SwedenCountry of destination:
At a regional level, there are many different and interacted farms. How to better understand the infectious diseases (such as BVD) spread in a metapopulation at a regional scale motivated this work. In this project, we establish a multiscale model of BVD spread and control between cattle farms at a regional scale. Herd specific characters are taken into account by using the database describing the cattle life trajectories. Two scales are considered: within and between–herd scales, modelling the dynamic of each herd and the interactions between different herds, respectively. Both within-herd and between-herd models are established according to the information obtained from database. Based on the multiscale model, BVD spread at a regional scale will be studied and analysed. Several control strategies will be tested and optimized. The parameters used in the model will be estimated in terms of distribution. We will develop an analytical model from the multiscale model and also from the estimated parameters.
I got my PhD in applied mathematics in 2014. I am especially focused on establishing complex large scale mathematical models from data, applying data analyses and design control strategies. I have experiences in establishing models with different background such as ecosystem, biological system, epidemiology model, GPS data collected from drivers, Nano particles and mechanism dynamics. Supported by the AgreenSkills+ programme, I did my 2 years postdoctoral research in BioEpAR between 2015 and 2017, where I worked on establishing a large scale complex predictive model from database of French farming systems. This model was focused on simulating the BVDV spread between dairy herds at a regional scale. The developed model could be used to predict the virus spread pattern and test control strategies. My AgreenSkills+ programme finished in August 2017 and I am currently working in pharmaceutical industry as a data scientist.
Luyuan Qi, Elisabeta Vergu, Bhagat Lal Dutta and Pauline Ezanno, 2017. Modelling bovine viral diarrhoea virus spread between dairy cattle farms on a regional scale: relative contribution of two between-herd transmission pathways. Conference SVEPM2017. hal-01604701.
Pham M.L., Parlavantzas N., Morin C., Arnoux S., Qi L., Gontier P., Ezanno P., 2017. DiFFuSE, a Distributed Framework for Cloud-based Epidemic Simulations: a Case Study in Modelling the Spread of Bovine Viral Diarrhea Virus. CloudCom, 304-313. [hal-01586945].
Luyuan Qi, Elisabeta Vergu, Bhagat Lal Dutta, Philippe Gontier and Pauline Ezanno. Presentation ECMTB 2016 - A Multiscale Model of Bovine Viral Diarrhea Virus (BVDV) Spread Between Dairy Cattle Farms at a Regional Scale.
Qi, LY, Hu, XM, 2016. Design of evacuation strategies with crowd density feedback. Science China-Information Sciences. 59, 1, 010204. Doi: 10.1007/s11432-0155508-2.
Luyuan Qi and George Q. Cai, 2014, Nonstationary response of nonlinear oscillators with optimal bounded control and broad-band noises, Probabilistic Engineering Mechanics, 38, 35-41.