Out of vocabulary queries for word graph-based keyword spotting
[EN] In this master thesis several approaches are presented to support out of vocabulary queries in a Word Graph (WG)-based Keyword Spotting (KWS) application for handwritten text lines. Generally, KWS assigns a score that estimates how likely is that a given keyword is present in a certain line ima...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/53360 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/53360 |
| Access Level: | acceso abierto |
| Palabra clave: | Detección de palabras clave Reconocimiento automático de escritura Recuperación de la información Word graphs Filler Keyword Spotting Handwritting text recognition Information retrieval Smoothing LENGUAJES Y SISTEMAS INFORMATICOS Máster Universitario en Inteligencia Artificial, Reconocimiento de Formas e Imagen Digital-Màster Universitari en Intel·ligència Artificial, Reconeixement de Formes i Imatge Digital |
| Sumario: | [EN] In this master thesis several approaches are presented to support out of vocabulary queries in a Word Graph (WG)-based Keyword Spotting (KWS) application for handwritten text lines. Generally, KWS assigns a score that estimates how likely is that a given keyword is present in a certain line image. WGbased KWS offers very fast search times but assumes a closed vocabulary and assigns null scores to any word not included in such vocabulary. This work tries to provide to the WG-based KWS the flexibility of non-restricted searches and the speed achieved by the usage of WG. |
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