m2.1.py

#!/usr/bin/env python

import mxnet as mx
import logging
import sys
from reader import load_mnist

MODEL_DIR = "/models"
model_prefix = "ece408"
dataset_size = float("inf")

if len(sys.argv) > 1:
    dataset_size = int(sys.argv[1])
if len(sys.argv) > 2:
    print "Usage:", sys.argv[0], "<dataset size>"
    print "    <dataset_size> = [0 - 10000]"
    sys.exit(-1)

# Log to stdout for MXNet
logging.getLogger().setLevel(logging.DEBUG)  # logging to stdout

print "Loading fashion-mnist data...",
test_images, test_labels = load_mnist(
    path="/fashion-mnist", rows=48, cols=48, kind="t10k-48")
print "done"

# Reduce the size of the dataset, if desired
dataset_size = max(0, min(dataset_size, 10000))
test_images = test_images[:dataset_size]
test_labels = test_labels[:dataset_size]

# Cap batch size at the size of our training data
batch_size = len(test_images)

# Get iterators that cover the dataset
test_iter = mx.io.NDArrayIter(
    test_images, test_labels, batch_size)

# Evaluate the network
print "Loading model...",
lenet_model = mx.mod.Module.load(
    prefix=MODEL_DIR + "/" + model_prefix, epoch=2, context=mx.cpu())
lenet_model.bind(data_shapes=test_iter.provide_data,
                 label_shapes=test_iter.provide_label)
print "done"

print "New Inference"
acc = mx.metric.Accuracy()
lenet_model.score(test_iter, acc)
print "Correctness:", acc.get()[1], "Model:", model_prefix