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mlr-org

54 indexed repositories · View on GitHub

mlr
Machine Learning in R

R · 1686 stars
mlr3
mlr3: Machine Learning in R - next generation

R · 1078 stars
mlr3book
Online version of Bischl, B., Sonabend, R., Kotthoff, L., & Lang, M. (Eds.). (2024). "Applied Machine Learning Using mlr3 in R". CRC Press.

TeX · 283 stars
mlrMBO
Toolbox for Bayesian Optimization and Model-Based Optimization in R

R · 187 stars
batchtools
Tools for computation on batch systems

R · 184 stars
mlr3pipelines
Dataflow Programming for Machine Learning in R

R · 149 stars
mlr3extralearners
Extra learners for use in mlr3.

R · 116 stars
mlr3learners
Recommended learners for mlr3

R · 98 stars
mlr3tuning
Hyperparameter optimization package of the mlr3 ecosystem

R · 60 stars
mlr3spatiotempcv
Spatiotemporal resampling methods for mlr3

TeX · 56 stars
mlr3torch
Deep learning framework for the mlr3 ecosystem based on torch

R · 56 stars
mlr3viz
Visualizations for mlr3

R · 46 stars
mlr3spatial
Spatial objects within the mlr3 ecosystem

HTML · 45 stars
mlr3fselect
Feature selection package of the mlr3 ecosystem.

R · 43 stars
mlr3keras
Deep learning for mlr3

R · 38 stars
mlrCPO
Composable Preprocessing Operators for MLR

R · 36 stars
mcboost
Multi-Calibration & Multi-Accuracy Boosting for R

R · 33 stars
paradox
ParamHelpers Next Generation

R · 28 stars
mlr3cluster
Cluster analysis for mlr3

R · 27 stars
mlr3mbo
Flexible Bayesian Optimization in R

R · 27 stars
34 more repositories live on View on GitHub

Beginner friendly Everything

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Unable to view Readme file Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mlr-org/mlr#2867 · 1 comment · Opened Sep 15, 2026
Remove deprecated `pipeline_bagging()` Open

Type: Deprecation Reminder

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

mlr-org/mlr3pipelines#1031 · Opened Sep 14, 2026
New ABs `task_types` and `feature_types` Open

mlr-org/mlr3filters#194 · 1 assignee · Opened Aug 31, 2026
`as_learner.Graph` should allow the `$base_learner()` to control the conversion Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

mlr-org/mlr3pipelines#1022 · 4 comments · Opened Aug 22, 2026
add support for lazy tensor prediction Open

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

mlr-org/mlr3torch#520 · Opened Aug 21, 2026
torch todos Open

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

mlr-org/mlr3torch#519 · Opened Aug 20, 2026
Adversarial Testing, Bug Fixes, Error Handling, and Refactoring Open

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

mlr-org/mlr3hf#32 · 1 comment · Opened Aug 18, 2026
update readme Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

mlr-org/mlr3torch#516 · Opened Aug 18, 2026
Remove temporary diabetes task compatibility shim Open

Type: Deprecation Reminder

Difficulty 2/5 Half a day Newbie friendliness 84/100

mlr-org/mlr3pipelines#1019 · Opened Aug 14, 2026
pipe op impute locf Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

mlr-org/mlr3forecast#54 · Opened Aug 2, 2026
Errors raised in the objective function are printed to stderr by R_tryEval() Open

Difficulty 1/5 Under an hour Newbie friendliness 82/100

mlr-org/libcmaesr#17 · Opened Jul 29, 2026
Release libcmaesr 0.1.0 Open

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

mlr-org/libcmaesr#15 · Opened Jul 28, 2026
Check one se rule callback statistics Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

mlr-org/mlr3fselect#176 · Opened Jul 27, 2026
check how paramset_to_configspace handles / should handle trafos Open

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

mlr-org/paradox#431 · Opened Jul 25, 2026
Update tabpfn Open

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

mlr-org/mlr3automl#72 · Opened Jul 23, 2026
Support new blockCV 4.0 features (fold balancing, spatial_weight) Open

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

mlr-org/mlr3spatiotempcv#257 · 1 comment · 1 reaction · Opened Jul 21, 2026
Add base_learner method Open

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

mlr-org/mlr3automl#70 · Opened Jul 20, 2026
Feature Request: GPU-Accelerated Gaussian Process Surrogate (via torch / mlr3torch?) Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

mlr-org/mlr3mbo#218 · 4 comments · Opened Jul 15, 2026
Check if we are handling weights correctly Open

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

mlr-org/mlr3pipelines#1011 · Opened Jul 13, 2026
handle extra data, quantiles in Prediction objects Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

mlr-org/mlr3pipelines#1010 · Opened Jul 13, 2026
plotting functions for learning curves etc? Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

mlr-org/celecx#6 · 1 comment · Opened Jul 13, 2026
online docs landing page missing images Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

mlr-org/celecx#5 · Opened Jul 13, 2026
How correctly are we currently handling non-S3 'state'? Open

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

mlr-org/mlr3pipelines#1009 · Opened Jul 13, 2026
`$extra` field of Prediction[Data] appears to not be documented Open

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

mlr-org/mlr3#1489 · Opened Jul 13, 2026
WVIM with `direction = "leave-in"`: Allow fixed group of features to use as reference Open

mlr-org/xplainfi#81 · 1 assignee · Opened Jun 29, 2026
Remove phash deprecation warning Open

Type: Deprecation Reminder

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

mlr-org/mlr3pipelines#1005 · Opened Jun 15, 2026
Remove deprecation warning in `PipeOpNMF` Open

Type: Deprecation Reminder

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mlr-org/mlr3pipelines#1004 · Opened Jun 15, 2026
Refactor `stop(sprintf(...))` in `check_types()` Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

mlr-org/mlr3pipelines#1002 · 1 comment · Opened Jun 10, 2026
Implementation of AX Optimizer Open

mlr-org/bbotk#340 · 1 assignee · Opened May 28, 2026
Do we really need to break clbk() to be able to pass the state during construction? Open

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

mlr-org/mlr3misc#181 · Opened May 26, 2026
Automated Render not working Open

Difficulty 4/5 3-5 days Newbie friendliness 15/100

mlr-org/mlr3cheatsheets#17 · Opened May 21, 2026
Implementation of Optuna Optimizer Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

mlr-org/bbotk#338 · Opened May 18, 2026
Possibility to react to changes in mlr_reflections Open

Priority: Low Status: Discussion Needed

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

mlr-org/mlr3#1474 · Opened Apr 29, 2026
FilterEnsemble task_types differs depending on package load order Open

Priority: Low

Difficulty 4/5 3-5 days Newbie friendliness 48/100

mlr-org/mlr3pipelines#994 · Opened Apr 29, 2026
mlr3book Open

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

mlr-org/mlr3docker#34 · Opened Apr 24, 2026
mlr3website Open

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

mlr-org/mlr3docker#33 · Opened Apr 24, 2026
Release mlr3fairness 0.4.1 Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

mlr-org/mlr3fairness#86 · Opened Apr 22, 2026
Add option to task$data() to return all columns of the backend Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mlr-org/mlr3#1470 · Opened Apr 20, 2026
classif.earth only supports 2 classes but earth R package supports 3+? Open

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

mlr-org/mlr3extralearners#580 · 4 comments · Opened Apr 13, 2026
split release and dev pkgdown versions Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

mlr-org/survdistr#28 · Opened Apr 13, 2026
Implement IBS via `RiskRegression` Open

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

mlr-org/mlr3cmprsk#20 · 3 comments · Opened Apr 11, 2026
Fairness chunk 7 fails Open

Bug mlr3book

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

mlr-org/mlr3book#936 · 1 comment · Opened Apr 6, 2026
(Re-)implement metrics Open

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

mlr-org/mlr3cmprsk#18 · Opened Apr 5, 2026
Clarification required regarding type of learner (model) Open

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

mlr-org/mlr3book#934 · 4 comments · Opened Apr 1, 2026
`PredictionCompRisks` improvements Open

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

mlr-org/mlr3cmprsk#14 · Opened Mar 21, 2026
Add PCHIP (Piecewise Cubic Hermite Interpolating Polynomial) interpolation Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

mlr-org/survdistr#24 · Opened Mar 17, 2026
Add log-linear H(t) interpolation Open

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

mlr-org/survdistr#23 · Opened Mar 17, 2026
Generalize to any interpolation method Open

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

mlr-org/survdistr#22 · Opened Mar 13, 2026
export blocks to use as col_role=group? Open

Difficulty 5/5 Over a week Newbie friendliness 32/100

mlr-org/mlr3spatiotempcv#251 · Opened Mar 10, 2026
[LRNRQ] Add Accelerated Bayesian Causal Forests from package XBCF Open

Learner Status: Request

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

mlr-org/mlr3extralearners#568 · 2 comments · Opened Mar 9, 2026

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