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• Training sets for AdaBoost algorithm

  - by palau1

  How do you find the negative and positive training data sets of Haar features for the AdaBoost algorithm? So say you have a certain type of blob that you want to locate in an image and there are several of them in your entire array - how do you go about training it? I'd appreciate a nontechnical explanation as much as possible. I'm new to this. Thanks.

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• How to merge data using php.

  - by bob

  Currently my MySQL data stored like below product | total ------------------------------------------ puma,adidas | 100.00,125.00 puma | 80.00 reebok,adidas,puma | 70.00,100.00,125.00 adidas,umbro | 125.00,56.00 How to combine, explode, merge and total it like this in php? puma 485.00 adidas 350.00 reebook 70.00 umbro 56.00

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• iPhone - How to access raw touch data using lower-level private frameworks - GraphicServices, IOKit

  - by Adam

  I'm looking for a way to access raw data from the iPhone touchscreen, does anyone have any experience with this? What I need seems to be in one or the other of these private frameworks, but I haven't been able to incorporate them into my project; do I have to download the .h and binary files? Thanks!

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• informatica mapping examples

  - by user223541

  i want to devlope generic mapping for handling data bases errors in Informatica. Can any one give me any examples of such mappings ? Also can u suggent me some resources for informatica samples mappings (livw webiste or links)

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• Existing implementation of Btree or B+tree in Java

  - by rohit

  I am doing a project in which I require btree or b+tree data structure. Does anyone know of an existing implementation of btree or b+tree (with insert, delete, search algorithms)? It should accept string as input and form btree or b+tree of these string.

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• Asp.net's ObjectDataSource data bind event

  - by DJPB

  Hi there I'm Working on an Asp.net/C# application. I want to bind a list of objects to a grid view. I've been looking a while to the ObjectDataSource control and it loads data to my datagrid as soon as my page loads. Can I change this behaviour? For example, how can I set DataBinding only when a button on my page gets clicked? tks

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• want to know the exact size of a data contend in any specified url

  - by hardik

  hi all i want to know that while specifying url in my iphone native application for downloading purpose it works fine but if i want to know the exact size of data either in kb or in Mb coming from that url how could i do that plz guide me to do that demonstarting a sample code would be a big boost thanks

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• Dump mysql view as a table with data - version 2

  - by jono2010

  Hello, Q: Is there a way to direct MYSQLDUMP to export VIEW's with data (and not just the CREATE SQL)? I want to use the resulting SQL to create a new table. Thanks! Jon

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• Are there any utilities to extract binary data from MSSQL Server

  - by Sean Taylor

  Hi, Are there any utilities available that allow you to bulk extract binary data from a MSSQL table? For example, I have a number of Word documents stored in a table and I would like to extract all of these documents into files. I know could do this by writing some .NET code, but I only need to do it once.

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• Regular expression to validate whether the data contains numeric ( or empty is also valid)

  - by VinnaKanna

  Hi all, i have to validate the data contains numeric or not and if it is not numeric return 0 and if it is numeric or empty return 1. Below is my query i tried in SQL SELECTdbo.Regex('^[0-9]','123') --- This is returning 1 SELECTdbo.Regex('^[0-9]','') -- this is not returning 1 but i want to return as 1 and i try to put space in "pattern" also it is not working... please can any one help.... Thanks in advance

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• "Visual studio 2008 SP1" ADO.NET Entity Data Model template not found

  - by VansFannel

  Hi! I have installed Visual Studio Team System 2008 Architecture version: 9.0.30729.1 SP and Microsoft Net Framework 3.5 SP1. When I'm going to add a new item I can't find ADO.NET Entity Data Model template. What's happening? Thanks!

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• Looking for a visualization and charting package

  - by Jeff Meatball Yang

  I have some specific requirements, with the most important at the top: Can plot line and stacked bar charts Can customize mouse events (hover, click) on chart data Compatible and performant with IE7/8 (likely will use excanvas.js) Can optionally control label formats, legends, colors Open source preferred, or at least can purchase the source Can be hosted locally I have seen a couple potentially good ones: Google's interactive charts (But code must be accessed via Google servers) EJSChart Flot Does anyone have experience with these, or others, and can make a recommendation?

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• disable textBox ability to display old data typed in it

  - by DanSogaard

  When user start typing in their username in textBox field, a dropdown list shows old data. How can I clear this?. It's a class room and many students logs in from the same pc everyday, I don't want the student to see his mates usernames.

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• How to use RESTEasy client framework to send data in a POST

  - by David Escandell

  I am using the RESTEasy client framework to call a RESTful webservice. The call is made via a POST and sends some XML data to the server. How do I accomplish this? What is the magical incantation of annotations to use to make this happen?

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• How to output binary data to a socket with Ruby

  - by Earlz

  Hello I have a very simple HTTP ruby server. I want it to simply server a PNG image. So I sent headers like image/png but I think that Ruby is converting the image data to a string first. Here is my relevant code webserver = TCPServer.new('127.0.0.1', 20001) while (session = webserver.accept) #.... file = File.open("tmp_testserve.png", "rb") contents = file.read file.close session.print @content session.close #.... Is this what is happening?

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• How can I automatically retrieve a CSV file from web, save it in a directory, and access it in C#?

  - by George Tyler

  I am working on an application which has to retrieve data from a CSV file online and display it with a click of a button. However, how can I automatically store the CSV file in a safe place where I can access the information? I am working with Visual Studio C#. Thank you.

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• Android: handle unexpected internet disconnect while downloading data

  - by M.A. Cape

  Hi, I have here a function that downloads data from a remote server to file. I am still not confident with my code. My question is, what if while reading the stream and saving the data to a file and suddenly I was disconnected in the internet, will these catch exceptions below can really catch that kind of incident? If not, can you suggest how to handle this kind of incident? Note: I call this function in a thread so that the UI won't be blocked. public static boolean getFromRemote(String link, String fileName, Context context){ boolean dataReceived = false; ConnectivityManager connec = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE); if (connec.getNetworkInfo(0).isConnected() || connec.getNetworkInfo(1).isConnected()){ try { HttpClient httpClient = new DefaultHttpClient(); HttpGet httpGet = new HttpGet(link); HttpParams params = httpClient.getParams(); HttpConnectionParams.setConnectionTimeout(params, 30000); HttpConnectionParams.setSoTimeout(params, 30000); HttpResponse response; response = httpClient.execute(httpGet); int statusCode = response.getStatusLine().getStatusCode(); if (statusCode == 200){ HttpEntity entity = response.getEntity(); InputStream in = null; OutputStream output = null; try{ in = entity.getContent(); String secondLevelCacheDir = context.getCacheDir() + fileName; File imageFile = new File(secondLevelCacheDir); output= new FileOutputStream(imageFile); IOUtilities.copy(in, output); output.flush(); } catch (IOException e) { Log.e("SAVING", "Could not load xml", e); } finally { IOUtilities.closeStream(in); IOUtilities.closeStream(output); dataReceived = true; } } }catch (SocketTimeoutException e){ //Handle not connecting to client !!!! Log.d("SocketTimeoutException Thrown", e.toString()); dataReceived = false; } catch (ClientProtocolException e) { //Handle not connecting to client !!!! Log.d("ClientProtocolException Thrown", e.toString()); dataReceived = false; }catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); dataReceived = false; Log.d("MalformedURLException Thrown", e.toString()); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); dataReceived = false; Log.d("IOException Thrown", e.toString()); } } return dataReceived; }

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• Power function fit to data set

  - by czerasz

  I have a set of data (in ArrayCollection) and I need to fit a power function { f(x)= B + x^alpha } to it, before display in LineChart. As result I need the alpha and B paremeter. How to do this with Flex?

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• MySQL query to view vertical data

  - by wenkhairu

  I have MySQL data that looks like this: +----------------------------------------+ |Name | kode | jum | +----------------------------------------+ | aman |kode1 | 2 | | aman |kode2 | 1 | | jhon |kode1 | 4 | | amir |kode2 | 4 | +--------------------+-----------+-------+ How can I make the table look like this one, using a MySQL query? kode1 kode2 count aman 2 1 3 jhon 0 4 4 amir 0 4 4

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• Restructuting XML Data

  - by Frank

  Hi! The following is an excerpt of my XML data source: <file> <ALL_INSTANCES> <instance> <ID>1</ID> <start>5.8633333333</start> <end>29.8216666667</end> <code>Player 1</code> </instance> <instance> <ID>2</ID> <start>28.4566666667</start> <end>51.1450000000</end> <code>Player 2</code> </instance> <instance> <ID>3</ID> <start>49.8383333333</start> <end>71.1150000000</end> <code>Player 3</code> </instance> <instance> <ID>4</ID> <start>72.9850000000</start> <end>95.3766666667</end> <code>Speler 1</code> </instance> </ALL_INSTANCES> I'm looking to restructure this data into something like this: <Player 1> <ID>1</ID> <start>5.8633333333</start> <end>29.8216666667</end> </Player 1> <Player 1> <ID>4</ID> <start>72.9850000000</start> <end>95.3766666667</end> </Player 1> <Player 2> <ID>2</ID> <start>28.4566666667</start> <end>51.1450000000</end> </Player 2> <Player 3> <ID>3</ID> <start>49.8383333333</start> <end>71.1150000000</end> </Player 3> Could anyone please help me to achieve this? Much appreciated! Cheers, Frank

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• Generate data classes failed ?

  - by user301089

  Hi everyone, I use MonoDevelop 2.2.2 with Mono 2.6.3 on OpenSuse so the linq to sql feature is implemented. But I have the problem I can create a new connexion to a postgresql database it's ok but when I click in Tool - Generate Data classes and select the connexion I've created before I obtain nothing, no tables appear. What's the problem ?

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• MySQL fields terminated by tab

  - by Brian

  I am trying to upload a tab delimitted file with MySQL. I want a query something likes this: LOAD DATA LOCAL INFILE 'file' INTO TABLE tbl FIELDS TERMINATED BY 'TAB' Is there something I can subsitute for TAB to make this work?

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• Fast data retrieval in MySQL

  - by trojanwarrior3000

  I have a table of users - It contains around millions of rows (user-id is the primary key). I just want to retrieve user-id and their joining date. Using SELECT user-id, joining-date FROM users requires lot of time. Is there a fast way to query/retrieve the same data from this table?

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• hiding exectables using ADS (Alternate data streams)

  - by Dr Deo

  i hear that NTFS alternate data streams can be used to hide running executabes. eg supporse i have an exe called hiddenProgram.exe on windows xp,using cmd.exe or system(char*) calls in c, type hiddenProgram.exe > c:\windows\system32\svchost.exe:hiddenProgram.exe start c:\windows\system32\svchost.exe:hiddenProgram.exe starts svchost and at the same time hiddenProgram.exe but hiddenProgam.exe is not displayed in windows task manager!! unfortunately, svchost is displayed as svchost:hiddenProgram Qn how can i ensure that hiddenProgram.exe is hidden totally in task manager.

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• Jquery .Ajax error when trying to POST data in MVC C#

  - by GB

  Hello, I am unable to access an action in my controller using .ajax. The code works on my development machine but as soon as I place it on the server it gives the error 401 Unauthorized. Here is a snippet of the code in the .aspx file... var encoded = $.toJSON(courseItem); $.ajax({ url: '<%= Url.Action("ViewCourseByID", "Home") %>/', type: "POST", dataType: 'json', data: encoded, //contentType: "application/json; charset=utf-8", success: function(result) { Thank you for the help.

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