John Mulaney roasts dumbass Robert F. Kennedy Jr. in SNL monologue: No one likes him

Linear Light Upscaling Is Correct, and It Cost Me 18 Shadow Levels

Every resampling article opens with the same demo: downscale a black-and-white checkerboard in sRGB, get a muddy grey that should have been mid-grey, then do it in linear light and get the right…

• Resampling in linear light preserves high-frequency detail better than sRGB.
• Linear resampling results in worse PSNR compared to sRGB, wasting bits in shadows.
• Quantizing linear intermediate to 8-bit causes banding in dark shadows, reducing quality.

57m ago ·dev.to

Power BI Product KPI Dashboard: Architecture and Design

Product teams often struggle to design analytics interfaces that drive actual decisions rather than acting as static display panels.

58m ago ·dev.to

Cross-validation, and the split that hides a model's failure

Cross-validation is how most models get their score. Six points worked through by hand show how k-fold works, and how the same model scores 0.80 or −0.67 depending only on how the data was split.

• Cross-validation assesses model performance by splitting data into folds.
• Hidden flaw: model scores higher when tested on data it saw during training.
• Group-based cross-validation prevents overfitting to specific data groups.

58m ago ·dev.to

Offline-First, Zero Backend: Building a Tailoring Business App That Works Without Internet

Every tailor I know keeps his whole business in paper registers. One notebook for measurements. Another one for orders. Payments live in a third place, which is mostly his memory.

• TailorVexa is an offline-first app for tailoring businesses, replacing paper registers.
• No internet required due to inconsistent connectivity and high mobile data costs in target markets.
• Local storage and security features like PIN and biometric lock ensure fast, secure operation.

56m ago ·dev.to