Umberto Lupo

Results 34 issues of Umberto Lupo

Hi! I am preparing a paper for submission to JOSS and have found some things difficult to achieve. In particular, I am unable to figure out from the submission instructions...

**Reference issues/PRs** #337 #546 **Types of changes** - [ ] Bug fix (non-breaking change which fixes an issue) - [x] New feature (non-breaking change which adds functionality) - [ ]...

#### Description The [STUMPY](https://stumpy.readthedocs.io/en/latest/index.html) library contains high-performance (using Numba and/or Dask) code for calculating the so-called "matrix profile" of a time series. There is some overlap in both methods and...

discussion

Currently, the logic in https://github.com/giotto-ai/giotto-tda/blob/d08900294467417a1ddc29a19d8c353583c567f1/gtda/images/filtrations.py#L1166-L1169 assumes a fair amount form the metric used. In particular, it assumes that the metric has a counterpart in 1D and that a cubical "container"...

enhancement

For far away in the future, it would be nice to be able to specifiy details about the shape to a `check_array` of our own. _Originally posted by @gtauzin in...

#469 and #483 have introduced the possibility of using GUDHI's edge collapse as a preprocessing step for ripser. It would be nice to have this entry in the glossary if...

documentation
enhancement

#### Description A novelty of scikit-learn 0.22 is the introduction of the [KNeighborsTransformer](https://scikit-learn.org/stable/modules/generated/sklearn.neighbors.KNeighborsTransformer.html), which implements in the case of single point clouds (rather than collections thereof) exactly what we implemented...

enhancement
discussion

#### Description It is worth discussion whether we would like and want to always ensure that our MapperPipelines will be able to take pandas dataframes as inputs directly. There would...

enhancement
discussion
mapper

> It seems that the input is systematically copied and returned. In `sklearn`, there is a ``copy`` boolean argument to the `check_array` function. This is especially useful if one of...

enhancement