Knowledge Graphs

  1. Querying and Reasoning
    1. SPARQL Query Language
      1. Query Forms
        1. SELECT Queries
          1. CONSTRUCT Queries
            1. ASK Queries
              1. DESCRIBE Queries
              2. Graph Patterns
                1. Basic Graph Patterns
                  1. Optional Patterns
                    1. Union Patterns
                      1. Filter Expressions
                      2. Advanced Features
                        1. Subqueries
                          1. Aggregation
                            1. Grouping
                              1. Ordering
                              2. Federated Queries
                                1. SERVICE Keyword
                                  1. Distributed Querying
                                2. Cypher Query Language
                                  1. Pattern Matching
                                    1. Node Patterns
                                      1. Relationship Patterns
                                        1. Path Expressions
                                          1. Return Clauses
                                            1. Aggregation Functions
                                            2. Reasoning and Inference
                                              1. RDFS Entailment
                                                1. OWL Reasoning
                                                  1. Classification
                                                    1. Realization
                                                      1. Consistency Checking
                                                      2. Rule-Based Reasoning
                                                        1. Forward Chaining
                                                          1. Backward Chaining
                                                          2. Materialization Strategies
                                                          3. Query Optimization
                                                            1. Cost-Based Optimization
                                                              1. Heuristic Methods
                                                                1. Index Utilization
                                                                  1. Join Ordering
                                                                  2. Validation and Constraints
                                                                    1. SHACL Shapes
                                                                      1. Node Shapes
                                                                        1. Property Shapes
                                                                          1. Constraint Components
                                                                          2. Shape Expressions
                                                                            1. Shape Definitions
                                                                              1. Validation Process

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                                                                          5. Storage and Management Systems

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                                                                          7. Applications and Use Cases