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  • How to prune data set by frequency to conform to paper's description

    - by sakura90
    The MovieLens data set provides a table with columns: userid | movieid | tag | timestamp I have trouble reproducing the way they pruned the MovieLens data set used in: Tag Informed Collaborative Filtering, by Zhen, Li and Young In 4.1 Data Set of the above paper, it writes "For the tagging information, we only keep those tags which are added on at least 3 distinct movies. As for the users, we only keep those users who used at least 3 distinct tags in their tagging history. For movies, we only keep those movies that are annotated by at least 3 distinct tags." I tried to query the database: select TMP.userid, count(*) as tagnum from (select distinct T.userid as userid, T.tag as tag from tags T) AS TMP group by TMP.userid having tagnum >= 3; I got a list of 1760 users who labeled 3 distinct tags. However, some of the tags are not added on at least 3 distinct movies. Any help is appreciated.

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  • Upload images API on 3rd Party host .. Flickr ?

    - by Enatom
    I am building an Image Sharing feature for my website, where users can upload images and show it off on my website, through their own profile gallery. Except I dont want to physically host the uploaded images. Are there API's that can allow me to descretly save the uploaded images (from the users) to another Host, such as Flickr, Google etc.. I know Flickr has a good API, but could I use it for this? And does the Flickr Upload API only work with authorised users ? becuase I dont want them to upload to their Flickr account, but just host them with 1 big account so to speak thanks.

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  • Login fails after upgrade to ASP.net 4.0 from 3.5

    - by lomac
    I cannot log in using any of the membership accounts using .net 4.0 version of the app. It fails like it's the wrong password, and FailedPasswordAttemptCount is incremented in my_aspnet_membership table. (I am using membership with mysql membership provider.) I can create new users. They appear in the database. But I cannot log in using the new user credentials (yes, IsApproved is 1). One clue is that the hashed passwords in the database is longer for the users created using the asp.net 4.0 version, e.g 3lwRden4e4Cm+cWVY/spa8oC3XGiKyQ2UWs5fxQ5l7g=, and the old .net 3.5 ones are all like +JQf1EcttK+3fZiFpbBANKVa92c=. I can still log in when connecting to the same db with the .net 3.5 version, but only to the old accounts, not the new ones created with the .net 4.0 version. The 4.0 version cannot log in to any accounts. I tried dropping the whole database on my test system, the membership tables are then auto created on first run, but it's still the same, can create users, but can't log in.

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  • Data scheme question

    - by Matt
    I am designing a data model for a local city page, more like requirements for it. So 4 tables: Country, State, City, neighbourhood. Real life relationships is: Country owns multiple State which owns multiple cities which ows multiple neighbourhoods. In the data model: Do we link these with FK the same way or link each with each? Like in each table there will even be a Country ID, State ID, CityID and NeighbourhoodID so each connected with each? Other wise to reach neighbourhood from country we need to join 2 other tables in between? There are more tables I need to maintain for IP addess of cities, latitude/longitude, etc.

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  • Dealing with HTTP content in HTTPS pages

    - by El Yobo
    We have a site which is accessed entirely over HTTPS, but sometimes display external content which is HTTP (images from RSS feeds, mainly). The vast majority of our users are also stuck on IE6. I would both of the following Prevent the IE warning message about insecure content Present something useful to users in place of the images that they can't otherwise see; if there was some JS I could run to figure out which images haven't been loaded and replace them with an image of ours instead that would be great. I suspect that the first aim is simply not possible, but the second may be sufficient. A worst case scenario is that I parse the RSS feeds when we import them, grab the images store them locally so that the users can access them that way, but it seems like a lot of pain for reasonably little gain.

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  • What is a good approach for a Data Access Layer?

    - by Adil Mughal
    Our software is a customized Human Resource Management System (HRMS) using ASP.NET with Oracle as the database and now we are actually moving to make it a product that supports multiple tenants with their own databases. Our options: Use NHibernate to support Multiple databases and use of OO. But we concern related to NHibernate learning curve and any problem we faced. Make a generalized DAL which will continue working with Oracle using stored procedures and use tools to convert it to other databases such as SQL Server or MySql. There is a risk associated with having to support multiple database-dependent versions of a single script. Provide the software as a Service (SaaS) and maintain the way we conduct business. However there can may be clients who do not want or trust the Cloud or other SaaS business models. With this in mind, what's the best Data access layer technique?

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  • problem when opening new window in asp.net application, new window didnt show anything

    - by Ashian
    Hello I have an asp.net application which I used some Ajax method. in some cases I open an new window ( Full Screen ) and users must work on it. the problem is , some users report me that some times new window was blank and didnt show any content , in status bar just write connecting .... and nothing else. Just when customers closed all opening browser and open again , they can view pages. this happend when users work for a while and click open new window links before the page loaded compeletly. how can I fix this problem? regards

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  • SVN: authz directory identifiers not support

    - by ledy
    Without using the authz, all the svn users can login and use the repos without issues. However, I would like to limit the access to some directories - not to be readable or writeable for all users. svnserve --version = 1.6.6 I tried both, granting access to users and groups. I also tried it separate, only group or only user access. [groups] admingroup=i_can_access_anything limitedgroup=i_am_limited [/] #*= @admingroup=rw i_can_access_anything=rw [projectX] #i also tried [repository:/projectX] #*= @limitedgroup=rw i_am_limited=rw Trying to access the / or /projectX at the svn fails. = access denied Without the authz, it works properly, but also grants access to other projects that do not belong to the "limited" user group :-/ Do you see what's wrong there? Thx

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  • Rails ActiveRecord- has_many through and belongs_to a related model

    - by Nick
    I have 3 models sites, user_favorites and users. Relevant relationships: class Site < ActiveRecord::Base has_many :users, :through => :user_favorites class UserFavorite < ActiveRecord::Base belongs_to :user, :counter_cache => true belongs_to :site end class User < ActiveRecord:Base has_many :user_favorites has_many :sites, :through => :user_favorites All of that works just fine. I'd like to add a new attribute to the Site model to indicate which user created it. I don't believe this constitutes a has_and_belongs_to_many scenario. A site has many users through user_favorites but I want it to belong to a single user reflecting the owner/creator. I'm wondering what the ORM best practice is for this. SQL wise I'd just use different joins depending on what I was trying to query with a created_by FK in Site. Sorry if I'm missing something basic here. Thanks

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  • Rails routes and model woes

    - by Chris Maness
    I'm a little new to rails sorry if this seems basic Alright so here's the deal I'm creating an application that will have many users and all the users have many songs. However when I try to create a song I get the following error:No action responded to 1. Actions: create and new and my browser is at the url: http://0.0.0.0:3000/users/1/songs which is not the correct route it should have redirected to songs/create Here is my controller code: class SongsController < ApplicationController def index @user = current_user @songs = @user.songs end def new @user = current_user @song = @user.songs.build end def create @user = current_user @song = @user.songs.build(params[:song]) if @song.save redirect_to user_song_url(@user, @song) else render :action => "new" end end end If anyone can help I would greatly appreciate it.

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  • Sending bulk notification emails without blocking

    - by FreshCode
    For my client's custom-built CRM, I want users (technicians) to be notified of changes to marked cases via email. This warrants a simple subscription mapping table between users and cases and automated emails to be sent every time a change is made to a case from within the logging method. How do I send 10-100 emails to subscribed users without bogging down my logging method? My SMTP server is on a peer on my LAN, so sends should be quick, but ideally this should be handled by an external queuing process. I can have a cron job send any outstanding emails every 10 minutes, but for this specific client cases are quite time-sensitive and instant notification (as instant as email can be) would be great. How can I send bulk notification emails from within ASP.NET MVC without bogging down my logging method?

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  • Is there a way to query if array field contains a certain value in Doctrine2?

    - by dpimka
    Starting out with Symfony2 + Doctrine. I have a table with User objects (fos_user), for which my schema contains a roles column of an 'array' type. Doctrine saves fields of this type by serializing them from php 'array' to 'longtext' (in mysql's case). So let's say I have the following users saved into DB: **User1**: array(ROLE_ADMIN, ROLE_CUSTOM1) **User2**: array(ROLE_ADMIN, ROLE_CUSTOM2) **User3**: array(ROLE_CUSTOM2) Now in my controller I want to select all users with ROLE_ADMIN set. Is there a way to write a DQL query which would directly return me User1 and User2? Or do I need to fetch all users to have Doctrine to unserialize roles column and then for each of them do in_array('ROLE_ADMIN', $user-getRoles())? I have searched the DQL part of the manual, but so far did not find anything similar to my needs...

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  • Android Shopping App And SQLite

    - by Melih Mucuk
    I want to develop shopping app for android and it should works like tinypay.me Users can sign up and they sell items or buy items immediately. I need to database. I want to use SQLite but I don't find any answer to these questions: SQLite database files are stored on the user's phone, isn't it ? If it's true, here is the scenario: User logged in, then he/she wants to sells something on app. He/she creates ad and he/she published it on the app. These variables writing their database. When other users logged in, will they see this ad? If it's possible, how can sync database between users ? Thanks for attention.

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  • Search function fails because it refers to the wrong controller action?

    - by Christoffer
    My Sunspot search function (sunspot_rails gem) works just fine in my index view, but when I duplicate it to my show view my search breaks... views/supplierproducts/show.html.erb <%= form_tag supplierproducts_path, :method => :get, :id => "supplierproducts_search" do %> <p> <%= text_field_tag :search, params[:search], placeholder: "Search by SKU, product name & EAN number..." %> </p> <div id="supplierproducts"><%= render 'supplierproducts' %></div> <% end %> assets/javascripts/application.js $(function () { $('#supplierproducts th a').live('click', function () { $.getScript(this.href); return false; } ); $('#supplierproducts_search input').keyup(function () { $.get($("#supplierproducts_search").attr("action"), $("#supplierproducts_search").serialize(), null, 'script'); return false; }); }); views/supplierproducts/show.js.erb $('#supplierproducts').html('<%= escape_javascript(render("supplierproducts")) %>'); views/supplierproducts/_supplierproducts.hmtl.erb <%= hidden_field_tag :direction, params[:direction] %> <%= hidden_field_tag :sort, params[:sort] %> <table class="table table-bordered"> <thead> <tr> <th><%= sortable "sku", "SKU" %></th> <th><%= sortable "name", "Product name" %></th> <th><%= sortable "stock", "Stock" %></th> <th><%= sortable "price", "Price" %></th> <th><%= sortable "ean", "EAN number" %></th> </tr> </thead> <% for supplierproduct in @supplier.supplierproducts %> <tbody> <tr> <td><%= supplierproduct.sku %></td> <td><%= supplierproduct.name %></td> <td><%= supplierproduct.stock %></td> <td><%= supplierproduct.price %></td> <td><%= supplierproduct.ean %></td> </tr> </tbody> <% end %> </table> controllers/supplierproducts_controller.rb class SupplierproductsController < ApplicationController helper_method :sort_column, :sort_direction def show @supplier = Supplier.find(params[:id]) @search = @supplier.supplierproducts.search do fulltext params[:search] end @supplierproducts = @search.results end end private def sort_column Supplierproduct.column_names.include?(params[:sort]) ? params[:sort] : "name" end def sort_direction %w[asc desc].include?(params[:direction]) ? params[:direction] : "asc" end models/supplierproduct.rb class Supplierproduct < ActiveRecord::Base attr_accessible :ean, :name, :price, :sku, :stock, :supplier_id belongs_to :supplier validates :supplier_id, presence: true searchable do text :ean, :name, :sku end end Visiting show.html.erb works just fine. Log shows: Started GET "/supplierproducts/2" for 127.0.0.1 at 2012-06-24 13:44:52 +0200 Processing by SupplierproductsController#show as HTML Parameters: {"id"=>"2"} Supplier Load (0.1ms) SELECT "suppliers".* FROM "suppliers" WHERE "suppliers"."id" = ? LIMIT 1 [["id", "2"]] SOLR Request (252.9ms) [ path=#<RSolr::Client:0x007fa5880b8e68> parameters={data: fq=type%3ASupplierproduct&start=0&rows=30&q=%2A%3A%2A, method: post, params: {:wt=>:ruby}, query: wt=ruby, headers: {"Content-Type"=>"application/x-www-form-urlencoded; charset=UTF-8"}, path: select, uri: http://localhost:8982/solr/select?wt=ruby, open_timeout: , read_timeout: } ] Supplierproduct Load (0.2ms) SELECT "supplierproducts".* FROM "supplierproducts" WHERE "supplierproducts"."id" IN (1) Supplierproduct Load (0.1ms) SELECT "supplierproducts".* FROM "supplierproducts" WHERE "supplierproducts"."supplier_id" = 2 Rendered supplierproducts/_supplierproducts.html.erb (2.2ms) Rendered supplierproducts/show.html.erb within layouts/application (3.3ms) Rendered layouts/_shim.html.erb (0.0ms) User Load (0.1ms) SELECT "users".* FROM "users" WHERE "users"."remember_token" = 'zMrtTbDun2MjMHRApSthCQ' LIMIT 1 Rendered layouts/_header.html.erb (2.1ms) Rendered layouts/_footer.html.erb (0.2ms) Completed 200 OK in 278ms (Views: 20.6ms | ActiveRecord: 0.6ms | Solr: 252.9ms) But it breaks when I type in a search. Log shows: Started GET "/supplierproducts?utf8=%E2%9C%93&search=a&direction=&sort=&_=1340538830635" for 127.0.0.1 at 2012-06-24 13:53:50 +0200 Processing by SupplierproductsController#index as JS Parameters: {"utf8"=>"?", "search"=>"a", "direction"=>"", "sort"=>"", "_"=>"1340538830635"} Rendered supplierproducts/_supplierproducts.html.erb (2.4ms) Rendered supplierproducts/index.js.erb (2.9ms) Completed 500 Internal Server Error in 6ms ActionView::Template::Error (undefined method `supplierproducts' for nil:NilClass): 10: <th><%= sortable "ean", "EAN number" %></th> 11: </tr> 12: </thead> 13: <% for supplierproduct in @supplier.supplierproducts %> 14: <tbody> 15: <tr> 16: <td><%= supplierproduct.sku %></td> app/views/supplierproducts/_supplierproducts.html.erb:13:in `_app_views_supplierproducts__supplierproducts_html_erb___2251600857885474606_70174444831200' app/views/supplierproducts/index.js.erb:1:in `_app_views_supplierproducts_index_js_erb___1613906916161905600_70174464073480' Rendered /Users/Computer/.rvm/gems/ruby-1.9.3-p194@myapp/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/_trace.erb (33.3ms) Rendered /Users/Computer/.rvm/gems/ruby-1.9.3-p194@myapp/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (0.9ms) Rendered /Users/Computer/.rvm/gems/ruby-1.9.3-p194@myapp/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/template_error.erb within rescues/layout (39.7ms)

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  • How to read ident from an ini file?

    - by user367856
    i have store a list of items from gridView into registry as below: * frmPOSConfigSet.tblCatItems.First; while not frmPOSConfigSet.tblCatItems.Eof do begin RegItemSetting.WriteString('stk Group\Candy', frmPOSConfigSet.tblCatItemsCODE.Text, frmPOSConfigSet.tblCatItemsSPHOTO.Text); frmPOSConfigSet.tblCatItems.Next; end; * [In Registry Editor] stk Group - Candy - YUPI_GUM_HB , c:\Users\chai\Pictures\POS Item Images\image1.jpg - YUPI_GUM_SBKISS , c:\Users\chai\Pictures\POS Item Images\image2.jpg After i close the form and open again, all values in gridView is gone, how do i retrieve the ident (eg. YUPI_GUM_HB) and it's value (eg.c:\Users\chai\Pictures\POS Item Images\image1.jpg) from registry to the gridView when load the form?

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  • Importing Classes Within a Module

    - by CodeJoust
    Currently, I have a parser with multiple classes that work together. For Instance: TreeParser creates multiple Product and Reactant modules which in turn create multiple Element classes. The TreeParser is called by a render method within the same module, which is called from the importer. Currently, using the class name in the imported module file works only if the file calling the module contains from module_name import *, so the classes are imported into the main namespace. Finally, if the package has dependencies (such as re and another another module within the same folder), where is the best place to require those modules? Within the __init__.py file or within the module itself? I don't really want to add the module name in front of every call to the class, in case I do call import *, however, is it possible to use a variable name of the current module to call the class, or use a workaround in the __init__.py file? I'm probably used to the ruby require '' method instead of python's module system.

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  • Generate Windows .lnk file with PHP

    - by Andrei
    Hello, I'm working on a project which involves an FTP server running ProFTPd and a PHP/MySQL backend that creates accounts for users. Upon the creation of accounts, users are sent e-mails with their account details and instructions for downloading FileZilla or CyberDuck, depending on their OS, detected via user-agent string. To make things easier for novices, I thought of having .lnk files generated for FileZilla with the account logins details as parameters, so they would just have to click on the .lnk files to open up the server. This is not crucial feature but more of a technical challenge. My questions are : is this even feasible ? are there any alternatives (eg. generating a .bat with a script pointing to the Filezilla executable ?) are there any issues, perhaps with relative / absolute paths pointing to the executable ? to go even further, what would be the simplest way of providing users with software with FTP access on a single account / single server (web interface is not an option).

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  • How can I access the value of a checkbox without a postback?

    - by Starwfanatic
    I have a radgrid controlling access to an application for users. There are two columns, a 'name' column and a checkbox 'access' column representing their current access permission. the checkboxes are populated from a database. I would like the to change the checkboxes to grant or deny access to the users I specify. Since there are alot of users I would like to make multiple changes and use a submit button to write the changes to the database. I do not want to postback with each checkbox change and wait for the page to "blink". My problem is that with the checkbox postback disabled, when I click submit, the value of the checkboxes are not registering the changes I make. I need a way to access the current client-side state of the checkbox or some workaround to accomplish this. Thanks in advance!

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  • crontab won't work on mac 10.6.7

    - by ohana
    i create a simple cron job by editing /etc/crontab as following: */2 * * * * * php /Users/min/Documents/testcron.php and the testcron.php is simple as: <?php $fd = fopen("/Users/min/Documents/testcron.txt", 'a'); fwrite($fd, "test--cron--\n"); fclose($fd); ?> then simply save the crontab file and hope magic happen, but nothing happened. i even run the command manually and it worked. php /Users/min/Documents/testcron.php anyone have any idea? Thanks

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  • Convert VB6 Randomize to C#

    - by Thomas G. Mayfield
    I'm writing a C# frontend to a legacy database that uses VB6 Rnd() and Randomize() methods for user password encryption. The encryption function is very simplistic and really not all that secure, but it's what all current passwords are stored with. What I'd like to be able to do is authenticate legacy users from a C# application. I can write new encryption (or preferably hashing) code for VB6 so that all future users have a more secure password, and that can be duplicated in C#. But I don't want to require current users to have had their password reset before they can use the new frontend. Is there any way I can reimplement that algorithm in C# so that it produces identical results to the legacy VB6 code?

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  • Parallel Task In C#.net

    - by Test123
    I have C#.net application. I wanted to run my application In Thread. But because of third party dll it dont allow to use application in multiThread. There is one object in thrid party dll ,which only allow to create instance at one time only. When i manually run application exe instnace multiple time & process my data it process successfully..(might because of each exe run with its application domain) Same thing i require to implement from C# code. for that i have created dll which can accessible by Type.GetTypeFromProgID()..but multiple dll instnace creating same problem. Is there any way i could achive manual parallelism through code to process same exe code in multiple application domain?

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  • Online webcam chat. Free server and easy-to-implement client?

    - by Oskar Kjellin
    I have a client requesting that his users can use their webcams to talk to each other. From what I've understood the main thing to use for this is Flash. However as I have not written flash I would like to have something really easy to implement. Of course preferrably free (or trial). The idea of this is that everything but the chat alone is in .net. So the users will not use flash until they are actaully going to talk to each other. So there is no use for rooms here. I've been looking into silverlight some as well. But it seems like silverlight does not offer streaming between users..? I know this question has been asked many times here. But I could not find a suitable answer which is why I post a new question.

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  • Creating a video chat application for drupal site

    - by Dswabster
    I am trying to write an application for website powered by drupal, basically i would like to create an application only authenticated users are able to use, and users are only allowed to connect with members of the opposite group they are a member of. I have been learning flash builder 4 and learning the basics of actionscript but I am still pretty new to Flash and Flex development. I would like to users to connect using the Adobe Stratus 2 protocol and if possible by authentication on existing site and using membership data from existing mysql database. If anyone could give me a nudge in the right direction on how I should go about creating this application or the next steps i should take, it would be greatly appreciated.

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  • Access sql server without directly permission in domain from ASP.NET

    - by Yongwei Xing
    Hi all Here is the situation. All the machines and users are in the same domain.We are in a domain enviroment. There are some sql server 2005/2008 storing data. There is a ASP.NET site in the domain using the Window Authentication. Now, we need read the data from the sql server and display them using SqlDataSource and GridView. But most of users do not have the direct permission to access the database. Is there any solution to get the data from database and display them on the site without granting users permission? Best Regards,

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  • Flex 3 and flash player caching

    - by ccdugga
    hi, i pass text strings from a configuration file into my Flex app, one of the strings i pass in is a mailto link which i use to allow users of my app to send me feedback. I recently needed to change this link however when i updated the link in my config file the change did not happen instantly in my Flex app. In fact i had to clear my cache (both browser and flash player) before the change showed up. This of course is fine for me but how can i be sure that users of the application also get the updated content? Is there a way to force a refresh of data loaded into my swf on other users browsers? Finally is this an issue with my browser cache or the Flash player cache? Does the flash player only keep such data, like my email address, in memory while the app is in use and then clear once it is closed or does it cache this data for the next time the user wants to use the app? Thanks!

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