Search Results for author: Shunsuke Kitada

Found 13 papers, 5 papers with code

Improving Prediction Performance and Model Interpretability through Attention Mechanisms from Basic and Applied Research Perspectives

no code implementations24 Mar 2023 Shunsuke Kitada

With the dramatic advances in deep learning technology, machine learning research is focusing on improving the interpretability of model predictions as well as prediction performance in both basic and applied research.

Feedback is Needed for Retakes: An Explainable Poor Image Notification Framework for the Visually Impaired

no code implementations17 Nov 2022 Kazuya Ohata, Shunsuke Kitada, Hitoshi Iyatomi

We propose a simple yet effective image captioning framework that can determine the quality of an image and notify the user of the reasons for any flaws in the image.

Image Captioning

DM$^2$S$^2$: Deep Multi-Modal Sequence Sets with Hierarchical Modality Attention

no code implementations7 Sep 2022 Shunsuke Kitada, Yuki Iwazaki, Riku Togashi, Hitoshi Iyatomi

There is increasing interest in the use of multimodal data in various web applications, such as digital advertising and e-commerce.

Expressions Causing Differences in Emotion Recognition in Social Networking Service Documents

no code implementations30 Aug 2022 Tsubasa Nakagawa, Shunsuke Kitada, Hitoshi Iyatomi

The proposed framework consists of a bidirectional encoder representations from transformers (BERT)-based detector that detects sentences causing differences in emotion recognition and an analysis that acquires expressions that characteristically appear in such sentences.

Emotion Recognition

Ad Creative Discontinuation Prediction with Multi-Modal Multi-Task Neural Survival Networks

no code implementations2 Apr 2022 Shunsuke Kitada, Hitoshi Iyatomi, Yoshifumi Seki

To improve the prediction performance for the two different types of discontinuations and for the ad creatives that contribute to sales, we introduce two new techniques: (1) a two-term estimation technique with multi-task learning and (2) a click-through rate-weighting technique for the loss function.

Multi-Task Learning Survival Analysis

Making Attention Mechanisms More Robust and Interpretable with Virtual Adversarial Training

no code implementations18 Apr 2021 Shunsuke Kitada, Hitoshi Iyatomi

That is, even if the model using our VAT-based technique is trained on unlabeled data from a source other than the target task, both the prediction performance and model interpretability can be improved.

Semi-Supervised Text Classification text-classification

Attention Meets Perturbations: Robust and Interpretable Attention with Adversarial Training

1 code implementation25 Sep 2020 Shunsuke Kitada, Hitoshi Iyatomi

To overcome the vulnerability to perturbations in the mechanism, we are inspired by adversarial training (AT), which is a powerful regularization technique for enhancing the robustness of the models.

AraDIC: Arabic Document Classification using Image-Based Character Embeddings and Class-Balanced Loss

1 code implementation ACL 2020 Mahmoud Daif, Shunsuke Kitada, Hitoshi Iyatomi

Classical and some deep learning techniques for Arabic text classification often depend on complex morphological analysis, word segmentation, and hand-crafted feature engineering.

Document Classification Feature Engineering +3

Conversion Prediction Using Multi-task Conditional Attention Networks to Support the Creation of Effective Ad Creative

1 code implementation17 May 2019 Shunsuke Kitada, Hitoshi Iyatomi, Yoshifumi Seki

Furthermore, conditional attention focuses attention of each ad creative with the consideration of its genre and target gender, thus improving conversion prediction accuracy.

Multi-Task Learning

End-to-End Text Classification via Image-based Embedding using Character-level Networks

1 code implementation8 Oct 2018 Shunsuke Kitada, Ryunosuke Kotani, Hitoshi Iyatomi

For analysing and/or understanding languages having no word boundaries based on morphological analysis such as Japanese, Chinese, and Thai, it is desirable to perform appropriate word segmentation before word embeddings.

Document Classification General Classification +3

Skin lesion classification with ensemble of squeeze-and-excitation networks and semi-supervised learning

no code implementations7 Sep 2018 Shunsuke Kitada, Hitoshi Iyatomi

In this report, we introduce the outline of our system in Task 3: Disease Classification of ISIC 2018: Skin Lesion Analysis Towards Melanoma Detection.

Classification Data Augmentation +3

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