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BACKGROUND Although the prevalence of congenital malformations is high in China, little information is available on the Hainan Province. METHODS Data used in this study were collected from 2000 to 2010 by monitoring newborns (including both live births and stillbirths) in the Hainan Province. Comparison analyses were conducted by performing χ(2) tests. (More)
Hepatitis B virus (HBV) infection is highly endemic in China and it threats human health seriously. The hepatitis B surface antigen (HBsAg) prevalence among women of childbearing age plays an important role in mother to child transmission of HBV, as 30% ~50% of chronic carriers can be attributed to maternal-infantile transmission. However, there are few(More)
In this paper, we propose an unsupervised phrase-based data selection model, address the problem of selecting no-domain-specific language model (LM) training data to build adapted LM for use. In spoken language translation (SLT) system, we aim at finding the LM training sentences which are similar to the translation task. Compared with the traditional(More)
In this paper, we first review several approaches of feature extraction algorithms in robust speech recognition, e.g. Mel frequency cepstral coefficients (MFCC) [1], perceptual linear prediction (PLP) [2] and power-normalized cepstral coefficients (PNCC) [3]. A new feature extraction algorithm for noise robust speech recognition is proposed, in which(More)
Hierarchical phrase-based (HPB) translation has been introduced to speech-to-speech (S2S) translation system on mobile terminals, such as smartphones. However, it suffers from the explosive growth in the number of rules along with the increment in decoding time for S2S translation system when the memory and decoding speed is restricted. In this paper, we(More)
BACKGROUND Evidence shows exposure to ambient air pollution during pregnancy was associated with an increased risk of adverse birth outcomes, such as preterm birth, low birth weight and intrauterine growth retardation, but the results for birth defects have been inconsistent. METHODS The data on birth defects was collected from the Birth Defects(More)
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