Selected work

Projects

Applied AI, research, and software projects, from LLM workflows to image processing and embedded systems.

October 2026

The AI assistant behind this site

A bilingual (English and Greek) assistant that combines decision models, hybrid retrieval and cited answers to explore my work, research and articles on topics such as Formula 1.

Code

Application stack showing Astro, TypeScript, Tailwind CSS, Cloudflare Pages Functions, D1, Pinecone, OpenRouter, LangSmith, with a labeled best-effort tracing connection. — The application stack, from the chat UI to retrieval and observability.

May 2026

From Workflows to Agents: Building LLM Systems in Practice

A hands-on TechSaloniki X workshop comparing LLM workflows, agents, tools, and evaluation.

Workshop files Slides

Workshop diagram comparing fixed LLM workflows, agent tools, and an evaluation stack. — Workshop overview: workflows, agents, and evaluation.

October 2020

Mobile Battery Drain Prediction

My thesis: an Android data collection app and machine learning pipeline for analyzing and predicting phone battery drain.

Code PDF Slides

Thesis data pipeline from BatteryApp collection through preprocessing, usage clustering, and energy-drain prediction. — Battery usage collection and analysis pipeline.

February 2020

JPEG Image Compression

A baseline JPEG encoder and decoder built around DCT, quantization, and entropy coding.

Code PDF

Flowchart of JPEG compression and decompression stages, from color conversion to entropy coding and back. — JPEG encoder and decoder pipeline.

May 2018

Bash-ic Shell

A Unix shell in C with built-in commands, external programs, redirection, and batch mode.

Code

Terminal icon representing the custom Unix shell project. — Custom Unix shell implementation.

February 2019

Image Segmentation

A comparison of spectral clustering and normalized cuts for graph-based image segmentation.

Code

Comparison of a source image with spectral clustering and normalized-cut segmentation results. — Comparison of graph-based image segmentation methods.

February 2018

Optimization Algorithms

MATLAB implementations of local, constrained, and global optimization methods.

Code

Three-dimensional optimization surface with a path descending toward a minimum. — Optimization path over an objective function.

June 2019

Pi Messenger

A distributed Raspberry Pi Zero messenger designed around periodic communication and low power use.

Code

Raspberry Pi Zero board used for the distributed messenger project. — Raspberry Pi Zero messaging hardware.

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