End-to-End Open Vocabulary Keyword Search

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26230%2F21%3APU142970" target="_blank" >RIV/00216305:26230/21:PU142970 - isvavai.cz</a>

Result on the web

<a href="https://www.isca-speech.org/archive/interspeech_2021/yusuf21_interspeech.html" target="_blank" >https://www.isca-speech.org/archive/interspeech_2021/yusuf21_interspeech.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21437/Interspeech.2021-1399" target="_blank" >10.21437/Interspeech.2021-1399</a>

Result language

angličtina

Original language name

End-to-End Open Vocabulary Keyword Search

Original language description

Recently, neural approaches to spoken content retrieval have become popular. However, they tend to be restricted in their vocabulary or in their ability to deal with imbalanced test settings. These restrictions limit their applicability in keyword search, where the set of queries is not known beforehand, and where the system should return not just whether an utterance contains a query but the exact location of any such occurrences. In this work, we propose a model directly optimized for keyword search. The model takes a query and an utterance as input and returns a sequence of probabilities for each frame of the utterance of the query having occurred in that frame. Experiments show that the proposed model not only outperforms similar end-to-end models on a task where the ratio of positive and negative trials is artificially balanced, but it is also able to deal with the far more challenging task of keyword search with its inherent imbalance. Furthermore, using our system to rescore the outputs an LVCSR-based keyword search system leads to significant improvements on the latter.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings Interspeech 2021

ISBN

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ISSN

1990-9772

e-ISSN

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Number of pages

5

Pages from-to

4388-4392

Publisher name

International Speech Communication Association

Place of publication

Brno

Event location

Brno

Event date

Aug 30, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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