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Tag: Backend

AI, Development

Contextual retrieval in RAG: fix context loss at ingestion

Traditional RAG chunking strips the context that makes a chunk mean anything. Contextual retrieval fixes that by prepending a one-sentence summary situating each chunk in its parent document, and prompt caching keeps the ingestion cost down.

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AI, Development

Variable discretization: five ways to bin continuous data

Five ways to turn continuous variables into bins: equal width, equal frequency, domain-defined intervals, K-Means, and a shallow decision tree. What each one does to outliers and skew, with the scikit-learn and Pandas code.

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Core Updates, Development, Gutenberg

PHP-only block registration: skip React for simple blocks

WordPress 7.0 lets you register a block entirely in PHP. The autoRegister flag tells the editor to build the inspector controls from your attribute definitions, so a server-rendered block needs no JavaScript. The setup, and the attribute types it skips.

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AI, Development

Hybrid MARL-LP: RL for strategy, LP for hard limits

One agent cannot learn routing, packing and weight limits at once. A hybrid MARL-LP setup gives reinforcement learning the fleet-level strategy and hands the hard constraints to a linear programming solver, which trains faster and generalizes across hubs.

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Core Updates, Development

Why I walked away from enterprise WordPress development

After fourteen years, I moved away from enterprise WordPress maintenance. Four things pushed me out: release cycles measured in weeks, proprietary wrappers that hide core, six-month footer tickets, and a culture that punishes shipping.

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AI, Development

YOLOv3 architecture: Darknet-53, three scales, PyTorch code

A walk through the YOLOv3 architecture: why Darknet-53 drops maxpooling for stride-2 convolutions, how the three detection scales work, and why the class heads use sigmoids instead of softmax. With PyTorch code for both blocks.

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AI, Development

ZeRO memory optimization and PyTorch FSDP, stage by stage

Standard DDP makes every GPU keep a full copy of a 7B model, roughly 112 GB of VRAM. ZeRO shards those states across the cluster instead, PyTorch FSDP implements it, and the price you pay is network bandwidth.

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Design, Development

From a DIY site to a professional WordPress website

Jason Stockill built his son’s racing site himself, then handed it to a design service once it needed a WooCommerce store, a newsletter and a championship history. What changes when a site stops being a brochure.

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Development, E-commerce Development

What the new TDS Author Payment Program tiers pay

TDS reworked its Author Payment Program. Per-view pay now starts at 2,500 views, climbs to $0.10 per view past 7,500, and the monthly cap went from four articles to ten. Here is what that does to a single article’s payout.

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Development

Moving heavy WordPress logic to a FastAPI service

The WordPress REST API holds up fine until you need throughput. Notes on offloading heavy logic to FastAPI: Pydantic models replace hand-written validation, ASGI handles async I/O, and /docs gives you Swagger that matches the code.

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