mljourney 
Handwritten test cases give false confidence. Building an eval dataset from production logs — with stratified sampling, proper labeling, and slice-based reporting — produces evaluations that actually catch regressions before they reach users.
MLflow, W&B, and Neptune all track experiments but optimize for different teams and workflows. A practical comparison across UI quality, self-hosting, hyperparameter optimization, and pricing — with a clear decision framework.
CUDA out of memory errors are almost always solvable without buying more hardware. A practical checklist of GPU memory reduction techniques — gradient checkpointing, 8-bit Adam, LoRA, Flash Attention, and more — in the order to try them.
LoRA, QLoRA, and full fine-tuning each solve the adaptation problem differently. A practical breakdown of memory costs, quality trade-offs, and when each approach is actually the right choice for your hardware and task.
DDP, FSDP, and DeepSpeed ZeRO all distribute training across GPUs but solve different problems. A practical breakdown of when to use each, with memory calculations and a clear decision framework for 7B to 70B model training.
torch.compile delivers 20–50% inference speedup with a single line of code. A practical guide to compilation modes, handling dynamic shapes, combining with Flash Attention and quantization, and knowing when not to use it.
A practical comparison of vLLM, HuggingFace TGI, and NVIDIA Triton Inference Server for production LLM deployment — covering throughput, latency, quantization support, multi-GPU serving, and when to use each.
Real-time machine learning inference has become a critical capability for modern applications, from fraud detection systems that evaluate transactions in milliseconds to recommendation engines that personalize content as users browse. While many organizations understand the value of real-time predictions, building a production-grade architecture that handles high throughput, maintains low latency, and scales elastically remains challenging. … Read more
The food industry faces an unprecedented challenge: customer dietary preferences no longer remain static throughout a lifetime or even a year. A customer who regularly ordered meat-heavy meals might suddenly shift to plant-based options. Another who avoided gluten for years might reintroduce it gradually. These transitions aren’t random—they follow patterns influenced by health diagnoses, life … Read more
Gradient boosting has become the go-to algorithm for structured data problems, dominating Kaggle competitions and powering production systems at companies like Airbnb, Uber, and Netflix. Yet despite its ubiquity, many practitioners treat it as a black box—tuning hyperparameters without understanding what’s happening under the hood. This knowledge gap prevents effective debugging, thoughtful feature engineering, and … Read more
