The Top-k Skyline Query in Pervasive Computing Environments

In pervasive computing environments, more and more applications or platforms based on mobile phone and PDA emerged. People could get what they want from these platforms anywhere. Top-k and skyline query are two methods to satisfy user's preferences. In many situations, we need to combine the two querying technologies to satisfy the user's preferences, which is called top-k skyline query. Based on a given pervasive computing scenario, we formulate a theoretical model for top-k skyline query, describe an algorithm that proceeds the skyline and top-k query synchronously. It shows better performance in experiment than algorithms proposed in [3].