17 resultados para Median Voter Hypothesis
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- ABACUS. Repositorio de Producción Científica - Universidad Europea (1)
- Aberdeen University (2)
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- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
- Adam Mickiewicz University Repository (1)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (4)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
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- Aston University Research Archive (17)
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- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (13)
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- Biblioteca Digital Loyola - Universidad de Deusto (1)
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- BORIS: Bern Open Repository and Information System - Berna - Suiça (93)
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- Bulgarian Digital Mathematics Library at IMI-BAS (3)
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- Cambridge University Engineering Department Publications Database (17)
- CentAUR: Central Archive University of Reading - UK (40)
- Central European University - Research Support Scheme (1)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (8)
- Cochin University of Science & Technology (CUSAT), India (11)
- Collection Of Biostatistics Research Archive (2)
- Comissão Econômica para a América Latina e o Caribe (CEPAL) (1)
- Dalarna University College Electronic Archive (7)
- Deakin Research Online - Australia (68)
- Department of Computer Science E-Repository - King's College London, Strand, London (2)
- DI-fusion - The institutional repository of Université Libre de Bruxelles (1)
- Digital Archives@Colby (2)
- Digital Commons - Montana Tech (1)
- Digital Commons at Florida International University (7)
- DigitalCommons - The University of Maine Research (1)
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- DigitalCommons@University of Nebraska - Lincoln (2)
- Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (3)
- DRUM (Digital Repository at the University of Maryland) (2)
- Duke University (8)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (5)
- eScholarship Repository - University of California (1)
- FUNDAJ - Fundação Joaquim Nabuco (1)
- Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (8)
- Helda - Digital Repository of University of Helsinki (8)
- Indian Institute of Science - Bangalore - Índia (16)
- Instituto Gulbenkian de Ciência (1)
- Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (1)
- Massachusetts Institute of Technology (2)
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- Repositório Institucional da Universidade de Aveiro - Portugal (1)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (69)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (4)
- South Carolina State Documents Depository (1)
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- Universidad del Rosario, Colombia (2)
- Universidad Politécnica de Madrid (4)
- Universidade de Lisboa - Repositório Aberto (2)
- Universidade Federal do Pará (2)
- Universidade Metodista de São Paulo (2)
- Universidade Técnica de Lisboa (2)
- Université de Lausanne, Switzerland (4)
- Université de Montréal (1)
- Université de Montréal, Canada (13)
- University of Canberra Research Repository - Australia (1)
- University of Connecticut - USA (8)
- University of Michigan (34)
- University of Queensland eSpace - Australia (29)
- University of Southampton, United Kingdom (2)
- University of Washington (5)
- WestminsterResearch - UK (2)
Resumo:
The task in keyword spotting (KWS) is to hypothesise times at which any of a set of key terms occurs in audio. An important aspect of such systems are the scores assigned to these hypotheses, the accuracy of which have a significant impact on performance. Estimating these scores may be formulated as a confidence estimation problem, where a measure of confidence is assigned to each key term hypothesis. In this work, a set of discriminative features is defined, and combined using a conditional random field (CRF) model for improved confidence estimation. An extension to this model to directly address the problem of score normalisation across key terms is also introduced. The implicit score normalisation which results from applying this approach to separate systems in a hybrid configuration yields further benefits. Results are presented which show notable improvements in KWS performance using the techniques presented in this work. © 2013 IEEE.