian Dead Reckoning for Multiple Walking Styles Using Classifier-Based Step Detection
IEEE J-ISPIN, 2023.

ALiSA: A Visible-Light Positioning System Using the Ambient Light Sensor Assembly in a Smartphone.
IEEE Sensors Journal, 2022.

Camera-Based Position Estimation using Frequency-Multiplexed Luminance Gradient.
IEEE PerCom'24 Industry Track.
In collaboration with LY Corporation.

Occlusion-Resilient UWB Localization Via Ceiling Reflection With Floor Anchor Installation.
ACM SenSys'25 Poster.
In collaboration with CyberAgent.

Smart Environments
This project is part of the RIISE Space Design for Co-Creation Research Program at The University of Tokyo.

Exploring the Capabilities of Large Language Models in Seat Recommendation Systems for Hot-Desking Offices.
ACM BuildSys'24

Acquisition and visualization of HVAC data by autonomous mobile robots.
CAADRIA'25

Mobile Sensing

MOCHA: mobile check-in application for university campuses beyond COVID-19.
ACM MobiHoc'22

Micro-Gesture Recognition of Tongue via Bone Conduction Sound.
ACM UIST'24 Poster

Recursive Queueing Estimation Using Smartphone-Based Acoustic Ranging.
ACM SenSys'22 Poster

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