def __init__(self, n_inputs, n_outputs, n_tasks, args):
super(Net, self).__init__()
self.args = args
self.nt = n_tasks
self.n_feat = n_outputs
self.n_classes = n_outputs
arch = args.arch
nl, nh = args.n_layers, args.n_hiddens
config = mf.ModelFactory.get_model(model_type=arch,
sizes=[n_inputs] + [nh] * nl +
[n_outputs],
dataset=args.dataset,
args=args)
self.net = Learner.Learner(config, args)
# setup optimizer
self.opt = torch.optim.SGD(self.parameters(), lr=args.lr)
# setup losses
self.loss = torch.nn.CrossEntropyLoss()
self.gpu = args.cuda
self.nc_per_task = int(n_outputs / n_tasks)
self.n_outputs = n_outputs
def __init__(self, n_inputs, n_outputs, n_tasks, args):
super(Net, self).__init__()
self.args = args
nl, nh = args.n_layers, args.n_hiddens
config = mf.ModelFactory.get_model(model_type=args.arch,
sizes=[n_inputs] + [nh] * nl +
[n_outputs],
dataset=args.dataset,
args=args)
self.net = Learner.Learner(config, args)
# define the lr params
self.net.define_task_lr_params(alpha_init=args.alpha_init)
self.cuda = args.cuda
if self.cuda:
self.net = self.net.cuda(self.args.device_id)
# optimizer model
optimizer_model = optimizers_lib.__dict__[args.bgd_optimizer]
# params used to instantiate the BGD optimiser
optimizer_params = dict(
{ #"logger": logger,
"mean_eta": args.mean_eta,
"std_init": args.std_init,
"mc_iters": args.train_mc_iters
},
**literal_eval(" ".join(args.optimizer_params)))
self.optimizer = optimizer_model(self.net, **optimizer_params)
self.epoch = 0
# allocate buffer
self.M = []
self.M_new = []
self.age = 0
# setup losses
self.loss = torch.nn.CrossEntropyLoss()
self.is_cifar = ((args.dataset == 'cifar100')
or (args.dataset == 'tinyimagenet'))
self.glances = args.glances
self.pass_itr = 0
self.real_epoch = 0
# setup memories
self.current_task = 0
self.memories = args.memories
self.batchSize = int(args.replay_batch_size)
if self.is_cifar:
self.nc_per_task = n_outputs / n_tasks
else:
self.nc_per_task = n_outputs
self.n_outputs = n_outputs
self.obseve_itr = 0
def __init__(self, n_inputs, n_outputs, n_tasks, args):
super(Net, self).__init__()
self.args = args
self.margin = args.memory_strength
self.is_cifar = ((args.dataset == 'cifar100')
or (args.dataset == 'tinyimagenet'))
nl, nh = args.n_layers, args.n_hiddens
config = mf.ModelFactory.get_model(model_type=args.arch,
sizes=[n_inputs] + [nh] * nl +
[n_outputs],
dataset=args.dataset,
args=args)
self.net = Learner.Learner(config, args=args)
self.netforward = self.net.forward
self.ce = nn.CrossEntropyLoss()
self.n_outputs = n_outputs
self.glances = args.glances
self.opt = optim.SGD(self.parameters(), args.lr)
self.n_memories = args.n_memories
self.gpu = args.cuda
# allocate episodic memory
self.memory_data = torch.FloatTensor(n_tasks, self.n_memories,
n_inputs)
self.memory_labs = torch.LongTensor(n_tasks, self.n_memories)
if args.cuda:
self.memory_data = self.memory_data.cuda(args.device_id)
self.memory_labs = self.memory_labs.cuda(args.device_id)
# allocate temporary synaptic memory
self.grad_dims = []
for param in self.parameters():
self.grad_dims.append(param.data.numel())
self.grads = torch.Tensor(sum(self.grad_dims), n_tasks)
if args.cuda:
self.grads = self.grads.cuda(args.device_id)
# allocate counters
self.observed_tasks = []
self.old_task = -1
self.mem_cnt = 0
if self.is_cifar:
self.nc_per_task = int(n_outputs / n_tasks)
else:
self.nc_per_task = n_outputs
if args.cuda:
self.cuda(args.device_id)
def __init__(self, n_inputs, n_outputs, n_tasks, args):
super(BaseNet, self).__init__()
self.args = args
nl, nh = args.n_layers, args.n_hiddens
config = mf.ModelFactory.get_model(model_type=args.arch,
sizes=[n_inputs] + [nh] * nl +
[n_outputs],
dataset=args.dataset,
args=args)
self.net = Learner.Learner(config, args)
# define the lr params
self.net.define_task_lr_params(alpha_init=args.alpha_init)
self.opt_wt = torch.optim.SGD(list(self.net.parameters()),
lr=args.opt_wt)
self.opt_lr = torch.optim.SGD(list(self.net.alpha_lr.parameters()),
lr=args.opt_lr)
self.epoch = 0
# allocate buffer
self.M = []
self.M_new = []
self.age = 0
# setup losses
self.loss = torch.nn.CrossEntropyLoss()
self.is_cifar = ((args.dataset == 'cifar100')
or (args.dataset == 'tinyimagenet'))
self.glances = args.glances
self.pass_itr = 0
self.real_epoch = 0
self.current_task = 0
self.memories = args.memories
self.batchSize = int(args.replay_batch_size)
self.cuda = args.cuda
if self.cuda:
self.net = self.net.cuda()
self.n_outputs = n_outputs
def __init__(self, n_inputs, n_outputs, n_tasks, args):
super(Net, self).__init__()
self.args = args
nl, nh = args.n_layers, args.n_hiddens
config = mf.ModelFactory.get_model(model_type=args.arch,
sizes=[n_inputs] + [nh] * nl +
[n_outputs],
dataset=args.dataset,
args=args)
self.net = Learner.Learner(config, args)
self.opt_wt = optim.SGD(self.parameters(), lr=args.lr)
if self.args.learn_lr:
self.net.define_task_lr_params(alpha_init=args.alpha_init)
self.opt_lr = torch.optim.SGD(list(self.net.alpha_lr.parameters()),
lr=args.opt_lr)
self.loss = CrossEntropyLoss()
self.is_cifar = ((args.dataset == 'cifar100')
or (args.dataset == 'tinyimagenet'))
self.glances = args.glances
self.current_task = 0
self.memories = args.memories
self.batchSize = int(args.replay_batch_size)
# allocate buffer
self.M = []
self.age = 0
# handle gpus if specified
self.cuda = args.cuda
if self.cuda:
self.net = self.net.cuda(args.device_id)
self.n_outputs = n_outputs
if self.is_cifar:
self.nc_per_task = int(n_outputs / n_tasks)
else:
self.nc_per_task = n_outputs
self.args = args
def __init__(self, n_inputs, n_outputs, n_tasks, args):
super(Net, self).__init__()
self.args = args
self.nt = n_tasks
self.reg = args.memory_strength
self.n_memories = args.n_memories
self.num_exemplars = 0
self.n_feat = n_outputs
self.n_classes = n_outputs
self.samples_per_task = args.samples_per_task * (1.0 - args.validation)
if self.samples_per_task <= 0:
error('set explicitly args.samples_per_task')
self.examples_seen = 0
self.glances = args.glances
# setup network
nl, nh = args.n_layers, args.n_hiddens
config = mf.ModelFactory.get_model(model_type=args.arch,
sizes=[n_inputs] + [nh] * nl +
[n_outputs],
dataset=args.dataset,
args=args)
self.net = Learner.Learner(config, args)
# setup optimizer
self.opt = torch.optim.SGD(self.parameters(), lr=args.lr)
# setup losses
self.bce = torch.nn.CrossEntropyLoss()
self.kl = torch.nn.KLDivLoss() # for distillation
self.lsm = torch.nn.LogSoftmax(dim=1)
self.sm = torch.nn.Softmax(dim=1)
# memory
self.memx = None # stores raw inputs, PxD
self.memy = None
self.mem_class_x = {} # stores exemplars class by class
self.mem_class_y = {}
self.gpu = args.cuda
self.nc_per_task = int(n_outputs / n_tasks)
self.n_outputs = n_outputs
def __init__(self, n_inputs, n_outputs, n_tasks, args):
super(Net, self).__init__()
self.args = args
nl, nh = args.n_layers, args.n_hiddens
self.is_cifar = (args.dataset == 'cifar100'
or args.dataset == 'tinyimagenet')
config = mf.ModelFactory.get_model(args.arch,
sizes=[n_inputs] + [nh] * nl +
[n_outputs],
dataset=args.dataset,
args=args)
self.net = Learner.Learner(config, args=args)
self.netforward = self.net.forward
self.bce = torch.nn.CrossEntropyLoss()
self.n_outputs = n_outputs
if self.is_cifar:
self.nc_per_task = n_outputs / n_tasks
else:
self.nc_per_task = n_outputs
self.opt = optim.SGD(self.parameters(), args.lr)
self.batchSize = int(args.replay_batch_size)
self.memories = args.memories
self.steps = int(args.batches_per_example)
self.beta = args.beta
self.gamma = args.gamma
# allocate buffer
self.M = []
self.age = 0
# handle gpus if specified
self.cuda = args.cuda
if self.cuda:
self.net = self.net.cuda(self.args.device_id)
