no code implementations • 21 Jan 2024 • Sota Nemoto, Shunsuke Kitada, Hitoshi Iyatomi
This imbalance leads to misclassifications of the entity classes as the O-class.
no code implementations • 24 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.
no code implementations • 17 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.
no code implementations • 7 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.
no code implementations • 30 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.
no code implementations • 2 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.
no code implementations • 18 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.
1 code implementation • Asian Chapter of the Association for Computational Linguistics 2020 • Takumi Aoki, Shunsuke Kitada, Hitoshi Iyatomi
We propose a new character-based text classification framework for non-alphabetic languages, such as Chinese and Japanese.
1 code implementation • 25 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.
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.
1 code implementation • 17 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.
1 code implementation • 8 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.
no code implementations • 7 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.