Matias Barcelo

Handshake to Signal

As part of the team behind Handshake to Signal, named Most Investable at the AI Builder Sprint Demo Day (AI Women Leaders), held at UT Dallas on July 22, 2026. Selected by a panel of investors and operators for the strongest investment potential in the cohort.

Handshake to Signal was built during the AI Builder Sprint, a four-week program taking an idea to a working AI product, and pitched live at Demo Day, where a panel of VCs and operators judged the cohort's ten teams in real time. The prize included access to the VC Arena investor network and a sales assessment from Talsmart.

Receiving the Most Investable award at the AI Builder Sprint Demo Day
Receiving the Most Investable award at the AI Builder Sprint Demo Day (UT Dallas, July 22, 2026).
Certificate of Achievement for Most Investable, presented to Matias Barcelo
Certificate of Achievement for Most Investable at the AI Builder Sprint (AI Women Leaders, 2026).

CS 2341 SuperSearch — “Did it Make the News?”

Final project for SMU CS 2341 Data Structures (Spring 2024, Prof. Michael Hahsler). A C++ search engine over US financial news JSON articles using an inverted file index on AVL trees, with Porter stemming, stop-word removal, persistence, and PERSON: / ORG: entity filters. Ranking uses a SuperSearch Score based on term frequency.

Code: GitHub · Project instructions

supersearch — CS2341 SuperSearch

English only: the article corpus is US financial news written in English, and the Porter stemmer it uses is English specific, so queries have to be typed in English.

Live API on Fly.io. First request after idle may take a few seconds (cold start). Type api <url> to override (e.g. api http://localhost:8080 for local Docker).

Learn more — full prompt examples & demo tips

As in the README: after a query, SuperSearch returns a page of articles ranked by SuperSearch Score (3 per page in this demo, 15 in the real CLI). Open an article by typing its index. Click any example below to run it in the terminal above.

Words only — Brexit coverage

Please type in search: brexit

Filter with PERSON: and/or ORG:. SuperSearch Score still counts only the word terms (entity-only searches score 0).

Person only — Eric Schweitzer

Please type in search: PERSON: eric schweitzer

Words + person — Brexit mentioning Eric Schweitzer

Please type in search: brexit PERSON: eric schweitzer

Words + person + org — Brexit, Schweitzer, and Reuters

Please type in search: brexit PERSON: eric schweitzer ORG: reuters

Same filters, different order

Please type in search: market ORG: reuters PERSON: eric schweitzer

Paging — Reuters articles span two pages; type next after the results, then prev to go back

Please type in search: ORG: reuters

After results: type 0 (etc.) for article text, next/prev to page, Enter for a new query, q to quit the CLI. This browser terminal runs the real C++ engine over HTTP on a small demo corpus; the full Kaggle financial-news set behaves the same when loaded locally.


ChatPlays

“White Paper”/ Write-up on Idea: PDF

DFW CodeLaunch Startup Competition Finalist

Wireframes: Wireframe for MVP More complex wireframe (click launch to go to next screen)

Articles: Codelaunch.com article Dallas Innovates Article

Idea was to make an application that made it easy for a streamer to make their own “Twitch Plays” on their live stream regardless of streaming platform and game by utilizing virtual controllers such as ViGEmBus (specifically the vgamepad module in Python).

After working on the idea with a mentor from the Dallas Entrepreneurship Center I convinced a couple of fellow Encyclopedia.Zone (Don Jolly‘s old website and formerly Dagger Magazine) board members to join me in applying to CodeLaunch, a startup competition in Dallas, TX.

After several rounds of interviews, one of which where we recieved a hackathon sponsorship from software consulting company Allata, we made it to the grand final of the competition as the only student finalists (I gave the pitch).

The ChatPlays team at The Star in Frisco
The ChatPlays team at The Star in Frisco during CodeLaunch DFW, 2021.

 Outcome: Project discontinued. Did not raise any rounds of funding and team members had full-time jobs/school to attend to.