weakly supervised partofspeech tagging
Tài liệu Báo cáo khoa học: "Weakly Supervised Named Entity Transliteration and Discovery from Multilingual Comparable Corpora" ppt
Ngày tải lên :
20/02/2014, 12:20
... the ACL, pages 817–824,
Sydney, July 2006.
c
2006 Association for Computational Linguistics
Weakly Supervised Named Entity Transliteration and Discovery from
Multilingual Comparable Corpora
Alexandre ... employ machine learning techniques
and require supervised data. However,
many languages lack such resources. This
paper presents an (almost) unsupervised
learning algorithm for automatic discov-
ery ... entirely translated. We take advantage of
dynamically growing feature space to reduce the
number of supervised training examples.
3 Co-Ranking: An Algorithm for NE
Discovery
3.1 The algorithm
In essence,...
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Tài liệu Báo cáo khoa học: "Syntax-based Semi-Supervised Named Entity Tagging Behrang Mohit" ppt
Ngày tải lên :
20/02/2014, 15:20
... tagging is the task of recogniz-
ing and classifying phrases into one of many se-
mantic classes such as persons, organizations and
locations. Many successful NE tagging systems
rely on a supervised ... experimental results suggest
that a semi -supervised NE tagger can be success-
fully developed using syntax-rich features.
2 Previous Works and Our Approach
Supervised NE Tagging has been studied exten-
sively ... Arbor, June 2005.
c
2005 Association for Computational Linguistics
Syntax-based Semi -Supervised Named Entity Tagging
Behrang Mohit
Rebecca Hwa
Intelligent Systems Program Computer Science...
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Semi – supervised learning
Ngày tải lên :
25/04/2013, 19:30
... learning
Chương II: HỌC NỬA GIÁM SÁT
(Semi -supervised learning )
I. TỔNG QUAN
1.1 Giới thiệu về học có giám sát (supervised learning) và không có giám
sát (unsupervised learning)
a. Học có giám sát: ... máy
Chương II: HỌC NỬA GIÁM SÁT(Semi -supervised learning )
I. TỔNG QUAN
1.1 Giới thiệu về học có giám sát (supervised learning) và không có giám sát
(unsupervised learning)
a. Học có giám ... quyết bài toán.
I. KẾT QUẢ BAN ĐẦU ĐÃ ĐẠT ĐƯỢC
II. HƯỚNG PHÁT TRIỂN
SEMI – SUPERVISED LEARNING
MỤC LỤC
Semi – supervised learning 1
Chương I: GIỚI THIỆU VỀ MÁY HỌC 4
( Machine learning ) 4
I...
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Semi - Supervised learning
Ngày tải lên :
27/04/2013, 21:02
... 12
Chng II: HC NA GIM ST 14
(Semi -supervised learning ) 14
I. TNG QUAN 14
1.1 Gii thiu v hc cú giỏm sỏt (supervised learning) v khụng cú giỏm sỏt
(unsupervised learning) 14
a. Hc cú giỏm ... 14
Chương II: HỌC NỬA GIÁM SÁT
(Semi -supervised learning )
I. TỔNG QUAN
1.1 Giới thiệu về học có giám sát (supervised learning) và khơng có giám
sát (unsupervised learning)
a. Học có giám ... loi theo kt qu mong mun ca thut
toỏn. Cỏc loi thut toỏn thng dựng bao gm:
ã
Hc cú giỏm sỏt (supervised learning) trong ú, thut toỏn to ra
mt hm ỏnh x d liu vo ti kt qu mong mun. Mt phỏt biu...
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Weakly Typed Object SQL
Ngày tải lên :
29/09/2013, 09:20
... its class name. For example, type person_typ, which has a static method
Chapter 15. Weakly Typed Object SQL
Weakly typed object SQL refers to the use of structures, arrays, and references to ... database. In this chapter, we'll concentrate on the weakly typed solutions for
doing this. Let's begin our journey into the weakly typed objects with the Struct object.
15.2 Structs ... up to you, the
programmer, to properly cast each object value as it is used. Hence, a Struct is weakly typed.
If, in turn, an attribute of the Struct represents another structured SQL data type,...
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Tài liệu Minimally Supervised Event Causality Identification ppt
Ngày tải lên :
19/02/2014, 18:20
... To the
best of our knowledge, this formulation of the
task is novel.
• We developed a minimally supervised ap-
proach for the task using focused distributional
similarity methods that are automatically ... task, and a minimal
set of development documents for threshold tuning,
we developed a minimally supervised approach to
identify causality relations between events in con-
text. We also showed ... model to predict causal potential. In CI-
CLING.
Cosmin Adrian Bejan and Sanda Harabagiu. 2010. Un-
supervised event coreference resolution with rich lin-
guistic features. In ACL.
Nathanael Chambers...
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Tài liệu Semi-supervised Adapted HMMs for Unusual Event Detection docx
Ngày tải lên :
19/02/2014, 18:20
... test set
method
usual unusual usual unusual
our approach 90000 NA
supervised- 1 90000 20000
supervised- 2 90000 2000
72750 2250
unsupervised NA NA
event, while all the other events are considered ... see that the supervised HMM with sufficient
amount of training data gives the best performance. The
proposed approach improves the performance, compared to
the supervised- 2 and unsupervised baselines. ... 9
0
0.1
0.2
0.3
0.4
0.5
iteration
FAR
FRR
HTER
(a)
1 2 3 4 5 6 7 8 9
0
0.1
0.2
0.3
0.4
iteration
HTER (our method)
HTER (supervised 1)
HTER (supervised 2)
HTER (unsupervised)
(b)
Figure 4. Results for audio unusual event detection. The X-axis
represents...
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Tài liệu Báo cáo khoa học: "A Statistical Model for Unsupervised and Semi-supervised Transliteration Mining" pptx
Ngày tải lên :
19/02/2014, 19:20
... pre-
vious unsupervised system, and unlike the super-
vised and semi -supervised systems we mentioned,
our model can be used for both unsupervised and
semi -supervised mining in a consistent way.
3 Unsupervised ... with the unsupervised mining sys-
tem of Sajjad et al. (2011), the best supervised
and semi -supervised systems presented at NEWS10
(Kumaran et al., 2010b) and the best supervised and
semi -supervised ... the unsupervised and semi-
supervised systems achieve higher accuracy than the
only unsupervised transliteration mining system we
are aware of and are competitive with the state-
of-the-art supervised...
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Tài liệu Báo cáo khoa học: "Fast and Robust Part-of-Speech Tagging Using Dynamic Model Selection" pptx
Ngày tải lên :
19/02/2014, 19:20
... tagging
algorithm using bidirectional dependency networks,
and showed the best contemporary results. Gim
´
enez
and M
`
arquez (2004) used one-pass, left-to-right
and right-to-left combined tagging ... Computational Linguistics,
ACL’07, pages 760–767.
Anders Søgaard. 2011. Semi -supervised condensed
nearest neighbor for part-of-speech tagging. In Pro-
ceedings of the 49th Annual Meeting of the Associa-
tion ... approach, coupled with a one-pass, left-
to-right POS tagging algorithm, is evaluated
on corpora from seven different genres. Even
with this simple tagging algorithm, our sys-
tem shows comparable...
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