advanced parsing with regular expressions

... valid FSIG regular expressions The language consisting of the empty string is denoted with E (or [] in the FSIG notation) In addition to the simple operators (Table 1) that combine expressions ... = [El U {@,@/} U e d r Finally, FSIG regular expressions may contain user-defined macros as subexpressions They can have a constant value or take other expressions as arguments 381 0], Figure ... corresponds to the following star-free regular expressions: ,[[< d RLrd = u [@ ] ' R clause 3.3 The constant expressions U [@ = It is pretty easy to see that the expressions @ ° and @ are star-free...

Ngày tải lên: 08/03/2014, 21:20

... create regular expressions, but we haven't examined how those regular expressions can actually be used in JavaScript code In this section, we discuss methods of the String object that use regular expressions ... that contains the body of the regular expression the text that would appear within slashes in a regular expression literal Note that both string literals and regular expressions use the \ character ... should not be escaped with a backslash To include a backslash character literally in a regular expression, you must escape it with a backslash, of course For example, the following regular expression...

Ngày tải lên: 05/10/2013, 13:20

... reg006.php // Simple Regular Expressions in PHP // Copyright http://curl.phptrack.com // This example will match a string string with // some text and ending with some text PHP/CURL Book with Examples ... PHP/CURL Book with Examples !R R & & !R / * & + & & & &!") !R && R = ) !R R & & &- & ,

Ngày tải lên: 06/10/2013, 09:20

... material to look at and talk about Sometimes candidates will talk with the other candidates, sometimes with the examiner and sometimes with both Grading The overall CAE grade is based on the total ... movement - claims, with 250,000 members globally, to be the largest book group in the world Here's how it works You register with the site (www.bookcrossing.com), tag one of your books with a special ... necessary work, and allow you to get to grips with the real nitty-gritty and keep a good overview without getting bogged down by details And when you are dealing with money from the public, it is always...

Ngày tải lên: 10/10/2013, 22:20

... clear with an example Let's revisit the compact regular expression you've been working with, and make it a verbose regular expression This example shows how Example 7.9 Regular Expressions with ... alternate syntax that can help keep your expressions maintainable 7.5 Verbose Regular Expressions So far you've just been dealing with what I'll call “compact” regular expressions As you've seen, they ... the backslash plague, and it is one reason why regular expressions are easier in Perl than in Python On the down side, Perl mixes regular expressions with other syntax, so if you have a bug, it...

Ngày tải lên: 14/12/2013, 14:15

... in the database The C# code is shown in Example 6-25 Example 6-25 File: EnforceBusinessRulesWithColumnExpressionsForm.cs // Namespaces, variables, and constants using System; using System.Configuration; ... "@Field1"; private const String FIELD2_PARM = "@Field2"; // private void EnforceBusinessRulesWithColumnExpressionsForm_Load( object sender, System.EventArgs e) { DataColumnCollection cols; // Build ... ) method before the command to update a row is executed against the data source The event fires with each row update attempt The RowUpdating event handler receives an argument of type RowUpdatingEventArgs...

Ngày tải lên: 21/01/2014, 11:20

... Introduction to Regular Expressions Regular Expressions Defined Search and Replace with Regular Expressions Tools for Working with Regular Expressions Basic Regular ... 1.9 regular expressions Tools for Working with Regular Expressions Unless you have been programming with regular expressions for some time, we recommend that you first experiment with regular expressions ... regex flavors use ‹(?s)› Regular Expressions Defined | www.it-ebooks.info Search and Replace with Regular Expressions Search-and-replace is a common job for regular expressions A search-and-replace...

Ngày tải lên: 16/02/2014, 13:20

... different implementations of regular expressions You will find regular expressions used in Unix command-line tools like vi (vim), grep, and sed, among others You will find regular expressions in programming ... the Lines of the Poem with sed Appending Tags Using a Command File with sed Transforming Plain Text with Perl Handling Roman Numerals with Perl Handling a Specific Paragraph with Perl Handling the ... Document with HTML 87 Matching Tags Transforming Plain Text with sed Substitution with sed Handling Roman Numerals with sed Handling a Specific Paragraph with...

Ngày tải lên: 18/02/2014, 06:20

Ngày tải lên: 18/02/2014, 06:20

... these as just one benefit of working within a general theory: contributions are more broadly applicable Meaning representations and regular tree grammars In semantic parsing, an MR is typically an ... either by pre -parsing or because they are already trees (often the case for functional languages like LISP).1 More specifically, we assume the MR language is a regular tree language A regular tree ... a pattern with which to expand it and then filling out that pattern with words drawn from a unigram distribution This kind of coupled generative process can be naturally formalized with tree transducer...

Ngày tải lên: 19/02/2014, 19:20

... CCGbank, the Petrov parser on CCGbank without features and the Clark and Curran parser using the two models All training and parsing was done on a 64-bit machine with dual core 2.8 Ghz Opteron 8220 ... efficient statistical parsing with CCG and Log-Linear models Computational Linguistics, 33(4):493–552 S Clark, J Hockenmaier, and M Steedman 2002 Building deep dependency structures with a widecoverage ... reversed Thus, by proposition 2, the CFG has exactly the same derivations as the CCG 338 Without such an assumption, parsing is intractable Schema Class Application Composition Crossed Composition Reducing...

Ngày tải lên: 20/02/2014, 04:20

... with transition-based dependency parsing yields results comparable with the state-of-theart results achieved with Support Vector Machines - with faster training and parsing times Currently we need ... various results of our experiments with using CW-classifiers in transitionbased parsing 5.1 80.0 4.2 Training Parsing SVM 75 29 CW 1.5 Table 1: Training and parsing time on Danish data 5.3 Pruning ... feature selection has been used for languages marked with an * curacy a lot In this section we will compare results obtained with CW-classifiers with the results for the MaltParser from CoNNL-X In...

Ngày tải lên: 20/02/2014, 04:20

... for Statistical Parsing with Combinatory Categorial Grammar In Proceedings of the 40th Annual Meeting of the ACL Julia Hockenmaier 2003 Data and Models for Statistical Parsing with CCG Ph.D thesis, ... derivation tree itself It assumes that binary trees (with parent category È ) have one head child (with category À ) and one nonhead child (with category ), and that each node has one lexical ... times it occurs with lex- ical category and is the th argument of the lexical functor ¼ Û¼ in question, divided by the number of times the th argument of ¼ Û¼ is instantiated with a constituent...

Ngày tải lên: 20/02/2014, 16:20

... extracted grammars They not report parsing results, though their intention is to evaluate how the various grammars a ect parsing accuracy and how k-best supertagging a fects parsing speed Srinivas's work ... of the Penn Treebank The extracted grammar is large about 73,000 trees, with words seen fewer than four times replaced with the symbol *UNKNOWN*, but if we 1 10 100 Rank 1000 10000 Figure 4: ... the parser will use other trees to produce the correct bracketing 10000 Types 1000 100 5.2 Parsing with the grammar 10 1 10 100 1000 Tokens 10000 100000 1e+06 Figure 5: Growth of grammar during...

Ngày tải lên: 20/02/2014, 18:20

... all reductions at a 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, ... sentences with the BU-LC and LR parsers A quadratic function is also displayed N > curate to predict how the properties of individual unification-based grammars will interact with particular parsing ... probabilistic LR parsing of natural language (corpora) with unification-based grammars." Computational Linguistics, 19(1): 25-59 Carroll, J (1993) Practical unification-based parsing of natural...

Ngày tải lên: 20/02/2014, 21:20

... text-level discourse parsing is crucial Unlike syntactic parsing, where we are almost never interested in parsing above sentence level, sentence-level parsing is not sufficient for discourse parsing While ... discourse parsing is consistently inferior to that within individual sentences, and we will briefly discuss what the key difficulties with extending sentence-level to text-level discourse parsing ... sentence-level and text-level parsing, since in PDTB, discourse relations are annotated at a level no higher than that of adjacent sentences Here we are concerned with RST-style discourse parsing 62 the full...

Ngày tải lên: 07/03/2014, 18:20

... using our transformations Figure compares the parsing times of LCFRS with and without the new CFG - CTF method The graph shows a steep incline for parsing with LCFRS directly, which makes it infeasible ... and parsing complexity: it is possible that parsing complexity can be reduced by increasing the fan-out of a production In other words, there can be a production which can be binarized with a parsing ... sub-optimal Therefore we focus on parsing complexity rather than fan-out in this work, since parsing complexity determines the actual time complexity of parsing with a grammar There has been some...

Ngày tải lên: 08/03/2014, 21:20

... use of the EDOL hypothesis with respect to those dependencies that are being checked by the parser Parsing Unification-Based Grammars In phrase-structure rule-based parsing, each rule corresponds ... since the same rule may be used several times within a single derivation, and also the same constituent may be used within different partial analyses with features instantiated in different ways ... operation with no repercussions on the rest of the parsing process No copying of feature structures is required, so memory usage is greatly reduced, and complex quasidestructive algorithms with their...

Ngày tải lên: 08/03/2014, 21:20

... sequent with a positive occurrence of ViX.X/X and with non-zero path, then there must occur higher in the proof, a sequent with V,.X.X/X occurring again positively and this time with with zero-path ... = With the exception of bound variable, if a category occurs with a p a t h (C,p), and a polarity 6, in the conclusion of an inference, then it occurs in the premises of t h a t inference with ... a t inference with the same polarity, and with either the same p a t h or with p a t h p Also, in leaves of a proof in L(/'\'v), categories only occur with zero path Therefore, if we have ::~...

Ngày tải lên: 09/03/2014, 01:20