Search Results for author: Naoya Sogi

Found 8 papers, 1 papers with code

Future Predictive Success-or-Failure Classification for Long-Horizon Robotic Tasks

no code implementations4 Apr 2024 Naoya Sogi, Hiroyuki Oyama, Takashi Shibata, Makoto Terao

The key idea behind the proposed method is an end-to-end approach for determining whether the action plan can complete a given task instead of manually redesigning the conditions.

Classification Future prediction

Time-series Anomaly Detection based on Difference Subspace between Signal Subspaces

no code implementations31 Mar 2023 Takumi Kanai, Naoya Sogi, Atsuto Maki, Kazuhiro Fukui

This paper proposes a new method for anomaly detection in time-series data by incorporating the concept of difference subspace into the singular spectrum analysis (SSA).

Anomaly Detection Time Series +1

Adaptive occlusion sensitivity analysis for visually explaining video recognition networks

1 code implementation26 Jul 2022 Tomoki Uchiyama, Naoya Sogi, Satoshi Iizuka, Koichiro Niinuma, Kazuhiro Fukui

The key idea here is to occlude a specific volume of data by a 3D mask in an input 3D temporal-spatial data space and then measure the change degree in the output score.

Decision Making Image Classification +2

Grassmannian learning mutual subspace method for image set recognition

no code implementations8 Nov 2021 Lincon S. Souza, Naoya Sogi, Bernardo B. Gatto, Takumi Kobayashi, Kazuhiro Fukui

The image set is represented by a low-dimensional input subspace; and this input subspace is matched with reference subspaces by a similarity of their canonical angles, an interpretable and easy to compute metric.

Face Identification Facial Emotion Recognition +1

Discriminant analysis based on projection onto generalized difference subspace

no code implementations29 Oct 2019 Kazuhiro Fukui, Naoya Sogi, Takumi Kobayashi, Jing-Hao Xue, Atsuto Maki

To avoid the difficulty, we first introduce geometrical Fisher discriminant analysis (gFDA) based on a simplified Fisher criterion.

Constrained Mutual Convex Cone Method for Image Set Based Recognition

no code implementations14 Mar 2019 Naoya Sogi, Rui Zhu, Jing-Hao Xue, Kazuhiro Fukui

Moreover, to enhance the framework, we introduce a discriminant space that maximizes the between-class variance (gaps) and minimizes the within-class variance of the projected convex cones onto the discriminant space, similar to the Fisher discriminant analysis.

Classification General Classification

A Method Based on Convex Cone Model for Image-Set Classification with CNN Features

no code implementations31 May 2018 Naoya Sogi, Taku Nakayama, Kazuhiro Fukui

In this paper, we propose a method for image-set classification based on convex cone models, focusing on the effectiveness of convolutional neural network (CNN) features as inputs.

Classification General Classification

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