Osamu Uchida

According to our database, Osamu Uchida authored at least 44 papers between 2000 and 2023.

Collaborative distances:

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

2023

Analysis of Japanese Tweets on the Russian Military Invasion of Ukraine Focusing on Frequently Used Words and Emotional Expressions.

Keisuke Utsu, Misaki Oyama, Osamu Uchida

Proceedings of the Information Technology in Disaster Risk Reduction, 2023

Location Extraction in Disaster Tweets with a Model Trained on Past Data: Diverse Analysis.

Toshihiro Rokuse, Keisuke Utsu, Osamu Uchida

Proceedings of the Information Technology in Disaster Risk Reduction, 2023

2022

Location Mention Recognition from Japanese Disaster-Related Tweets.

Toshihiro Rokuse, Osamu Uchida

Proceedings of the Information Technology in Disaster Risk Reduction, 2022

Extension of the Disaster Information Sharing System DITS & DIMS to a System Available on a Daily Use.

Osamu Uchida, Ryoji Yamaguchi, Kohei Cho

Proceedings of the 5th International Conference on Information and Computer Technologies, 2022

2021

Development and Implementation of an ICT-based Disaster Prevention and Mitigation Education Program for the Young Generation.

Osamu Uchida, Sachi Tajima, Yoshitaka Kajita, Keisuke Utsu, Yuji Murakami, Sanetoshi Yamada

Inf. Syst. Frontiers, 2021

Analysis of Quote Retweets for COVID-19 State of Emergency Related Tweets Posted from Prefectural Governors' Accounts in Japan.

Keisuke Utsu, Natsumi Yagi, Airi Fukushima, Yuma Takemori, Atsushi Okazaki, Osamu Uchida

Proceedings of the Information Technology in Disaster Risk Reduction, 2021

Analysis of Tweets Including a Specific Hashtag Related to Disaster Information in Saku City Posted During 2019 Typhoon Hagibis.

Keisuke Utsu, Naoyoshi Takahashi, Osamu Uchida

Proceedings of the 6th IEEE International Conference on Computer and Communication Systems, 2021

System Design of a Mobile Application to Support Foreigners Staying in Japan at the Time of a Disaster.

Kemachart Kemavuthanon, Osamu Uchida

Proceedings of the 6th IEEE International Conference on Computer and Communication Systems, 2021

2020

Integrated Question-Answering System for Natural Disaster Domains Based on Social Media Messages Posted at the Time of Disaster.

Kemachart Kemavuthanon, Osamu Uchida

Inf., 2020

Analysis of Rescue Request and Damage Report Tweets Posted during 2019 Typhoon Hagibis.

Keisuke Utsu, Osamu Uchida

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2020

Twitter-Based Safety Confirmation System for Disaster Situations.

Keisuke Utsu, Mariko Abe, Shuji Nishikawa, Osamu Uchida

Future Internet, 2020

Visualization of Tweets and Related Images Posted During Disasters.

Sanetoshi Yamada, Keisuke Utsu, Osamu Uchida

Proceedings of the Information Technology in Disaster Risk Reduction, 2020

Effects and Issues of the Disaster Information Tweeting and Mapping System for Residents.

Hiroya Yamada, Yoshitaka Kajita, Sachi Tajima, Keisuke Utsu, Osamu Uchida, Yuji Murakami

Proceedings of the 5th International Conference on Computer and Communication Systems, 2020

Improvement of Disaster Situation Visualization System Using Truck-mounted Camera.

Takuho Matsuo, Masafumi Kosugi, Osamu Uchida

Proceedings of the 5th International Conference on Computer and Communication Systems, 2020

A Proposal on Disaster Information and Rescue Request Sharing Application Using Sina Weibo.

Yang Liu, Osamu Uchida, Keisuke Utsu

Proceedings of the 5th International Conference on Computer and Communication Systems, 2020

Real-Time Disaster Information Providing System for Inducing Risk Perception.

Takuya Kondo, Osamu Uchida

Proceedings of the 5th International Conference on Computer and Communication Systems, 2020

Telegram-Based Chatbot Application for Foreign People in Japan to Share Disaster-Related Information in Real-Time.

Sayed Ehsanullah Ahmady, Osamu Uchida

Proceedings of the 5th International Conference on Computer and Communication Systems, 2020

2019

Town-Watching Workshop Using Disaster Information Tweeting and Mapping System.

Keisuke Utsu, Shun Ueta, Sachi Tajima, Yoshitaka Kajita, Yuji Murakami, Osamu Uchida

Future Internet, 2019

Workshop Program on Disaster Prevention and Mitigation for Young Generation Utilizing Disaster Information Tweeting and Mapping System.

Osamu Uchida, Sachi Tajima, Yoshitaka Kajita, Keisuke Utsu, Yuji Murakami, Sanetoshi Yamada

Proceedings of the Information Technology in Disaster Risk Reduction, 2019

Classification of Social Media Messages Posted at the Time of Disaster.

Kemachart Kemavuthanon, Osamu Uchida

Proceedings of the Information Technology in Disaster Risk Reduction, 2019

Analysis and Visualization of Attention Area of Tweets During Disasters.

Sanetoshi Yamada, Keisuke Utsu, Kohei Cho, Osamu Uchida

Proceedings of the 5th International Conference on Information and Communication Technologies for Disaster Management, 2019

Chatbot Application for Sharing Disaster-information.

Masafumi Kosugi, Osamu Uchida

Proceedings of the 5th International Conference on Information and Communication Technologies for Disaster Management, 2019

Text Analysis of Tweets with Rescue Request Hashtags Posted during 2018 Japan Floods.

Megumi Kondo, Shuji Nishikawa, Osamu Uchida, Keisuke Utsu

Proceedings of the 5th International Conference on Information and Communication Technologies for Disaster Management, 2019

A Twitter-Based Disaster Information Sharing System.

Masafumi Kosugi, Keisuke Utsu, Makoto Tomita, Sachi Tajima, Yoshitaka Kajita, Yoshiro Yamamoto, Osamu Uchida

Proceedings of the IEEE 4th International Conference on Computer and Communication Systems, 2019

An Analysis of Tweets Posted During 2018 Western Japan Heavy Rain Disaster.

Sanetoshi Yamada, Keisuke Utsu, Osamu Uchida

Proceedings of the IEEE International Conference on Big Data and Smart Computing, 2019

2018

An Analysis of Tweets During the 2018 Osaka North Earthquake in Japan -A Brief Report.

Sanetoshi Yamada, Keisuke Utsu, Osamu Uchida

Proceedings of the 5th International Conference on Information and Communication Technologies for Disaster Management, 2018

Time Trend Analysis of "#Rescue" Tweets During and After The 2017 Northern Kyushu Heavy Rain Disaster.

Shuji Nishikawa, Nozomi Tanaka, Keisuke Utsu, Osamu Uchida

Proceedings of the 5th International Conference on Information and Communication Technologies for Disaster Management, 2018

2017

Web application prototype for collecting disaster-related information focusing on tweets immediately after retweeting news posts.

Keisuke Utsu, Ayami Manaka, Koki Nakafuri, Osamu Uchida

Proceedings of the 4th International Conference on Information and Communication Technologies for Disaster Management, 2017

Improvement of Twitter-based disaster-related information sharing system.

Masafumi Kosugi, Keisuke Utsu, Sachi Tajima, Makoto Tomita, Yoshitaka Kajita, Yoshiro Yamamoto, Osamu Uchida

Proceedings of the 4th International Conference on Information and Communication Technologies for Disaster Management, 2017

A smartphone application for location recording and rescue request using twitter.

Yuuto Ohtsuka, Hiroshi Ishii, Keisuke Utsu, Osamu Uchida

Proceedings of the 2017 International Conference on Information Networking, 2017

2016

SWIPASS: Image-Based User Authentication for Touch Screen Devices.

Masafumi Kosugi, Tsuyoshi Suzuki, Osamu Uchida, Hiroaki Kikuchi

J. Inf. Process., 2016

A Real-Time Information Sharing System to Support Self-, Mutual-, and Public-Help in the Aftermath of a Disaster Utilizing Twitter.

Osamu Uchida, Masafumi Kosugi, Gaku Endo, Takamitsu Funayama, Keisuke Utsu, Sachi Tajima, Makoto Tomita, Yoshitaka Kajita, Yoshiro Yamamoto

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016

Identifying Important Tweets by Considering the Potentiality of Neurons.

Ryozo Kitajima, Ryotaro Kamimura, Osamu Uchida, Fujio Toriumi

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016

2015

Neural potential learning for tweets classification and interpretation.

Ryozo Kitajima, Ryotaro Kamimura, Osamu Uchida, Fujio Toriumi

Proceedings of the 7th International Conference of Soft Computing and Pattern Recognition, 2015

Enlighten Information Morals through Corporate Culture.

Abdullah Akmubark, Nobutoshi Hatanaka, Osamu Uchida, Yukiyo Ikeda

Proceedings of the Ninth International Symposium on Human Aspects of Information Security & Assurance, 2015

2009

A Falsification Prevention Method for Face Authentication Using Light.

Yosuke Horiuchi, Osamu Uchida

Proceedings of the Fifth International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2009), 2009

Digital Watermarking Method for Printed Materials Embedding in Hue Component.

Yuta Goto, Osamu Uchida

Proceedings of the Fifth International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2009), 2009

2007

Greedy network-growing algorithm with Minkowski distances.

Ryotaro Kamimura, Osamu Uchida, Seiki Hashimoto

Int. J. Gen. Syst., 2007

2006

Web Content Transducing System for Cellular Phones.

Hiroaki Yoshikawa, Osamu Uchida, Shohachiro Nakanishi

Proceedings of the Advanced International Conference on Telecommunications and International Conference on Internet and Web Applications and Services (AICT/ICIW 2006), 2006

2004

Cost-Sensitive Greedy Network-Growing Algorithm with Gaussian Activation Functions.

Ryotaro Kamimura, Osamu Uchida

Proceedings of the Neural Information Processing, 11th International Conference, 2004

2003

Improving Feature Extraction Performance of Greedy Network-Growing Algorithm.

Ryotaro Kamimura, Osamu Uchida

Proceedings of the Intelligent Data Engineering and Automated Learning, 2003

2001

Flexible feature discovery and structural information control.

Ryotaro Kamimura, Taeko Kamimura, Osamu Uchida

Connect. Sci., 2001

Maximum generating rate of the variable-length nonuniform random number.

Osamu Uchida

Proceedings of the 2001 IEEE Information Theory Workshop, 2001

2000

Source code with cost as a nonuniform random number generator.

Te Sun Han, Osamu Uchida

IEEE Trans. Inf. Theory, 2000