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Adds random_state option to coupled decomposition #71

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Merged
JacksonLChin merged 1 commit into from
Feb 19, 2025
+2 −2
Merged

Adds random_state option to coupled decomposition #71

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4 changes: 2 additions & 2 deletions tensorpack/coupled.py
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Original file line number Diff line number Diff line change
Expand Up @@ -58,7 +58,7 @@ def __init__(self, data: xr.Dataset, rank):
self.unfold = {mode: xr_unfold(data, mode) for mode in self.modes}


def initialize(self, method="svd", verbose=False):
def initialize(self, method="svd", verbose=False, random_state=215):
""" Initialize each mode factor matrix """
# wipe off old values
self.x["_Weight_"][:] = np.ones_like(self.x["_Weight_"])
Expand Down Expand Up @@ -86,7 +86,7 @@ def initialize(self, method="svd", verbose=False):
if method == "svd":
self.x["_" + mmode][:, :ncol] = np.linalg.svd(unfold)[0][:,:ncol]
else: # randomized_svd
self.x["_" + mmode][:, :ncol] = randomized_svd(unfold, ncol, random_state=2)[0]
self.x["_" + mmode][:, :ncol] = randomized_svd(unfold, ncol, random_state=random_state)[0]
if verbose:
print(f"{mmode} SVD initialization: done in {time.time() - start_time}")
if method == "nmf":
Expand Down
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