bulk processing of text
Tài liệu Báo cáo khoa học: "REQUIREMENTS OF TEXT PROCESSING LEXICONS " ppt
Ngày tải lên :
21/02/2014, 20:20
... resource of uncer-
tain value. Indeed, many who have analyzed
the contents of a dictionary have concluded
that it is of little value to linguistics or
artificial intelligence. Because of the ... representation of an entry in the lex-
icon to be used in natural language processing
systems. I describe herein what I have
learned from this type of effort.
I began with the objective of identifying ... suggest the poss-
ibility of using a parser to analyze the def-
initions of a word and thereby to create a
net which will be capable of discriminating
among all definitions of a word.
The following...
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Tapping into the Power of Text Mining
Ngày tải lên :
31/08/2012, 16:46
... and semantics of text, most text mining approaches
are based on the idea that a text document can be represented by a set of words, i.e.
a text document is described based on the set of words contained ... task of the vector space representation of documents is to find an appropriate
encoding of the feature vector.
Each element of the vector usually represents a word (or a group of words) of the
document ... that for many text mining tasks linguistic preprocessing is of
limited value compared to the simple bag -of- words approach with basic preprocessing.
The reason is that the co-occurrence of terms in...
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Tài liệu Báo cáo khoa học: "Automatic learning of textual entailments with cross-pair similarities" ppt
Ngày tải lên :
20/02/2014, 12:20
... head of constituents. The
example of Fig. 1 shows that the placeholder
0
climbs up to the node governing all the NPs.
5.3 Pruning irrelevant information in large
text trees
Often only a portion of ... direct
children of the nodes in N
. We apply such proce-
dure only to the syntactic trees of texts before the
computation of the kernel function.
6 Experimental investigation
The aim of the experiments ... ex-
amples of the previous section. From the point of
view of bag -of- word methods, the pairs (T
1
, H
1
)
and (T
1
, H
2
) have both the same intra-pair simi-
larity since the sentences of T
1
and...
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Tài liệu Báo cáo khoa học: "Robust Temporal Processing of News" pptx
Ngày tải lên :
20/02/2014, 18:20
... third (7 of 21, 5 of which
were of type TIME) of all missed time
expressions came from numeric expressions
being spelled out, e.g. “nineteen seventy-
nine”. More than two thirds (11 of 16) of the
time ... presence of a day of the week
expression (“Monday” thru “Sunday”) in the
same sentence
FW: “today” is the first word of the sentence
POS1: part -of- speech of the word before
“today”
POS2: part -of- speech ... Processing of
VERBMOBIL. Proceedings of the Fifth
Conference on Applied Natural Language
Processing, 1997, 33-40.
J. F. Allen. Maintaining Knowledge About
Temporal Intervals. Communications of...
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Tài liệu Báo cáo khoa học: "REPRESENTATION OF TEXTS FOR INFORMATION RETRIEVAL" pdf
Ngày tải lên :
21/02/2014, 20:20
... volume
constraints typical of DR systems. The modi~,cations
are designed to recognize such aspects of discourse
structure as establishment of topic; "setting of context;
summarizing; concept ... first and last sentences of the text.
These sentences may include the more important con-
cepts, and thus should be more heavily weighted.
2. Repeat first sentence of paragraph after the last ... and last sentence of the
text, or overweight the score for each cO-OCcurrence
containing a title word.
Concepts in the title are likely to be the most im-
portant in the text, yet are unlikely...
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Tài liệu Thermal Processing of Foods : Control and Automation ppt
Ngày tải lên :
21/02/2014, 22:20
... common
implementation of this type of control and it can be applied to many
types of heat exchangers. The cascade is not required, but does offer
the advantages of faster response and provides a view of the ... Trim: 229mm X 152mm
38 Thermal Processing of Foods
3.2. Critical factors in retort processing
3.2.1. Temperature measurement
The effect of temperature on the destruction of microorganisms can
be described ... maintain.
Installation of the instruments on a digital network can require just
one set of wires to connect the devices in series instead of one set
of wires per instrument. Maintenance is enhanced because of the
inherent...
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Tài liệu Báo cáo khoa học: "Predicting the fluency of text with shallow structural features: case studies of machine translation and human-written text" doc
Ngày tải lên :
22/02/2014, 02:20
... fluency of text with shallow structural features: case studies
of machine translation and human-written text
Jieun Chae
University of Pennsylvania
chaeji@seas.upenn.edu
Ani Nenkova
University of Pennsylvania
nenkova@seas.upenn.edu
Abstract
Sentence ... Correlations between text quality assess-
ment of the articles and the percentage of fluent
sentences according to different models.
text, and levels of fluency in the automatically pro-
duced text. The distinctions ... stretches of text. But
even in human written text, the presence of more
verbs can make a difference in fluency (Bailin and
Grafstein, 2001). Consider the following two sen-
tences:
• In his state of...
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Báo cáo khoa học: Autocatalytic processing of procathepsin B is triggered by proenzyme activity doc
Ngày tải lên :
07/03/2014, 03:20
... the formation of
a noncleavable procathepsin B mutant.
Next, we evaluated the activity of the mature forms
resulting from the processing of procathepsin B
mutants. All these forms of cathepsin ... mixture
(100 lL) contained 500 ng of a plasmid template, 50 pmol
of each of the three oligonucleotides (the two outer and a
mutagenic one), 20 nmol of each of the four deoxynucleo-
side triphosphates, ... respectively.
When specified, processing was accelerated by the addition
of dextran sulfate (25 lgÆmL
)1
) or decelerated by the addi-
tion of E-64 in the processing buffer. The final concentra-
tion of procathepsin...
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Báo cáo khoa học: A role for serglycin proteoglycan in granular retention and processing of mast cell secretory granule components ppt
Ngày tải lên :
07/03/2014, 11:20
... the amount of
actual sulfated PGs is not directly correlated with the
level of SG mRNA, and it was therefore of interest to
also follow the levels of sulfated PGs during the course
of MC differentiation. ... processing.
These findings indicate that the processing of pro-CPA
occurs in (at least) two steps, and that the processing
of the intermediate form of CPA to mature protease is
dependent on a ... dramatic effects of the SG
knockout on granular staining properties and storage of
proteases, it was first important to determine whether
the lack of SG affected the actual assembly of granules
and...
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Báo cáo khoa học: "A Computational Model of Text Reuse in Ancient Literary Texts" potx
Ngày tải lên :
08/03/2014, 02:21
... text, and the Gospel of
Mark as the source text.
We use a Greek New Testament corpus prepared
by the Center for Computer Analysis of Texts at the
University of Pennsylvania
3
, based on the text ... to a text- reuse
hypothesis y ∈ Y ∪ {}. X is the set of verses in
the target text. In our case, x
train
= (x
1
, . . . , x
458
)
is the sequence of verses in L
train
, and x
test
is that
of L
test
. ... de-
rived. If w
i
, w
j
are the vectors of words of a
4
Note that the training set consists of only one x
train
—
the Gospel of Luke. Luke’s only other book, the Acts of the
Apostles, contains few identifiable...
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Báo cáo khoa học: "Searching for Topics in a Large Collection of Texts" doc
Ngày tải lên :
08/03/2014, 04:22
... survey of some open ques-
tions. Finally, a short summary is given in sec-
tion 5.
2 Concept-formative clusters
2.1 Graph of a text collection
Let
be a collection of text
documents; is the size of ... parameter. This feature of the GRA
has been designed for the sake of generalization,
in order to not overfit the input sample.
The input of the GRA consists of (i) a sam-
ple set of document vectors ... limited number of non-
zero elements in the resulting vector. Formally,
gets on input
a set of vectors ;
a corresponding set of values to be
approximated; and
a set of indexes of the ele-
ments...
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Báo cáo khoa học: "Diagnostic Processing of Japanese for Computer-Assisted Second Language Learning" doc
Ngày tải lên :
08/03/2014, 05:20
... diag-
nostic processing of Japanese be-
ing able to detect errors and inap-
propriateness of sentences composed
by the students in the given situ-
ation and the context of the exer-
cise texts. Using ... con-
straints,
3. to communicate semantic contexts and
situations to the students through assist-
ing reading the texts by way of bidirec-
tionally linking the text words with an
electronic dictionary,
4. ... anaphora.
Acknowledgment
The authors are grateful to Prof. Jun-ichi
Tsujii, University of Tokyo, for discussing and
providing information on LTAG as well as the
status quo of natural language processing.
The work reported...
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Báo cáo khoa học: "Thematic segmentation of texts: two methods for two kinds of texts" pdf
Ngày tải lên :
08/03/2014, 05:21
... different
kinds of texts. We will discuss these results and
give criteria to choose the more suitable
method according to text characteristics.
3. Pre -processing of the texts
As we are interested ... thematic dimension
of the texts, they have to be represented by
their significant features from that point of
view. So, we only hold for each text the
lemmatized form of its nouns, verbs ... =(gil,gi2, ,git)
where
gi
is the number of
occurrences of a given descriptor in
Gi.
The descriptors are the words extracted by the
pre -processing of the current text. Term
vectors are weighted....
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Báo cáo khoa học: "Discourse Processing of Dialogues with Multiple Threads" pot
Ngày tải lên :
08/03/2014, 07:20
... Implications of this model of Attentional
State are explored more fully in (Rosd 1995).
3 Discourse Processing
We evaluated the effectiveness of our theory of dis-
course structure in the context of ... set of di-
alogues, performance in terms of attaching the cur-
rent chain of inference to the correct place in the
plan tree for the purpose of augmenting temporal
expressions from context ... theory of discourse structure in
the spirit of (Grosz and Sidner 1986) which has
played an influential role in the analysis of discourse
entity saliency and in the development of dialogue
processing...
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Báo cáo khoa học: "PREDICTIVE COMBINATORS A METHOD PROCESSING OF COMBINATORY CATEGORIAL GRAMMARS" doc
Ngày tải lên :
08/03/2014, 18:20
... he of a more complex sort, namely, one of the so-called
functor
categories. Functor categories are of the form XIY ,
which is viewed as a function from categories of type Y to
categories of ... even though
they may or may not be weakly context-free, nevertheless
can make use of many of the parsing techniques that have
been developed for context-free grammars since the ap-
plicability ... EFFICIENT
PROCESSING OF COMBINATORY
CATEGORIAL GRAMMARS
Kent Wittenburg
MCC, Human Interface Program
3500 West Balcones Center Drive
Austin, TX 78759
Department of Linguistics
University of Texas...
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