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Angular-aware phi reparameterization for improved Rips geometry #11

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Angular-aware phi reparameterization for improved Rips geometry #11

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8 changes: 7 additions & 1 deletion Non_local_Jet_Classification_Tanmay_Bakshi/coordinates_extract.py
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Original file line number Diff line number Diff line change
Expand Up @@ -47,7 +47,12 @@ def _extract_coordinates(self):
extracted_columns = []
for column in self.columns:
if column in data:
extracted_columns.append(ak.to_numpy(data[column]))
if column == 'phi':
phi = ak.to_numpy(data['phi'])
extracted_columns.append(np.sin(phi))
extracted_columns.append(np.cos(phi))
else:
extracted_columns.append(ak.to_numpy(data[column]))

# Stack the extracted columns along the last axis
if extracted_columns:
Expand Down Expand Up @@ -79,6 +84,7 @@ def extract_simplices(simplex_tree):
simplices[k - 1][frozenset(simplex)] = len(simplices[k - 1])
return simplices

coord = (coord - coord.mean(axis=0)) / (coord.std(axis=0) + 1e-8)
rips_complex = gd.RipsComplex(points=coord, sparse=sparsity)
st = rips_complex.create_simplex_tree(max_dimension=max_dimension)
_ = st.prune_above_filtration(filtration_val)
Expand Down