Semanlink - [2106.04612] Neural Extractive Search

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how to extend a
search paradigm we call “**extractive search**” with
neural similarity techniques.

> some information needs require extracting
and aggregating sub-sentence information
(words, phrases, or entities) from multiple documents
(e.g. a list of all the risk factors for a specific
disease and their number of mentions, or a comprehensive
table of startups and CEOs).

> extractive search combines
document selection with information extraction. **The query is extended with capture slots**:
these are **search terms that act as variables, whose
values should be extracted**.
> The user
is then presented with the matched documents, each
annotated with the corresponding captured spans,
as well as aggregate information over the captured
spans

Conclusion :

> We presented a system for neural extractive search.
While we found our system to be useful for scientific
search, it also has clear limitations and areas
for improvement, both in terms of accuracy (only
72.2% of the returned results are relevant, both the
alignment and similarity models generalize well to
some relations but not to others), and in terms of
scale

[Video of demo](https://www.youtube.com/watch?v=TtqWi2GgB5A&t=1832s)

Σχετικά με το έγγραφο αυτό

sl:arxiv_author :
sl:arxiv_firstAuthor : Shauli Ravfogel
sl:arxiv_num : 2106.04612
sl:arxiv_published : 2021-06-08T18:03:31Z
sl:arxiv_summary : Domain experts often need to extract structured information from large corpora. We advocate for a search paradigm called ``extractive search'', in which a search query is enriched with capture-slots, to allow for such rapid extraction. Such an extractive search system can be built around syntactic structures, resulting in high-precision, low-recall results. We show how the recall can be improved using neural retrieval and alignment. The goals of this paper are to concisely introduce the extractive-search paradigm; and to demonstrate a prototype neural retrieval system for extractive search and its benefits and potential. Our prototype is available at \url{https://spike.neural-sim.apps.allenai.org/} and a video demonstration is available at \url{https://vimeo.com/559586687}.@en
sl:arxiv_title : Neural Extractive Search@en
sl:arxiv_updated : 2021-06-08T18:03:31Z
sl:bookmarkOf : https://arxiv.org/abs/2106.04612
sl:creationDate : 2021-06-23
sl:creationTime : 2021-06-23T01:47:35Z

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Bookmark of: https://arxiv.org/abs/2106.04612

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2022-09-01 About