def train(self, X, **kw):
from plastk import rand
self._mem.append((X, kw))
N = len(self._mem)
i = rand.randrange(N)
self.debug("Training on memory element", i)
V, training_kw = self._mem[i]
super(VQTrainingMemory, self).train(V, **training_kw)
if N > self.memory_size:
self._mem.pop(0)
self.present_input(X)
def train(self,X,**kw):
from plastk import rand
self._mem.append((X,kw))
N = len(self._mem)
i = rand.randrange(N)
self.debug("Training on memory element",i)
V,training_kw = self._mem[i]
super(VQTrainingMemory,self).train(V,**training_kw)
if N > self.memory_size:
self._mem.pop(0)
self.present_input(X)
# loadTiles loads them into array tiles starting from position startElement
# if memSizeorCtable is a CollisionTable,
# hashing collisions are checked for and handled
# otherwise it must be an integer power of 2 and collisions are ignored
# floats is a list of real variables to be tiled
# ints is an optional list of integer variables to be tiled
# CollisionTable(size,safety) or makeCtable(size,safety)
# size and safety are optional; size must be a power of 2; makeCtable checks for this
from plastk.rand import random, randrange
from math import floor, log
_maxNumFloats = 200 # maximum number of variables used in one grid
_maxLongint = 2147483647
_maxLongintBy4 = _maxLongint // 4
_randomTable = [randrange(65536) for i in range(2048)]
# The following are temporary variables used by tiles.
_qstate = [0 for i in range(_maxNumFloats)]
_base = [0 for i in range(_maxNumFloats)]
_coordinates = [0 for i in range(1 + 2 * _maxNumFloats)]
class CollisionTable:
"Structure to handle collisions"
def __init__(self, size_val=2048, safety_val='safe'):
# if not power of 2 error
if not powerOf2(size_val):
print "error - size should be a power of 2"
self.size = size_val
# loadTiles loads them into array tiles starting from position startElement # if memSizeorCtable is a CollisionTable, # hashing collisions are checked for and handled # otherwise it must be an integer power of 2 and collisions are ignored # floats is a list of real variables to be tiled # ints is an optional list of integer variables to be tiled # CollisionTable(size,safety) or makeCtable(size,safety) # size and safety are optional; size must be a power of 2; makeCtable checks for this from plastk.rand import random, randrange from math import floor, log _maxNumFloats = 200 # maximum number of variables used in one grid _maxLongint = 2147483647 _maxLongintBy4 = _maxLongint // 4 _randomTable = [randrange(65536) for i in range(2048)] # The following are temporary variables used by tiles. _qstate = [0 for i in range(_maxNumFloats)] _base = [0 for i in range(_maxNumFloats)] _coordinates = [0 for i in range(1 + 2*_maxNumFloats)] class CollisionTable: "Structure to handle collisions" def __init__(self, size_val=2048, safety_val='safe'): # if not power of 2 error if not powerOf2(size_val): print "error - size should be a power of 2" self.size = size_val self.safety = safety_val # one of 'safe', 'super safe' or 'unsafe' self.calls = 0
