Osamu Uchida
Tokai University
78 Papers
230 Citations
Osamu Uchida is an academic researcher from Tokai University. The author has contributed to research in topics: Social media & Computer science. The author has an hindex of 8, co-authored 76 publications. Previous affiliations of Osamu Uchida include University of Electro-Communications & Kanagawa Institute of Technology.
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Papers
•Proceedings Article
A method for automatically generating the emotional vectors of emoticons using weblog articles
Sho Aoki,Osamu Uchida +1 more
- 08 Mar 2011
TL;DR: This study proposes a method to create emotional vectors of emoticons automatically using the collocation relationship between emotional words and emoticons which is derived from many weblog articles.
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Improvement of Twitter-based disaster-related information sharing system
Masafumi Kosugi,Keisuke Utsu,Sachi Tajima,Makoto Tornita,Yoshitaka Kajita,Yoshiro Yamamoto,Osamu Uchida +6 more
- 01 Dec 2017
TL;DR: This study tries to improve a Twitter-based disaster-related information sharing system which is consisting of two subsystems; DITS (Disaster Information Tweeting System) and DIMS (Disasters Information Mapping System).
28
The optimal overflow and underflow probabilities with variable-length coding for the general source
Osamu Uchida,Te Sun Han +1 more
- 25 Jun 2000
TL;DR: This study shows that the infimum achievable threshold given the overflow probability exponent r always coincides with the inf optimum achievable fixed-length coding rate given the error exponent r, without any assumptions on the source.
28
•Journal Article
The Optimal Overflow and Underflow Probabilities of Variable-Length Coding for the General Source
Osamu Uchida,Te Sun Han +1 more
TL;DR: In this article, it was shown that the infimum achievable threshold given the overflow probability exponent r always coincides with the fixed-length coding rate given the error exponent r, without any assumptions on the source.
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