24 citations · 115 across the 17 of their papers we have counts for
17 papers
Hierarchical entropy and domain interaction to understand the structure in an image
Nao Uehara, Teruaki Hayashi, Yukio Ohsawa
In this study, we devise a model that introduces two hierarchies into information entropy. The two hierarchies are the size of the region for which entropy is calculated and the si…
Data Combination for Problem-solving: A Case of an Open Data Exchange Platform
Teruaki Hayashi, Hiroki Sakaji, Hiroyasu Matsushima +3
In recent years, rather than enclosing data within a single organization, exchanging and combining data from different domains has become an emerging practice. Many studies have di…
Data Requests and Scenarios for Data Design of Unobserved Events in Corona-related Confusion Using TEEDA
Teruaki Hayashi, Nao Uehara, Daisuke Hase +1
Due to the global violence of the novel coronavirus, various industries have been affected and the breakdown between systems has been apparent. To understand and overcome the pheno…
Improving Blockchain scalability based on one-time cross-chain contract and gossip network
Keyang Liu, Yukio Ohsawa
This study proposes a novel solution that provides secure interoperability for blockchains, which improves the overall scalability of the whole blockchain network. In our solution,…
Stay with Your Community: Bridges between Clusters Trigger Expansion of COVID-19
Yukio Ohsawa, Masaharu Tsubokura
The spreading of virus infection is here simulated over artificial human networks. The real-space urban life of people is modeled as a modified scale-free network with constraints.…
Modeling Stakeholder-centric Value Chain of Data to Understand Data Exchange Ecosystem
Teruaki Hayashi, Gensei Ishimura, Yukio Ohsawa
In recent years, the expectation that new businesses and economic value can be created by combining/exchanging data from different fields has risen. However, value creation by data…