Geoscience Reference
In-Depth Information
LACONISS
(Land consolidation
integrated support system
for planning and
decision making)
LandSpaCES
(Land spatial
consolidation
expert system)
LandFragments
(Land fragmentation
system)
LandParcels
(Land parcelling system)
Intelligence phase
Land fragmentation
module
(GIS+MADM)
Design phase I
Land redistribution
design module
(GIS+ES)
Choice phase I
Land redistribution
evaluation module
(GIS+MADM)
DesignII&Choice II
Land partitioning
module
(GIS+GAs+MODM)
Alternative land
redistribution
plans
Best land
redistribution
plan
Final land
reallocation plan
FIGURE 11.3
The operational framework of LACONISS. (From Demetriou, D. et al., LandSpaCES:
A spatial expert system for land consolidation, in
Advancing Geoinformation Science for a Changing World
,
Geertman, S., Reinhardt, W., and Toppen, F., eds., pp. 249-274, Lecture Notes in Geoinformation and
Cartography, 2011, http://www.springer.com/earth+sciences+and+geography/geographical+information+sys
tems/book/978-3-642-19788-8.)
Land redistribution is a narrow problem domain with well-defined and explicit outcomes because
it is bounded by a large number of legislative provisions and official guidelines which satisfies Q2.
Land reallocation (of which land redistribution is one part) is one of the most complex parts of
land consolidation and can be time-consuming, that is, the process can take months, if not years,
depending on the size of the scheme. For this reason, there is a need for an ES (Q4). Finally, the
system was developed by an expert with considerable experience in the area of land consolidation.
Moreover, other experts were willing to take part in the process of knowledge extraction and build-
ing the knowledge base (Q5).
A schematic of the LACONISS system is provided in Figure 11.3. The ES in this framework is
contained within the dashed rectangular box, which is part of the land redistribution design module
that automatically produces the basis of alternative land redistribution plans as an output to the next
module.
The ES emulates the decision-making ability of the land consolidation experts, where the knowl-
edge is captured as a set of
if-then
rules, formulated using decision tree analysis where the main
decision tree is illustrated in Figure 11.4.
After disaggregating each of the six land redistribution cases into further decision trees, 74
if-
then
rules were extracted to build the knowledge base. An example of a rule from the rule base is
shown in the succeeding text:
IF [The total area OR value of a landowner's property is less than the minimum completion limits set by
the Committee AND the examined parcel is not “exempted”] THEN [The landowner will not receive
any parcel in the new plan AND he/she will receive as pecuniary compensation the land value of the
property AND the property will be available to be distributed to other landowners]
where the committee refers to the Land Consolidation Committee that sets certain limits as part of
the Cypriot land consolidation legislation. More information about the construction of the actual ES
rule base can be found in Demetriou et al. (2010).
