Search Engines

  1. Search Engine Architecture and Infrastructure
    1. Distributed Systems Design
      1. Scalability Requirements
        1. Horizontal Scaling
          1. Vertical Scaling
            1. Elastic Scaling
            2. Load Balancing
              1. Request Distribution
                1. Geographic Load Balancing
                  1. Failover Mechanisms
                  2. Fault Tolerance
                    1. Redundancy Strategies
                      1. Data Replication
                        1. Disaster Recovery
                        2. Data Partitioning
                          1. Sharding Strategies
                            1. Consistent Hashing
                              1. Partition Tolerance
                            2. Data Centers and Hardware
                              1. Global Distribution
                                1. Edge Locations
                                  1. Content Delivery Networks
                                    1. Latency Reduction
                                    2. Custom Hardware
                                      1. Specialized Servers
                                        1. Storage Solutions
                                          1. Network Infrastructure
                                          2. Energy Efficiency
                                            1. Power Usage Effectiveness
                                              1. Cooling Systems
                                                1. Renewable Energy
                                              2. Caching Strategies
                                                1. Multi-tier Caching
                                                  1. Edge Caching
                                                    1. In-memory Caching
                                                      1. Disk-based Caching
                                                      2. Result Caching
                                                        1. Query Result Storage
                                                          1. Cache Hit Rates
                                                            1. Cache Invalidation
                                                            2. Index Caching
                                                              1. Hot Data Identification
                                                                1. Cache Warming
                                                                  1. Memory Management
                                                                2. Performance Optimization
                                                                  1. Query Response Time
                                                                    1. Latency Targets
                                                                      1. Performance Monitoring
                                                                      2. Throughput Optimization
                                                                        1. Concurrent Query Processing
                                                                          1. Resource Utilization
                                                                          2. System Monitoring
                                                                            1. Health Checks
                                                                              1. Performance Metrics
                                                                                1. Alerting Systems

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                                                                            5. Ranking Algorithms

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                                                                            7. Search User Interface and Experience