Sina Denzel.

Computational linguistics · Heidelberg

Sina Denzel

I study computational linguistics in Heidelberg and work as a student assistant at the Leibniz Institute for the German Language.

Thesis
Authority Bias in LLM-Judges (in progress)
Toastmasters
Vice President Membership, Heidelberg

Open to working-student roles from November 2026

Portrait of Sina Denzel
01 Bachelor's thesisCredibility on Demand · authority bias in AI judges

Credibility on Demand

Checking the quality of AI-written answers by hand is slow and expensive, so more and more often another AI does the checking. But AI judges can be fooled, just like people. One example is authority bias: an answer seems better simply because it cites a source, whether or not the source is real. For my thesis I am building the first German dataset to measure this, and I test whether AI judges fall for it.

  • LLM-as-a-judge
  • AI bias
  • Python
  • LLM APIs
02 ProjectsGo Girls* Game Night
Three women laughing over a Go board at a Go Girls* Game Night

Go Girls* Game Night

In September 2026 I started the Go Girls* Game Night, a monthly Go evening for women* in Heidelberg that I host together with my partner. I wanted to give women an easy way into the game and bring more of them to Go.

I also built the event's website: it shows the upcoming dates and links them to Meetup.

  • Community building
  • Event organisation
  • Web design
03 Ankabuti ApplicationsGo Girls* Timer · Queer Gambit · Timebits
Ankabuti Applications logo: a cute black spider hanging from a thread

My own app label

Recently I started using agentic AI to see whether I could make apps myself, and found I could turn ideas into finished apps quickly. Soon I had lots of ideas for apps that are cute and useful at the same time, and I wanted to build them under my own brand. Its name comes from ankabut, the Arabic word for spider, so a little spider climbs into every app icon.

Go Girls* Timer

For the Go Girls* Game Nights I wanted a Go clock in a style that fits the event: cute and girly, just like the evenings themselves. I also needed a timer like this to practise for a tournament. So I built the app myself with Claude Code: a first working version took one day, and after about a month I was able to launch it in the Google Play Store. It lies on a phone next to the board and has everything a Go player could wish for: different time modes, statistics, and a calm, clear, self-explanatory design. Different themes still leave room for playfulness.

  • HTML · CSS · JavaScript
  • Offline web app
  • Claude Code
  • Google Play
The clock during a game, in the Go Girls* colours Time settings: Fischer, byo-yomi or a simple timer Paused game with statistics for both players

Queer Gambit

An adaptation of the Go Girls* Timer for chess: the same principle, made for the chessboard.

  • HTML · CSS · JavaScript
  • Offline web app
  • Claude Code

Timebits

Most timers show a number; I wanted to see at a glance how much time is left. In Timebits every minute is a small item on the screen that leaves when its minute is over, so the picture gets visibly emptier as time passes. Tap into the empty space and it switches to another look.

  • JavaScript
  • Canvas animation
  • Offline web app
  • Claude Code
A flower with seven petals left; fallen petals lie below A spider on its thread with nine legs left; fallen legs lie below Penguins on an ice floe; when a minute is over, one waddles to the edge and dives into the water