Báo cáo khoa học: "Complementing Word Net with Roget''''''''s and Corpus-based Thesauri for Information Retrieval" pdf
Báo cáo khoa học: "Complementing Word Net with Roget''''s and Corpus-based Thesauri for Information Retrieval" pdf
... Proceedings of EACL '99
Complementing WordNet with Roget's and Corpus-based
Thesauri for Information Retrieval
Rila Mandala, Takenobu Tokunaga and Hozumi Tanaka
Abstract
This paper ... drawbacks of WordNet when
applied to information retrieval by com-
plementing it with Roget's thesaurus and
corpus-derived thesauri. Words and rela-
tions which are...
Tài liệu Báo cáo khoa học: "Learning Word Senses With Feature Selection and Order Identification Capabilities" pdf
... not be distinguished using
only bag-of-words information, and their difference
lies in syntactic information held by features. For
example, the third sense and the sixth sense of “in-
terest” may ... But there is some
differences for verb “serve” and noun “line”. For
Table 3: Mutual information between feature subset and class
label with χ
2
based feature ranking.
Word...
Báo cáo khoa học: "Examining the Content Load of Part of Speech Blocks for Information Retrieval" pptx
... with TF IDF, BM25, and DLH; (ii) 30/5 with
PL2; and (iii) 10/5 with BB2. For the WT10G col-
lection, the said ratio is (i) 10/5 for TF IDF; (ii)
20/5 for BM25 and DLH; and (iii) 5/5 for PL2 and
BB2.
We ... parameters,
namely, for the TF
IDF and BM25 weighting
schemes (Robertson et al., 1995),
,
, and for both test collec-
tions; while for the PL2 and BB2 te...
Tài liệu Báo cáo khoa học: "Discriminative Word Alignment with Conditional Random Fields" ppt
... many-to-one word alignments,
where each source word is aligned with zero or
one target words, and therefore each target word
can be aligned with many source words. Each
source word is labelled with ... source and target sentences with Tree-
Tagger.
2
We created indicator features over the
POS tags of each candidate source and target word
pair, as well as over the sourc...
Báo cáo khoa học: "Unsupervised Word Alignment with Arbitrary Features" potx
... Collins, and T. Darrell. 2004. Condi-
tional random fields for object recognition. In NIPS
17.
H. Setiawan, C. Dyer, and P. Resnik. 2010. Discrimina-
tive word alignment with a function word reordering
model. ... be-
tween pairs of source and target word types across
sentence pairs (Dice, 1945), IBM Model 1 forward
and reverse probabilities, and the geometric mean of
the Mo...
Báo cáo khoa học: "Better Word Alignments with Supervised ITG Models" pdf
... productions X → e, f,
where e and f are an aligned English and for-
eign word pair (possibly with one being null);
normal binary rules X → X
(L)
X
(R)
, where the
English and foreign spans are constructed ... s
i
and
s
j
represent English null and foreign null poten-
tials, respectively.
We evaluate our proposed alignments (a)
against hand-annotated alignments, which are
m...
Báo cáo khoa học: "Extracting Word Sets with Non-Taxonomical Relation" potx
...
thematic relation for information retrieval.
1. Introduction
Related word sets are useful linguistic resources
for language understanding and generation, infor-
mation retrieval, and so on. In ... among
related words: taxonomical relations and
thematic relations. Both relations identify
related words useful to language under-
standing and generation, information re-
tr...
Tài liệu Báo cáo khoa học: "Improving Word Representations via Global Context and Multiple Word Prototypes" pdf
... only local context and one represen-
tation per word. This is problematic because
words are often polysemous and global con-
text can also provide useful information for
learning word meanings. We ... new
neural network architecture which 1) learns
word embeddings that better capture the se-
mantics of words by incorporating both local
and global document context, and 2) acco...
Tài liệu Báo cáo khoa học: "Chinese Word Segmentation without Using Lexicon and Hand-crafted Training Data" pdf
...
2. Principle
2.1. Mutual information and difference of
t-score between characters
Mutual information and t-score, two
important concepts in information theory and
statistics, have been ... segmentation is therefore the first step for any
Chinese information processing system[ 1].
Almost all methods for Chinese word
segmentation developed so far, both statistical...
Báo cáo khoa học: Endogenous tetrahydroisoquinolines associated with Parkinson’s disease mimic the feedback inhibition of tyrosine hydroxylase by catecholamines doc
... atoms and the
iron was 1.74 A
˚
for both NMNorsal and Norsal and
1.72 A
˚
for NMSal, compared to 1.71 A
˚
for DA
(Table 1). The oxygen atoms were placed opposite the
e nitrogen atoms of His331 and ... alternative
ligand placements according to the energy score of each
conformation, and determined interaction energies for the
20 energetically most favorable conformations. To...
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