Geo-referenced Pattern Mining

A geo-referenced database represents the data gathered by a set of fixed sensors observing a particular phenomenon over a time period. It is a combination of spatial database and transactional/temporal/utility database .

Types of Geo-referenced databases

  • Geo-referenced transactional databases

  • Geo-referenced temporal databases

  • Geo-referenced utility database

Basic topics

  • Location/spatial database

  • Neighborhood database

  1. Geo-referenced transactional database

    A transactional database is said to be a geo-referenced transactional database if it contains spatial items. The format of this database is similar to that of transactional database . An example of a geo-referenced transactional database is as follows:

    TID

    Items

    1

    Point(0 0) Point(0 1) Point(1 0)

    2

    Point(0 0) Point(0 2) Point(5 0)

    3

    Point(5 0)

    4

    Point(4 0) Point(5 0)

    Note: The rules to create a geo-referenced transactional database are same as the rules to create a transactional database. In other words, the format of creating a transaction in a geo-referential database is:

    >>> spatialItem1<sep>spatialItem2<sep>...<sep>spatialItemN

    An example:

    Point(0 0) Point(0 1) Point(1 0)

    Point(0 0) Point(0 2) Point(5 0)

    Point(5 0)

    Point(4 0) Point(5 0)

  2. Geo-referential temporal database

    A temporal database is said to be a geo-referential temporal database if it contains spatial items. The format of this database is similar to that of temporal database . An example of a geo-referential temporal database is as follows:

    TID

    Timestamp

    Items

    1

    1

    Point(0 0) Point(0 1) Point(1 0)

    2

    2

    Point(0 0) Point(0 2) Point(5 0)

    3

    4

    Point(5 0)

    4

    5

    Point(4 0) Point(5 0)

    Note: The rules to create geo-referential temporal database are same as the rules to create a temporal database. In other words, the format to create geo-referential temporal database is as follows:

    >>> timestamp<sep>spatialItem1<sep>spatialItem2<sep>...<sep>spatialItemN

    An example:

    1 Point(0 0) Point(0 1) Point(1 0)

    2 Point(0 0) Point(0 2) Point(5 0)

    4 Point(5 0)

    5 Point(4 0) Point(5 0)

  3. Geo-referential utility database

    A utility database is said to be a geo-referential utility database if it contains spatial items. The format of this database is similar to that of utility database . An example of a geo-referential utility database is as follows:

    TID

    Transactions (items and their prices)

    1

    (Point(0 0),100) (Point(0 1),42) (Point(1 0), 20)

    2

    (Point(0 0), 100) (Point(0 2), 10) (Point(5 0), 30)

    3

    (Point(5 0), 30)

    4

    (Point(4 0),30), (Point(5 0),40)

Note: The rules to create geo-referential utility database are same as the rules to create a utility database. In other words, the format to create geo-referential utility database is as follows:

>>> timestamp<sep>spatialItem1<sep>spatialItem2<sep>...<sep>spatialItemN : total utility : utilityA<sep>utilityB<sep>...<sep>utilityN

An example:

1 Point(0 0) Point(0 1) Point(1 0):162:100 42 20

2 Point(0 0) Point(0 2) Point(5 0):140:100 10 30

4 Point(5 0):30:30

5 Point(4 0) Point(5 0):70:30 40