Báo cáo khoa học: "Edit Tree Distance alignments for Semantic Role Labelling" ppt
Báo cáo khoa học: "Edit Tree Distance alignments for Semantic Role Labelling" ppt
... data;
Adapt the trees for the tree distance algorithm;
foreach sentence (training & testing data) do
obtain each minimal sub -tree for each pre-
dicate;
end
foreach sub -tree T from the ... pages 79–84,
Uppsala, Sweden, 13 July 2010.
c
2010 Association for Computational Linguistics
Edit Tree Distance alignments for Semantic Role Labelling
Hector-Hugo Franco-...
Tài liệu Báo cáo khoa học: "Adaptive String Distance Measures for Bilingual Dialect Lexicon Induction" pdf
... framework of lexicon induction.
3.1 Levenshtein Distance
One of the simplest string distance measures is the
Levenshtein distance. According to it, the distance
between two words is defined as the ... language fam-
ily (for example, Portuguese) by using a resource-
55
rich bridge language of the same family (for ex-
ample, Spanish). While they rely on existing
translation lexicons fo...
Báo cáo khoa học: "Making Tree Kernels practical for Natural Language Learning" potx
...
a
cat
PP
IN
A subtree
Figure 1: A syntactic parse tree.
We define as a subtree (ST) any node of a tree
along with all its descendants. For example, the
line in Figure 1 circles the subtree rooted in ... selected for
the Automatic Labeling of Semantic Roles task of
Senseval 3 (www.senseval.org). We mapped to-
gether the semantic roles having the same name
and we considered only the...
Tài liệu Báo cáo khoa học: "A Hybrid Hierarchical Model for Multi-Document Summarization" ppt
... paper, we formulate ex-
tractive summarization as a two step learn-
ing problem building a generative model
for pattern discovery and a regression
model for inference. We calculate scores
for sentences ... hierarchical topic tree.
The following is the generative process for
sumHLDA used in our HybHSum :
(1) For each topic k ∈ T , sample a distribution
β
k
Dirichlet(η).
(2) For...
Tài liệu Báo cáo khoa học: "Incremental Syntactic Language Models for Phrase-based Translation" pptx
... val-
ues.
sive phrase structure trees using the tree transforms
in Schuler et al. (2010). Constituent nontermi-
nals in right-corner transformed trees take the form
of incomplete constituents ... category for input “meets the”.
A sample phrase structure tree is shown before
and after the right-corner transform in Figures 2
and 3. Our parser operates over a right-corner trans-
formed pro...
Tài liệu Báo cáo khoa học: "Scaling up Automatic Cross-Lingual Semantic Role Annotation" docx
... data of 88% F-measure for in-
dividual semantic roles, and 69% F-measure for
whole scenario-like semantic frames. Recently, Wu
and Fung (2009a; 2009b) also show that semantic
roles help in statistical ... A1
subject and an A0 indirect object.
We therefore transfer semantic roles cross-
lingually based only on lexical alignments and add
syntactic information after transfer. In Fi...
Tài liệu Báo cáo khoa học: "Source-Language Entailment Modeling for Translating Unknown Terms" ppt
... unacceptable.
From the sentences for which rules were applica-
ble, we randomly selected a sample of sentences
for each annotator, allowing for some overlap-
ping for agreement analysis. In total, ... corresponding
target phrase for the unknown term.
We propose using monolingual paraphrasing
methods and resources for this task to obtain a
more extensive set of rules for paraphra...
Tài liệu Báo cáo khoa học: "Exploiting Non-local Features for Spoken Language Understanding" pptx
... pairs (ε → w
j
)
Figure 3: Feature templates
of semantic role labeling, the parse tree path im-
proves the classification performance of semantic
role labeling. Finally, we use the trigger pairs ... features, then
we cannot model long -distance dependencies.
Thus, we should incorporate non-local infor-
mation into the model. For example, figure
1 shows the long -distance dependenc...
Tài liệu Báo cáo khoa học: "A Phonotactic Language Model for Spoken Language Identification" pptx
... June 2005.
c
2005 Association for Computational Linguistics
A Phonotactic Language Model for Spoken Language Identification
Haizhou Li and Bin Ma
Institute for Infocomm Research
Singapore ... to extracted information from acous-
tic model and n-gram LM for language l. We have
and
{,
AM
}
L
LM
lll
λλλ
=
( 1, , )
l
l
λ
∈Λ =
. A maxi-
mum-likelihood classifier can be formulated a...
Tài liệu Báo cáo khoa học: "A Localized Prediction Model for Statistical Machine Translation" ppt
... blocks for for which
.
560
4 Online Training of Maximum-entropy
Model
The local model described in Section 3 leads to the fol-
lowing abstract maximum entropy training formulation:
(8)
In this formulation, ... corresponding to la-
bel . The symbol is short-hand for the feature-
vector . This formulation is slightly differ-
ent from the standard maximum entropy formulation typ-
ically enco...
Từ khóa: