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, Massachusetts Institute of Technology, Massachusetts, On August 11, 2008
What is VMWare Fusion?
VMWare Fusion is a Mac software that will let you run multiple operating systems on your Mac computer such as Windows, Solaris, and Linux.
Applications in location-based services rely on the efficient management of large scale moving objects, and one of the most important operations is real-time continuous query over moving objects, such as monitoring the objects of a certain region. In order to satisfy the high throughput and handle real-time updates and queries, it is a good choice to introduce multi-core parallel processing and managing spatial indices in main memory. In this paper, we propose a new scheme of processing continuous query on a novel spatial index based on uniform grid which is proved to be a good indexing scheme in main memory. The novelty of our index is to manage query region as the partition in the spatial index, which unified the index updating and query processing. Our experiments indicate that this sophisticated approach has better performance especially when the query is rather stationary.
, Massachusetts Institute of Technology, Massachusetts, On July 31, 2008
Let’s see if this sounds familiar: Rome started as a small city-state, but grew to conquer the European continent and beyond. Internally, the city of seven hills suffered from several major economic crises, civil war and revolts. These problems were quelled by a focus on near constant external war. Eventually Rome not only ceased being a free republic where rulers were elected and the people respected, but also developed a two-party political system, dominated by populist rulers who sought to redistribute wealth and subsidize agriculture. This got to the point where the people would vote themselves bread and circuses. Indeed, their happiness and peacefulness depended on these government benefits.
, Massachusetts Institute of Technology, Massachusetts, On August 3, 2008