Search Results for author: Takashi Matsubara

Found 18 papers, 5 papers with code

Predicated Diffusion: Predicate Logic-Based Attention Guidance for Text-to-Image Diffusion Models

no code implementations3 Oct 2023 Kota Sueyoshi, Takashi Matsubara

We consider that the root of the above issues lies in the text encoder, which often focuses only on individual words and neglects the logical relationships between them.

Image Generation

Good Lattice Training: Physics-Informed Neural Networks Accelerated by Number Theory

no code implementations26 Jul 2023 Takashi Matsubara, Takaharu Yaguchi

However, the solutions to PDEs are inherently infinite-dimensional, and the distance between the output and the solution is defined by an integral over the domain.

FINDE: Neural Differential Equations for Finding and Preserving Invariant Quantities

no code implementations1 Oct 2022 Takashi Matsubara, Takaharu Yaguchi

However, these models incorporate the underlying structures, and in most situations where neural networks learn unknown systems, these structures are also unknown.

Cancer Subtyping by Improved Transcriptomic Features Using Vector Quantized Variational Autoencoder

no code implementations20 Jul 2022 Zheng Chen, Ziwei Yang, Lingwei Zhu, Guang Shi, Kun Yue, Takashi Matsubara, Shigehiko Kanaya, MD Altaf-Ul-Amin

As such, existing methods often impose unrealistic assumptions to extract useful features from the data while avoiding overfitting to spurious correlations.

Clustering

Neural Symplectic Form: Learning Hamiltonian Equations on General Coordinate Systems

no code implementations NeurIPS 2021 Yuhan Chen, Takashi Matsubara, Takaharu Yaguchi

In this study, we propose a model that learns the symplectic form from data using neural networks, thereby providing a method for learning Hamiltonian equations from data represented in general coordinate systems, which are not limited to the generalized coordinates and the generalized momenta.

KAM Theory Meets Statistical Learning Theory: Hamiltonian Neural Networks with Non-Zero Training Loss

no code implementations22 Feb 2021 Yuhan Chen, Takashi Matsubara, Takaharu Yaguchi

To apply the KAM theory, we provide a generalization error bound for Hamiltonian neural networks by deriving an estimate of the covering number of the gradient of the multi-layer perceptron, which is the key ingredient of the model.

Learning Theory

Symplectic Adjoint Method for Exact Gradient of Neural ODE with Minimal Memory

1 code implementation NeurIPS 2021 Takashi Matsubara, Yuto Miyatake, Takaharu Yaguchi

The symplectic adjoint method obtains the exact gradient (up to rounding error) with memory proportional to the number of uses plus the network size.

Numerical Integration

ChartPointFlow for Topology-Aware 3D Point Cloud Generation

no code implementations4 Dec 2020 Takumi Kimura, Takashi Matsubara, Kuniaki Uehara

Then, a map conditioned on a label is assigned to a continuous subset of a point cloud, similar to a chart of a manifold.

Point Cloud Generation

Target-Oriented Deformation of Visual-Semantic Embedding Space

1 code implementation15 Oct 2019 Takashi Matsubara

Multimodal embedding is a crucial research topic for cross-modal understanding, data mining, and translation.

Cross-Modal Retrieval Retrieval +1

Generative adversarial network based on chaotic time series

no code implementations24 May 2019 Makoto Naruse, Takashi Matsubara, Nicolas Chauvet, Kazutaka Kanno, Tianyu Yang, Atsushi Uchida

Here we utilize chaotic time series generated experimentally by semiconductor lasers for the latent variables of GAN whereby the inherent nature of chaos can be reflected or transformed into the generated output data.

Generative Adversarial Network Time Series +1

Deep Energy-Based Modeling of Discrete-Time Physics

1 code implementation NeurIPS 2020 Takashi Matsubara, Ai Ishikawa, Takaharu Yaguchi

Physical phenomena in the real world are often described by energy-based modeling theories, such as Hamiltonian mechanics or the Landau theory, which yield various physical laws.

Exploring Uncertainty Measures for Image-Caption Embedding-and-Retrieval Task

no code implementations9 Apr 2019 Kenta Hama, Takashi Matsubara, Kuniaki Uehara, Jianfei Cai

With the wide development of black-box machine learning algorithms, particularly deep neural network (DNN), the practical demand for the reliability assessment is rapidly rising.

General Classification regression +1

Data Augmentation using Random Image Cropping and Patching for Deep CNNs

1 code implementation22 Nov 2018 Ryo Takahashi, Takashi Matsubara, Kuniaki Uehara

We also confirmed that deep CNNs with RICAP achieve better results on classification tasks using CIFAR-100 and ImageNet and an image-caption retrieval task using Microsoft COCO.

Image Augmentation Image Cropping +1

Deep Generative Model using Unregularized Score for Anomaly Detection with Heterogeneous Complexity

no code implementations16 Jul 2018 Takashi Matsubara, Kenta Hama, Ryosuke Tachibana, Kuniaki Uehara

Empirical results demonstrate that the unregularized score is robust to the inherent complexity of samples and can be used to better detect anomalies.

Anomaly Detection

A Novel Weight-Shared Multi-Stage CNN for Scale Robustness

no code implementations12 Feb 2017 Ryo Takahashi, Takashi Matsubara, Kuniaki Uehara

The proposed WSMS-Net is easily combined with existing deep CNNs such as ResNet and DenseNet and enables them to acquire robustness to object scaling.

General Classification Image Classification

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