We develop a decision support system, based on the data warehousing approach. We define a conceptual object-oriented data warehouse model, which describes the data warehouse as a central repository of relevant, complex and temporal data. Our model integrates three concepts: warehouse object, environment and warehouse class. Each warehouse object representing a source entity, is composed of one ...

This study examines the effects of gender diversity on economic performance within the microfinance industry. We use ROA to capture financial performance and OpEx to capture operating efficiency. We measure gender diversity at two hierarchical levels: gender diversity within the Board represents the decision-making level; gender composition within the rank of loan officers embodies the operatio...

Rule acquisition is one of the main purposes in the analysis of decision formal contexts. Up to now, there have existed several types of rules (e.g., the decision rules and the granular rules) in decision formal contexts. This study firstly proposes a new algorithm with less time complexity for deriving the non-redundant decision rules from a decision formal context. Then, we invesigate decisio...