Tài liệu Báo cáo khoa học: "Unsupervised Topic Modelling for Multi-Party Spoken Discourse" ppt
Tài liệu Báo cáo khoa học: "Unsupervised Topic Modelling for Multi-Party Spoken Discourse" ppt
... Association for Computational Linguistics
Unsupervised Topic Modelling for Multi-Party Spoken Discourse
Matthew Purver
CSLI
Stanford University
Stanford, CA 94305, USA
mpurver@stanford.edu
Konrad ... simultaneously address the prob-
lems of topic segmentation and topic
identification: automatically segmenting
multi-party meetings into topically co-
herent segments with perfor...
Tài liệu Báo cáo khoa học: "Unsupervised Translation Induction for Chinese Abbreviations using Monolingual Corpora" ppt
... approach is to transform the abbreviation
425
into its full-form for which the current SMT system
knows how to translate. For example, if the baseline
system knows that the translation for “ ” is
“Hong ... Performance
4.5.1 Precision on Translations of Chinese
Full-form Phrases
For the relations manually tagged as correct in
Section 4.4, we manually look at the top-5 transla-
tion...
Tài liệu Báo cáo khoa học: "Bilingual Sense Similarity for Statistical Machine Translation" ppt
... co-occurrence counts of the two
units. Therefore, questions emerge: how good is
the sense similarity computed via VSM for two
units from parallel corpora? Is it useful for multi-
lingual applications, ... (WSD) techniques in
SMT for translation selection. However, WSD techniques
for SMT do so indirectly, using source-side context to help
select a particular translation for a so...
Tài liệu Báo cáo khoa học: " A Declarative Language for Implementing Dynamic Programs∗" pptx
... acquire more over time: we in-
tend for it to generalize and encapsulate best practices,
and serve as a testbed for new practices. Dyna is now be-
ing used for parsing, machine translation, morphological
analysis, ... probabilities, which
permits heuristic early stopping before the agenda is
empty. With viterbi values, it amounts to uniform-cost
search for the best parse, and an item’...
Tài liệu Báo cáo khoa học: "Using Confidence Bands for Parallel Texts Alignment" pptx
... longer afford to waste human time and effort
building manually these ever changing and in-
complete databases or design language specific
applications to solve this problem. The need for
an automatic ... brackets).
For average size texts (e.g. the Written Ques-
tions), these words account for about 5% of the
total (about 3k words / text). This number varies
according to language similar...
Tài liệu Báo cáo khoa học: "AN INDEXING TECHNIQUE FOR IMPLEMENTING COMMAND RELATIONS" ppt
... requierments for the formalism
used. Hence, the indexing technique has a wide
spectrum of applications for testing command
relations in syntactic analysis. Futhermore, this
method can also be used for ... special cases of definitions
1.1 and 1.2 for the property of being a set of
maximal projections.
Before I formulate the general command definition
in a formal way, I will now...
Tài liệu Báo cáo khoa học: "Translation Model Adaptation for Statistical Machine Translation with Monolingual Topic Information" doc
... context in-
formation at the sentence level, we adopt the
topical context information in our method for
the following reasons: (1) the topic informa-
tion captures the context information beyond
the ... spe-
cific topical contexts, and the topical context infor-
mation has a great effect on translation selection.
For example, “bank” often occurs in the sentences
related to the economy t...
Tài liệu Báo cáo khoa học: "A Statistical Model for Unsupervised and Semi-supervised Transliteration Mining" pptx
... labelled information for training. Our sys-
tem extracts transliteration pairs in an unsupervised
fashion. It is also able to utilize labelled information
if available, obtaining improved performance.
We ... of the Association for Computational Linguistics, pages 469–477,
Jeju, Republic of Korea, 8-14 July 2012.
c
2012 Association for Computational Linguistics
A Statistical Model for...
Tài liệu Báo cáo khoa học: "Unsupervised Semantic Role Induction with Global Role Ordering" doc
... PARAMETERS —————–
for all predicate p do
for all voice vc ∈ {active, passive} do
draw θ
order
p,vc
∼ Dirichlet(α
order
)
for all interval I do
draw θ
SR
p,I
∼ Dirichlet(α
SR
)
for all adjacency ... the ordering of core roles is important
information for SRL systems, and (ii) the intervals
bounded by core roles provide good context infor-
mation for classification of other roles.
4...
Tài liệu Báo cáo khoa học: "Unsupervised Discourse Segmentation of Documents with Inherently Parallel Structure" pdf
... part-specific topic proportions β
(k)
∼
GEM(α
(k)
) for k ∈ {1, . . . , K}.
• Choose the part-specific language models φ
(k)
i
∼
Dir(γ
(k)
) for k ∈ {1, . . . , K} and i ∈ {1, 2, . . .}.
• For each ... parts.
The formal definition of our model is as follows:
• Draw the document-level topic proportions β
(doc)
∼
GEM(α
(doc)
).
• Choose the document-level language model φ
(doc)
i
∼
Dir(γ...