Nguyen Thanh Tam

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As the number of publicly-available datasets are likely to grow, the demand of establishing the links between these datasets is also getting higher and higher. For creating such links we need to match their schemas. Moreover, for using these datasets in meaningful ways, one often needs to match not only two, but several schemas. This matching process(More)
OBJECTIVE To estimate the proportion of participants in clinical trials who understand different components of informed consent. METHODS Relevant studies were identified by a systematic review of PubMed, Scopus and Google Scholar and by manually reviewing reference lists for publications up to October 2013. A meta-analysis of study results was performed(More)
BACKGROUND Cells within breast cancer stem cell populations have been confirmed to have a CD44(+)CD24(-) phenotype. Strong expression of CD44 plays a critical role in numerous types of human cancers. CD44 is involved in cell differentiation, adhesion, and metastasis of cancer cells. METHODS In this study, we reduced CD44 expression in CD44(+)CD24(-)(More)
As the volumes of AI problems involving human knowledge are likely to soar, crowdsourcing has become essential in a wide range of world-wide-web applications. One of the biggest challenges of crowdsourcing is aggregating the answers collected from crowd workers; and thus, many aggregate techniques have been proposed. However, given a new application, it is(More)
—Schema matching is the process of establishing correspondences between the attributes of database schemas for data integration purposes. Although several automatic schema matching tools have been developed, their results are often incomplete or erroneous. To obtain a correct set of correspondences, a human expert is usually required to validate the(More)
It is known that umbilical cord blood (UCB) is a rich source of stem cells with practical and ethical advantages. Three important types of stem cells which can be harvested from umbilical cord blood and used in disease treatment are hematopoietic stem cells (HSCs), mesenchymal stem cells (MSCs) and endothelial progenitor cells (EPCs). Since these stem cells(More)
As the number of schema repositories grows rapidly and several web-based platforms exist to support publishing schemas, schema reuse becomes a new trend. Schema reuse is a methodology that allows users to create new schemas by copying and adapting existing ones. This methodology supports to reduce not only the effort of designing new schemas but also the(More)
—Schema matching supports data integration by establishing correspondences between the attributes of independently designed database schemas. In recent years, various tools for automatic pair-wise matching of schemas have been developed. Since the matching process is inherently uncertain, the correspondences generated by such tools are often validated by a(More)
PURPOSE The purpose of the present study was to estimate the prevalence of probable mental health problems in an epidemiologic study of Vietnamese adolescents. A secondary aim was to examine the correlates of probable mental health caseness. METHODS Interviewers visited 1,914 households that were randomly selected to participate in a multi-agency study of(More)