Unsupervised Detection of Microservice Trace Anomalies through Service-Level Deep Bayesian Networks. - Ping Liu; Haowen Xu; Qianyu Ouyang; Rui Jiao; Zhekang Chen; Shenglin Zhang; Jiahai Yang; Linlin Mo; Jice Zeng; Wenman Xue; Dan Pei (ISSRE, 2020)