Datasets > Real > Low-dimensional

Germany | Greece | North America

Sources

All files are in zipped text (plain ascii) format including tuples of the form (unless otherwise indicated):

<id x1 y1 x2 y2> or <x1 y1 x2 y2> for MBRs

<id x y> or <x y> for points

Germany:

roads.zip (0.3Mb): MBRs of 30,674 streets (polylines) of Germany. See image
rrlines.zip (0.3Mb): MBRs of 36,334 railroad lines. See image
utility.zip (0.2Mb): MBRs of 17,790 utility network elements. See image
hypsogr.zip (0.6Mb): hypsography data (76,999 MBRs). See image

Greece:

roads.zip (0.3Mb): MBRs of 23,268 streets (polylines) in Greece. See image
rivers.zip (0.4Mb): MBRs of 24,650 rivers. See image
lakes.txt (0.0Mb): MBRs of 77 lakes. See image
cities_loc.zip (0.1Mb): Points - locations - of 5,922 cities and villages. See image

North America:

Digital Chart of the World [DCW]
- Point data: populated places and cultural landmarks in US, Canada, Mexico, their mergings and divisions; a total of 24,493 and 9,203 points, respectively, in <x : y : id> format. dcw-points.zip (1.1Mb). Readme. See images
- Line segment data: railroads and roads in US, Canada, Mexico, their mergings and divisions; a total of 191,637 and 402,466 line segments, respectively, in <x1 : y1 : x2 : y2 : inclination : id> format. dcw-lines.zip (22.6Mb). Readme. See images
Sequoia [Seq]
- Sequoia.zip (0.7Mb; format: <x:y:description>) and Sequoia1.zip (0.5Mb; format: <x y>): SEQUOIA points - locations - of 62,556 California place names.
Tiger/Line [Tig]
- CAR.tar.gz (12.5Mb): California Roads, containing the MBRs of 2,249,727 streets (polylines) of California.
- CAS.tar.gz (0.9Mb): California Streams, containing the MBRs of 98,451 streams (polylines) of California.
- LB.zip (0.6Mb): Long Beach county roads, containing 53,145 MBRs.
- MG.zip (0.4Mb): Montgomery county roads, containing 39,231 MBRs.
- RR.zip (2.1Mb): Tiger/Line LA rivers and railways, containing 128,971 MBRs.
- Streets.zip (1.4Mb): LA streets, containing 131,461 MBRs.
- TCB.tar.gz (4.3Mb): Tiger Census Blocks, containing the MBRs of 556,696 census blocks (po lygons) of Iowa, Kansa, Missouri and Nebraska.
- TS.tar.gz (2.0Mb): Tiger Streams, containing the MBRs of 194,971 streams (polylines) of Iowa, Kansas, Missouri and Nebraska.
Other
- NE.zip (0.8Mb): North East dataset, containing 123,593 postal addresses (points), which represent three metropolitan areas (New York, Philadelphia and Boston), hence three clusters, with a lot of noise, in the form of uniformly distributed rural areas and smaller population centers. See image

SOURCES:

[DCW] Digital Chart of the World, Penn State University Libraries (original data in Arc/Info export format).
[Seq] SEQUOIA 2000 Global Change Research Project, University of California, Berkeley.
[Tig] Tiger/Line files, Geography Division, U.S. Census Bureau.