*

*

GPS*

1. 3. 2. 4.

GPS

GPS

*

20081201012GPS-0

*

*

*

*

ITS*

1/6*

10,000 rows20 columns1,000,000,000 rows3000 columns

2/6*

3/6*

4/6*

5/6*

6/6*

2008

HOVHOV*

/77461111630

*

1/2*

2/2*

1998 2008BBS2010HOVHOV

*

AliVenigalla2011GPSHOVHOVHOVHOVQianZhang2011123123ZhangLevinson201027

GPS*

2007SuperGISGeoDa2006GPSGPS2005GPSVDGPS

1/6*

2/6*

3/6*

4/6*

5/6*

6/6*

*

*

Cluster

*

GPS*

*

0*

*

*