DEV Community

Data Science

Data Science allows us to extract meaning from and interpret data.

Posts

👋 Sign in for the ability to sort posts by relevant, latest, or top.
14,399 Backtest Events Gave Me t = 8.20. Equal-Weighting Days Gave 1.66

14,399 Backtest Events Gave Me t = 8.20. Equal-Weighting Days Gave 1.66

3
Comments
4 min read
Turning Messy Data to Management Decisions: A Power BI Project for a Kenyan Vehicle Importer

Turning Messy Data to Management Decisions: A Power BI Project for a Kenyan Vehicle Importer

Comments
10 min read
No U.S. coal unit has retired in 2026 so far. Here is what happened to the 6.4 GW that was planned

No U.S. coal unit has retired in 2026 so far. Here is what happened to the 6.4 GW that was planned

Comments
2 min read
Beyond the 99% Accuracy Lie: Building a Leak-Free XGBoost Pipeline for Imbalanced Data

Beyond the 99% Accuracy Lie: Building a Leak-Free XGBoost Pipeline for Imbalanced Data

Comments
6 min read
# SQL for Data Analysis: Window Functions, Joins, CTEs and Subqueries

# SQL for Data Analysis: Window Functions, Joins, CTEs and Subqueries

Comments
7 min read
What 300 live Booking.com ads reveal about their Google and Meta strategy

What 300 live Booking.com ads reveal about their Google and Meta strategy

Comments
4 min read
I Used My Live Guitar as a Sentiment Signal Against an AI Script

I Used My Live Guitar as a Sentiment Signal Against an AI Script

Comments
2 min read
PrizePicks Gave Me Nine Pass-Yard Lines for One Quarterback. Eight Are Over-Only

PrizePicks Gave Me Nine Pass-Yard Lines for One Quarterback. Eight Are Over-Only

Comments
6 min read
A pytrends alternative in 2026: Google Trends data in Python without 429 errors

A pytrends alternative in 2026: Google Trends data in Python without 429 errors

Comments
3 min read
phiTON#2

phiTON#2

Comments
4 min read
Build a Titanic Model in Python, Then Edit the Pipeline Visually

Build a Titanic Model in Python, Then Edit the Pipeline Visually

Comments
7 min read
Building Reliable Structural Health Monitoring Systems With Sensor Data and AIoT

Building Reliable Structural Health Monitoring Systems With Sensor Data and AIoT

Comments
5 min read
An Evaluation Score Is Only as Useful as Its Target

An Evaluation Score Is Only as Useful as Its Target

Comments
5 min read
A-Book or B-Book? What Your Own Filled Data Reveals About Your Broker

A-Book or B-Book? What Your Own Filled Data Reveals About Your Broker

Comments
3 min read
How we priced 27,854 moving routes using Census migration data

How we priced 27,854 moving routes using Census migration data

Comments
4 min read
👋 Sign in for the ability to sort posts by relevant, latest, or top.