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This paper presents an early study on building Vietnamese large vocabulary continuous speech recognition with concentration on choosing type of units and feature set. Our experiments were done using the HTK Toolkit and VOV broadcast corpus. The results show that the recognizer with mixture units achieved better performance than recognizers with(More)
Respiratory syncytial virus (RSV) is an important cause of acute respiratory disease in infants, immunocompromised subjects and the elderly. However, it is unclear why most primary RSV infections are associated with relatively mild symptoms, whereas some result in severe lower respiratory tract infections and bronchiolitis. Since RSV hospitalization has(More)
UNLABELLED Measles virus (MV) is being considered for global eradication, which would likely reduce compliance with MV vaccination. As a result, children will grow up without MV-specific immunity, creating a potential niche for closely related animal morbilliviruses such as canine distemper virus (CDV). Natural CDV infection causing clinical signs has never(More)
Paramyxoviruses, including measles virus (MV), human metapneumovirus (HMPV), human respiratory syncytial virus (HRSV) and canine distemper virus (CDV), are transmitted via the respiratory route. Despite their close phylogenetic relationship, the pathogenesis of these viruses is very different. To study viral tropism and replication ex vivo, a protocol for(More)
UNLABELLED Although live-attenuated measles virus (MV) vaccines have been used successfully for over 50 years, the target cells that sustain virus replication in vivo are still unknown. We generated a reverse genetics system for the live-attenuated MV vaccine strain Edmonston-Zagreb (EZ), allowing recovery of recombinant (r)MV(EZ). Three recombinant viruses(More)
BACKGROUND Inactivated paramyxovirus vaccines have been associated with hypersensitivity responses upon challenge infection. For measles and canine distemper virus (CDV) safe and effective live-attenuated virus vaccines are available, but for human respiratory syncytial virus and human metapneumovirus development of such vaccines has proven difficult. We(More)
It remains largely unknown which factors determine the clinical outcome of human metapneumovirus (HMPV) infections. The aim of the present study was to analyse whether exposure to bacterial pathogens can influence HMPV infections. From 57 children, serum samples and colonization data for Haemophilus influenzae, Moraxella catarrhalis, Staphylococcus aureus(More)
The current paper presents preliminary work towards the integration of the Fujisaki model into the VnVoice Vietnamese TTS system, based on a set of rules to control the F0 contour. A speech corpus consisting of 20 sentences was compiled. Each of the sentences can have various meanings depending on the tone associated with a monosyllabic keyword which it(More)
User modeling helps information systems know about their user behavior to provide better services. An educational social network, called SoNITS, has been developed for IT students. This paper introduces an ontology-based student model that is used in SoNITS. Issues about constructing and managing student models are discussed. Applications that utilize these(More)