search text files using regular expressions

Automatic text extraction using DWT and Neural Network

Ngày tải lên : 05/11/2012, 14:51

... a candidate image Edge regions containing texts are then obtained using a threshold afterward Chun et al [5] extract text regions in video sequences using Fast Fourier Transform operation (FFT) ... of real text regions are pretty different from those of the non -text regions Therefore, we can apply an appropriate threshold to remove the non -text regions Finally, the remained real text regions ... method for extracting text regions from static images or video sequences using DWT and a neural network DWT provides features of text regions for the training of a neural network using the back-propagation...

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Regular Expressions

Ngày tải lên : 06/10/2013, 09:20

... http-equiv="Content-Type" content= "text/ html; charset=iso-8859-1"> Regular expressions

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Module 3: Using MDX Expressions

Ngày tải lên : 18/10/2013, 18:15

... calculating members by using MDX expressions plus how to view metadata and work with conditionals Displaying Member Information ! Lead-in Using MDX Expressions Using Conditional Expressions In this ... simple and complex conditional expressions BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY Module 3: Using MDX Expressions # Using MDX Expressions Topic Objective To ... 12 Module 3: Using MDX Expressions Lab A: Using Expressions from Constants Topic Objective To introduce the lab Lead-in In this lab, you will create simple calculated members by using constants...

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Tài liệu Dive Into Python-Chapter 7. Regular Expressions doc

Ngày tải lên : 14/12/2013, 14:15

... letter t I recommend always using raw strings when dealing with regular expressions; otherwise, things get too confusing too quickly (and regular expressions get confusing quickly enough all by ... move up to regular expressions In Python, all functionality related to regular expressions is contained in the re module Take a look at the first parameter: 'ROAD$' This is a simple regular expression ... 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...

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Tài liệu Regular Expressions Cookbook, 2nd Edition docx

Ngày tải lên : 16/02/2014, 13:20

... Introduction to Regular Expressions Regular Expressions Defined Search and Replace with Regular Expressions Tools for Working with Regular Expressions Basic Regular ... computer, whether that’s searching through a pile of documents, manipulating text in a text editor, or developing software that needs to search through or manipulate text Regular expressions are an ... for using regular expressions; each of the subsequent chapters presents a variety of regular expressions while investigating one area of text processing in depth Chapter 1, Introduction to Regular...

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Tài liệu Introducing Regular Expressions doc

Ngày tải lên : 18/02/2014, 06:20

... a text area near the top, and a larger text area below that The top text box is for entering regular expressions, and the bottom one holds the subject or target text The target text is the text ... 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 ... of regular expressions, you will take off in your ability to match strings of any kind • TextMate is available at http://www.macromates.com For more information on regular expressions in TextMate,...

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Tài liệu Báo cáo khoa học: "Identifying Text Polarity Using Random Walks" pptx

Ngày tải lên : 20/02/2014, 04:20

... (2005; 2006) use a textual representation of words by collating all the glosses of the word as found in some dictionary Then, a binary text classiﬁer is trained using the textual representation ... Subjectivity analysis is the task of identifying text that present opinions as opposed to objective text that present factual information (Wiebe, 2000) Text could be either words, phrases, sentences, ... identiﬁed without considering their context (Wiebe, 2000; Hatzivassiloglou and Wiebe, 2000; Banea et al., 2008) In the second category, the context of subjective text is used (Riloff and Wiebe, 2003;...

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Tài liệu Báo cáo khoa học: "An ERP-based Brain-Computer Interface for text entry using Rapid Serial Visual Presentation and Language Modeling" ppt

Ngày tải lên : 20/02/2014, 05:20

... when using a grid Second, multi-character substrings can be scanned in RSVP, whereas the kind of dynamic re-organization of a grid that would be required to support this can be very confusing ... each channel is temporally-windowed Third, a linear dimension reduction (using principal components analysis) is learned using training data and is subsequently applied to the EEG data when the ... corresponding to the speciﬁed stimulus Fifth, Regularized Discriminant Analysis (RDA) (Friedman, 1989), which estimates conditional probability densities for each class using Figure 3: Trial-averaged EEG...

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Tài liệu Báo cáo khoa học: "Extracting Comparative Sentences from Korean Text Documents Using Comparative Lexical Patterns and Machine Learning Techniques" doc

Ngày tải lên : 20/02/2014, 09:20

... sentences Since the research of comparison mining is currently in the beginning step in the world, our proposed techniques can contribute much to text mining and opinion mining research In our future ... did not use any long-distancewords sequence Keyword searching process can detect most of comparative sentences (S1, S2 and S3) from original text documents That is, the recall is high but the ... results using the 5-fold cross validation are shown in Table and Figure The labels such as ‘pv’, ‘etm’, ‘nbn’, etc are Korean POS Tags As you can see in the experiment section, keyword searching...

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Tài liệu Báo cáo khoa học: "Learning with Unlabeled Data for Text Categorization Using Bootstrapping and Feature Projection Techniques" doc

Ngày tải lên : 20/02/2014, 16:20

... context-cluster of each category as the combination of centroid-contexts and contexts selected by the similarity measure Using the context-clusters as labeled training data, a Naive Bayes classifier ... information of each category by assigning remaining contexts to each contextcluster using a similarity measure technique; the remaining contexts not contain any keywords or title words 3.2.1 Creating ... centroid-contexts Among centroid-contexts, some contexts could not have good features of a category even though they include the keywords of the category To rank the importance of centroid-contexts,...

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Tài liệu Báo cáo khoa học: "A Best-First Search Algorithm for Generating Referring Expressions" pot

Ngày tải lên : 22/02/2014, 02:20

... resp 3.5 times faster than the exhaustive search in (Gardent 2002) Hence, using the search restrictions and the representation dependencies cuts down the search space considerably 106 Conclusion ... preceding sibling node (dominance cut-oft) The best-first search is performed by the procedure Search (Figure 3) It maintains the variables Procedure Search Best

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Báo cáo khoa học: "Describing Syntax with Star-Free Regular Expressions" ppt

Ngày tải lên : 08/03/2014, 21:20

... constraints are expressed by means of FSIG regular expressions Any symbol a E E, as well as any symbol set {al, a2, , a rn }, al, a2 , e E, are valid FSIG regular expressions The language consisting ... = [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...

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Báo cáo khoa học: "Evaluating Centering-based metrics of coherence for text structuring using a reliably annotated corpus" doc

Ngày tải lên : 17/03/2014, 06:20

... Evaluating the coherence of a text and text structuring The statistics about transitions computed as just discussed can be used to determine the degree to which a text conforms with, or violates, ... metrics discussed in Section 3, using the original ordering of texts in the gnome corpus to compute the average classiﬁcation rate of each metric The gnome corpus contains texts from diﬀerent genres, ... Stochastic text structuring using the principle of continuity In Proceedings of INLG 2002, pages 81–88, Harriman, NY, USA, July Nikiforos Karamanis 2003 Entity Coherence for Descriptive Text Structuring...

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Báo cáo khoa học: "Automatically Evaluating Text Coherence Using Discourse Relations" docx

Ngày tải lên : 23/03/2014, 16:20

... is more coherent The pair of texts consists of a source text and one of its permutations (i.e., the text s sentence order is randomized) Assuming that the original text is always more discourse-coherent ... discourse relation transition sequences in gold standard coherent text, and a similar one for incoherent text For example, the above text would generate the transition bigram Comp→Cont We can build ... transitions in short texts are few in number, we have very little data to base the coherence judgment on However, when faced with even short text excerpts, humans can distinguish coherent texts from incoherent...

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Báo cáo khoa học: "Stochastic Language Generation Using WIDL-expressions and its Application in Machine Translation and Summarization" pot

Ngày tải lên : 23/03/2014, 18:20

... generation algorithms for text- to -text applications In Proceedings of the ACL, pages 6674 Radu Soricut 2006 Natural Language Generation for Text- to -Text Applications Using an Information-Slim ... of these expressions is Finally, we generate headlines from WIDLexpressions using the WIDL-NGLM-A algorithm, which interpolates the probability distributions represented by the WIDL -expressions ... combines all the -headed expressions into a single WIDL-expression using a operator with uniform probability The WIDLexpression in Figure is a (scaled-down) example of the expressions created by...

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o'reilly - mastering regular expressions 2nd edition

Ngày tải lên : 25/03/2014, 10:50

... understanding Searching Text Files: Egrep Finding text is one of the simplest uses of regular expressions — many text editors and word processors allow you to search a document using a regular- expression ... Chapter 1: Introduction to Regular Expressions Regular Expressions as a Language Unless you’ve had some experience with regular expressions, you won’t understand the regular expression ! ˆ( From;Subject ... Introduction to Regular Expressions It might be as simple as a text editor’s search command or as powerful as a full text processing language This book shows you the many ways regular expressions...

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o'reilly - mastering regular expressions in java 2nd edition

Ngày tải lên : 25/03/2014, 10:50

... Regex Object d text? tche Ma Result Object Figur e 8-3: A “match result” model 25 June 2002 09:00 4' 5' Group text ? " 16" 3' "16" d text? tche Ma 6' " 1998" Result Object Group text ? 6' "1998" ... backslashes required when regular expressions are provided as Java string literals For example, ! \n" in the table must be written as "\\n" as a Java string See “Strings as Regular Expressions ( 101) ... tasks that need to be done in using a regular expression: Setup Accept a string as a regex; compile to an internal form Associate the regex with the target text Actually apply the regex...

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Báo cáo khoa học: "Text Chunking using Regularized Winnow" potx

Ngày tải lên : 31/03/2014, 04:20

... 3: Chunk prediction results using original Winnow (with basic features) Conclusion In this paper, we described a text chunking system using regularized Winnow Since regularized Winnow is robust ... allows other researchers to reproduce our results easily In Table 2, we report the results of our system with the basic features enhanced by using ESG syntactic roles, showing that using more linguis- ... means that it will be relatively easy for other researchers to implement and reproduce our results Furthermore, the success of regularized Winnow in text chunking suggests that the method might be...

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Báo cáo khoa học: "Text Segmentation Using Reiteration and Collocation" docx

Ngày tải lên : 31/03/2014, 04:20

... in text such as ellipsis and conjunction Lexical cohesion is expressed through the vocabulary used in text and the semantic relations between those words Identifying semantic relations in a text ... identified the breaks between concatenated texts to evaluate the performance of text segmentation algorithms (Reynar, 1994; Stairmand, 1997) For each text, the troughs placed by the segmentation ... identified by test subjects for the same texts Method: Twenty texts were randomly selected for test data each consisting of approximately 500 words These texts were presented to seven test subjects...

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Báo cáo khoa học: "High-Performance Bilingual Text Alignment Using Statistical and Dictionary Information" pptx

Ngày tải lên : 31/03/2014, 06:20

... both texts using finite state transducers The texts are then partof-speech (POS) tagged and separated into original form words z Original forms of English words are determined by 80 rules using ... wordcorrespondences in the case of short texts Text is easy to align in terms of both the complexity of the alignment and the vocabularies used All methods performed well on this text For Text 4, C o m b i n e ... server The first two texts clarify the systems's performance on shorter texts Text is an essay on economics taken from a quarterly publication of The International House of Japan Text is a scientific...

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