page_type: reference description: Class that performs Bert question answering on text.

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tflite_support.task.text.BertQuestionAnswerer

<!-- Insert buttons and diff --> <table class="tfo-notebook-buttons tfo-api nocontent" align="left"> <td> <a target="_blank" href="https://github.com/tensorflow/tflite-support/blob/v0.4.4/tensorflow_lite_support/python/task/text/bert_question_answerer.py#L32-L103"> </a> </td> </table>

Class that performs Bert question answering on text.

<pre class="devsite-click-to-copy prettyprint lang-py tfo-signature-link"> <code>tflite_support.task.text.BertQuestionAnswerer( options: <a href="../../../tflite_support/task/text/BertQuestionAnswererOptions"><code>tflite_support.task.text.BertQuestionAnswererOptions</code></a>, cpp_bert_question_answerer: _CppBertQuestionAnswerer ) -> None </code></pre> <!-- Placeholder for "Used in" --> <!-- Tabular view --> <table class="responsive fixed orange"> <colgroup><col width="214px"><col></colgroup> <tr><th colspan="2"><h2 class="add-link">Attributes</h2></th></tr> <tr> <td> `options`<a id="options"></a> </td> <td> </td> </tr> </table>

Methods

<h3 id="answer"><code>answer</code></h3>

<a target="_blank" class="external" href="https://github.com/tensorflow/tflite-support/blob/v0.4.4/tensorflow_lite_support/python/task/text/bert_question_answerer.py#L79-L99">View source</a>

<pre class="devsite-click-to-copy prettyprint lang-py tfo-signature-link"> <code>answer( context: str, question: str ) -> <a href="../../../tflite_support/task/processor/QuestionAnswererResult"><code>tflite_support.task.processor.QuestionAnswererResult</code></a> </code></pre>

Answers question based on the context.

Could be empty if no answer was found from the given context.

<!-- Tabular view --> <table class="responsive fixed orange"> <colgroup><col width="214px"><col></colgroup> <tr><th colspan="2">Args</th></tr> <tr> <td> `context` </td> <td> Context the question bases on. </td> </tr><tr> <td> `question` </td> <td> Question to ask. </td> </tr> </table> <!-- Tabular view --> <table class="responsive fixed orange"> <colgroup><col width="214px"><col></colgroup> <tr><th colspan="2">Returns</th></tr> <tr class="alt"> <td colspan="2"> Question answerer result. </td> </tr> </table> <!-- Tabular view --> <table class="responsive fixed orange"> <colgroup><col width="214px"><col></colgroup> <tr><th colspan="2">Raises</th></tr> <tr> <td> `ValueError` </td> <td> If any of the input arguments is invalid. </td> </tr><tr> <td> `RuntimeError` </td> <td> If failed to calculate the embedding vector. </td> </tr> </table> <h3 id="create_from_file"><code>create_from_file</code></h3>

<a target="_blank" class="external" href="https://github.com/tensorflow/tflite-support/blob/v0.4.4/tensorflow_lite_support/python/task/text/bert_question_answerer.py#L42-L58">View source</a>

<pre class="devsite-click-to-copy prettyprint lang-py tfo-signature-link"> <code>@classmethod</code> <code>create_from_file( file_path: str ) -> 'BertQuestionAnswerer' </code></pre>

Creates the BertQuestionAnswerer object from a TensorFlow Lite model.

<!-- Tabular view --> <table class="responsive fixed orange"> <colgroup><col width="214px"><col></colgroup> <tr><th colspan="2">Args</th></tr> <tr> <td> `file_path` </td> <td> Path to the model. </td> </tr> </table> <!-- Tabular view --> <table class="responsive fixed orange"> <colgroup><col width="214px"><col></colgroup> <tr><th colspan="2">Returns</th></tr> <tr class="alt"> <td colspan="2"> `BertQuestionAnswerer` object that's created from the model file. </td> </tr> </table> <!-- Tabular view --> <table class="responsive fixed orange"> <colgroup><col width="214px"><col></colgroup> <tr><th colspan="2">Raises</th></tr> <tr> <td> `ValueError` </td> <td> If failed to create `BertQuestionAnswerer` object from the provided file such as invalid file. </td> </tr><tr> <td> `RuntimeError` </td> <td> If other types of error occurred. </td> </tr> </table> <h3 id="create_from_options"><code>create_from_options</code></h3>

<a target="_blank" class="external" href="https://github.com/tensorflow/tflite-support/blob/v0.4.4/tensorflow_lite_support/python/task/text/bert_question_answerer.py#L60-L77">View source</a>

<pre class="devsite-click-to-copy prettyprint lang-py tfo-signature-link"> <code>@classmethod</code> <code>create_from_options( options: <a href="../../../tflite_support/task/text/BertQuestionAnswererOptions"><code>tflite_support.task.text.BertQuestionAnswererOptions</code></a> ) -> 'BertQuestionAnswerer' </code></pre>

Creates the BertQuestionAnswerer object from the options.

<!-- Tabular view --> <table class="responsive fixed orange"> <colgroup><col width="214px"><col></colgroup> <tr><th colspan="2">Args</th></tr> <tr> <td> `options` </td> <td> Options for the Bert question answerer task. </td> </tr> </table> <!-- Tabular view --> <table class="responsive fixed orange"> <colgroup><col width="214px"><col></colgroup> <tr><th colspan="2">Returns</th></tr> <tr class="alt"> <td colspan="2"> `BertQuestionAnswerer` object that's created from `options`. </td> </tr> </table> <!-- Tabular view --> <table class="responsive fixed orange"> <colgroup><col width="214px"><col></colgroup> <tr><th colspan="2">Raises</th></tr> <tr> <td> `ValueError` </td> <td> If failed to create `BertQuestionAnswerer` object from `BertQuestionAnswererOptions` such as missing the model. </td> </tr><tr> <td> `RuntimeError` </td> <td> If other types of error occurred. </td> </tr> </table>