Xiaopeng Bai

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This study was designed to assess the changes in nonlinear properties of heart rate (HR) variability (HRV) during the menstrual cycle by means of complexity measures, including sample entropy (SampEn) and correlation dimension (CD), and explore probable physiological interpretations for them. In 16 healthy women (mean age: 23.8 +/- 2.7 yr), complexity(More)
DNA sequencing by synthesis (SBS) on a solid surface during polymerase reaction offers a paradigm to decipher DNA sequences. We report here the construction of such a DNA sequencing system using molecular engineering approaches. In this approach, four nucleotides (A, C, G, T) are modified as reversible terminators by attaching a cleavable fluorophore to the(More)
DNA sequencing by synthesis on a solid surface offers new paradigms to overcome limitations of electrophoresis-based sequencing methods. Here we report DNA sequencing by synthesis using photocleavable (PC) fluorescent nucleotides [dUTP-PC-4,4-difluoro-4-bora-3 alpha,4 alpha-diaza-s-indacene (Bodipy)-FL-510, dCTP-PC-Bodipy-650, and(More)
We report here the design, synthesis and evaluation of a novel photocleavable (PC) biotinylated nucleotide analog, dUTP-PC-Biotin, for DNA polymerase extension reaction to isolate DNA products for mass spectrometry (MS) analysis. This nucleotide analog has a biotin moiety attached to the 5-position of 2'-deoxyribouridine 5'-triphosphate via a photocleavable(More)
Metaphor processing has been a heated topic in NLP. Cognitive properties of a word are important in metaphor understanding and generation. But data collected automatically tend to be reduced in both quantity and quality. This paper introduces CogBank a database of Chinese concepts and their associated cogni-tive properties. The database was constructed(More)
In this paper, we compare the use of argument structure in Chinese verb sense taxonomy (CVT), which is a hierarchy structure constituted by verb lexical classes, and Chinese Propbank (CPB). The major difference of the usage of argument structure between these two independent resources is: CVT uses argument structure to cluster verb senses, while CPB uses it(More)
Either word sense classification or word sense clustering can not avoid this problem: what features people can get from word meaning that can be used as the tools employed for producing word sense ontology. In this paper, we present a lexical semantic-syntactic model to define and subcategorize a noun class—attribute noun class, by acquiring syntactic(More)
In this paper, we present a Chinese lexical taxonomy, a hierarchically organization of Chinese lexical classes of nouns, verbs and adjectives. We first describe the structure of this taxonomy and then present the methods we used to build it. The distinctive characteristics of this lexical taxonomy are: 1) we use definition frame to describe each lexical(More)
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