FSDP: Fully Sharded Data Parallel Training at Scale
Explains how FSDP shards model parameters, gradients, and optimizer states across GPUs to train billion-parameter models.
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Explains how FSDP shards model parameters, gradients, and optimizer states across GPUs to train billion-parameter models.
Explains how ZeRO eliminates memory redundancy in distributed training by partitioning optimizer states, gradients, and parameters.
Covers RAG system design by exploring retriever-generator interactions, timing strategies like iterative retrieval, and architectural variations like RETRO.
Explains why LLMs need Retrieval-Augmented Generation. Explains how RAG bridges knowledge gaps, reduces hallucinations, and enables non-parametric memory.
Explains how pipeline parallelism splits deep models across devices, manages bubble overhead with micro-batching, and compares GPipe vs 1F1B schedules.
Covers extractive and abstractive summarization, from TextRank and MMR to BART and LLMs, with ROUGE and BERTScore evaluation techniques.
Explains how tensor parallelism splits weight matrices across GPUs using column and row strategies, enabling training of models too large for any single device.
Covers LLM inference serving architecture, token-aware load balancing, and auto-scaling. Optimize time-to-first-token and throughput for production systems.
Explains how continuous batching achieves 2-3x throughput gains in LLM inference through iteration-level scheduling, eliminating static batch inefficiencies.
Covers the mathematical framework for speculative decoding, including the exact acceptance criterion, rejection sampling logic.
Explains how activation patching locates where information flows in transformers through causal tracing, path patching, and component attribution experiments.
Explains how DDP trains large models across multiple GPUs using ring all-reduce gradient synchronization, gradient bucketing.
Speculative decoding uses a smaller draft model to propose tokens that a larger model verifies in parallel, reducing latency without changing output quality.
Explains how GPU memory breaks down into parameters, gradients, optimizer states, and activations. Estimate memory requirements and debug out-of-memory errors.
Covers GGUF format for storing quantized LLMs. Topics include file structure, quantization types, llama.cpp integration.
Explains how language models power creative writing, poetry generation, storytelling, and the ethical questions of authorship and originality in generative AI.
Covers GPU memory hierarchy, CUDA cores, Tensor Core throughput, and how to read GPU specs to optimize training workloads and debug performance bottlenecks.
Explains how Activation-aware Weight Quantization protects salient weights to compress LLMs. Topics include the algorithm, scaling factors.
Explains how adversarial prompts bypass LLM safety training, covering roleplay attacks, GCG gradient-based suffixes, PAIR automation.
Interpret sparse autoencoder features through activation patterns, automated naming, monosemanticity measurement, and causal feature circuit analysis.
Explains how GPTQ optimizes weight quantization using Hessian-based error compensation to compress LLMs to 4 bits while maintaining near-FP16 accuracy.
Explains how LLMs are trained on synthetic data, from Self-Instruct and Evol-Instruct to quality verification, diversity control, and knowledge distillation.
Covers INT4 quantization techniques for LLMs. Topics include group-wise quantization, NF4 format, double quantization.
Construct effective pretraining data recipes by setting domain proportions, applying quality weighting, running proxy experiments.
Covers INT8 weight quantization with absmax and smooth quantization techniques. Solve the outlier problem in large language models.
Detect and remove personal information from LLM training data with regex, named entity recognition, and hybrid privacy pipelines.
Explains how toxicity classifiers work, how to calibrate thresholds for pretraining data.
Filter low-quality text from web corpora using heuristic rules, perplexity scoring, and classifier-based methods with tunable thresholds.
Explains how weight quantization maps floating-point values to integers, reducing LLM memory by 4x. Topics include scale, zero-point.
Explains how MinHash compresses documents into compact signatures that estimate Jaccard similarity, enabling near-duplicate detection.
Explains how language identification works in NLP pipelines. Topics include n-gram models, FastText LID, code-switching, confidence thresholds.
Extract clean text from HTML and PDFs for LLM training data. Topics include boilerplate removal, text density algorithms, Trafilatura.
Covers KV cache compression techniques including eviction strategies, attention sinks, the H2O algorithm, and INT8 quantization for efficient LLM inference.
Explains how web crawlers discover and download internet content at scale, covering Common Crawl architecture, robots.txt compliance, politeness policies.
Benchmark scores can mislead when test data leaks, metrics saturate, or systems game proxies. Covers contamination, brittleness, Goodhart's Law, and mitigation.
Explains how PagedAttention uses virtual memory paging to eliminate KV cache fragmentation, enabling 5x better memory utilization in LLM serving systems.
Build rigorous NLP benchmarks: task definition, dataset collection, annotation guidelines, inter-annotator agreement, contamination detection.
Calculate KV cache memory requirements for transformer models. Topics include batch size, context length, GQA optimization, and GPU deployment planning.
Explains how KV cache eliminates redundant attention computations in transformers. Topics include memory requirements, cache structure.
Explains how multimodal AI powers document understanding, medical imaging diagnostics, video analysis, and complex reasoning tasks across real-world domains.
Covers iterative alignment for LLMs with online DPO, rolling references, Constitutional AI, and SPIN. Build self-improving models beyond single-shot training.
Covers diffusion models from the DDPM objective to latent diffusion, classifier-free guidance, image editing techniques, ControlNet, and FID evaluation metrics.
Covers RLAIF and Constitutional AI for scalable model alignment. Use AI feedback, design constitutions, and train reward models effectively.
Covers four core image understanding tasks: visual question answering, image captioning, visual grounding, and scene understanding.
Why attention weights fail as explanations, how manipulation studies expose their limits, and what gradient-based methods offer as more faithful alternatives.
Multimodal models align text, images, and other inputs in shared embedding spaces. Covers contrastive loss, dual encoders, joint encoders, and tradeoffs.
Build safe autonomous agents using action constraints, sandboxing, real-time monitoring, prompt injection defenses, and human-in-the-loop intervention patterns.
Explains how multi-agent AI systems coordinate through topologies, communication protocols, role assignment.
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