Search Results for author: Sohei Itahara

Found 7 papers, 0 papers with code

Watch from sky: machine-learning-based multi-UAV network for predictive police surveillance

no code implementations6 Mar 2022 Ryusei Sugano, Ryoichi Shinkuma, Takayuki Nishio, Sohei Itahara, Narayan B. Mandayam

This paper presents the watch-from-sky framework, where multiple unmanned aerial vehicles (UAVs) play four roles, i. e., sensing, data forwarding, computing, and patrolling, for predictive police surveillance.

BIG-bench Machine Learning reinforcement-learning +1

Communication-oriented Model Fine-tuning for Packet-loss Resilient Distributed Inference under Highly Lossy IoT Networks

no code implementations17 Dec 2021 Sohei Itahara, Takayuki Nishio, Yusuke Koda, Koji Yamamoto

However, generally, there is a communication system-level trade-off between communication latency and reliability; thus, to provide accurate DI results, a reliable and high-latency communication system is required to be adapted, which results in non-negligible end-to-end latency of the DI.

Frame-Capture-Based CSI Recomposition Pertaining to Firmware-Agnostic WiFi Sensing

no code implementations29 Oct 2021 Ryosuke Hanahara, Sohei Itahara, Kota Yamashita, Yusuke Koda, Akihito Taya, Takayuki Nishio, Koji Yamamoto

This indicates that WiFi sensing that leverages the BFM matrix is more practical to implement using the pre-installed APs.

Beamforming Feedback-based Model-Driven Angle of Departure Estimation Toward Legacy Support in WiFi Sensing: An Experimental Study

no code implementations27 Oct 2021 Sohei Itahara, Sota Kondo, Kota Yamashita, Takayuki Nishio, Koji Yamamoto, Yusuke Koda

Moreover, the evaluations performed in this study revealed that the BFF-based MUSIC achieved a comparable error of AoD estimation to the CSI-based MUSIC, while BFF is a highly compressed version of CSI in IEEE 802. 11ac/ax.

Packet-Loss-Tolerant Split Inference for Delay-Sensitive Deep Learning in Lossy Wireless Networks

no code implementations28 Apr 2021 Sohei Itahara, Takayuki Nishio, Koji Yamamoto

This study solves the problem of the incremental retransmission latency caused by packet loss in a lossy IoT network.

Distillation-Based Semi-Supervised Federated Learning for Communication-Efficient Collaborative Training with Non-IID Private Data

no code implementations14 Aug 2020 Sohei Itahara, Takayuki Nishio, Yusuke Koda, Masahiro Morikura, Koji Yamamoto

To this end, based on the idea of leveraging an unlabeled open dataset, we propose a distillation-based semi-supervised FL (DS-FL) algorithm that exchanges the outputs of local models among mobile devices, instead of model parameter exchange employed by the typical frameworks.

Data Augmentation Federated Learning

Lottery Hypothesis based Unsupervised Pre-training for Model Compression in Federated Learning

no code implementations21 Apr 2020 Sohei Itahara, Takayuki Nishio, Masahiro Morikura, Koji Yamamoto

The key idea of the proposed method is to obtain a ``good'' subnetwork from the original NN using the unlabeled data based on the lottery hypothesis.

Denoising Federated Learning +3

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