Tootfinder

Careful if you're copying around Firefox profiles and rely on settings to be retained: The default value for the about:config key datareporting.healthreport.uploadEnabled differs by I-don't-know-what. If you disable the "Send technical and interaction data to Mozilla" checkbox in an instance where it's default off, no value is stored (because it's "default"), and it may be on in another.
(For example, I don't have long-running Firefox profiles bu…

Towards Balanced Behavior Cloning from Imbalanced Datasets
Sagar Parekh, Heramb Nemlekar, Dylan P. Losey
https://arxiv.org/abs/2508.06319 https://arxiv.org…

Towards Balanced Behavior Cloning from Imbalanced Datasets
Robots should be able to learn complex behaviors from human demonstrations. In practice, these human-provided datasets are inevitably imbalanced: i.e., the human demonstrates some subtasks more frequently than others. State-of-the-art methods default to treating each element of the human's dataset as equally important. So if -- for instance -- the majority of the human's data focuses on reaching a goal, and only a few state-action pairs move to avoid an obstacle, the learning algorithm will pla…