exploiting the derivation tree
Báo cáo khoa học: "Parsing preferences with Lexicalized Tree Adjoining Grammars : exploiting the derivation tree" pptx
Ngày tải lên :
17/03/2014, 07:20
... shape of derivation trees :
1. Prefer the derivation tree with the fewer
number of nodes
2. Prefer to attach an m -tree low 6
3. Prefer the derivation tree with the fewer
number of 13 -tree nodes ... -the
~referred derivation tree
I
IDispreferred derivation tree
[
$
Adv S
Yesterday N V N
John kicked Det N
I I
the bucket
[ Both derivation trees yield the same derived tree [
FIGURE ... inserting
in a tree in place of a node X an auxiliary tree
with a root of same category. The descendants of
X then become the descendants of the foot node
of the auxiliary tree. Contrary to...
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Tài liệu Andersen’s Fairy Tales THE FIR TREE doc
Ngày tải lên :
14/12/2013, 08:15
... still on the ugly old Christmas tree! ’ said he, trampling
on the branches, so that they all cracked beneath his feet.
And the Tree beheld all the beauty of the flowers, and the freshness in the ... always
the finest looking, retained their branches; they were laid on carts, and the
horses drew them out of the wood.
‘Where are they going to?’ asked the Fir. ‘They are not taller than I; there ... too.’ And the whole night the Tree stood still
and in deep thought.
In the morning the servant and the housemaid came in.
‘Now then the splendor will begin again,’ thought the Fir. But they dragged...
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Tài liệu THE JUNIPER-TREE -GRIMM''''S FAIRY TALE ppt
Ngày tải lên :
21/01/2014, 03:20
...
beautifully it sings.’ Then he called his daughter and the children, then the
apprentices, girls and boys, and they all ran up the street to look at the bird,
The bird came down, and all the twenty millers ... death.
The father and little Marleen heard the sound and ran out, but they only saw
mist and flame and fire rising from the spot, and when these had passed,
there stood the little brother, and ... she wrapped all the bones from under the table and
carried them outside, and all the time she did nothing but weep. Then she
laid them in the green grass under the juniper- tree, and she had...
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Tài liệu Báo cáo khoa học: "An Implemented Description of Japanese: The Lexeed Dictionary and the Hinoki Treebank" ppt
Ngày tải lên :
20/02/2014, 12:20
... we
base the first growth of our treebank on the dic-
tionary definition sentences themselves. We then
train a statistical model on the treebank and parse
the entire lexicon. From this we induce a the-
saurus. ... and part of speech, all the
underlined features
are those added by the Hinoki project.
3 The Hinoki Treebank
The structure of our treebank is inspired by the
Redwoods treebank of English (Oepen ... log
2
in the length of the sentence
(Tanaka et al., 2005). Because the disambiguat-
ing choices made by the annotators are saved, it
is possible to semi-automatically update the tree-
bank when the...
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Tài liệu Báo cáo Y học: Expression and characterization of active site mutants of hevamine, a chitinase from the rubber tree Hevea brasiliensis docx
Ngày tải lên :
22/02/2014, 04:20
... residue
polarizes the N-acetyl group to a greater extent, thereby
enhancing the reactivity of the carbonyl oxygen atom
(Fig. 4). Alternatively, the Asp125Asn mutation may affect
the pK
a
of the Glu127 ... Groningen, the Netherlands
Hevamine is a chitinase from the rubber tree Hevea brasil-
iensis. Its active site contains Asp125, Glu127, and T yr183,
which interact with the )1 sugar residue of the substrate. ... pmol for the Tyr183Phe
and Asp125Asn mutants, respectively. At these protein
concentrations, there is a reasonable linear relationship
between the absorbance and the enzyme activity.
The second...
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Đề tài " The derivation problem for group algebras " pot
Ngày tải lên :
06/03/2014, 08:21
... trivial on
the points in the supports of the invariant measures). On the infinite part
M(Ω)
inf
the corresponding isomorphism has norm 2 whenever M(Ω)
inf
= (0).
On the other hand, there exist ... )
2
,
K
∞
= Ω (these are all the closed H-invariant subgroups of T
2
). Then the
extreme points are just the normalized Haar measures of the compact groups
K
n
(n =0, 1, ,∞) and M (Ω)
inv
is the norm-closed ... follows easily from the invariance of the mean that for
any μ
in the closed convex hull of Φ(G) (by classical results, the weak closure
coincides with the norm closure) the function x →h,x◦...
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Báo cáo khoa học: "Exploring and Exploiting the Limited Utility of Captions in Recognizing Intention in Information Graphics∗" pdf
Ngày tải lên :
08/03/2014, 04:22
... stable),
where the change in trend occurred, the end of the
second trend, and the slope of the second trend. If
there was disagreement between the coders on either
the intention or the instantiation of the ... case. The system was
judged to fail if either its top-rated hypothesis did
not match the intended message that was assigned
to the graphic by the coders or the probability rat-
ing of the system’s ... in the caption of graphics
whose message was judged to convey the entity with
the minimum value and in the caption of graphics
pear on the bars and sometimes next to them, and the heading
for the...
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Báo cáo khoa học: "A Compacting the Penn Tree bank Grammar" doc
Ngày tải lên :
08/03/2014, 05:21
...
Abstract
Treebanks, such as the Penn Treebank (PTB),
offer a simple approach to obtaining a broad
coverage grammar: one can simply read the
grammar off the parse trees in the treebank.
While ... gives further support to
the utility of treebank grammars and to the
compaction method. For example, compaction
methods can be applied within the DOP frame-
work to reduce the number of trees. ...
Conclusions
We see the principal results of our work to be
the following:
* the result showing continued square-root
growth in the rule set extracted from the
PTB II;
• the analysis of the source...
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The rubber-tree boom in Cambodia: Assessing small landholders’ optimism potx
Ngày tải lên :
08/03/2014, 10:20
... which
they clear land or harvest for other households, and then return to their homeland where
they own their land. Many migrants have settled in Ratanakiri where they have opened
the numerous ... days and then go” as “they have then the money they need” or “because they have
farm work on their land”, to which they give priority. Recruiters argue that they cannot
12
Interviews with ... were the first and participated the most in the
rubber boom, as well as a fraction of the Khmer immigrants who acquired land. On the
other side, developing rubber remains very uncertain for the...
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Báo cáo khoa học: "Using Derivation Trees for Treebank Error Detection" potx
Ngày tải lên :
17/03/2014, 00:20
... a1, a2, a3, which are the
nodes in the derivation tree which show how the
three etrees connect to each other. This derivation
tree consists of just tree substitutions. The ˆ sym-
bol at node ... “elementary trees” (ab-
breviated “etrees” in the rest of this paper) that are
the “building blocks” of the full trees of a treebank.
This decomposition of the full tree into etrees also
results in a derivation ... decompose a full tree and
extract the etrees. The three derivation trees, corre-
sponding to (2abc), are shown in Figure 1.
Consider first the derivation tree for (2a). It has
three etrees, numbered...
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Báo cáo khoa học: "Construct State Modification in the Arabic Treebank" doc
Ngày tải lên :
17/03/2014, 02:20
... the modifier.
Lex Pairs the headword of the modifier with the
noun it is modifying.
TotDepth Conjunction of the attachment location,
the AttSym feature, and the total depth of the
iDAfa.
211
Proceedings ... modification, meaning
the streets of the city of Long Beach in the state of Cali-
fornia
al., 1995) forces multiple PP modifiers of the same
NP to be at the same level, disallowing the struc-
ture (B) ... in the
PTB, while it is the 16th most frequent dependency
in the ATB, and that the performance of the parser
they worked with (the Bikel implementation (Bikel,
2004) of the Collins parser) was...
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Báo cáo khoa học: "Parsing with Treebank Grammars: Empirical Bounds, Theoretical Models, and the Structure of the Penn Treebank" ppt
Ngày tải lên :
17/03/2014, 07:20
... shows the effect of the tree transforms on
traversal counts. The NOUNARIES settings are much
more efficient than the others, however this efficiency
comes at a price in terms of the utility of the ... NN:[2,3])
3.1 Time
The parser has an theoretical time bound,
where is the number of words in the sentence to be
parsed, is the number of nonterminal categories in
the grammar and is the number of ... asymptotic bound,
there are good explanations for the observed behav-
ior. There are two primary causes for the super-cubic
time values. The first is theoretically uninteresting.
The parser is implemented...
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