COGSPMS

Portfolio management is a decision-making process that aims to minimise risk and maximise return through the proportional allocation of capital into identified financial securities or shares. The initial share evaluation phase involves identifying shares with suitable risk-return characteristics for inclusion in an investment portfolio.

Semantic Bayesian networks are a class of Artificial Intelligence techniques that support explainability in intelligent systems. This research implements and evaluates the INVEST intelligent decision support system and several extensions under various conditions for Johannesburg Stock Exchange-listed share evaluation.

Spatial-temporal graph neural networks are models that process graphically-encoded multivariate data exhibiting both spatial and temporal dependencies. This research also evaluates ST-GNN architectures for Johannesburg Stock Exchange price prediction, and assesses the suitability of a correlation matrix to capture market dependencies and encode structural information.