Search Results for author: Takahiro Ogawa

Found 18 papers, 6 papers with code

Enhancing Generative Class Incremental Learning Performance with Model Forgetting Approach

no code implementations27 Mar 2024 Taro Togo, Ren Togo, Keisuke Maeda, Takahiro Ogawa, Miki Haseyama

This study presents a novel approach to Generative Class Incremental Learning (GCIL) by introducing the forgetting mechanism, aimed at dynamically managing class information for better adaptation to streaming data.

Class Incremental Learning Incremental Learning

Prompt-based Personalized Federated Learning for Medical Visual Question Answering

no code implementations15 Feb 2024 He Zhu, Ren Togo, Takahiro Ogawa, Miki Haseyama

We present a novel prompt-based personalized federated learning (pFL) method to address data heterogeneity and privacy concerns in traditional medical visual question answering (VQA) methods.

Medical Visual Question Answering Personalized Federated Learning +2

Importance-Aware Adaptive Dataset Distillation

no code implementations29 Jan 2024 Guang Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

Based on this observation, we propose an importance-aware adaptive dataset distillation (IADD) method that can improve distillation performance by automatically assigning importance weights to different network parameters during distillation, thereby synthesizing more robust distilled datasets.

Few-shot Personalized Saliency Prediction Based on Inter-personnel Gaze Patterns

no code implementations6 Jul 2023 Yuya Moroto, Keisuke Maeda, Takahiro Ogawa, Miki Haseyama

To efficiently treat the PSMs of other persons, this paper focuses on the selection of images to acquire eye-tracking data and the preservation of structural information of PSMs of other persons.

regression Saliency Prediction

Interpretable Visual Question Answering Referring to Outside Knowledge

no code implementations8 Mar 2023 He Zhu, Ren Togo, Takahiro Ogawa, Miki Haseyama

We present a novel multimodal interpretable VQA model that can answer the question more accurately and generate diverse explanations.

Image Captioning Question Answering +1

Boosting Automatic COVID-19 Detection Performance with Self-Supervised Learning and Batch Knowledge Ensembling

no code implementations19 Dec 2022 Guang Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

On the other hand, batch knowledge ensembling-based fine-tuning can utilize category knowledge of images in a batch according to their visual feature similarities to improve detection performance.

Self-Supervised Learning Transfer Learning

COVID-19 Detection Based on Self-Supervised Transfer Learning Using Chest X-Ray Images

no code implementations19 Dec 2022 Guang Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

We compared six self-supervised learning (SSL) methods (Cross, BYOL, SimSiam, SimCLR, PIRL-jigsaw, and PIRL-rotation) with the proposed method.

Representation Learning Self-Supervised Learning +1

Union-set Multi-source Model Adaptation for Semantic Segmentation

1 code implementation6 Dec 2022 Zongyao Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

Model adaptation is proposed as a new domain adaptation problem which requires access to a pre-trained model instead of data for the source domain.

Domain Adaptation Semantic Segmentation

RGMIM: Region-Guided Masked Image Modeling for Learning Meaningful Representation from X-Ray Images

no code implementations1 Nov 2022 Guang Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

To address this issue, this work aims to improve MIM for medical images and evaluate its effectiveness in an open X-ray image dataset.

Self-Supervised Learning valid

Dataset Distillation for Medical Dataset Sharing

1 code implementation29 Sep 2022 Guang Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

Sharing medical datasets between hospitals is challenging because of the privacy-protection problem and the massive cost of transmitting and storing many high-resolution medical images.

Dataset Complexity Assessment Based on Cumulative Maximum Scaled Area Under Laplacian Spectrum

no code implementations29 Sep 2022 Guang Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

Dataset complexity assessment aims to predict classification performance on a dataset with complexity calculation before training a classifier, which can also be used for classifier selection and dataset reduction.

Classification

Compressed Gastric Image Generation Based on Soft-Label Dataset Distillation for Medical Data Sharing

1 code implementation29 Sep 2022 Guang Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

Furthermore, our method can extract essential weights of DCNN models to reduce the memory required to save trained models for efficient medical data sharing.

Image Generation valid

Dataset Distillation Using Parameter Pruning

1 code implementation29 Sep 2022 Guang Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

In this study, we propose a novel dataset distillation method based on parameter pruning.

Gromov-Wasserstein Autoencoders

1 code implementation15 Sep 2022 Nao Nakagawa, Ren Togo, Takahiro Ogawa, Miki Haseyama

The GW metric measures the distance structure-oriented discrepancy between distributions even with different dimensionalities, which provides a direct measure between the latent and data spaces.

Disentanglement

TriBYOL: Triplet BYOL for Self-Supervised Representation Learning

no code implementations7 Jun 2022 Guang Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

Our method provides a feasible solution for self-supervised learning with real-world high-resolution images that uses small batch sizes.

Representation Learning Self-Supervised Learning

Self-Supervised Learning for Gastritis Detection with Gastric X-ray Images

no code implementations7 Apr 2021 Guang Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

The effectiveness of the proposed self-supervised learning method in gastritis detection is verified using a few annotated gastric X-ray images.

Self-Supervised Learning Specificity

Soft-Label Anonymous Gastric X-ray Image Distillation

1 code implementation7 Apr 2021 Guang Li, Ren Togo, Takahiro Ogawa, Miki Haseyama

The idea of our distillation method is to extract the valid information of the medical dataset and generate a tiny distilled dataset that has a different data distribution.

valid

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