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TPU index is a package for fast similarity search over large collections of high dimension vectors on Google Cloud TPUs

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TPU Index

TPU Index is a package for fast similarity search over large collections of high dimension vectors on TPUs. This package was built to support our project that we developed for https://tfworld.devpost.com/.

Link to our project: https://devpost.com/software/naturallanguagerecommendations

Installation

!pip install tpu-index

Basic usage

from tpu_index import TPUIndex

index = TPUIndex(num_tpu_cores=8)
index.create_index(vectors)  # vectors = numpy array, shape == [None, None]

...
D, I = index.search(xq, distance_metric='cosine', top_k=5)

ToDo:

  • Add more distance metrics
  • Optional GPU support

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