简介:Expo2010ShanghaiChinawasasuccessful,splendid,andunforgettableevent,leavinguswithvaluableexperi-ences.ThevisitorflowpatternoftheExpoisinvestigatedinthispaper.TheHurstexponent,themeanvalue,andthestandarddeviationofvisitorvolumeindicatethatthevisitorflowisfractalwithlong-termstabilityandcorrelationaswellasobviousfluctuationinashortperiod.Thenthetimeseriesofvisitorvolumeisconvertedintoacomplexnetworkbyusingthevisibilityalgorithm.Itcanbeinferredfromthetopologicalpropertiesofthevisibilitygraphthatthenetworkisscale-free,small-world,andhierarchicallyconstructed,confirmingthatthetimeseriesarefractalandacloserelationshipexistsamongthevisitorvolumesondifferentdays.Furthermore,itisinevitablethatwillbesomeextremevisitorvolumesintheoriginalvisitorflow,andtheseextremepointsmayappearinagrouptoagreatextent.Allthesepropertiesarecloselyrelatedtothefeatureofthecomplexnetwork.Finally,therevisedlinearregressionisperformedtoforecastthenext-dayvisitorvolumebasedontheprevious10-daydata.