title(r"Learning Curve ($\lambda=0.01$, minibatch k=5)")
xlabel("SGD Iterations"); ylabel(r"Average $J(\theta)$");
ylim(ymin=0, ymax=max(1.1*max(costs),3*min(costs)));
legend()
# Don't change this filename
savefig("ner.learningcurve.comparison.png")
# ## (f): Evaluating your model
# Evaluate the model on the dev set using your `predict` function, and compute performance metrics below!
# In[13]:
# Predict labels on the dev set
yp = clf.predict(X_dev)
# Save predictions to a file, one per line
ner.save_predictions(yp, "dev.predicted")
# In[14]:
from nerwindow import full_report, eval_performance
full_report(y_dev, yp, tagnames) # full report, helpful diagnostics
eval_performance(y_dev, yp, tagnames) # performance: optimize this F1
# In[15]:
# Save your predictions on the test set for us to evaluate
# IMPORTANT: make sure X_test is exactly as loaded
def main():
# Load the starter word vectors
wv, word_to_num, num_to_word = ner.load_wv('data/ner/vocab.txt',
'data/ner/wordVectors.txt')
tagnames = ["O", "LOC", "MISC", "ORG", "PER"]
num_to_tag = dict(enumerate(tagnames))
tag_to_num = du.invert_dict(num_to_tag)
# Set window size
windowsize = 3
# Load the training set
docs = du.load_dataset('data/ner/train')
X_train, y_train = du.docs_to_windows(docs,
word_to_num,
tag_to_num,
wsize=windowsize)
# Load the dev set (for tuning hyperparameters)
docs = du.load_dataset('data/ner/dev')
X_dev, y_dev = du.docs_to_windows(docs,
word_to_num,
tag_to_num,
wsize=windowsize)
# Load the test set (dummy labels only)
docs = du.load_dataset('data/ner/test.masked')
X_test, y_test = du.docs_to_windows(docs,
word_to_num,
tag_to_num,
wsize=windowsize)
clf = WindowMLP(wv,
windowsize=windowsize,
dims=[None, 100, 5],
reg=0.001,
alpha=0.01)
train_size = X_train.shape[0]
"""
costs = pickle.load(open("costs.dat", "rb"))
clf = pickle.load(open("clf.dat", "rb"))
"""
nepoch = 5
N = nepoch * len(y_train)
k = 5 # minibatch size
costs = clf.train_sgd(X_train,
y_train,
idxiter=random_mini(k, N, train_size),
printevery=10000,
costevery=10000)
pickle.dump(clf, open("clf.dat", "wb"))
pickle.dump(costs, open("costs.dat", "wb"))
plot_learning_curve(clf, costs)
# Predict labels on the dev set
yp = clf.predict(X_dev)
# Save predictions to a file, one per line
ner.save_predictions(yp, "dev.predicted")
full_report(y_dev, yp, tagnames) # full report, helpful diagnostics
eval_performance(y_dev, yp, tagnames) # performance: optimize this F1
# L: V x 50
# W[:,50:100]: 100 x 50
responses = clf.sparams.L.dot(clf.params.W[:, 50:100].T) # V x 100
index = np.argsort(responses, axis=0)[::-1]
neurons = [1, 3, 4, 6, 8] # change this to your chosen neurons
for i in neurons:
print "Neuron %d" % i
top_words = [num_to_word[k] for k in index[:10, i]]
top_scores = [responses[k, i] for k in index[:10, i]]
print_scores(top_scores, top_words)
