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  • can i do multiple things in one command on linux?

    - by Jason94
    Im testing something where im compiling some code and analysing output with a perl script. So first i run make, manually copy&paste the output to errors.txt and then running my perl script (running: perl analysis.pl) in terminal. Is there away I can do this just with one line in bash?

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  • Exception when indexing text documents with Lucene, using SnowballAnalyzer for cleaning up

    - by Julia
    Hello!!! I am indexing the documents with Lucene and am trying to apply the SnowballAnalyzer for punctuation and stopword removal from text .. I keep getting the following error :( IllegalAccessError: tried to access method org.apache.lucene.analysis.Tokenizer.(Ljava/io/Reader;)V from class org.apache.lucene.analysis.snowball.SnowballAnalyzer Here is the code, I would very much appreciate help!!!! I am new with this.. public class Indexer { private Indexer(){}; private String[] stopWords = {....}; private String indexName; private IndexWriter iWriter; private static String FILES_TO_INDEX = "/Users/ssi/forindexing"; public static void main(String[] args) throws Exception { Indexer m = new Indexer(); m.index("./newindex"); } public void index(String indexName) throws Exception { this.indexName = indexName; final File docDir = new File(FILES_TO_INDEX); if(!docDir.exists() || !docDir.canRead()){ System.err.println("Something wrong... " + docDir.getPath()); System.exit(1); } Date start = new Date(); PerFieldAnalyzerWrapper analyzers = new PerFieldAnalyzerWrapper(new SimpleAnalyzer()); analyzers.addAnalyzer("text", new SnowballAnalyzer("English", stopWords)); Directory directory = FSDirectory.open(new File(this.indexName)); IndexWriter.MaxFieldLength maxLength = IndexWriter.MaxFieldLength.UNLIMITED; iWriter = new IndexWriter(directory, analyzers, true, maxLength); System.out.println("Indexing to dir..........." + indexName); if(docDir.isDirectory()){ File[] files = docDir.listFiles(); if(files != null){ for (int i = 0; i < files.length; i++) { try { indexDocument(files[i]); }catch (FileNotFoundException fnfe){ fnfe.printStackTrace(); } } } } System.out.println("Optimizing...... "); iWriter.optimize(); iWriter.close(); Date end = new Date(); System.out.println("Time to index was" + (end.getTime()-start.getTime()) + "miliseconds"); } private void indexDocument(File someDoc) throws IOException { Document doc = new Document(); Field name = new Field("name", someDoc.getName(), Field.Store.YES, Field.Index.ANALYZED); Field text = new Field("text", new FileReader(someDoc), Field.TermVector.WITH_POSITIONS_OFFSETS); doc.add(name); doc.add(text); iWriter.addDocument(doc); } }

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  • A strategy to troubleshoot/ fix application crashes in Windows?

    - by Manav Sharma
    All, Over a period of time I have observed that fixing issues related to application crash is a discipline in itself. Some people have this nice way of attacking such problems. Ranging from Viewing the 'Event Viewer' to running Static/ Dynamic memory analysis tools to some of their 'personal favorites', these people have developed this art. Can we share articles/ links/ personal approaches that we use to understand/ troubleshoot/ fix such issues? Thanks

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  • Meaning of parameters in a Google query?

    - by blinry
    Are there any ressources on what the parameters in a Google query mean? Any analysis how the Google search pages work internally? Examples would be http://www.google.com/#hl=en&source=hp&q=lol&aq=f&aqi=&aql=&oq=&fp=45675624562456 or http://www.google.com/url?sa=t&source=web&ct=res&cd=11&ved=KJSGHFKSDJF&url=sfdgagasdgasdgasgasg&rct=j&q=fghthwrteghedgf&ei=asdfasdfsa&usg=asdfasdfasf

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  • Do Instances Share Same Services? - SQL Server

    - by peace
    Lets say i installed two named SQL Server 2008 instances e.g. A and B, will i have two services of each type e.g. two analysis service, two reporting service and so on, one service for A and the other for B? If yes, then it is known a service listens on a port number, how two same services going to listen on the port? I hope this is clear enough. Thanks

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  • Does ASP.net Report Viewer / Reports require Reporting Services on SQL server

    - by soldieraman
    I have an application that makes use of Report Viewer and Report (.rdlc) files. Does this mean that I need to have "Reporting Services" installed on my SQL server?? Also would not having "SQL Server Analysis services" affect me any way I want to make sure I keep using - SQL Server Profiler - SQL Server Agent - create and run management tasks - Reporting services if the first question's answer is true.

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  • Java - Which Business Intelligence (BI) platform can I embed with my commercial software for free?

    - by Yatendra Goel
    I am developing a java application and I want to use: Reporting Analysis Data Mining Data Integration tools to be shipped with my commercial application that I am NOT going to sell as an open source application. So I want to know which tools I can use in my app. Actually I am evaluating PENTAHO and JASPER but I don't understand licensing issues. Some comes under GPL, some under LGPL, some under CPL... so I am very confused about those.

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  • Data warehousing in sql server 2008

    - by 3bd
    Hi All: I am new to data warehousing and I am a little confused plz provide some simple steps to create a cube and fill it and make querey on it to know : I have a database with the original data and I have designed the star schema and made appropriate tables I have created an analysis service project in VS 2008 and then I have made the data source -data source view-dimensions - and the cube all that based on the star schema i have created previously now: what should I do to: fill this cube make query on this cube

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  • Is it possible to profile memory usage of unit tests?

    - by Rowland Shaw
    I'm looking at building some unit tests to ascertain if resources are leaking (or not) using the unit testing framework that comes with Visual Studio. At present, I'm evaluating the latest version of ANTS Profiler, but I can't quite work out if it allows me to force a snapshot from code (so that I can take a snapshot, run a unit test a few hundred times, force a garbage collection, and take another snapshot, and save the results out for later analysis). Is this possible to do with ANTS/Visual Studio or should I be exploring options with other profilers?

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  • How can I create an fscanf format string to accept white space and comma (,) tokenization

    - by Jamie
    I've got some analysis code (myprog) that sucks in data using the following: if(5 == fscanf(in, "%s%lf%f%f%f", tag, & sec, & tgt, & s1, & s2)) which works just fine. But in the situation where I've got data files that are separated by commas, I'm currently doing something like: sed 's/,/ /g' data | myprog Can I modify the format string in the fscanf() function to accept both delimitation formats?

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  • Recognizing individual voices

    - by raheel
    I plan to write a conversation analysis software, which will recognize the individual speakers, their pitch and intensity. Pitch and intensity are somewhat straightforward (pitch via autocorrelation). How would I go about recognizing individual speakers? For starters I can assume that only one person speaks at a time.

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  • Natural Language Processing in Ruby

    - by Joey Robert
    I'm looking to do some sentence analysis (mostly for twitter apps) and infer some general characteristics. Are there any good natural language processing libraries for this sort of thing in Ruby? Similar to http://stackoverflow.com/questions/870460/java-is-there-a-good-natural-language-processing-library but for Ruby. I'd prefer something very general, but any leads are appreciated!

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  • What are the best ways to store Graphs in persistent storage

    - by nicoslepicos
    I am wondering what the best ways to store graphs in persistent storage are, for later analysis, search, clustering, etc. I see neo4j being an option, I am curious if there are also other graph databases available. Does anyone have any insights into how larger social networks store their graph based data (or other sites that require the storage of graph like models, e.g. RDF). What about options like Cassandra, or MySQL?

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  • How can I get the followers of a user on twitter, then get posts from those followers over a period

    - by Ronan
    I've been assigned a research project to enhance social networking based adaptive e-learning and to do so I need to be able to extract several (hundreds, maybe thousands) of status updates or tweets in order to perform factor analysis on key words. Apparently this can be done with javascript but I have never used javascript before so I'm a bit lost. I know I need a Twitter API but not sure even how to use one. Anybody have any idea how I can do this?

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  • R Package for Bayesian Belief Networks

    - by user187395
    Is anyone aware of an R package for Bayesian Belief Networks (BBN) that can handle latent (hidden) nodes? I am referring to process learning the structure and the parameters of the model. Based on the documentation, the "bnlearn" package does not provide for such capability. In addition, is anyone aware of R packages that allow for making inferences and sensitivity analysis for BBN? Thank you in advance.

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  • C vs. C++ for performance in memory allocation

    - by Andrei
    Hi, I am planning to participate in development of a code written in C language for Monte Carlo analysis of complex problems. This codes allocates huge data arrays in memory to speed up its performance, therefore the author of the code has chosen C instead of C++ claiming that one can make faster and more reliable (concerning memory leaks) code with C. Do you agree with that? What would be your choice, if you need to store 4-16 Gb of data arrays in memory during calculation?

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  • Real-time spectrum analyzer with API

    - by bobobobo
    I'm looking for a C or C++ API that will give me real-time spectrum analysis of a waveform on Windows. I'm not entirely sure how large a sample window it should need to determine frequency content, but the smaller the better. For example, if it can work with a 0.5 second long sample and determine frequency content to the Hz, that would be wicked-awesome.

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  • Creating a dummy design before the development starts

    - by NLV
    Hello How can i create a dummy design of an application before the actual development starts? How to simulate the UI of the application. After completing the analysis phase do i need to start the design directly using dev tools or can i create some dummies (even images, using Visio or something) with other tools? Thank you

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  • What programming languages are good for statistics?

    - by Jason Baker
    I'm doing a bit more statistical analysis on some things lately, and I'm curious if there are any programming languages that are particularly good for this purpose. I know about R, but I'd kind of prefer something a bit more general-purpose (or is R pretty general-purpose?). What suggestions do you guys have? Are there any languages out there whose syntax/semantics are particularly oriented towards this? Or are there any languages that have exceptionally good libraries?

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