Advanced RAG

Hybrid Retrieval Fundamentals

BM25-Dense Fusion Strategies

• Keyword and semantic search combination

• Reciprocal rank fusion algorithms

• Weighted scoring approaches

• Query-dependent weight adjustment

• Performance benchmarking methods

Late-Interaction Retriever

• ColBERT architecture and benefits

• PLAID for efficient retrieval

• Token-level matching strategies

• Balance between storage and computation

• Application considerations

Neural Reranking Pipeline

Cross-Encoder Reranking

• Bi-encoders architecture comparison

• Multi-stage reranking cascades

• Computational cost optimization

• Domain-specific fine-tuning

• Batch processing strategies

LLM-Based Rerankers

• Prompt engineering for reranking

• List-based and pair-based ranking comparison

• Cost-latency trade-off

• Consistency and reliability

• Integration patterns

RAG and Long-Context Routing

Adaptive Routing Strategies

• Query complexity assessment

• Cost-accuracy optimization

• Dynamic threshold determination

• Fallback mechanisms

• Performance monitoring

Context Window Management

• Token budget allocation

• Context compression techniques

• Chunking for long contexts

• Hybrid RAG-context approaches

• Model selection criteria

Self-RAG Architecture

Retrieval Necessity Gates

• Query classification for retrieval necessity

• Confidence scoring mechanisms

• Dynamic retrieval triggers

• Cost optimization through selective retrieval

• Performance impact analysis

Verification and Improvement

• Relevance evaluation loops

• Support verification mechanisms

• Critique generation strategies

• Iterative improvement loops

• Quality threshold management

Corrective RAG Patterns

Answer Verification Pipeline

• Factual consistency check

• Contradiction detection systems

• Source attribution verification

• Trust calibration

• Automatic correction strategies

Conflict Resolution

• Multi-source conflict management

• Temporal conflict resolution

• Authority weighting systems

• Consensus building strategies

• User preference integration

Multi-Agent Orchestration

Mixture-of-Agents Design

• Agent specialization patterns

• Workflow orchestration frameworks

• Communication protocols

• Result fusion methods

• Error management and recovery

Cost and Performance Balance

• Agent selection strategies

• Parallel and sequential execution comparison

• Resource allocation optimization

• Latency management

• Decisions between quality and speed

GraphRAG Application

Entity Graph Creation

• Entity and relationship extraction

• Graph schema design

• Community detection algorithms

• Hierarchical summarization

• Scalability considerations

Graph-Enhanced Retrieval

• Local and global retrieval strategies

• Multi-hop reasoning patterns

• Path ranking algorithms

• Subgraph extraction

• Query-driven traversal

Hybrid Graph-Vector Systems

Integration Strategies

• Semantic and structural search fusion

• Entity linking pipelines

• Knowledge graph embeddings

• Cross-modal retrieval

• Result fusion techniques

Temporal Knowledge Graphs

• Time-aware relationships

• Event sequence modeling

• Temporal consistency checking

• Version-aware retrieval

• Historical analysis patterns

Layout-Aware Document Processing

Understanding Structured Documents

• Table extraction and parsing

• Graph and figure analysis

• Form field mapping

• Multi-column layout management

• Document hierarchy preservation

Multimodal RAG Integration

• Vision-language model integration

• OCR and text extraction pipeline

• Image-text alignment

• Cross-modal search strategies

• Quality assurance for extracted content

RAG Fundamentals with SQL

Schema Context Management

• Database schema embedding strategies

• Indexing table and column descriptions

• Relationship graph representation

• Schema versioning and updates

• Multi-database coordination

SQL Generation Pipeline

• Few-shot example selection

• Schema-aware prompt templates

• Query validation and sanitization

• Execution safety checks

• Error recovery mechanisms

• SQL Integration

Integration Patterns

• SQL results as retrieval context

• Document filtering with SQL predicates

• Joining operations between sources

• Transaction boundaries

• Cache coherence

Advanced Query Extension

HyDE and Query Generation

• Hypothetical document embeddings

• Multiple query variations

• Query decomposition strategies

• Techniques for preserving query intent

• Performance impact analysis

Query Rewriting Strategies

• Context-aware rewriting

• Synonym expansion

• Domain-specific terminology mapping

• Ambiguity resolution

• User preference learning

• Router Engines

ML-Based Routing

• Classification model architectures

• Feature engineering for routing

• Online learning strategies

• A/B testing framework

• Performance monitoring

Rule Engine Integration

• Definition of business rules

• Priority and precedence management

• Dynamic rule updates

• Conflict resolution

• Audit and compliance

• Intent Classification

Query Understanding Models

• Intent classification design

• Multi-label classification

• Confidence scoring

• Fallback management

• Continuous improvement cycles

Time-Sensitive Indexing

Temporal Partitioning Strategies

• Time-based sharding

• Rolling window indexes

• Event-driven partitioning

• Archive management

• Query routing based on time range

Freshness Scoring

• Time-dependent decay functions

• Novelty and relevance balance

• Dynamic weight adjustment

• User preference modeling

• A/B testing freshness factors

• Streaming Updates

Real-Time Ingestion Pipelines

• Change data capture integration

• Incremental embedding generation

• Hot-swappable indexing strategies

• Consistency guarantees

• Backpressure management

Cache Invalidation Patterns

• Event-driven invalidation

• TTL strategies

• Selective cache warming

• Distributed cache consistency

• Performance monitoring

GPU-Accelerated Search

Vector Index Optimization

• HNSW and IVF-PQ selection

• GPU memory management

• Batch processing optimization

• Scaling with multiple GPUs

• Cost-performance analysis

Hardware Selection

• Balance between GPU and CPU

• Memory requirements

• Networking considerations

• Storage optimization

• Cloud and on-premise decisions

• Caching Infrastructure

Multi-Level Cache Design

• Semantic cache implementation

• Prompt and context caching

• Cache invalidation strategies

• Distributed cache patterns

• Hit rate optimization

Cache Economics

• Cost-benefit analysis

• Balance between storage and computation

• Cache sizing strategies

• Eviction policies

• Monitoring and alerting

Efficient Model Serving

Inference Optimization

• vLLM integration patterns

• TensorRT-LLM optimization

• Quantization strategies

• Batching and scheduling

• Resource allocation

Load Balancing

• Request distribution strategies

• Health checking

• Circuit breakers

• Rate limiting

• Auto-scaling strategies

Advanced Evaluation Metrics

Citation Fidelity Verification

• Source attribution accuracy

• Citation extraction verification

• Context preservation check

• Hallucination detection

• Consistency scoring

Beyond RAGAS Metrics

• Custom evaluation frameworks

• Domain-specific metrics

• Human evaluation integration

• Automated quality gates

• Regression testing

• Production Monitoring

RAG-Specific Observability

• Retrieval quality metrics

• Embedding drift detection

• Query pattern analysis

• Cost tracking systems

• Performance regression alerts

Drift Detection Systems

• Distribution monitoring

• Concept drift detection

• Model performance tracking

• Automatic retraining triggers

• Alert thresholds

• A/B Test Framework

Experiment Infrastructure

• Online evaluation setup

• Statistical significance testing

• Feature flag management

• Gradual rollout strategies

• Results analysis pipeline

Decision Making

• Metric interpretation

• Trade-off analysis

• Rollback criteria

• Documentation practices

• Stakeholder communication

Prompt Injection Defense

Attack Vector Mitigation

• Preventing direct injection

• Indirect injection via documents

• Input sanitization strategies

• Output validation framework

• Detection and logging systems

Defense in Depth

• Layered security approach

• Isolation strategies

• Privilege separation

• Security monitoring

• Incident response planning

• OWASP LLM Top 10

Security Implementation

• Threat modeling for RAG

• Preventing data poisoning

• Model denial-of-service (DoS) protection

• Information disclosure controls

• Supply chain security

Vulnerability Management

• Security scanning

• Dependency management

• Patch management

• Security testing

• Compliance reporting

Creating Enterprise-Ready RAG

Core System Application

• Hybrid retrieval setup with reordering

• Self-healing RAG configuration

• GraphRAG pipeline construction

• Router engine development

• Security hardening exercises

Integration Challenges

• API design and versioning

• Error management patterns

• Retry strategies

• Circuit breaker implementation

• Monitoring integration