SocialDTN: a DTN implementation for digital and social inclusion. - Waldir Moreira; Ronedo Ferreira; Douglas Cirqueira; Paulo Mendes 001; Eduardo Cerqueira (LCDNet@MobiCom, 2013)

Performance Evaluation of Sentiment Analysis Methods for Brazilian Portuguese. - Douglas Cirqueira; Antônio Fernando Lavareda Jacob Jr.; Fábio Manoel França Lobato; Ádamo Lima de Santana; Márcia Pinheiro (BIS (Workshops), 2016)

Improving relationship management in universities with sentiment analysis and topic modeling of social media channels: learnings from UFPA. - Douglas Cirqueira; Márcia Pinheiro; Thaís Braga; Antônio Fernando Lavareda Jacob Jr.; Olaf Reinhold; Rainer Alt; Ádamo L. de Santana (WI, 2017)

A Literature Review in Preprocessing for Sentiment Analysis for Brazilian Portuguese Social Media. - Douglas Cirqueira; Márcia Fontes Pinheiro; Antônio Fernando Lavareda Jacob Jr.; Fábio Manoel França Lobato; Ádamo L. de Santana (WI, 2018)

Towards Preprocessing Guidelines for Neural Network Embedding of Customer Behavior in Digital Retail. - Douglas Cirqueira; Markus Helfert; Marija Bezbradica (ISCSIC, 2019)

Customer Purchase Behavior Prediction in E-commerce: A Conceptual Framework and Research Agenda. - Douglas Cirqueira; Markus Hofer; Dietmar Nedbal; Markus Helfert; Marija Bezbradica (NFMCP@PKDD/ECML, 2019)

Scenario-Based Requirements Elicitation for User-Centric Explainable AI - A Case in Fraud Detection. - Douglas Cirqueira; Dietmar Nedbal; Markus Helfert; Marija Bezbradica (CD-MAKE, 2020)

Explainable Sentiment Analysis Application for Social Media Crisis Management in Retail. - Douglas Cirqueira; Fernando Almeida do Carmo; Gültekin Cakir; Antônio F. L. Jacob Junior; Fábio M. F. Lobato; Marija Bezbradica; Markus Helfert (CHIRA, 2020)

Who Wants to Use an Augmented Reality Shopping Assistant Application? - Daniel Alejandro Mora Hernandez; Robert Zimmermann; Douglas Cirqueira; Marija Bezbradica; Markus Helfert; Andreas Auinger; Dirk Werth (CHIRA, 2020)

Towards Design Principles for User-Centric Explainable AI in Fraud Detection. - Douglas Cirqueira; Markus Helfert; Marija Bezbradica (HCI (36), 2021)