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- research-articleDecember 2021
Stock market trend detection and automatic decision-making through a network-based classification model
Natural Computing: an international journal (NATC), Volume 20, Issue 4Dec 2021, Pages 791–804https://doi.org/10.1007/s11047-020-09829-9AbstractMany complex systems observed in nature and society can be described in terms of network. A salient feature of networks is the presence of community patterns. Network-based models have already been applied in the analysis of data from very diverse ...
- ArticleNovember 2021
Detecting Early Signs of Insufficiency in COVID-19 Patients from CBC Tests Through a Supervised Learning Approach
AbstractOne important task in the COVID-19 clinical protocol involves the constant monitoring of patients to detect possible signs of insufficiency, which may eventually rapidly progress to hepatic, renal or respiratory failures. Hence, a prompt and ...
- ArticleNovember 2021
Anomaly Detection in Brazilian Federal Government Purchase Cards Through Unsupervised Learning Techniques
AbstractThe Federal Government Purchase Card (CPGF) has been used in Brazil since 2005, allowing agencies and entities of the federal public administration to make purchases of material and provision of services through this method. Although this payment ...
- ArticleOctober 2020
Predicting the Evolution of COVID-19 Cases and Deaths Through a Correlations-Based Temporal Network
AbstractGiven the most recent events involving the fast spreading of COVID-19, policy makers around the world have been challenged with the difficult task of developing efficient strategies to contain the dissemination of the disease among the population, ...
- ArticleOctober 2012
Stock Prices Assessment: Proposal of a New Index Based on Volume Weighted Historical Prices
BWSS '12: Proceedings of the 2012 Third Brazilian Workshop on Social SimulationOctober 2012, Pages 44–51https://doi.org/10.1109/BWSS.2012.23The importance of considering the volumes to analyze stock prices movements can be considered as a well-accepted practice in the financial area. However, when we look at the scientific production in this field, we still cannot find a unified model that ...