Self-organizing map (SOM) for species distribution modelling of birds species at Kenyir landscape

The Time Adaptive Self Organizing Map for Distribution Estimation

The feature map represented by the set of weight vectors of the basic SOM (Self-Organizing Map) provides a good approximation to the input space from which the sample vectors come. But the timedecreasing learning rate and neighborhood function of the basic SOM algorithm reduce its capability to adapt weights for a varied environment. In dealing with non-stationary input distributions and changi...

Species distribution modelling of invasive alien species; Pterois miles for current distribution and future suitable habitats

The present study aims to predict the potential geographic distribution and future expansion of invasive alien lionfish (Pterois miles) with ecological niche modelling along the Mediterranean Sea. The primary data consisted of occurrence points of P. miles in the Mediterranean and marine climatic data layers were collected from global databases. All the used models run 100% su...

C - Som : a Continuous Self - Organizing Map for Function Approximation

We propose a new method called C-SOM using a Self-Organizing Map (SOM) for function approximation. C-SOM takes care about the output values of the «win-ning» neuron's neighbors of the map to compute the output value associated with the input data. Our work extends the standard SOM with a combination of Local Linear Mapping (LLM) and cubic spline based interpolation techniques to improve its gen...

Modelling species distribution when habitat occupancy departs from suitability Application to birds in a landscape context

Self-organizing map for conceptual modelling

Textual description of the concept plays an important role in the conceptual model comprehensibility. In this paper, the self-organizing map to test the model comprehensibility is suggested. An explanatory text of the concept is transformed into a numerical vector. Several vector spaces are build using the hyponymy of the concepts from the WordNet dictionary. The received conceptual model vecto...