GW Telecon - Guojian Wang

Prof. Xi-Long Fan invites you to participate in the Tencent meeting

Speaker: Guojian Wang

Estimating Cosmological Parameters with Artificial Neural Networks

whu-gw Group Meeting - Guojian Wang Seminar

Meeting time: 2020/7/17 10:00-12:00 (CST)

Click the link to join the meeting, or add to the meeting list: https://meeting.tencent.com/s/i2S5YlskfaNm

Conference ID: 823 529 933

Dial according to your location
+8675536550000 (Mainland China) +85230018898 (Hong Kong, China)

Abstract

In recent years, machine learning (ML) technology has been widely used in many fields such as astronomy and cosmology. In this talk, I will briefly review the applications of ML in cosmology and introduce our recent applications of ML in cosmology. Specifically, we propose that artificial neural network (ANN) can be used to estimate cosmological parameters and a code called ECoPANN (Estimating Cosmological Parameters with ANN) is developed to achieve parameter inference. This method can obtain the same results as the Markov chain Monte Carlo method, and may provide an alternative way to accurate and fast estimate cosmological parameters for large samples of data, which is beneficial to the research of cosmology and even other broader scientific fields.

Bio

Wang Guojian, PhD in astrophysics, graduated with a doctorate degree from the Astronomy Department of Beijing Normal University in June 2020.

You’re welcome to participate this Friday morning!