tensorflow / tensorflow/text

Feature request: add layer for darts lookup table?

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Dominant language
C++
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Avg merge
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Merged PRs (30d)
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Description

In some cases, it can be more efficient and memory-efficient than hashtable in tensorflow.

It should be great if darts lookup table has following methods

  • build:
    • Arguments: strings tensors(key), int tensors(values), and default value
  • common prefix search:
    • Arguments: string tensors
    • Returns: ragged tensor for searched results, and results' value
  • exact match search:
    • Arguments: string tensors
    • Returns: searched value, or default value for unknown strings

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First steps

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Research direction

Start with the issue's proposed build, common-prefix search, and exact-match search APIs, including their tensor inputs and outputs. Define the implementation scope and validation needed for a TensorFlow Text layer, with done meaning the three requested operations and default-value behavior are specified and supported.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, tensorflow
Domain
backend-api-design, machine-learning
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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