3 papers
math.NA2021
Analysis of COVID-19 in Japan with Extended SEIR model and ensemble Kalman filter
Qiwen Sun, Serge Richard, Takemasa Miyoshi
We introduce an extended SEIR infectious disease model with data assimilation for the study of the spread of COVID-19. In this framework, undetected asymptomatic and pre-symptomati…
cs.DL2021
Bibliometric analysis on mathematics, 3 snapshots: 2005, 2010, 2015
Serge Richard, Qiwen Sun
We carry out a thorough bibliometric analysis of recent publications in mathematics based on the database Web of Science. The individual relations between various features and the…
math.HO2019
Analysis on MathSciNet database: some preliminary results
Serge Richard, Qiwen Sun
In this paper we initiate some investigations on MathSciNet database. For many mathematicians this website is used on a regular basis, but surprisingly except for the information p…