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  • How to program simple chat bot AI?

    - by Larsenal
    I want to build a bot that asks someone a few simple questions and branches based on the answer. I realize parsing meaning from the human responses will be challenging, but how do you setup the program to deal with the "state" of the conversation? EDIT: It will be a one-to-one conversation between a human and the bot.

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  • What is an efficient way to find a non-colliding rectangle nearest to a location

    - by hyn
    For a 2D game I am working on, I am using y axis sorting in a simple rectangle-based collision detection. This is working fine, and now I want to find the nearest empty rectangle at a given location with a given size, efficiently. How can I do this? Is there an algorithm? I could think of a simple brute force grid test (with each grid the size of the empty space we're looking for) but obviously this is slow and not even a complete test.

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  • WCF Endpoint rounting

    - by Dmitriy Sosunov
    Hi, Guys, how to route inbound message between different endpoints. I need to expose the single endpoint that could accept different credentials. I guess, solve this by intercept the incoming message and based on message header then do forward message to appropriate endpoint. Thanks.

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  • How to use JavaScript to measure how bright a users monitor is ?

    - by HankV
    I've noticed that the brightness of computer monitors drastically varies between computers. As such, this changes the look of web pages greatly. Is there a way to use JavaScript to automatically detect how bright (or dark) a users monitor is so that I can adjust my web page colors accordingly? UPDATE Please note that I do not want manual user involvement. I want this detection to be automatic so that users don't realize I dynamically change the color palette automatically based on the brightness/darkness of their monitor.

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  • K-Means Algorithm and java code

    - by Thandar
    Hi all, I need to calculate for grouping objects according to their size. I got k-means algorithms in java which calculate mostly for classifying according to their two or more features and the results are not satisfy for me.I only want to calculate for grouping objects based on one feature.Pseudocode or code would be helpful, too. Thanks u all for helping.

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  • immplementing security with session variables, how it is insecure

    - by haansi
    Hello, I am doing web based projects in dotnet. Currently I am implementing security using session variables. I keep current user id and user type in session and authenticate user from these session variables (say Session["UserId"],Session["UserName"] and Session["UserType"]) I do authentications. Please guide me how it is insecure ? I heard such security can be broken and applications can be hacked very easily, like it is possible to get session id and directly connect to that session id etc. Please guide me on this thanks

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  • Which framework should I choose - Seam, Wicket, JSF or GWT?

    - by karl
    I'm debating whether to use Seam, Wicket, JSF or GWT as the foundation for my presentation layer in a Java project. I narrowed my selection of Java web frameworks down to this subset based on job market considerations, newness of the technology and recommendations from other S.O. users. What factors should I take into consideration in deciding among these?

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  • Creating a shared HSQLDB database

    - by Robert Munteanu
    In-process HSQLDB database are not expected to be opened by others, even for file-based storage. The documentation hints that this is possible: Server Modes, Advanced Topics, but I've not yet found a URL for how to activate this behaviour. Did anyone do this so they can share how to?

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  • Not naming a type - C++

    - by ML
    I am trying to convert an Adobe CS4 based plugin to CS5. This project has never been mine, this is the first time that i am seeing it. When I compile the source with what i was given, I get errors like: Does not name a type Example: SPAPI SPErr SPBasicAcquireSuite( const char *name, int64 version, const void **suite ); I get that: SPErr does not name a type I dont see any classes with SPErr being defined, but I doubt that Adobe has left this out of the SDK. I am using the PS_CS5_SDK_3 SDK

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  • Projects/Challenges for learning programming

    - by DMan
    Not sure if this has been asked before, and I'm making this a wiki... Anyways, I'm sure you've heard of Project Euler. My question is if there are any other sites like this? You know, more challenges and things for programmers to hone their skills? I like Euler but it's strictly math-based, and I'd like to expand it a little to other topics.

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  • Why is Serializable Attribute required for an object to be serialized

    - by Keivan
    Based on my understanding SerializableAttribute provides no compile time checks, as its all done at runtime, then why is it required for classes to be marked as serializable? Couldn't sterilizer just try to serialize an object and just fail? isn't it what it does right-now when something is marked, it tries and fails. wouldn't it be better if you had to mark things as unserializable rather than serializable? that way you wouldn't have the problem of libraries not marking things as serializable?

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  • Validate HTML entities in JavaScript

    - by Eduard Luca
    I have a small JavaScript validation script that validates inputs based on Regex. I want to allow certain characters that are not exactly common (not sure if they're UTF8). For example I want to allow the following character ’, which looks like a single quote, but isn't. I got the HTML code for this which is &#8217;, but I'm not sure how to put this into the Regex. I've tried just inputting [&#8217]* but it doesn't validate.

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  • PostGres if query?

    - by KnockKnockWhosThere
    Is there a way to select records based using an if statement? My table looks like this: id | num | dis 1 | 4 | 0.5234333 2 | 4 | 8.2234 3 | 8 | 2.3325 4 | 8 | 1.4553 5 | 4 | 3.43324 And I want to select the num and dis where dis is the lowest number... So, a query that will produce the following results: id | num | dis 1 | 4 | 0.5234333 4 | 8 | 1.4553

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  • MooTools event listener disappears after element.innerHTML is changed

    - by acoder
    Hi everyone, I am trying to achieve this task using MooTools. Description: I attached an event listener to "myButton" link. A click on this link initiates an AJAX request and updates "myDiv" content based on the response text. During this request a POST variable is being sent to "button.php", but it's not used at the moment.. (i wish to use it later) OK, as a result, "myDiv" gets exactly the same link with the same ID (myButton) + a random number, so that we could see that each click generates a new number. The problem: After the first click on "myButton", "myDiv" updates correctly, showing a random number. When I click "myButton" for the second time (this time in newly updated div), the div does not refresh anymore. Please note that I need "myButton" to be inside "myDiv", and "myDiv" must be updated (refreshed) after each click without having to refresh the entire page. Can somebody show me how to achieve this task based on this simplified code example? index.html <html> <head> <script type="text/javascript" src="mootools-1.2.4-core-nc.js"></script> <script> window.addEvent('domready', function() { $('myButton').addEvent('click', function(e) { e.stop(); var myRequest = new Request({ method: 'post', url: 'button.php', data: { action : 'test' }, onRequest: function() { $('myDiv').innerHTML = '<img src="images/loading.gif" />'; }, onComplete: function(response) { $('myDiv').innerHTML = response; } }); myRequest.send(); $('myButton').removeEvent('click'); }); }); </script> </head> <body> <div id="myDiv"> <a id="myButton" href="#">Button</a> </div> </body> </html> button.php <a id="myButton" href="#">Button</a> clicked <?php echo rand(1,100); ?>

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  • How to store values in database C# ?

    - by hello-all
    Hello all, I have a form that has text boxes, buttons on it for the user to sign up and sign in. I need to store the entered sign up credentials in any database(Oracle, Service based database, local database). Then when he tries to sign in, entered credentials should be compared with stored sign up values for authentication. This is done in visual studio, c#. Can anyone please give me hints or any references? Thank you

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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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  • Does a lazy-programmer file auto-generator tags exist?

    - by Anthony Forloney
    I was wondering (if possible) if there was a program/tool/utility that when I create a new file and provide it with an extension that it creates the tags automatically? For example, a new file I create called index.php would have the appropriate tags auto-generated inside: <?php ?> I hope you get the idea. Does one, or could one, exist, preferably Windows based? Any information regarding this would be helpful.

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  • if else within CTE ?

    - by stackoverflowuser
    I want to execute select statement within CTE based on a codition. something like below ;with CTE_AorB ( if(condition) select * from table_A else select * from table_B ), CTE_C as ( select * from CTE_AorB // processing is removed ) But i get error on this. Is it possible to have if else within CTEs? If not is there a work around Or a better approach. Thanks.

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  • code to identify the number

    - by [email protected]
    Hi All, I got one problem while doing one TAPI application based project in C#. I'm using ITAPI3.dll My problem is.. i'm not getting incoming call information. To get the incoming call information, i'm using the getcallinfo function, but it is showing empty message.

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