Data Warehousing and Data Mining207810 marksNumerical: FP growth frequent patternFinding frequent itemset
How Concept Hierarchy is Used in Extracting Information Concept hierarchy is used in extracting information by: - Organizing data at different levels of abstraction - Enabling generalization and specialization of patterns - Allowing drill-down and roll-up operations for multi-level analysis - Facili
How Concept Hierarchy is Used in Extracting Information
Concept hierarchy is used in extracting information by:
- Organizing data at different levels of abstraction
- Enabling generalization and specialization of patterns
- Allowing drill-down and roll-up operations for multi-level analysis
- Facilitating hierarchical association rule mining
- Supporting semantic understanding of discovered patterns
--- A concept hierarchy is a sequence of mappings from low-level (specific) concepts to higher-level (general) concepts. It organizes data values into levels of abstraction. How it is used in extracting information: 1. Multilevel mining: Patterns/rules can be extracted at several abstraction leve...