Báo cáo khoa học: "Improved Discriminative Bilingual Word Alignment" pdf
Tài liệu Báo cáo khoa học: "A Discriminative Syntactic Word Order Model for Machine Translation" pdf
... mapping, every word on the target side is asso-
ciated with some word on the source side.
10
subtree in the target rooted at the rightmost of these
words and attaches the other word( s) to it. ... among
possible word orders. We show that com-
bining discriminative training with features
to detect these two different kinds of move-
ment phenomena leads to substantial im-
provements in...
Tài liệu Báo cáo khoa học: "Improved Unsupervised POS Induction through Prototype Discovery" ppt
... to words in-
cluding more than one stem (like weatherman), to
words that have a null affix (i.e., where the word
is identical to its stem) and to words whose stem
is not shared by any other word ... as unknown words. We consider two schemes
for handling unknown words. One randomly maps
each such word to a cluster, using a probabil-
ity proportional to the number of unique known
words alr...
Tài liệu Báo cáo khoa học: "Smoothing a Tera-word Language Model" doc
... probability
of each word using the context made up of the previ-
ous n−1 words. Let abc represent an n-gram where
a is the first word, c is the last word, and b repre-
sents zero or more words in between. ... The Web 1T dataset has a 13 million
word vocabulary consisting of words that appear 100
times or more in its corpus. 769 sentences in Brown
that contained words outside this vocabul...
Tài liệu Báo cáo khoa học: "Improved Smoothing for N-gram Language Models Based on Ordinary Counts" doc
... language, simple N-gram models, which
estimate the probability of each word in a text
string based on the N −1 preceding words, remain
the most widely used type of model.
The simplest possible ... a word w
n
, given the preceding
context w
1
. w
n−1
, to be the ratio of the num-
ber of occurrences in a training corpus of the N-
gram w
1
. w
n
to the total number of occurrences
of any wor...
Tài liệu Báo cáo khoa học: "Deriving an Ambiguous Word’s Part-of-Speech Distribution from Unannotated Text" doc
... occa-
sionally allow for words from other clusters.
4 Results
As our test vocabulary we chose a sample of 50
words taken from a previous study (Rapp, 2005).
The list of words is included in Table ... automatically in-
duce a system of word classes that is in agreement
with human intuition, and then to assign all possi-
ble parts of speech to a given ambiguous or unam-
biguous word. Tw...
Tài liệu Báo cáo khoa học: Improved ecdysone receptor-based inducible gene regulation system doc
... ligand
resulted in 50% and 80% reduction in reporter gene activity
by 12 h and 24 h, respectively.
Keywords: gene switch; ponasterone A; receptors; EcR;
RXR.
Twenty hydroxyecdysone (20E) is a steroid
Tài liệu Báo cáo khoa học: "Discovering Corpus-Specific Word Senses" pot
... h,)
Cik
4111)
11‘
41
4Wit
ler,1110.1/.
1
7,
cgtoserek■Ilt
Figure 1: Local graph of the word
mouse
Figure 2: Local graph of the word
wing
3 Markov Clustering
Ambiguous words link otherwise unrelated areas
of meaning E.g.
rat ... them.
Sense clusters are iteratively computed
by clustering the local graph of similar
words around an ambiguous word. Dis-
crimination against previously...
Tài liệu Báo cáo khoa học: Sensor of phospholipids inStreptomycesphospholipase D pdf
... mentioned above, previous experimental studies
have focused on the relationship between HKD motifs
Keywords
phospholipase D; phospholipid; substrate
recognition; SPR; Streptomyces
Correspondence
T.
Tài liệu Báo cáo khoa học: "Lemmatisation as a Tagging Task" pdf
... regularity of word forms that
is shared by all languages: infrequent words tend to
be formed according to a regular pattern, while ir-
regular word forms tend to occur in frequent words.
The described ... set that covers most of the word occur-
rences in a text: a specialized label is learnt for fre-
quent irregular words, while a generic label is learnt
to handle words that follow a re...
Tài liệu Báo cáo khoa học: "Learning to Follow Navigational Directions" pdf
... features organized by spatial word. The top
row shows the weights of allocentric (landmark-centered) features. For example, the top left figure shows
that when the word above occurs, our policy ... accounts of learning typically rely on lin-
guistic annotation (Zettlemoyer and Collins, 2009)
or word distributions (Curran, 2003). In con-
trast, we present an apprenticeship learning sys-
te...