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[mypy] Add/fix type annotations for similarity search in machine learning #4088

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Merged
merged 4 commits into from
Jan 22, 2021
Merged

[mypy] Add/fix type annotations for similarity search in machine learning #4088

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[mypy] Add/fix type annotations for similarity search in machine lear…
SteveKimSR Jan 1, 2021
ba94f11
fix annotation
SteveKimSR Jan 6, 2021
68fe173
fix annotation (Union)
SteveKimSR Jan 6, 2021
e95bb27
isort
SteveKimSR Jan 6, 2021
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5 changes: 4 additions & 1 deletion machine_learning/similarity_search.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
2. distance between the vector and the nearest vector (float)
"""
import math
from typing import List, Union

import numpy as np

Expand All @@ -30,7 +31,9 @@ def euclidean(input_a: np.ndarray, input_b: np.ndarray) -> float:
return math.sqrt(sum(pow(a - b, 2) for a, b in zip(input_a, input_b)))


def similarity_search(dataset: np.ndarray, value_array: np.ndarray) -> list:
def similarity_search(
dataset: np.ndarray, value_array: np.ndarray
) -> List[List[Union[List[float], float]]]:
"""
:param dataset: Set containing the vectors. Should be ndarray.
:param value_array: vector/vectors we want to know the nearest vector from dataset.
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