Case study on biodiversity data:
Given a forest with N treatment units. Each unit has a number of species of interest. The owner decides to set aside Y units for preservation.
Which selection of Y units gives the largest number of species?
In this setup there is
- 155 units
- 133 species
- 10 units to be preserved
//
// name : sabd.cpp
// version : 1.0
// date : 99.05.07
// made by : sverre stikbakke
// description: Simulated annealing algorithm used
// on biodiversity data.
//
// syntax : sabd ck_0 Lk_0 red_rate outlevel
//
// reference : Aarts and Korst, 1989.
// Simulated Annealing and Boltzmann Machines.
//
float ck_0; // initial temperature
int Lk_0; // initial step-length
float red_rate; // temperature reduction rate
int outlevel; // output level controlResult of sample run showing 10 units with 101 species:
############## Simulated annealing results summary ##################
Parameters:
initial temperature, ck_0: 35
iterations on each step, Lk_0: 50
temperature reduction rate : 0.2
output level control : 0
Results:
Steps (k): 54
Iterations (m): 2700
Final state temperature: 0.0002046102
Last accepted solution:
Z = 101 49 113 47 45 61 41 35 60 38 39 m: 2700
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