machine-learning × 151
nlp × 101
classification × 91
clustering × 73
sampling × 33
dataset × 32
statistics × 32
evaluation × 21
unsupervised-learning × 20
online-learning × 16
text × 12
estimation × 9
applications × 7
comparison × 7
evaluation-methods × 7
performance × 7
annotation × 6
streaming-data × 6
survey × 6
accuracy × 5
corpora × 5
corpus × 5
hypothesis-testing × 5
information-extraction × 4
sequence-labeling × 4
spectral × 4
speech × 4
methodology × 3
resources × 3
elda × 2
labeled-data × 2
ldc × 2
metric × 2
mutual-information × 2
v-measure × 2
20-newsgroups × 1
baseline × 1
chess × 1
cross-validation × 1
empirical-study × 1
kappa × 1
proportion × 1
speech-recognition × 1
transcription × 1