Remove dangling nodes

.gitignore

@@ -1,3 +1,5 @@
+.venv
+.DS_Store
 .coveralls.yml
 docs/_build/**
 _build/**

examples/openai-lander/config

@@ -5,39 +5,48 @@ pop_size              = 150
 # Note: the fitness threshold will never be reached because
 # we are controlling the termination ourselves based on simulation performance.
 fitness_criterion     = max
-fitness_threshold     = 1000.0
+fitness_threshold     = 1950
 reset_on_extinction   = 0
 
-[LanderGenome]
+[DefaultGenome]
 num_inputs              = 8
 num_hidden              = 0
 num_outputs             = 4
-initial_connection      = partial 0.5
+initial_connection      = partial_nodirect 0.5
 feed_forward            = True
+
 compatibility_disjoint_coefficient = 1.0
-compatibility_weight_coefficient   = 1.0
-conn_add_prob           = 0.15
-conn_delete_prob        = 0.1
-node_add_prob           = 0.15
-node_delete_prob        = 0.1
-activation_default      = clamped
-activation_options      = clamped
+compatibility_weight_coefficient   = 0.6
+
+conn_add_prob           = 0.2
+conn_delete_prob        = 0.2
+
+node_add_prob           = 0.2
+node_delete_prob        = 0.2
+single_structural_mutation = False
+structural_mutation_surer = True
+
+activation_default      = tanh
+activation_options      = tanh
 activation_mutate_rate  = 0.0
+
 aggregation_default     = sum
 aggregation_options     = sum
 aggregation_mutate_rate = 0.0
+
 bias_init_mean          = 0.0
 bias_init_stdev         = 1.0
 bias_replace_rate       = 0.02
 bias_mutate_rate        = 0.8
 bias_mutate_power       = 0.4
 bias_max_value          = 30.0
 bias_min_value          = -30.0
+
 response_init_mean      = 1.0
 response_init_stdev     = 0.0
 response_replace_rate   = 0.0
-response_mutate_rate    = 0.1
-response_mutate_power   = 0.01
+response_mutate_rate    = 0.0
+response_mutate_power   = 0.0
 response_max_value      = 30.0
 response_min_value      = -30.0
 
@@ -46,8 +55,8 @@ weight_min_value        = -30
 weight_init_mean        = 0.0
 weight_init_stdev       = 1.0
 weight_mutate_rate      = 0.8
-weight_replace_rate     = 0.02
-weight_mutate_power     = 0.4
+weight_replace_rate     = 0.1
+weight_mutate_power     = 0.5
 enabled_default         = True
 enabled_mutate_rate     = 0.01
 
@@ -56,10 +65,11 @@ compatibility_threshold = 3.0
 
 [DefaultStagnation]
 species_fitness_func = mean
-max_stagnation       = 15
-species_elitism      = 4
+max_stagnation       = 50
+species_elitism      = 2
 
 [DefaultReproduction]
-elitism            = 2
+elitism            = 4
 survival_threshold = 0.2
+trim_dangling_after_n_generations_wo_improvment = 30
 

examples/openai-lander/config-lander-continuous

@@ -0,0 +1,74 @@
+# neat-python configuration for the LunarLander-v2 environment on OpenAI Gym
+
+[NEAT]
+pop_size              = 150
+# Note: the fitness threshold will never be reached because
+# we are controlling the termination ourselves based on simulation performance.
+fitness_criterion     = max
+fitness_threshold     = 1950
+reset_on_extinction   = 0
+
+[DefaultGenome]
+num_inputs              = 8
+num_hidden              = 0
+num_outputs             = 2
+initial_connection      = partial_direct 0.5
+feed_forward            = True
+
+compatibility_disjoint_coefficient = 1.0
+compatibility_weight_coefficient   = 0.6
+
+conn_add_prob           = 0.2
+conn_delete_prob        = 0.2
+
+node_add_prob           = 0.2
+node_delete_prob        = 0.2
+single_structural_mutation = False
+structural_mutation_surer = True
+
+activation_default      = tanh
+activation_options      = tanh
+activation_mutate_rate  = 0.0
+
+aggregation_default     = sum
+aggregation_options     = sum
+aggregation_mutate_rate = 0.0
+
+bias_init_mean          = 0.0
+bias_init_stdev         = 1.0
+bias_replace_rate       = 0.02
+bias_mutate_rate        = 0.8
+bias_mutate_power       = 0.4
+bias_max_value          = 30.0
+bias_min_value          = -30.0
+
+response_init_mean      = 1.0
+response_init_stdev     = 0.0
+response_replace_rate   = 0.0
+response_mutate_rate    = 0.0
+response_mutate_power   = 0.0
+response_max_value      = 30.0
+response_min_value      = -30.0
+
+weight_max_value        = 30
+weight_min_value        = -30
+weight_init_mean        = 0.0
+weight_init_stdev       = 1.0
+weight_mutate_rate      = 0.8
+weight_replace_rate     = 0.1
+weight_mutate_power     = 0.5
+enabled_default         = True
+enabled_mutate_rate     = 0.0
+
+[DefaultSpeciesSet]
+compatibility_threshold = 3.0
+
+[DefaultStagnation]
+species_fitness_func = mean
+max_stagnation       = 50
+species_elitism      = 2
+
+[DefaultReproduction]
+elitism            = 2
+survival_threshold = 0.2
+trim_dangling_after_n_generations_wo_improvment = 40