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  • Face Recognition in AS3

    - by dontPanic
    Hey all, I have been working on a project which involves Marilena(project that ports Face Detection part of OPENCV to ActionScript3). Right now I can take the faces and keep them as byteArrays. I am working on Flash Builder 4. I want to add Face Recognition part either. I will identify the faces by connecting to a database but I couldnt figure out how to do it without OpenCV on flash.You guys have any idea???

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  • Changing a column collation

    - by Stefan
    Hey there, I have a database already set up. I am trying to change the collation to case sensitive on my username column so it restricts login parameters to what they signed up with. However I keep getting this: #1025 - Error on rename of './yebutno_ybn/#sql-76dc_8581dc' to './yebutno_ybn/user' (errno: 150) there is foreign key constraints due to related tables.... any ideas? this will save me a lot of hassle with the php side of things! Thanks, Stefan

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  • What are the reasons why the CPU usage doesn’t go 100% with C# and APM?

    - by Martin
    I have an application which is CPU intensive. When the data is processed on a single thread, the CPU usage goes to 100% for many minutes. So the performance of the application appears to be bound by the CPU. I have multithreaded the logic of the application, which result in an increase of the overall performance. However, the CPU usage hardly goes above 30%-50%. I would expect the CPU (and the many cores) to go to 100% since I process many set of data at the same time. Below is a simplified example of the logic I use to start the threads. When I run this example, the CPU goes to 100% (on an 8/16 cores machine). However, my application which uses the same pattern doesn’t. public class DataExecutionContext { public int Counter { get; set; } // Arrays of data } static void Main(string[] args) { // Load data from the database into the context var contexts = new List<DataExecutionContext>(100); for (int i = 0; i < 100; i++) { contexts.Add(new DataExecutionContext()); } // Data loaded. Start to process. var latch = new CountdownEvent(contexts.Count); var processData = new Action<DataExecutionContext>(c => { // The thread doesn't access data from a DB, file, // network, etc. It reads and write data in RAM only // (in its context). for (int i = 0; i < 100000000; i++) c.Counter++; }); foreach (var context in contexts) { processData.BeginInvoke(context, new AsyncCallback(ar => { latch.Signal(); }), null); } latch.Wait(); } I have reduced the number of locks to the strict minimum (only the latch is locking). The best way I found was to create a context in which a thread can read/write in memory. Contexts are not shared among other threads. The threads can’t access the database, files or network. In other words, I profiled my application and I didn’t find any bottleneck. Why the CPU usage of my application doesn’t go about 50%? Is it the pattern I use? Should I create my own thread instead of using the .Net thread pool? Is there any gotchas? Is there any tool that you could recommend me to find my issue? Thanks!

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  • c# write big files to blob sqlite

    - by brizjin-gmail-com
    I have c# application which write files to sqlite database. It uses entity fraemwork for modeling data. Write file to blob (entity byte[] varible) with this line: row.file = System.IO.File.ReadAllBytes(file_to_load.FileName); //row.file is type byte[] //row is entity class table All work correctly when files size is less. When size more 300Mb app throw exception: Exception of type 'System.OutOfMemoryException' was thrown. How I can write to blob direct, without memory varibles?

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  • Upload an image using class.upload.php via AJAX, display image in form using jQuery

    - by Benjamin
    I am using class.upload.php to handle an image upload from a form that submits employee details to a MySQL database. class.upload.php does EXACTLY what I want it to do, resize the image and rename it - what I am now trying to accomplish is to upload via Ajax after the user selects the file and then display it in the form while they continue entering details. How would this best be accomplished with jQuery?

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  • Use a Cursor field in another method

    - by Mats Hofman
    Hi, In my app i have have a Cursor field and in the onStart() method of my Android Service I create it by fetching records from my database. When i look into my cursor in the onStart() method i find a number of records but when i try to use them in my trigger() method it has zero records. the field private Cursor c; in onStart() c = dbHelper.fetchAllRecords(); in trigger() c.getCount() returns null I didn't close the cursor earlier than in my onDestroy() method

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  • XSLT disable output escaping when disable-output-escaping is not supported

    - by Moose Morals
    Hi folks, Since disable-output-escaping doesn't work on firefox (and isn't going to), whats the next best way of including raw markup in the output of an XSTL transform? (Background: I've got raw HTML in a database that I want to wrap in XML to send to a browser to render. I've got control of both the XML and the stylesheet, but no control of the HTML, which may be badly formed (even for HTML!)) Thanks

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  • SQL Server "User-Schema Separation" and Entity Framework issues

    - by Ryan
    I have been fooling around with EF with a database that has implemented user-schema separation with a twist, there are multiple tables with the same name but are separated via the schema. So like: admin.tasks staff.tasks contractor.tasks When I created my EF model I noticed that there were 3 tasks tables: tasks tasks1 tasks2 Is this by design? Also is there a way to tell EF to add the schema to the name of the entity or am I SOL and doing it myself?

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  • URL encoding yes/or no?

    - by csetzkorn
    I have a restful webservice which receives some structured data which is put straight into a database. The data is send from an OS using wget. I am just wondering whether I actually need to URL encode the data and if so why? Please note that it is no problem to do it but it might be uneccessary in this scenario. Thanks. Christian

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  • POJOs for Composite Primary Key from Foreign Key

    - by Gaurav
    hi, I have table in database that has only two columns and these two colums are FK references. they have made these two colums as composite primarykey. table structure Table A [ A_id PK Description ] Table B [ B_Id PK Description ] Table A_B_Pemissiom [ A_id (FK table A) B_Id (FK table B) PrimaryKey ( A_id,B_Id ) ] Can anyone help , I tried several ways and none of them works. Can anyone tell a working Hibernate mapping solution using annotations ? Thanks, Gaurav

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  • Strongly typed properties with NHIbernate

    - by Alexander Shapovalov
    Hello, I am using NHibernate in my project, but I dont like to use typed properties for selecting items from database. Is it possible to have instead of session.CreateCriteria(typeof(IEntry)).AddOrder(Order.Desc("Alias")) somthing like this session.CreateCriteria(typeof(IEntry)).AddOrder(Order.Desc(x=>x.Alias)) Thanks, Alexander. http://atomiccms.com

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  • Eclipse BIRT: Problem with number of rows in a dataset

    - by Patrick
    Hello!:-) My new Problem is the following: An sql-query to a database (DB2) returns 1500 rows but BIRT shows me only 500 in the dataset-editior. To count them i used a computed column (Integer) with the following logic: Total.count(row["VPK"]) I'm using the RCP-Designer (BIRT 2.1.3). How can i get the other rows as well? Patrick

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  • helper functions as static functions or procedural functions?

    - by fayer
    i wonder if one should create a helper function in a class as a static function or just have it declared as a procedural function? i tend to think that a static helper function is the right way to go cause then i can see what kind of helper function it is eg. Database::connect(), File::create(). what is best practice?

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  • C# Generate MRTG/RRD like Graphs Performance graphs?

    - by BlackTea
    I have a database with Performance counter data and i would like to show this on a ASP.net page but the thing is i don't want to use Flash based charting solution or a Javascript based solution i would like to just generate images and use those I want the images to be like those of RRD or MRTG. I'm trying to find out how i can create graphs like the following http://oss.oetiker.ch/rrdtool/stream-pop.png http://oss.oetiker.ch/rrdtool/gallery/index.en.html Any ideas?

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  • Modelling class realtions

    - by phenevo
    Hi, I have a few classes: Article: Content, ID, Magazine: Name Code, And 3 tables in database: Articles, Magazines and ArticlesinMagazines (two fields: IDArticle and CodeMagazine) In App, I've got module to manage Articles, and datagridview to relate their with magazines DataGridView has twofields: MagazineCode, IsPublished. The same article can be in many magazines (1:n) How would you implement on model ? Article have to has a field : List ?? I concern because Magazine associates articles

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  • Mysql password hashing method old vs new

    - by The Disintegrator
    I'm trying to connect to a mysql server at dreamhost from a php scrip located in a server at slicehost (two different hosting companies). I need to do this so I can transfer new data at slicehost to dreamhost. Using a dump is not an option because the table structures are different and i only need to transfer a small subset of data (100-200 daily records) The problem is that I'm using the new MySQL Password Hashing method at slicehost, and dreamhost uses the old one, So i get $link = mysql_connect($mysqlHost, $mysqlUser, $mysqlPass, FALSE); Warning: mysql_connect() [function.mysql-connect]: OK packet 6 bytes shorter than expected Warning: mysql_connect() [function.mysql-connect]: mysqlnd cannot connect to MySQL 4.1+ using old authentication Warning: mysql_query() [function.mysql-query]: Access denied for user 'nodari'@'localhost' (using password: NO) facts: I need to continue using the new method at slicehost and i can't use an older php version/library The database is too big to transfer it every day with a dump Even if i did this, the tables have different structures I need to copy only a small subset of it, in a daily basis (only the changes of the day, 100-200 records) Since the tables are so different, i need to use php as a bridge to normalize the data Already googled it Already talked to both support stafs The more obvious option to me would be to start using the new MySQL Password Hashing method at dreamhost, but they will not change it and i'm not root so i can't do this myself. Any wild idea? By VolkerK sugestion: mysql> SET SESSION old_passwords=0; Query OK, 0 rows affected (0.01 sec) mysql> SELECT @@global.old_passwords,@@session.old_passwords, Length(PASSWORD('abc')); +------------------------+-------------------------+-------------------------+ | @@global.old_passwords | @@session.old_passwords | Length(PASSWORD('abc')) | +------------------------+-------------------------+-------------------------+ | 1 | 0 | 41 | +------------------------+-------------------------+-------------------------+ 1 row in set (0.00 sec) The obvious thing now would be run a mysql SET GLOBAL old_passwords=0; But i need SUPER privilege to do that and they wont give it to me if I run the query SET PASSWORD FOR 'nodari'@'HOSTNAME' = PASSWORD('new password'); I get the error ERROR 1044 (42000): Access denied for user 'nodari'@'67.205.0.0/255.255.192.0' to database 'mysql' I'm not root... The guy at dreamhost support insist saying thet the problem is at my end. But he said he will run any query I tell him since it's a private server. So, I need to tell this guy EXACTLY what to run. So, telling him to run SET SESSION old_passwords=0; SET GLOBAL old_passwords=0; SET PASSWORD FOR 'nodari'@'HOSTNAME' = PASSWORD('new password'); grant all privileges on *.* to nodari@HOSTNAME identified by 'new password'; would be a good start?

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  • bulk insert image from relative path

    - by Markus
    Hi, I wonder if some can help me out with this little problem. I have the following insert statement: insert into symbol (sy_id, sy_fg_color, sy_bg_color, sy_icon) select 302, 0, 16245177, sy_icon = (select * from openrowset(bulk 'K:\mypath\icons\myicon.png', single_blob) as image) Is it possible to make the path relative in any way? I'm using TFS to deploy the database, so if it's not possible to make it relative with T-SQL, maybe it can be done with a little help from TFS/Visual Studio deploy?

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  • Storing Objects in columns using Hibernate JPA

    - by user210791
    Is it possible to store something like the following using only one table? Right now, what hibernate will do is create two tables, one for Families and one for people. I would like for the familymembers object to be serialized into the column in the database. @Entity(name = "family") class Family{ private final List<Person> familyMembers; } class Person{ String firstName, lastName; int age; }

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  • Mixing Windows and Forms Authentication in ASP.NET MVC

    - by Chris Meek
    I'm currently trying to set up a website that uses both windows authentication and forms authentication. I am using ASP.NET MVC and both IIS6 and 7 need to be supported. How would I go about letting known AD users into the app (their AD id is stored against their user record in the application database) and directing everyone else to a standard username/password page.

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