Knowledge representation dynamic frame model for land use changes

A technology of knowledge representation and frame model, applied in the direction of knowledge expression, etc., can solve problems such as the connection representation of things that cannot be structurally related, difficult to represent process heuristic knowledge and uncertain knowledge, and low work efficiency, so as to achieve clear semantics, Easy-to-understand, easy-to-interpret effects

Inactive Publication Date: 2012-07-11
WUHAN UNIV OF TECH
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Problems solved by technology

For the knowledge representation method, it is mainly considered from the aspects of whether the domain knowledge is fully represented, the difficulty of understanding and realization, and the efficiency of knowledge utilization. Each method has different characteristics and scope of application. For example, the production knowledge represe...

Method used

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  • Knowledge representation dynamic frame model for land use changes
  • Knowledge representation dynamic frame model for land use changes

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Embodiment Construction

[0034] The areas of construction land, agricultural land, unused land, green land and water area in a certain area are 245km 2 、150km 2 、90km 2 、100km 2 、180km 2 After a period of development, the types of land use have changed, and the scale of construction land is constantly expanding. The agricultural land, unused land, and green land are 18km away. 2 、27.9km 2 and 9km 2 Converted to building land, the water area is reduced by 32.4km 2 , are converted into construction land. 15km in agricultural land 2Transformed into green land, 11.7km of unused land 2 and 14.4km 2 Converted to agricultural land and green land.

[0035] In order to intuitively and clearly show the change of land use type in this area, the attached figure 1 The shown dynamic frame model of knowledge representation of land use change includes nodes, connecting edges and arrows connecting edges, probability parameter set, connecting edges and connecting nodes, and the direction of the connecting ed...

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Abstract

The invention discloses a knowledge representation dynamic frame model for land utilization changes, and the knowledge representation dynamic frame model includes nodes, connecting sides and a probability parameter set, wherein the probability parameter set is located nearby the nodes; the nodes are used for representing the land use patterns, and include the time attributes and the area characteristics of corresponding land use patterns; the connecting sides are connected with the nodes, representing the existence of the conversion relationship between the connected nodes; the arrow directions of the connecting sides represent the conversion direction between the connected nodes; and the probability parameter set represent the conversion intensity between the nodes. The model can efficiently represent various knowledge patterns of the land use changes, uses the nodes and directed edges to represent the qualitative knowledge of the land use changes, uses the probability parameter set to represent the quantitative knowledge, establishes the frame model integrally representing the qualitative knowledge and the quantitative knowledge, and realizes the organic combination of representation of the qualitative knowledge and the quantitative knowledge.

Description

technical field [0001] The present invention is mainly oriented to domain knowledge of land use change, and proposes a knowledge representation method based on a network model to realize the organic unity of qualitative knowledge representation and quantitative knowledge representation of land use change, which is useful for knowledge reasoning and expert systems of land use change The construction is of great scientific significance. in the field of earth sciences. Background technique [0002] Land use is the regulatory measures and production activities that humans take on land to meet social needs. Land use changes reflect the changes in land management methods for various purposes in different periods. With the increasingly prominent problems of population, resources and environment in our country, the internal relationship between land use change, social economic development and industrial structure adjustment has received widespread attention, and the study of land u...

Claims

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Application Information

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IPC IPC(8): G06N5/02
Inventor 黄解军吴迎霞崔巍袁艳斌詹云军
Owner WUHAN UNIV OF TECH
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