Issues

• Update tuning measurement to consistently use MeasurementCollector

  good first issuetuning
  Task

  lenskit/lkpy#1250 · Filter by author mdekstrand opened on Nov 1, 2026 · 2026.5

• Experiment with heartbeat scheduling for parallel work

  ideaperformance
  Task

  lenskit/lkpy#1237 · Filter by author mdekstrand opened on Oct 12, 2026
  

• Drop Python 3.12 support

  dependenciesdeprecation
  Task

  lenskit/lkpy#1232 · Filter by author mdekstrand opened on Oct 9, 2026 · 2027.1
  

• Add Polars support for data input / results

  datadependenciesidea
  Feature

  lenskit/lkpy#1230 · Filter by author mdekstrand opened on Oct 6, 2026 · 2027.1

• Build free-threaded Conda packages

  build
  Task

  lenskit/lkpy#1227 · Filter by author mdekstrand opened on Sep 23, 2026 · 2027.1

• Add standardized benchmark tool

  cliperformance
  Feature

  lenskit/lkpy#1222 · Filter by author mdekstrand opened on Sep 22, 2026

• Provide mechanism to filter training data for (some) models

  componentsdata
  Feature

  lenskit/lkpy#1218 · Filter by author mdekstrand opened on Sep 18, 2026

• Implement caching for Woodpecker CI jobs

  build
  Task

  lenskit/lkpy#1215 · Filter by author mdekstrand opened on Sep 15, 2026
  

• Only compute necessary convolution layer rows in FlexMF LightGCN

  dataflexmfperformance
  Task

  lenskit/lkpy#1214 · Filter by author mdekstrand opened on Sep 14, 2026

• Implement accelerated pseudo-WARP

  flexmfperformance
  Task

  lenskit/lkpy#1213 · Filter by author mdekstrand opened on Sep 14, 2026

• Implement background thread training batch preparation

  data
  Feature

  lenskit/lkpy#1212 · Filter by author mdekstrand opened on Sep 14, 2026

• Implement training batch sampling in dataset

  data
  Feature

  lenskit/lkpy#1211 · Filter by author mdekstrand opened on Sep 14, 2026

• Support dynamic / pooling explicit FlexMF

  componentsflexmf
  Feature

  lenskit/lkpy#1208 · Filter by author mdekstrand opened on Sep 3, 2026

• MeanPopRank is excessively slow when recommendation and source data have different types of item IDs

  evaluation
  Bug

  lenskit/lkpy#1207 · Filter by author mdekstrand opened on Sep 3, 2026
  

• Make sure that devcontainer works with Podman and rootless Docker

  build
  Task

  lenskit/lkpy#1206 · Filter by author mdekstrand opened on Sep 3, 2026
  

• Train FlexMF with user pooling

  flexmf
  Feature

  lenskit/lkpy#1200 · Filter by author mdekstrand opened on Aug 27, 2026

• Support responsive LightGCN

  componentsflexmf
  Feature

  lenskit/lkpy#1199 · Filter by author mdekstrand opened on Aug 27, 2026

• Support responsive recommendations in FlexMF

  componentsflexmf
  Feature

  lenskit/lkpy#1198 · Filter by author mdekstrand opened on Aug 27, 2026

• Investigate whether heap-sort is faster for item-KNN truncation

  componentsperformance
  Task

  lenskit/lkpy#1196 · Filter by author mdekstrand opened on Aug 27, 2026

• Allow optional hyperparameters in tuning

  tuning
  Feature

  lenskit/lkpy#1192 · Filter by author mdekstrand opened on Aug 25, 2026

• Serialize type aliases into pipeline configurations

  pipeline
  Task

  lenskit/lkpy#1190 · Filter by author mdekstrand opened on Aug 25, 2026

• Import global Steam data

  data
  Feature

  lenskit/lkpy#1178 · Filter by author mdekstrand opened on Aug 3, 2026

• Import Steam Australia reviews

  data
  Feature

  lenskit/lkpy#1177 · Filter by author mdekstrand opened on Aug 3, 2026

• Support Steam data

  data
  Feature

  lenskit/lkpy#1175 · Filter by author mdekstrand opened on Aug 3, 2026

• Add an option to require a GPU

  docsperformance
  Task

  lenskit/lkpy#1173 · Filter by author mdekstrand opened on Aug 1, 2026