MMin SiThu5h ago · 6 min readWhat Is Data Science? Turning Business Numbers Into DecisionsTo put it simply, data science is the practice of turning the numbers a business already collects — sales, clicks, deliveries, complaints — into decisions somebody can actually act on. It is not magicitsmeminsithu.hashnode.dev
MMin SiThu3h ago · 6 min readHow Businesses Predict: Forecasts, Churn, and What Customers Do NextTo put it simply, business prediction is using what customers did yesterday to make a careful guess about what they will do tomorrow — how much you will sell next month, which customers are about to litsmeminsithu.hashnode.dev
MMin SiThu3h ago · 6 min readSQL and Business Metrics: Asking a Database the Questions That MatterTo put it simply, a business metric is a number a company watches on purpose — revenue this month, customers lost this quarter, sales per visitor — and SQL is the language you use to ask a database foitsmeminsithu.hashnode.dev
MMin SiThu3h ago · 6 min readWhy Charts Matter: One Good Graph Beats a Hundred Rows of NumbersTo put it simply, a chart is a translation. It takes numbers written in the language of tables — row after row of figures, each one waiting its turn to be read — and restates them in the language youritsmeminsithu.hashnode.dev
DDr Habib Ur Rahman Habib5h ago · 6 min readMeasuring What Grid Batteries Actually Do: A Data-First Approach for Pakistan’s BESS PilotsThe context Pakistan is running one of the fastest consumer-led solar transitions anywhere. According to the Federal Minister for Power, close to 38,000 MW of rooftop solar has been installed, mostly futureenergytechinsights.hashnode.dev
AArhan Canli7h ago · 3 min readWhat is lookahead bias in fundamental data?Lookahead bias is when a backtest uses a number before anyone could have known it. In fundamental data it often happens without any bug in your code, because the value you download today is not alwaysarhancanli.hashnode.dev
DDACAMP IT Services8h ago · 4 min readThe Human Layer of AIEvery week, a new frontier model promises that human-in-the-loop engineering is on the verge of obsolescence. Synthetic data generators promise infinite scale. Zero-shot vision models claim to segmentdacampitservices.hashnode.dev
CCodex Reset22h ago · 7 min readWill Codex reset today? How our forecast works, and why waiting longer doesn't raise the oddsOriginally published on DEV. Disclosure: we build Codex Reset. This post explains how its reset forecast works, including where it falls short. The details come from the site's public method page and codexreset.hashnode.dev
EEnrichGrid23h ago · 9 min readProxycurl Alternative in 2026: How to Get LinkedIn Profile and Company Data with an API (Python)If your CRM sync, recruiting tool or lead-scoring pipeline called Proxycurl, it broke in July 2025 when Proxycurl shut down after LinkedIn's lawsuit. Since then a lot of teams have been looking for a enrichgrid.hashnode.dev
Aamailuk1d ago · 37 min readFrom Zero to Pandas (Part 4): Sorting Through Data9. Selecting Rows and Columns in Pandas In the previous section, you learned how to inspect a DataFrame and understand the information it contains. Now imagine you have a dataset with hundreds or thouamailuk.hashnode.dev
