Survival analysis in Python for customer churn and LTV
Churn is not a yes or no question, it is a question of when. This covers censored data, Kaplan-Meier curves, and Cox hazard ratios in Python with the lifelines library.
Tag: Backend
How orthogonal distance fitting shrinks SVG paths
Matplotlib draws a smooth curve as hundreds of straight segments. Orthogonal distance fitting fits Bezier curves to the same function instead, so a chart that shipped as 250+ segments comes out as two.
Pandas method chaining instead of intermediate variables
Most Pandas code I inherit is a trail of df_filtered, df_2 and final_df_v2. Method chaining with assign() and pipe() turns that into one pipeline you can read from top to bottom.
Why your GPU sits idle while the CPU pins at 100%
A GPU at 10% while every CPU core is pinned at 100% is a data loading problem, not a hardware problem. What I change first in a PyTorch pipeline: DataLoader workers, pin_memory, mixed precision and torch.compile.
Voxtral voice cloning with the encoder weights missing
Mistral released Voxtral-4B-TTS with the encoder truncated, so there is no way to feed it a new voice. The way around it is gradient descent plus a straight-through estimator, optimizing the audio codes directly against an 8-second clip.
How to pick headless WordPress hosting in 2026
Most sites do not need to go headless. This walks through when the architecture is worth it, how your rendering choice (SSG, SSR or ISR) changes the hosting you need, and what to check on the WordPress backend before you commit.
Why managed hosting wins for complex WordPress websites
Calvin Ho’s Taipei agency builds Web3 and CRM integrations on WordPress.com instead of a self-managed VPS. What that choice buys them, the transient-cached API pattern behind it, and what self-hosting really costs in dev hours.
Compiling programs into transformers instead of training them
Sean Moran’s work wires transformer weights analytically instead of training them: the residual stream becomes working memory and attention becomes a lookup. What that means when you need an exact computation instead of a probable answer.
AI agent architecture: why LLM wrappers are dying off
One LLM cannot draft emails, read documents and optimize a sales pipeline well. A look at splitting the work across reasoning, orchestration and execution layers, with TD learning doing the sequential decisions.
WordPress.com changelog: a Telegram bot and wider Studio Sync
WordPress.com shipped an alpha Telegram bot for managing a site from your phone, opened Studio Sync to Personal and Premium plans, and split MCP read and write tool access per site.