Xialin Zhang

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Semantic interoperability of mineral exploration geodata is a long-term concern in mining projects. Inconsistent conceptual schemas and heterogeneous professional terms among various geodata sources in a mining project often hinder their efficient use and/or reuse. Our study of a controlled vocabulary focuses on interoperability of mineral exploration(More)
Compositing of borehole assay intervals based on economic aspects is a primary step when the crosssectional method is applied in orebody modelling and mineral resources estimation. The compositing is important because the resulting ore composites eventually determine the outlines of orebody models. However, numerous boreholes and borehole intervals make ore(More)
A new ore-grade estimation method based on a genetic algorithm in consideration of spatial correlation like geo-statistics, is proposed in this paper. The main advantage of this method is in that it is capable of simultaneous overcoming both the disadvantage of geo-statistics, which is mainly caused by the single and immobile mapping relationship between(More)
Due to the high mortality associated with heart disease, there is an urgent demand for advanced detection of abnormal heart beats. The use of dynamic electrocardiogram (DCG) provides a useful indicator of heart condition from long-term monitoring techniques commonly used in the clinic. However, accurately distinguishing sparse abnormal heart beats from(More)
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