开篇寄语

同样都是文化载体,与新年音响、唱片市场的沉寂形成鲜明反差的是,书市的异常火爆,特别是文化类书籍。从易中天的《品三国》到于丹的《论语心得》,无一不叫红于市场。细细分析其原因,无非是连年文化庸俗化后形成     

开篇寄语

无论高清之路多么曲折,它部将会开启影音的崭新天地。当欣赏到大画面全高清的影像与无损的多声道声音效果时,我们每个人部会为之心动。很长一段时间以来,我已一次又一次被其震撼、被其感染,真希望高清早一些来到我们大众身边,不再受制于节目源、播放设备等的种种不健全的影响。为何到目前为止,     

Editorial

Mobile pedestrian navigation systems are one of the most popular Location-Based Services. In the era of Web 2.0, current mobile navigation systems often suffer from the following problems: the lack of social navigation support (utilising other people's experiences) and the challenge of making user-generated content (UGC) useful. In this article, some collective intelligence-based route recommendation methods are designed to address these problems. The proposed methods can make use of UGC (reflecting other users’ navigation experiences), and provide users with the least complex and the length-complexity-optimised (LCO) routes. Some simulations using the street network of the first district of Vienna (Austria) are designed to evaluate the proposed methods. The results show that compared to the shortest route, the collective intelligence-based routes (i.e. the least complex and the LCO routes) have a significant improvement of the route quality (with lower complexity ratings), thereby more effectively supporting users’ navigation tasks (more chances of reaching the destination, fewer mistakes made and shorter distance travelled).