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Short-text messages such as tweets are being created and shared at an unprecedented rate. Tweets, in their raw form, while being informative, can also be overwhelming. For both end-users and data analysts, it is a nightmare to plow through millions of tweets which contain enormous amount of noise and redundancy. In this paper, we propose a novel continuous summarization framework called Sumblr to...
In the Internet of Things, smart things communicate with each other, and sensed data are aggregated and queried for satisfying certain requests of end-users. Target tracking is a typical and important application of wireless sensor networks. Considering the energy efficiency and the object tracking accuracy, we propose a novel object tracking method based on a pre-defined itinerary. Energy can be...
In the Internet of Things, smart things communicate with each other, and sensed data are aggregated and queried for satisfying certain requests of end-users. Wireless sensor networks (WSN) is a key enabling technique for achieving the vision of the Internet of Things. In real applications of WSN, such as environmental monitoring and vehicle tracking, they may require to launch spatial queries for...
With the establishment of marine monitoring network with an all-round of marine, land, air and space, the quality of marine data showed a trend of exponential growth from the GB, TB to PB. How to achieve high scalability, high reliability, high security and low-cost storage of massive marine data has become one of the key issues restricting the development of “digital ocean” and applications of marine...
Web based data integration systems run in an unpredictable and dynamic environment, which makes the traditional query processing approach inapplicable. Problems necessitating AQP (Adaptive Query Processing) techniques include: (1) statistics may be insufficient; (2) statistics may be imprecise; (3) unavailable data sources may make query results incomplete. In this paper, we present a novel data integration...
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