César Salgado

Vegetable price forecast

Wholesale vegetable prices swing sharply from one month to the next, so buyers plan purchases and promotions without knowing where prices are heading.

Forecasts next month's price per kilo at Corabastos from official SIPSA-DANE data, with a likely range and a plain signal for each product: likely drop, likely rise or no clear signal.

Tradex: market analyzer

Reviewing dozens of instruments by hand, across charts, indicators and news, takes hours before any decision is made.

Screens up to 30 Yahoo Finance tickers, charts technical indicators, forecasts prices with ARIMA and scores news sentiment with a language model.

AI financial analyzer

Income and expenses end up in a spreadsheet that nobody analyzes, and every answer means building formulas or asking an analyst.

Record each movement in a form, follow income and spending in a dashboard, and ask questions in a chat that answers with a chart. The data lives in Google Sheets.

Mandarin Assistant

Generic translators answer with words a beginner has not studied yet, which confuses students more than it helps them.

Students pick their level and the vocabulary lists to review, then practice translations, grammar, listening and mock exams built only from the words of their course.

Music automation

An app that automates music creation with machine learning. The training set is made only of my own compositions. The video shows how it works; the app itself is not open to the public because the music is my own work.

Cesar-Bot

A CV cannot answer follow-up questions, and recruiters and clients always have them.

A chatbot that answers questions about my background from my own documents, streaming its answer in real time. It runs on this page.