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With the growing popularity of mobile computing and wireless communications, managing the continuously changing information of the moving objects is becoming feasible, especially in LBS application which is characterized by a large number of moving objects and a large number of continuous queries. In this paper, we focus on continuous k-nearest neighbor (CkNN for short) query and propose a query method...
This paper proposes a novel distributed courseware lookup method in pervasive learning environments. This method is based on the concepts of social relationship overlay and pheromone-based ant-like query routing. It exploits an ant-like query routing mechanism, which views query messages as artificial ants, and utilizes pheromone as routing hints that direct query messages to nodes owning more courseware...
It's important to set up a basic database which can support national wide prediction system of specialty setting. With the challenges of massive and multi-source data, the key question we must solve is how to satisfy the users' complex query demands in different levels and different angles. Based on the data warehouse theory and technology, we have taken an in-depth study of the data modeling of the...
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