no code implementations • 14 Feb 2024 • Yusuke Tanaka, Takaharu Yaguchi, Tomoharu Iwata, Naonori Ueda
The operator learning has received significant attention in recent years, with the aim of learning a mapping between function spaces.
no code implementations • 20 Oct 2023 • Tomoharu Iwata, Yusuke Tanaka, Naonori Ueda
We propose a neural network-based meta-learning method to efficiently solve partial differential equation (PDE) problems.
no code implementations • 2 Jun 2022 • Futoshi Futami, Tomoharu Iwata, Naonori Ueda, Issei Sato, Masashi Sugiyama
Bayesian deep learning plays an important role especially for its ability evaluating epistemic uncertainty (EU).
1 code implementation • NeurIPS 2021 • Masahiro Nakano, Yasuhiro Fujiwara, Akisato Kimura, Takeshi Yamada, Naonori Ueda
Our main contribution is to introduce the notion of permutons into the well-known Chinese restaurant process (CRP) for sequence partitioning: a permuton is a probability measure on $[0, 1]\times [0, 1]$ and can be regarded as a geometric interpretation of the scaling limit of permutations.
no code implementations • NeurIPS 2021 • Futoshi Futami, Tomoharu Iwata, Naonori Ueda, Issei Sato, Masashi Sugiyama
First, we provide a new second-order Jensen inequality, which has the repulsion term based on the loss function.
1 code implementation • NeurIPS 2020 • Masahiro Nakano, Akisato Kimura, Takeshi Yamada, Naonori Ueda
Compared with conventional BNP models for arbitrary RPs, the proposed model is simpler and has a high affinity with Bayesian inference.
no code implementations • ICLR 2020 • Tsuyoshi Okita, Hirotaka Hachiya, Sozo Inoue, Naonori Ueda
The understanding of sensor data has been greatly improved by advanced deep learning methods with big data.
no code implementations • 11 Sep 2019 • Tomoharu Iwata, Machiko Toyoda, Shotaro Tora, Naonori Ueda
We model the anomaly score function by a neural network-based unsupervised anomaly detection method, e. g., autoencoders.
no code implementations • 21 Jun 2019 • Maya Okawa, Tomoharu Iwata, Takeshi Kurashima, Yusuke Tanaka, Hiroyuki Toda, Naonori Ueda
Though many point processes have been proposed to model events in a continuous spatio-temporal space, none of them allow for the consideration of the rich contextual factors that affect event occurrence, such as weather, social activities, geographical characteristics, and traffic.
1 code implementation • NeurIPS 2019 • Takahiro Omi, Naonori Ueda, Kazuyuki Aihara
We herein propose a novel RNN based model in which the time course of the intensity function is represented in a general manner.
no code implementations • 23 Oct 2018 • Tomoharu Iwata, Takuma Otsuka, Hitoshi Shimizu, Hiroshi Sawada, Futoshi Naya, Naonori Ueda
In this paper, we propose a method to learn a function that outputs regulation effects given the current traffic situation as inputs.
no code implementations • 9 Oct 2018 • Tomoharu Iwata, Naonori Ueda
The estimated latent vectors contain hidden structural information of each object in the given relational dataset.
no code implementations • 13 Jun 2018 • Naonori Ueda, Akinori Fujino
In binary classification tasks, accuracy is the most commonly used as a measure of classifier performance.
no code implementations • 8 Feb 2018 • Akisato Kimura, Zoubin Ghahramani, Koh Takeuchi, Tomoharu Iwata, Naonori Ueda
In this paper, we propose a simple but effective method for training neural networks with a limited amount of training data.
no code implementations • 30 Nov 2017 • Akisato Kimura, Ichiro Takahashi, Masaomi Tanaka, Naoki Yasuda, Naonori Ueda, Naoki Yoshida
Our method first builds a convolutional neural network for estimating the luminance of supernovae from telescope images, and then constructs another neural network for the classification, where the estimated luminance and observation dates are used as features for classification.
no code implementations • NeurIPS 2017 • Mathieu Blondel, Vlad Niculae, Takuma Otsuka, Naonori Ueda
On recommendation system tasks, we show how to combine our algorithm with a reduction from ordinal regression to multi-output classification and show that the resulting algorithm outperforms simple baselines in terms of ranking accuracy.
no code implementations • 12 Sep 2016 • Mikio Morii, Shiro Ikeda, Nozomu Tominaga, Masaomi Tanaka, Tomoki Morokuma, katsuhiko Ishiguro, Junji Yamato, Naonori Ueda, Naotaka Suzuki, Naoki Yasuda, Naoki Yoshida
We present an application of machine-learning (ML) techniques to source selection in the optical transient survey data with Hyper Suprime-Cam (HSC) on the Subaru telescope.
Instrumentation and Methods for Astrophysics
no code implementations • 29 Jul 2016 • Mathieu Blondel, Masakazu Ishihata, Akinori Fujino, Naonori Ueda
Polynomial networks and factorization machines are two recently-proposed models that can efficiently use feature interactions in classification and regression tasks.
4 code implementations • NeurIPS 2016 • Mathieu Blondel, Akinori Fujino, Naonori Ueda, Masakazu Ishihata
Factorization machines (FMs) are a supervised learning approach that can use second-order feature combinations even when the data is very high-dimensional.
no code implementations • 16 Sep 2014 • Katsuhiko Ishiguro, Issei Sato, Naonori Ueda
The Infinite Relational Model (IRM) is a probabilistic model for relational data clustering that partitions objects into clusters based on observed relationships.
no code implementations • NeurIPS 2010 • Katsuhiko Ishiguro, Tomoharu Iwata, Naonori Ueda, Joshua B. Tenenbaum
We propose a new probabilistic model for analyzing dynamic evolutions of relational data, such as additions, deletions and split & merge, of relation clusters like communities in social networks.
no code implementations • NeurIPS 2009 • Tomoharu Iwata, Takeshi Yamada, Naonori Ueda
We propose a probabilistic topic model for analyzing and extracting content-related annotations from noisy annotated discrete data such as web pages stored in social bookmarking services.