Below are some non-research related projects. For research projects, please see the publications.
While there exists reading material for the shorthand system devised by Hugh L. Callendar, known as Orthic shorthand, much of it is quite dated. This project aims to bring a fresh perspective to Orthic shorthand practice by allowing users to transcribe and practice with more contemporary and personally interesting materials. Whether it’s the latest news articles, modern literature, or even daily correspondence, this tool opens up new avenues for both learning and enjoying this efficient shorthand system.
Link: https://github.com/rmattila/text2orthic
Efficient first-pass examination of academic papers for essential research quality indicators
arXamination is a tool designed to aid in the quick review of academic papers. It uses a large language model (LLM) to provide insights into research papers, helping to assess their relevance and quality efficiently.
Originally developed for arXiv papers, arXamination now supports papers from any URL or local PDF files, broadening its usability – this enables users to analyze a wider range of academic documents easily.
Key aspects:
arXamination is suitable for anyone needing a quick yet thorough understanding of a research paper.
Link: https://github.com/rmattila/arXamination
Just because two points are close on a map does not mean that they are “close in time” – the time to travel from one location to another depends on, e.g., the location of roads and public transport. In this post, we compute and plot isochrones in Stockholm when traveling using public transport.
Link: Read more
This is a tool for graphically illustrating the (possibly time-dependent) Markov chain underlying a Markov Decision Process (MDP). The figure can be exported as a pdf-file.
Link: https://github.com/rmattila/MDP-Explore
KIBok.se was a website for buying and selling used medical textbooks, targeting students at the Karolinska Institute in Stockholm. The website was developed using Python and Django, and was online from 2013 to 2019. The website had an average of 60 unique daily visitors and around 700 books for sale when it was retired.
Link: http://kibok.se
This is a personal web page. Opinions expressed are solely my own and do not express the views or opinions of my employer.
