Ryohei Orihara

According to our database, Ryohei Orihara authored at least 51 papers between 1990 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of five.

2023

Background Image Editing with HyperStyle and Semantic Segmentation.

Syuusuke Ishihata, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 15th International Conference on Agents and Artificial Intelligence, 2023

GAN Inversion with Editable StyleMap.

So Honda, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 15th International Conference on Agents and Artificial Intelligence, 2023

Estimation of Unmasked Face Images Based on Voice and 3DMM.

Tetsumaru Akatsuka, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the AI 2023: Advances in Artificial Intelligence, 2023

2021

Computed tomography image reconstruction using stacked U-Net.

Satoru Mizusawa, Yuichi Sei, Ryohei Orihara, Akihiko Ohsuga

Comput. Medical Imaging Graph., 2021

Classifying COVID-19 Conspiracy Tweets with Word Embedding and BERT.

Yuta Yanagi, Ryohei Orihara, Yasuyuki Tahara, Yuichi Sei, Akihiko Ohsuga

Proceedings of the Working Notes Proceedings of the MediaEval 2021 Workshop, 2021

Acquisition of Cooperative Behavior in a Soccer Task Using Reward Shaping.

Takashi Abe, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the ICIAI 2021: 2021 the 5th International Conference on Innovation in Artificial Intelligence, 2021

2020

Model Smoothing using Virtual Adversarial Training for Speech Emotion Estimation using Spontaneity.

Toyoaki Kuwahara, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 12th International Conference on Agents and Artificial Intelligence, 2020

Hair Shading Style Transfer for Manga with cGAN.

Masashi Aizawa, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 12th International Conference on Agents and Artificial Intelligence, 2020

Generating Cooking Recipes from Cooking Videos Using Deep Learning Considering Previous Process with Video Encoding.

Tatsuki Fujii, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the APPIS 2020: 3rd International Conference on Applications of Intelligent Systems, 2020

2019

"Never fry carrots without chopping" Generating Cooking Recipes from Cooking Videos Using Deep Learning Considering Previous Process.

Tatsuki Fujii, Yuichi Sei, Yasuyuki Tahara, Ryohei Orihara, Akihiko Ohsuga

Int. J. Networked Distributed Comput., 2019

Do You Like Sclera? Sclera-region Detection and Colorization for Anime Character Line Drawings.

Masashi Aizawa, Yuichi Sei, Yasuyuki Tahara, Ryohei Orihara, Akihiko Ohsuga

Int. J. Networked Distributed Comput., 2019

Transforming the Emotion in Speech using a Generative Adversarial Network.

Kenji Yasuda, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 11th International Conference on Agents and Artificial Intelligence, 2019

New Indicator for Centrality Measurements in Passing-network Analysis of Soccer.

Masatoshi Kanbata, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 11th International Conference on Agents and Artificial Intelligence, 2019

Model Smoothing Using Virtual Adversarial Training for Speech Emotion Estimation.

Toyoaki Kuwahara, Yuichi Sei, Yasuyuki Tahara, Ryohei Orihara, Akihiko Ohsuga

Proceedings of the 2019 IEEE International Conference on Big Data, 2019

Multi-task Deep Reinforcement Learning with Evolutionary Algorithm and Policy Gradients Method in 3D Control Tasks.

Shota Imai, Yuichi Sei, Yasuyuki Tahara, Ryohei Orihara, Akihiko Ohsuga

Proceedings of the Big Data, 2019

"Never fry carrots without cutting." Cooking Recipe Generation from Videos Using Deep Learning Considering Previous Process.

Tatsuki Fujii, Yuichi Sei, Yasuyuki Tahara, Ryohei Orihara, Akihiko Ohsuga

Proceedings of the 2019 IEEE International Conference on Big Data, 2019

Do You Like the Sclera?: Sclera-Region Detection in Line Drawings for Automated Colorization.

Masashi Aizawa, Yuichi Sei, Yasuyuki Tahara, Ryohei Orihara, Akihiko Ohsuga

Proceedings of the 2019 IEEE International Conference on Big Data, 2019

2018

Factors Affecting Accuracy in Image Translation based on Generative Adversarial Network.

Fumiya Yamashita, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 10th International Conference on Agents and Artificial Intelligence, 2018

Do Professional Football Players Follow the Optimal Strategies in Penalty Shootout?

Takaya Koizumi, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 10th International Conference on Agents and Artificial Intelligence, 2018

Approximation of Time-Consuming Simulation Based on Generative Adversarial Network.

Ryohei Orihara, Ryota Narasaki, Yuma Yoshinaga, Yasuhiro Morioka, Yoshiyuki Kokojima

Proceedings of the 2018 IEEE 42nd Annual Computer Software and Applications Conference, 2018

2017

Applying Information Extraction for Patent Structure Analysis.

Masayuki Okamoto, Zifei Shan, Ryohei Orihara

Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2017

Sarcasm Detection Method to Improve Review Analysis.

Shota Suzuki, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 9th International Conference on Agents and Artificial Intelligence, 2017

Fast Many-to-One Voice Conversion using Autoencoders.

Yusuke Sekii, Ryohei Orihara, Keisuke Kojima, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 9th International Conference on Agents and Artificial Intelligence, 2017

Text Classification and Transfer Learning Based on Character-Level Deep Convolutional Neural Networks.

Minato Sato, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the Agents and Artificial Intelligence - 9th International Conference, 2017

Japanese Text Classification by Character-level Deep ConvNets and Transfer Learning.

Minato Sato, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 9th International Conference on Agents and Artificial Intelligence, 2017

2015

Activity Recognition for Dogs Based on Time-series Data Analysis.

Tatsuya Kiyohara, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the Agents and Artificial Intelligence - 7th International Conference, 2015

Activity Recognition for Dogs Using Off-the-Shelf Accelerometer.

Tatsuya Kiyohara, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the ICAART 2015, 2015

Towards the Elimination of the Miscommunication Between Users in Twitter - Tweet Classification Based on Expected Responses by User.

Tomoaki Ueda, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the AI 2015: Advances in Artificial Intelligence, 2015

Decision Making Strategy Based on Time Series Data of Voting Behavior.

Shogo Higuchi, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the AI 2015: Advances in Artificial Intelligence, 2015

2014

Identification of Flaming and Its Applications in CGM - Case Studies toward Ultimate Prevention.

Yuki Iwasaki, Ryohei Orihara, Yuichi Sei, Hiroyuki Nakagawa, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the ICAART 2014, 2014

2012

Support for Video Hosting Service Users Using Folksonomy and Social Annotation.

Katsunori Ishino, Ryohei Orihara, Hiroyuki Nakagawa, Yasuyuki Tahara, Akihiko Ohsuga

Proceedings of the 2012 IEEE/WIC/ACM International Conferences on Web Intelligence, 2012

2009

Acquisition of a classification model for a risk search system from unbalanced textual examples.

Shigeaki Sakurai, Ryohei Orihara

Int. J. Bus. Intell. Data Min., 2009

Discovery of Association Rules from Data including Missing Values.

Shigeaki Sakurai, Kouichirou Mori, Ryohei Orihara

Proceedings of the 2009 International Conference on Complex, 2009

Classification of Bloggers Using Social Annotations.

Shigeaki Sakurai, Hideki Tsutsui, Ryohei Orihara

Proceedings of the IEEE 23rd International Conference on Advanced Information Networking and Applications, 2009

2008

Discovery of Sequential Patterns Coinciding with Analysts' Interests.

Shigeaki Sakurai, Youichi Kitahara, Ryohei Orihara, Koichiro Iwata, Nobuyoshi Honda, Toshio Hayashi

J. Comput., 2008

Classification Method Utilizing Reliably Labeled Data.

Kouta Nakata, Shigeaki Sakurai, Ryohei Orihara

Proceedings of the Knowledge-Based Intelligent Information and Engineering Systems, 2008

Classification Model Learning for Bulletin Board Site Analysis Based on Unbalanced Textual Examples.

Shigeaki Sakurai, Ryohei Orihara

Proceedings of the 22nd International Conference on Advanced Information Networking and Applications, 2008

2007

Sequential pattern mining based on a new criteria and attribute constraints.

Shigeaki Sakurai, Youichi Kitahara, Ryohei Orihara

Proceedings of the IEEE International Conference on Systems, 2007

Green behavior generation: A digital approach to reduce consumption.

Hideki Kobayashi, Koji Kimura, Toshimitsu Kumazawa, Ryohei Orihara, Tomoko Murakami, Y. Motomura, Yoichi Nishida

Proceedings of the IEEE International Conference on Systems, 2007

Metrics for Evaluating the Serendipity of Recommendation Lists.

Tomoko Murakami, Koichiro Mori, Ryohei Orihara

Proceedings of the New Frontiers in Artificial Intelligence, 2007

2006

Causal Difference Detection Using Bayesian Networks.

Tomoko Murakami, Ryohei Orihara

Proceedings of the PRICAI 2006: Trends in Artificial Intelligence, 2006

Sequential mining method based on a new criterion.

Shigeaki Sakurai, Youichi Kitahara, Ryohei Orihara

Proceedings of the Artificial Intelligence and Soft Computing, 2006

2005

Analysis of Textual Data with Multiple Classes.

Shigeaki Sakurai, Chong Goh, Ryohei Orihara

Proceedings of the Foundations of Intelligent Systems, 15th International Symposium, 2005

2002

Acquisition of a Knowledge Dictionary from Training Examples Including Multiple Values.

Shigeaki Sakurai, Yumi Ichimura, Akihiro Suyama, Ryohei Orihara

Proceedings of the Foundations of Intelligent Systems, 13th International Symposium, 2002

2001

Inductive Learning of a Knowledge Dictionary for a Text Mining System.

Shigeaki Sakurai, Yumi Ichimura, Akihiro Suyama, Ryohei Orihara

Proceedings of the Engineering of Intelligent Systems, 2001

Information Space Optimization with Real-Coded Genetic Algorithm for Inductive Learing.

Ryohei Orihara, Tomoko Murakami, Naomichi Sueda, Shigeaki Sakurai

Proceedings of the Hybrid Information Systems, 2001

Specification of Kansei Patterns in an Adaptive Perceptual Space.

Tomoko Murakami, Ryohei Orihara, Naomichi Sueda

Proceedings of the AI 2001: Advances in Artificial Intelligence, 2001

2000

Friendly Information Retrieval through Adaptive Restructuring of Information Space.

Tomoko Murakami, Ryohei Orihara

New Gener. Comput., 2000

Friendly Information Retrieval through Adaptive Restructuring of Information Space.

Tomoko Murakami, Ryohei Orihara, Takehiko Yokota

Proceedings of the Intelligent Problem Solving, 2000

1991

Analogical reasoning as a form of hypothetical reasoning and justification-based knowledge acquisition.

Ryohei Orihara

Proceedings of the Algorithmic Learning Theory, 2nd International Workshop, 1991

1990

On Paraphrasing-Based Analogical Reasoning.

Ryohei Orihara, Akihiko Ohsuga, Yoichi Kusui

Proceedings of the Algorithmic Learning Theory, First International Workshop, 1990