def __init__(self, strategy, cap=None, name=None):
name = "Random" if name is None else name
self.leaf = None
from threading import Event
# used in on_start, to continue when we have a leaf.
self.first_split = Event()
Heuristic.__init__(self, strategy, name=name)
def __init__(self, strategy, cap=3, radius=1. / 100, new=1, axes='one'):
Heuristic.__init__(
self, strategy,
cap=cap, name="Nearby %.3f/%s" % (radius, axes))
self.radius = radius
self.new = new
self.axes = axes
self._depends_on = [Best]
def __init__(self, strategy, diameter=1. / 10, prob=None):
Heuristic.__init__(self, strategy, name="Extremal")
import numpy as np
if prob is None:
prob = (1, .2, .2, 1)
prob = np.array(prob) / float(np.sum(prob))
self.probabilities = prob.cumsum()
self.diameter = diameter # inside the box or around zero
self.vals = None
def __init__(self, strategy, div):
"""
Args:
- `div`: number of divisions, positive integer.
"""
cap = div
Heuristic.__init__(self, strategy, cap=cap, name="Latin Hypercube")
if not isinstance(div, int):
raise Exception("LH: div needs to be an integer")
self.div = div
def __init__(self, strategy, k=0.1):
Heuristic.__init__(self, strategy)
self.k = k
self.logger = self.config.get_logger("WAvg")
def __init__(self, strategy):
Heuristic.__init__(self, strategy, cap=1)
self.logger = self.config.get_logger("LBFGS")
def __init__(self, strategy):
Heuristic.__init__(self, strategy, name="Center", cap=1)
def __init__(self, strategy):
Heuristic.__init__(self, strategy, name="Zero", cap=1)