Recall: Read & Remember

Full-stack LLM product · 2025–present

A mobile learning application that uses an LLM to guide users through book comprehension using the Socratic method, asking questions rather than giving answers. Live on Google Play and the App Store.

  • Compose Multiplatform client for Android, iOS and web from a single codebase
  • Kotlin Spring Boot backend with REST API and RAG over PostgreSQL’s pgvector; Supabase for Postgres and auth
  • Dockerized backend on GCP Cloud Run, infrastructure as code with Terraform/OpenTofu
  • Remote MCP server with OAuth 2.1 auth, so external AI agents can use Recall
  • Cloud LLMs via OpenAI-compatible APIs, plus an offline LLM on Android and iOS (LiteRT-LM)
  • Evals: 130+ golden cases, code checks, LLM judges validated on human labels, Langfuse tracing
  • Ran 3-round model bake-offs after single runs proved unreliable
  • Cut AI latency 46% by capping the thinking budget; shipped safely thanks to the eval pipeline
  • Chrome extension for book content extraction

Kotlin · Spring Boot · Compose Multiplatform · PostgreSQL / pgvector · Supabase · GCP Cloud Run · Terraform/OpenTofu · MCP · LiteRT-LM · DeepEval · Langfuse

Website | Google Play | App Store | Blog: The AI behind Recall | Blog: Presenting Recall | Blog: Introducing the Recall blog


Memristor Crossbar Simulation

Hardware-aware ML · 2026

A simple neural network mapped onto a memristor crossbar array.

  • Baseline MLP mapped to conductances under two weight encodings (differential pair and reference column)
  • Modelled hardware non-idealities (noise, drift) and evaluated robustness strategies for both encodings
  • Hardware-aware training restored accuracy from 85.5% to 97.5%
  • Cross-checked against IBM’s aihwkit

Python · PyTorch · aihwkit

GitHub


Bean Disease Classification

Computer vision & edge AI · 2025

Full end-to-end pipeline from training to mobile deployment.

  • Transfer learning with two-phase training (freeze, then fine-tune); 97.7% test accuracy on ~1k images
  • Data augmentation to compensate for the small dataset
  • TFLite model on Android for real-time, offline inference (85% for the Android model)
  • MLflow experiment tracking and Apache Airflow orchestration
  • Dockerized GPU training locally or on Modal; Flask REST API for configurable training runs

Keras · TensorFlow · TFDS · TFLite · MLflow · Airflow · Docker · Modal · Flask · Hugging Face · Android

GitHub | Hugging Face model


Air Quality Prediction

Time-series forecasting · 2025

An air quality prediction system designed to forecast AQI for Poprad, Slovakia using historical air-quality and meteorological data.

  • Compared ARIMA, Prophet, XGBoost and LSTM models (best Willmott Index 0.84)
  • Recursive multi-step forecasting with rolling-window cross-validation
  • Automated end to end with GitHub Actions: data, Hopsworks feature store, training, deploy
  • Live demo on Hugging Face Spaces

Python · scikit-learn · XGBoost · TensorFlow/LSTM · Prophet · statsmodels · Hopsworks · Docker · GitHub Actions

GitHub | Live demo


Sudoku Solver

Deep learning · 2025

A deep learning approach to solving Sudoku puzzles. All 26 experiments are documented in the repo.

  • Custom loss penalising broken Sudoku rules: same budget (100k samples, 30 epochs, ~4 min) gives 11% with cross-entropy vs 76% with the hybrid loss
  • Curriculum learning, from easy puzzles to hard ones
  • TFRecords for efficient loading of a large dataset

Keras · TensorFlow · TFRecords · CNNs

GitHub


Variational Autoencoders (MNIST)

Generative models · 2025

Built a VAE to reconstruct and generate new MNIST digits.

  • Visualised the latent space for debugging and understanding representations
  • Experimented with Beta-VAE based on paper reading
  • Defined custom metrics to reduce reliance on purely visual feedback

Keras · TensorFlow

GitHub


Titanic Survival Prediction (Kaggle)

Classical ML · 2025

Focus on feature engineering.

  • Used decision trees to evaluate feature importance
  • Compared multiple models with hyperparameter tuning

scikit-learn

GitHub


Kotlin Multiplatform samples

Mobile · 2021

Two public samples from 2021.

  • CatViewerDemo: Kotlin Multiplatform for Android and iOS; shared ViewModel, repository and data sources, Compose UI on Android, SwiftUI on iOS, Ktor
  • ChatDemo: a Jetpack Compose chat UI sample

Kotlin · KMP · Jetpack Compose · SwiftUI · Ktor

CatViewerDemo | ChatDemo


Learning