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Customer Churn Prediction and Retention Analytics using Python, SQL, XGBoost, SHAP, and Power BI to identify churn drivers and generate actionable business insights.
A beverage-first quick-commerce MVP for discovering, personalizing, and ordering drinks from nearby stores.
a living, pixel-art urban stream that shows how the health of the water, the wildlife and the people nearby rise and fall together.
One AI-Powered Operating System for Your Entire Restaurant
DROP is an AI teacher that finds out what students don't understand before the test does, then helps them fix it.
An AI second pair of eyes for citizen stream assessments. It explains what it sees; the citizen decides.
An AI agent that remembers customer feedback, discovers evolving trends, and turns past insights into smarter product decisions.
Your stream, Explained out loud
A community action platform for residents and volunteers to report drainage and litter issues, confirm conditions, follow progress, and receive weather-aware guidance for healthier urban waterways.
A flood simulator you can play. Draw your block, run a real NOAA design storm, and find the cheapest thing that keeps water out of the house. It turned out to be gutters.
Emergency alerts, in your language, in real time
The city's water starts upstream. Open data and citizen observations turn drought evidence into transparent retention survey priorities for three rivers around Kraków.
A second look for citizen stream assessments. Riffle flags contradictions, explains why, asks the volunteer to re-check, and sends doubtful reports to a person. It never edits an answer.
The transaction firewall for AI-powered commerce. AI understands the purchase; deterministic code enforces the user's spending limits; PayPal moves the money only after human approval.
AI interview coach: paste your resume and a job description, get tailored questions with model answers, coding practice, company profiles and voice mocks. Free, no login. Nebius + NVIDIA Nemotron.
Turning citizen observations into actionable freshwater intelligence.
An automated AI WhatsApp assistant for smart message processing and instant auto-replies.
Calibrated weather alerts, focused sampling plans, and field evidence for urban river monitoring. Track 6: Resilience Informatics.
Present your slides to four AI classmates who ask questions but never explain, then quiz themselves using only your words. Their mistakes show exactly what you still need to learn.
Alexa+ mock interviewer that asks questions from your own resume and a target job, grades every spoken answer, and maps your weak spots. Self-hosted MCP server on Node.js + Amazon Bedrock.
AquaAI asks citizens one smart question to fix the missing piece in a stream report, while AI assists and humans always decide.
