unification with lazy nonredundant copying
Báo cáo khoa học: "UNIFICATION WITH LAZY NON-REDUNDANT COPYING" potx
Ngày tải lên :
17/03/2014, 08:20
...
Conclusion
The lazy- incremental copying (LIC) method used
for the unification algorithm combines incremen-
tal copying with lazy copying to achieve structure
sharing. It eliminates redundant copying ... minimize the
amount of necessary copying. Lazy In-
cremental Copying (LIC) is presented as
a new solution to the copying problem.
It synthesizes ideas of lazy copying with
the notion of chronological ... the argument DGs.
Incremental Copying
Wroblewski's nondestructive graph unification
with incremental copying eliminates early copy-
ing and avoids over copying. His method pro-
duces...
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Tài liệu Báo cáo khoa học: "HORN EXTENDED FEATURE STRUCTURES: FAST UNIFICATION WITH NEGATION AND LIMITED DISJUNCTION" ppt
Ngày tải lên :
22/02/2014, 10:20
... there is a highly tractable
algorithm for the unification of HoXF's.
1.
PRELIMINARY CONCEPTS
1.1 Unification- based grammar formalisms
Unification- based grammar formalisms constitute ... not
yet actually part of it. The root node is denoted by
®, and nodes with value T are denoted with a Note
that paths with common virtual end labels
(e.g., AA
and B) are not coalesced; virtual ... queue. In other
words, we perform a unification to match common in-
formation, and then continue with the inference pro-
cess.
4.6 The complexity of the unification algo-
rithm Define the...
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Tài liệu Báo cáo khoa học: "Translating a Unification Grammar with Disjunctions into Logical Constraints" pdf
Ngày tải lên :
20/02/2014, 18:20
... to understand. Parsing with
term-based internal representations is more efficient than
parsing with graph-based representations. Therefore, it
is effective to translate unification grammar formalism ... represents a disjunct.
3.2 Unification by Logical Constraint
Transformation
Unification of DFSs corresponds to logical constraint
satisfaction. For example, the unification of DFSs
p(X)
and ... D6rre and Andreas Eisele. 1990. Feature logic
with disjunctive unification. In COLING-90, vol-
ume 2, pages 100-105.
A. Eisele and J. D6rre. 1988. Unification of disjunctive
feature descriptions....
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Tài liệu Báo cáo khoa học: "RELATING COMPLEXITY TO PRACTICAL PERFORMANCE IN PARSING WITH WIDE-COVERAGE UNIFICATION GRAMMARS" pptx
Ngày tải lên :
20/02/2014, 21:20
... realistic, complex unification- based gram-
mars: in particular, with grammars admitting less
ambiguity parse time will tend to increase more
slowly with increasing input length, and also with
smaller ... given point with rules with the
same number of daughters, the packed sequences
can be formed into higher-level constituents as
they stand without further processing. However,
in the unification ... made.
Other research directed towards improving
the throughput of unification- based parsing sys-
tems has been concerned with the unification oper-
ation itself, which can consume up to 90% of...
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Báo cáo khoa học: "A Lazy Way to Chart-Parse with Categorial Grammars" ppt
Ngày tải lên :
17/03/2014, 20:20
...
equivalent Reductions with the subject
John
to yield S one
with its ground np type, and one with its raised type, s/(s~np).
Only one of these is effected, because of a detail dealt with in
the next ... label is associated with
one and only one value
We use round brackets to def'me sets, and we notate features as
[label value].
We refer to variables with symbols starting with
capital letters, ... and to labels and constants with symbols start-
ing with lower-case letters. The following is an example of a
dag:
(7)
(
[a
e]
[b
([c
x]
[d f])])
Like other unification based grammars,...
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Báo cáo khoa học: "Lexicon acquisition with a large-coverage unification-based grammar" pot
Ngày tải lên :
17/03/2014, 22:20
... processed in a unification- based
framework with large-coverage gram-
mars and how from their usage lexi-
cal entries are extracted. To keep the
time and space usage during parsing
within bounds, ... acquired lexical
entries, and the efficiency with which parsing with
unknown words takes place.
We have already discussed where the ambiguity
arises with unknown words. One of the goals that
we ... importance of the problem.
For unification- based implementations, which
often refer to linguistic theories and are therefore
rich in information, one approach to deal with un-
known words has been...
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Báo cáo khoa học: "LAZY UNIFICATION" pptx
Ngày tải lên :
24/03/2014, 02:20
...
J l~
Unification
•
Copying
[] Other I "
Figure 7. Relative Cost of Operations
with Lazy Unification
Lazy Unification copies less than 7% of
the nodes copied under eager unification. ...
EFFECTIVENESS OF LAZY
UNIFICATION
Lazy Unification results in an impressive
reduction to the amount of copying during
parsing. This in turn reduces the overall
slice of parse time consumed by copying ... real copying than reversible
unification.
Let us look again at DAG a in Figure 2
and discuss a potential problem with lazy
unification as described thus far. Let us
suppose that through unification...
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Open distributed automation and control with iec 61499.pdf
Ngày tải lên :
20/08/2012, 11:15
... DISTRIBUTED AUTOMATION AND CONTROL WITH IEC 61499
JHC/2001-04-03 p. 18
Open Distributed Automation and Control
with IEC 61499
Open Distributed Automation and Control
with IEC 61499
• Background
• ... IEC 61499
JHC/2001-04-03 p. 2
Open Distributed Automation and Control
with IEC 61499
Open Distributed Automation and Control
with IEC 61499
• Background
• Architecture
• Object Models
• Software ... OPEN DISTRIBUTED AUTOMATION AND CONTROL WITH IEC 61499
JHC/2001-04-03 p. 20
Software Tool Models
Software Tool Models
OPEN DISTRIBUTED AUTOMATION AND CONTROL WITH IEC 61499
JHC/2001-04-03 p. 2
Open...
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Building Portals with the Java Portlet API
Ngày tải lên :
20/08/2012, 11:54
... book. If you are not familiar with Ant, we rec-
ommend you check out Java Development with Ant by Erik Hatcher and Steve
Loughran (Manning, 2002) or Extreme Programming with Ant by Glenn Niemeyer
and ... 26
Download at Boykma.Com
Chapter 14: Charting with JFreeChart
We apply the open source JFreeChart project to provide professional data-charting
capabilities within a portlet.
Chapter 15: Content Management ... . . . . . . . . . . . 5
Building Portlets with the Portlet API
. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Providing Technical Solutions with Portals
. . . . . . . . . . . . . . ....
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Client Side Reporting with Visual Studio in S Sharp
Ngày tải lên :
20/08/2012, 13:42
... to share reports with large numbers of users. In Chapter 5, you’ll create an
A
SP.NET web site project with VS RS and host the report using the ReportViewer control on the
page. With VS RS, you ... server with little effort.
Because RDL is XML based, it is easy for third-party vendors to come up with RS exten-
sions. For example, how about printing a barcode? Well, that’s easy enough with ...
Third-Party Tools and Having Fun with RS
This chapter will highlight the use of third-party tools integrated with client-side RS. You’ll see
how easy it is to create reports with graphical barcodes....
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Creating Cool Web Sites with HTML, XHTML, and CSS
Ngày tải lên :
27/08/2012, 09:03
... 64
Adding comments within CSS . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Compatible style blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Text Formatting with CSS . ... . . . . . . . . . . . . . 278
Hide Containers with the Visibility: Attribute . . . . . . . . . . . . . . . . . . . . . 279
Controlling visibility with JavaScript . . . . . . . . . . . . . . . ... 13: Site Development with Weblogs . . . . . . . . . . . . . . . . . 293
What Is a Weblog? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Working with a Weblog . . . ....
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