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Few-shot Learning for Unsupervised Feature Selection


Jul 02, 2021
Atsutoshi Kumagai, Tomoharu Iwata, Yasuhiro Fujiwara

* 20 pages 

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Meta-Learning for Relative Density-Ratio Estimation


Jul 02, 2021
Atsutoshi Kumagai, Tomoharu Iwata, Yasuhiro Fujiwara

* 17 pages 

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Meta-learning for Matrix Factorization without Shared Rows or Columns


Jun 29, 2021
Tomoharu Iwata


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Loss function based second-order Jensen inequality and its application to particle variational inference


Jun 10, 2021
Futoshi Futami, Tomoharu Iwata, Naonori Ueda, Issei Sato, Masashi Sugiyama


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Dynamic Hawkes Processes for Discovering Time-evolving Communities' States behind Diffusion Processes


Jun 06, 2021
Maya Okawa, Tomoharu Iwata, Yusuke Tanaka, Hiroyuki Toda, Takeshi Kurashima, Hisashi Kashima

* 11 pages, Proceedings of the 27th ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD '21) 

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Few-shot Learning for Topic Modeling


Apr 19, 2021
Tomoharu Iwata


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Meta-learning representations for clustering with infinite Gaussian mixture models


Mar 01, 2021
Tomoharu Iwata


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Meta-learning One-class Classifiers with Eigenvalue Solvers for Supervised Anomaly Detection


Mar 01, 2021
Tomoharu Iwata, Atsutoshi Kumagai


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Meta-Learning for Koopman Spectral Analysis with Short Time-series


Feb 09, 2021
Tomoharu Iwata, Yoshinobu Kawahara


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Adversarial Training Makes Weight Loss Landscape Sharper in Logistic Regression


Feb 05, 2021
Masanori Yamada, Sekitoshi Kanai, Tomoharu Iwata, Tomokatsu Takahashi, Yuki Yamanaka, Hiroshi Takahashi, Atsutoshi Kumagai

* 9 pages, 5 figures 

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Neural Dynamic Mode Decomposition for End-to-End Modeling of Nonlinear Dynamics


Dec 11, 2020
Tomoharu Iwata, Yoshinobu Kawahara


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Learning Contextualised Cross-lingual Word Embeddings for Extremely Low-Resource Languages Using Parallel Corpora


Oct 27, 2020
Takashi Wada, Tomoharu Iwata, Yuji Matsumoto, Timothy Baldwin, Jey Han Lau

* 9 pages 

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Meta-Active Learning for Node Response Prediction in Graphs


Oct 12, 2020
Tomoharu Iwata


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Few-shot Learning for Spatial Regression


Oct 09, 2020
Tomoharu Iwata, Yusuke Tanaka


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Few-shot Learning for Time-series Forecasting


Sep 30, 2020
Tomoharu Iwata, Atsutoshi Kumagai


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Gaussian Process Regression with Local Explanation


Jul 03, 2020
Yuya Yoshikawa, Tomoharu Iwata


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Probabilistic Optimal Transport based on Collective Graphical Models


Jun 16, 2020
Yasunori Akagi, Yusuke Tanaka, Tomoharu Iwata, Takeshi Kurashima, Hiroyuki Toda


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Neural Generators of Sparse Local Linear Models for Achieving both Accuracy and Interpretability


Mar 13, 2020
Yuya Yoshikawa, Tomoharu Iwata

* 11 pages 

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Semi-supervised Anomaly Detection on Attributed Graphs


Feb 27, 2020
Atsutoshi Kumagai, Tomoharu Iwata, Yasuhiro Fujiwara

* 10 pages 

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Efficient Transfer Bayesian Optimization with Auxiliary Information


Sep 17, 2019
Tomoharu Iwata, Takuma Otsuka


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Anomaly Detection with Inexact Labels


Sep 11, 2019
Tomoharu Iwata, Machiko Toyoda, Shotaro Tora, Naonori Ueda


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Spatially Aggregated Gaussian Processes with Multivariate Areal Outputs


Jul 19, 2019
Yusuke Tanaka, Toshiyuki Tanaka, Tomoharu Iwata, Takeshi Kurashima, Maya Okawa, Yasunori Akagi, Hiroyuki Toda


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Deep Mixture Point Processes: Spatio-temporal Event Prediction with Rich Contextual Information


Jun 21, 2019
Maya Okawa, Tomoharu Iwata, Takeshi Kurashima, Yusuke Tanaka, Hiroyuki Toda, Naonori Ueda

* KDD 19 

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Supervised Anomaly Detection based on Deep Autoregressive Density Estimators


Apr 12, 2019
Tomoharu Iwata, Yuki Yamanaka


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Autoencoding Binary Classifiers for Supervised Anomaly Detection


Mar 26, 2019
Yuki Yamanaka, Tomoharu Iwata, Hiroshi Takahashi, Masanori Yamada, Sekitoshi Kanai


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Unsupervised Object Matching for Relational Data


Oct 24, 2018
Tomoharu Iwata, Naonori Ueda


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Finding Appropriate Traffic Regulations via Graph Convolutional Networks


Oct 23, 2018
Tomoharu Iwata, Takuma Otsuka, Hitoshi Shimizu, Hiroshi Sawada, Futoshi Naya, Naonori Ueda


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Refining Coarse-grained Spatial Data using Auxiliary Spatial Data Sets with Various Granularities


Sep 21, 2018
Yusuke Tanaka, Tomoharu Iwata, Toshiyuki Tanaka, Takeshi Kurashima, Maya Okawa, Hiroyuki Toda


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