Search Results for author: Hiroki Ohashi

Found 10 papers, 7 papers with code

MILA: Memory-Based Instance-Level Adaptation for Cross-Domain Object Detection

1 code implementation3 Sep 2023 Onkar Krishna, Hiroki Ohashi, Saptarshi Sinha

A source sample is considered suitable if it differs from the target sample only in domain, without differences in unimportant characteristics such as orientation and color, which can hinder the model's focus on aligning the domain difference.

object-detection Object Detection +1

Prompter: Utilizing Large Language Model Prompting for a Data Efficient Embodied Instruction Following

no code implementations7 Nov 2022 Yuki Inoue, Hiroki Ohashi

However, as it is still in the early days of importing modular ideas to EIF, a search for modules effective in the EIF task is still far from a conclusion.

Instruction Following Language Modelling +1

Difficulty-Net: Learning to Predict Difficulty for Long-Tailed Recognition

1 code implementation7 Sep 2022 Saptarshi Sinha, Hiroki Ohashi

Long-tailed datasets, where head classes comprise much more training samples than tail classes, cause recognition models to get biased towards the head classes.

Long-tail Learning Meta-Learning

Class-Difficulty Based Methods for Long-Tailed Visual Recognition

1 code implementation29 Jul 2022 Saptarshi Sinha, Hiroki Ohashi, Katsuyuki Nakamura

Further, we use the difficulty measures of each class to design a novel weighted loss technique called `class-wise difficulty based weighted (CDB-W) loss' and a novel data sampling technique called `class-wise difficulty based sampling (CDB-S)'.

Action Classification Image Classification +4

Human-error-potential Estimation based on Wearable Biometric Sensors

no code implementations15 Nov 2021 Hiroki Ohashi, Hiroto Nagayoshi

This study tackles on a new problem of estimating human-error potential on a shop floor on the basis of wearable sensors.

Sensor-Augmented Egocentric-Video Captioning with Dynamic Modal Attention

1 code implementation7 Sep 2021 Katsuyuki Nakamura, Hiroki Ohashi, Mitsuhiro Okada

We compared the proposed sensor-fusion method with strong baselines on the MMAC Captions dataset and found that using sensor data as supplementary information to the egocentric-video data was beneficial, and that our proposed method outperformed the strong baselines, demonstrating the effectiveness of the proposed method.

Sensor Fusion Video Captioning

Influence Estimation for Generative Adversarial Networks

1 code implementation ICLR 2021 Naoyuki Terashita, Hiroki Ohashi, Yuichi Nonaka, Takashi Kanemaru

To this end, (1) we propose an influence estimation method that uses the Jacobian of the gradient of the generator's loss with respect to the discriminator's parameters (and vice versa) to trace how the absence of an instance in the discriminator's training affects the generator's parameters, and (2) we propose a novel evaluation scheme, in which we assess harmfulness of each training instance on the basis of how GAN evaluation metric (e. g., inception score) is expect to change due to the removal of the instance.

Class-Wise Difficulty-Balanced Loss for Solving Class-Imbalance

1 code implementation5 Oct 2020 Saptarshi Sinha, Hiroki Ohashi, Katsuyuki Nakamura

We claim that the 'difficulty' of a class as perceived by the model is more important to determine the weighting.

Long-tail Learning

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