NUNES, Breno; 						COLLIRI, Tiago; 						LAURETTO, Marcelo; 						LIU, Weiguang; 						ZHAO, Liang.
Anomaly Detection in Brazilian Federal Government Purchase Cards Through Unsupervised Learning Techniques. <em>In</em>: BRAZILIAN CONFERENCE ON INTELLIGENT SYSTEMS (BRACIS), 10.	, 2021, Online.
	 
	<strong>Anais</strong> [...].
 Porto Alegre: Sociedade Brasileira de Computação, 
	2021
.
 
			ISSN 2643-6264.