AI & LLMs
Jul 21, 20268 min read
RAG Cache Strategies: Semantic Caching with Redis and Sentence Transformers
Avoid repeating $0.03 LLM queries by matching semantically similar user prompts in vector cache before hitting API endpoints.
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AI & LLMs
Jul 20, 20269 min read
Agentic RAG with Router Agents and Dynamic Tool Calling
Moving beyond naive vector lookup: building adaptive multi-agent retrieval routers that decide when to query vector databases vs SQL databases.
AI & LLMs
Jul 19, 20269 min read
Direct Preference Optimization (DPO) vs RLHF: Simplifying Alignment for LLMs
DPO eliminates the need for training separate reward models and complex PPO reinforcement loops by deriving the implicit reward directly from binary preference data.
AI & LLMs
Jul 18, 20268 min read
Prompt Security: Defending Against Indirect Prompt Injection in Production LLM Apps
How malicious instructions hidden inside scraped web pages or user uploaded PDFs can hijack your LLM agent's execution flow.
Data Engineering
Jul 17, 20268 min read
XGBoost vs LightGBM: Benchmarking Tabular Data Processing Speed & Accuracy
Histogram-based decision trees vs depth-wise growth: why LightGBM trains 7x faster on 10M row datasets with equal AUC-ROC scores.
Data Engineering
Jul 16, 20268 min read
MLOps Model Registry Patterns: Tracking Artifacts with MLflow & S3
Automating model lineage, hyperparameter logging, and staging-to-production promotion gates in CI/CD pipelines.