* 일시: 04/11(목) 16:30 –
* 연사: 김재경 교수(KAIST)
* 장소: 벤처관 711호
* 제목: Inference of Dynamic Networks in Biological Systems
*초록 :
Biological systems are complex dynamic networks. In this talk, I will introduce GOBI (General Model-based Inference), a simple and scalable method for inferring regulatory networks from time-series data. GOBI can infer gene regulatory networks and ecological networks that cannot be obtained with previous causation detection methods(e.g., Granger, CCM, PCM). I will then introduce Density-PINN (Physics-Informed Neural Network), a method for inferring the shape of the time-delay distribution of interactions in a network. The inferred shape of time-delay distribution can be used to identify the number of pathways that induce a signaling response against antibiotics, which solves the long-standing mystery, the major source of cell-to-cell heterogeneity in response to stress. I will talk how to infer the dynamic information from just network structure information, which can be used to identify the targets (nodes) perturbing the homeostasis of the systems. Finally, I will talk about our scRNA-seq analysis algorithm detecting signal robustly to infer networks among single cells.