Qiang Ma

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With the development of positioning technologies and the boosting deployment of inexpensive location-aware sensors, large volumes of trajectory data have emerged. However, efficient and scalable query processing over trajectory data remains a big challenge. We explore a new approach to this target in this paper, presenting a new framework for query(More)
Storage and utilization of web data has become a big challenge to data management community. Though many commercial and academic tools emerge, the structure, content , and user behavior of Chinese Web is not fully studied. We are working on building a Chinese Web Infrastructure (CWI) for support of such research. In this paper, a graph data model used in(More)
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