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UCL

11 indexed repositories · View on GitHub

STIR
Software for Tomographic Image Reconstruction

C++ · 160 stars
rsd-engineeringcourse
Course materials for Research Software Engineering course.

Python · 133 stars
TLOmodel
Epidemiology modelling framework for the Thanzi la Onse project

Python · 35 stars
STIR-exercises
Exercises for STIR

Jupyter Notebook · 19 stars
open-source
Open Source Programme Office

HTML · 9 stars
rmcmc
Robust Markov chain Monte Carlo methods in R

R · 8 stars
simstock_qgis
Simstock plugin for QGIS: allows dynamic urban building energy models to be created and simulated all within QGIS.

Python · 3 stars
causalprog
A Python package for causal modelling and inference with stochastic causal programming

Python · 3 stars
Blender_Randomiser

Python · 2 stars
frrant

JavaScript · 2 stars
hiv-modelling

SAS · 1 star

Beginner friendly Everything

Open All

Post-conversion sinogram dimensionality. Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

UCL/STIR#1761 · 3 comments · Opened Sep 18, 2026
ProjDataFrom*::get_sinogram(SinogramIndices&) etc is not accessible Open

UCL/STIR#1759 · 1 assignee · Opened Sep 16, 2026
There are two events' data YAMLs one is not rendered. Open

bug housekeeping website

Difficulty 3/5 1-2 days Newbie friendliness 68/100

UCL/open-source#115 · Opened Sep 15, 2026
CI: cache ROOT test files Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

UCL/STIR#1758 · 4 comments · 1 reaction · Opened Sep 13, 2026
Make ProjDataInfoCylindricalNoArcCorr, ProjDataInfoGeneric/Blocks etc hierarchy sensible Open

UCL/STIR#1757 · 1 assignee · Opened Sep 13, 2026
test_KeyParser.cxx warnings on Apple clang version 18.1.8 Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

UCL/STIR#1756 · Opened Sep 13, 2026
Creating Utility Function for Making Map Plots Open

enhancement

UCL/TLOmodel#1887 · 1 assignee · Opened Sep 9, 2026
Improve ModelParam typing Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

UCL/causalprog#215 · Opened Sep 9, 2026
Funding page only gets updated when push happens Open

website

Difficulty 1/5 1-3 hours Newbie friendliness 88/100

UCL/open-source#110 · 1 comment · Opened Sep 8, 2026
occasional segfault in CI for MacOS-conda-latest-compiler Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

UCL/STIR#1754 · Opened Sep 8, 2026
Inconsistent handling of FirstGenericAppointment in Malaria and COPD modules Open

UCL/TLOmodel#1886 · 1 assignee · Opened Sep 7, 2026
(normally small) z-shift in CListEventScannerWithDiscreteDetectors::get_LOR() vs `ProjDataInfo::get_LOR()` for blocks/generic scanner Open

bug

UCL/STIR#1753 · 1 comment · 1 assignee · Opened Sep 7, 2026
Interfile parsing of BlocksOnCylindrical uses wrong default for axial crystal spacing Open

bug

UCL/STIR#1752 · 1 assignee · Opened Sep 7, 2026
potential problems with even TOF bins and TOF mashing Open

UCL/STIR#1751 · 1 comment · 1 assignee · Opened Sep 6, 2026
reading Siemens compressed sinograms bad user experience Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

UCL/STIR#1750 · Opened Sep 3, 2026
Impact Of Antenatal Syphilis Screening And Treatment On Congenital Syphilis Outcomes (Stillbirth) Open

epi

UCL/TLOmodel#1884 · 2 assignees · Opened Sep 1, 2026
Proliferation of outputs in HealthBurden (and other core modules) Open

future-dev wontfix

Difficulty 5/5 Over a week Newbie friendliness 38/100

UCL/TLOmodel#1883 · Opened Aug 15, 2026
KineticParameters<N> bakes parameter count into the C++ type system, however it should be a runtime property Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

UCL/STIR#1745 · Opened Aug 10, 2026
SWIG 4.5 incompatibilities Open

bug

UCL/STIR#1742 · 1 comment · 1 assignee · Opened Aug 9, 2026
Suggested Readme improvements Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

UCL/TLOmodel#1882 · Opened Aug 7, 2026
Suggested Readme improvements Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

UCL/rsd-engineeringcourse#278 · Opened Aug 7, 2026
Clear up ambiguity in the `Query bounds on causal response` section of `docs/theory/continuous-treatements.md` Open

Difficulty 2/5 1-3 hours Newbie friendliness 64/100

UCL/causalprog#208 · Opened Aug 6, 2026
Resolve `hidden variables` section confusion in `docs/theory/continuous-treatments.md` Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

UCL/causalprog#207 · Opened Aug 6, 2026
pregnancy loss does not contribute to "population health" Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

UCL/TLOmodel#1881 · Opened Aug 6, 2026
Code Triage Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

UCL/causalprog#201 · 1 comment · Opened Aug 6, 2026
Add links between documentation pages Open

Difficulty 1/5 1-3 hours Newbie friendliness 75/100

UCL/causalprog#197 · Opened Aug 5, 2026
Allow easy comparison of samplers with single function Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

UCL/rmcmc#141 · Opened Aug 3, 2026
Allow `DiscreteRandomVariableNode` to take a range as its `values` argument Open

good first issue

Difficulty 3/5 1-2 days Newbie friendliness 55/100

UCL/causalprog#182 · Opened Aug 3, 2026
PETSIRD reading clean-up Open

UCL/STIR#1735 · 1 comment · 1 assignee · Opened Aug 1, 2026
Remove CListModeDataBasedOnCoordinateMap? Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

UCL/STIR#1734 · 2 comments · Opened Aug 1, 2026
Expose `stochastic_gradient_descent`'s keyword-arguments in `penalty_method` and `augmented_lagrangian` Open

good first issue

Difficulty 3/5 1-2 days Newbie friendliness 55/100

UCL/causalprog#179 · Opened Jul 31, 2026
Documentation Tidy Up before end-of-ARC-involvement Open

Difficulty 2/5 Half a day Newbie friendliness 65/100

UCL/causalprog#171 · Opened Jul 28, 2026
Investigate MC Accuracy Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

UCL/causalprog#170 · Opened Jul 27, 2026
Warm-up cannot be traced when using heterogeneous adapter stages Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

UCL/rmcmc#138 · Opened Jul 22, 2026
Initial guess provided to `learn_initialiser` ? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

UCL/causalprog#164 · Opened Jul 22, 2026
Allow specifying initial state as a dimension-dependent function Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

UCL/rmcmc#135 · Opened Jul 16, 2026
remove old priors Open

enhancement

UCL/STIR#1730 · 1 assignee · Opened Jul 15, 2026
Allow easily sampling from `posteriordb` models Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

UCL/rmcmc#129 · 1 comment · Opened Jul 9, 2026
Add Adam-based shape adapter(s) as alternative to variance/covariance shape adapters Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

UCL/rmcmc#128 · Opened Jul 6, 2026
Standardise NDArray type hints Open

UCL/causalprog#155 · 1 assignee · Opened Jul 3, 2026
Is `"l"` a bad label? Open

question

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

UCL/causalprog#153 · Opened Jul 3, 2026
clinics configuration is not updated if specified via parameters Open

UCL/TLOmodel#1875 · 1 assignee · Opened Jul 1, 2026
Refresh Website `tlomodel.org` and make a Low-Code solution for updating Open

website

UCL/TLOmodel#1874 · 1 assignee · Opened Jul 1, 2026
Handling of scaling_factor with suspend/resume functionality Open

UCL/TLOmodel#1873 · 1 assignee · Opened Jul 1, 2026
Log DALYS and Deaths by district in HealthBurden Logger Open

UCL/TLOmodel#1872 · 1 comment · 1 assignee · Opened Jul 1, 2026
create_pickles_locally throws an error Open

Difficulty 3/5 1-2 days Newbie friendliness 20/100

UCL/TLOmodel#1868 · Opened Jun 26, 2026
Allow specifying models for target distribution using `brms` syntax Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 40/100

UCL/rmcmc#125 · Opened Jun 15, 2026
"trivial" test in test_interpolate_projdata.cxx Open

UCL/STIR#1726 · 1 assignee · Opened Jun 15, 2026
Create notebook for Ricardo's example problem Open

UCL/causalprog#138 · 1 comment · 1 assignee · Opened Jun 4, 2026
Nice interface for doing the training steps Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

UCL/causalprog#137 · Opened Jun 4, 2026

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