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• Aggregating Excel cell contents that match a label [migrated]

  - by Josh

  I'm sure this isn't a terribly difficult thing, but it's not the type of question that easily lends itself to internet searches. I've been assigned a project for work involving a complex spreadsheet. I've done the usual =SUM and other basic Excel formulas, and I've got enough coding background that I'm able to at least fudge my way through VBA, but I'm not certain how to proceed with one part of the task. Simple version: On Sheet 1 I have a list of people (one on each row, person's name in column A), on sheet 2 I have a list of groups (one on each row, group name in column A). Each name in Sheet 1 has its own row, and I have a "Data Validation" dropdown menu where you choose the group each person belongs to. That dropdown is sourced from Sheet 2, where each group has a row. So essentially the data validation source for Sheet 1's "Group" column is just "=Sheet2!$a1:a100" or whatever. The problem is this: I want each group row in Sheet 2 to have a formula which results in a list of all the users which have been assigned to that group on Sheet 1. What I mean is something the equivalent of "select * from PeopleTab where GROUP = ThisGroup". The resulting cell would just stick the names together like "Bob Smith, Joe Jones, Sally Sanderson" I've been Googling for hours but I can't think of a way to phrase my search query to get the results I want. Here's an example of desired result (Dash-delimited. Can't find a way to make it look nice, table tags don't seem to work here): (Sheet 1) Bob Smith - Group 1 (selected from dropdown) Joe Jones - Group 2 (selected from dropdown) Sally Sanderson - Group 1 (selected from dropdown) (Sheet 2) Group 1 - Bob Smith, Sally Sanderson (result of formula) Group 2 - Joe Jones (result of formula) What formula (or even what function) do I use on that second column of sheet 2 to make a flat list out of the members of that group?

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• When is meta description still relevant?

  - by Jeff Atwood

  I received this bit of advice about the meta description tag recently: Meta descriptions are used by Google probably 80% of the time for the snippet. They don’t help with rankings but you should probably use them. You could just auto generate them from the first part of the question. The description tag exists in the header, like so: <meta name="Description" content="A brief summary of the content on the page."> I'm not sure why we would need this field, as Google seems perfectly capable of showing the relevant search terms in context in the search result pages, like so (I searched for c# list performance): In other words, where would a meta description summary improve these results? We want the page to show context around the actual search hits, not a random summary we inserted! Google Webmaster Central has this advice: For some sites, like news media sources, generating an accurate and unique description for each page is easy: since each article is hand-written, it takes minimal effort to also add a one-sentence description. For larger database-driven sites, like product aggregators, hand-written descriptions are more difficult. In the latter case, though, programmatic generation of the descriptions can be appropriate and is encouraged -- just make sure that your descriptions are not "spammy." Good descriptions are human-readable and diverse, as we talked about in the first point above. The page-specific data we mentioned in the second point is a good candidate for programmatic generation. I'm struggling to think of any scenario when I would want the Google-generated summary, that is, actual context from the page for the search terms, to be replaced by a hard-coded meta description summary of the question itself.

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• SSMS Tools Pack 2.0 is out! With huge productivity booster features that will blow your mind and ease your job even more.

  - by Mladen Prajdic

  What better way to end the summer and start those productive autumn days ahead than with a fresh new version of the SSMS Tools Pack. This is a big release with two new features that are huge productivity boosters. First new feature are Tab Sessions. Every SQL tab you open is saved every N (default 2) minutes and is stored in a session. This works similar to internet browser sessions. Once you reopen SSMS you can restores your last session with a click of a button. You even get every window connected to the server it was previously connected to. The Tab History Window looks like this:   The second feature is Execution Plan Analyzer. It is designed to quickly help you find costliest operators by a number of properties. If that's not enough you can easily search through the whole execution plan for whatever you like. And to top it off you can auto analyze the execution plan. The analysis reports various problems the execution plan has and suggests a most common solution. The ultimate purpose of the Execution Plan Analyzer is to make your troubleshooting quicker and easier. It uses a simple user interface that is easy to navigate and is built directly into the execution plan itself. The execution plan analyzer looks like this:   Smaller fixes include a completely redesigned SQL History Search window and various other bug fixes. You can download the new version 2.0 at the Download page. For more detailed feature descriptions go to the main Features Page. Enjoy it!

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• How does the ? make a quantifier lazy in regex

  - by Uriel Katz

  I've been looking into regex lately and figured that the ? operator makes the *,+, or ? lazy. My question is how does it do that? Is it that *? for example is a special operator, or does the ? have an effect on the *? In other words, does regex recognize *? as one operator in itself, or does regex recognize *? as the two separate operators * and ?? If it is the case that *? is being recognized as two separate operators, how does the ? affect the * to make it lazy. If ? means that the * is optional, shouldn't this mean that the * doesn't have to exists at all. If so, then in a statement .*? wouldn't regex just match separate letters and the whole string instead of the shorter string? Please explain, I'm desperate to understand.

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• Highly SEO optimised forum posts

  - by Tom Gullen

  Given the following forum post: Basics of how internals of Construct work I've used GameMaker in the past. And I know some C++ and have used a few 3d engines with it. I have also looked at Unity, though I didn't get too much into it. So I know my way around programming etc... My question is, how does construct work internally? I know it allows python scripting, which itself is "technically" interpreted, though python is pretty fast as far as being interpreted goes. But what about the rest? Is the executable that gets cre... The forum software will take the first 150 chars of the first post as the page meta description, and the title will be the thread title. All ok. So in Google it will appear as: Basics of how internals of Construct work I've used GameMaker in the past. And I know some C++ and have used a few 3d engines with it. I have also looked at Unity, though I didn't get too much... http://www.domain.com/forum/basics-of-how-internals-of-construct-work.html Now the problem is (not so much with this thread, but other ones) is the first 150 chars don't always create the best meta description. Is it worth my time to cherry pick threads and manually set their description/title tags so they read like: Internal workings of Construct 2 Events aren't converted to any other language. The runtime is a standalone compiled EXE application, which is optimised and actually very fast. Your events... http://www.domain.com/forum/basics-of-how-internals-of-construct-work.html The H1 on the page is still the original title, but we have overridden the title and description to look more friendly on search results. Is this advantageous forgetting the obvious time cost?

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• Make a controller a superclass in MVC design pattern

  - by Nikola

  I am really confused how to handle this. I have: model.Outsider model.SubContractor (which extends Outsider) Basically, Outsider would mean Supplier, but SubContractor is not a Supplier itself so I had to divide it somehow. I used to have model.Outsider (super class of the two bellow) model.Supplier model.SubContractor But Supplier didn't have any unique fields so I have removed it (Was this correct?) So, continuing, I have db layer which has: db.DBOutsider db.DBSubContractor (which again extends the top one) And I have no place to put my Supplier methods. I can do that in DBOutsider, but then DBSubContractor (which extends DBOutsider) would get unnecessary methods. Do I create a DBSupplier even though there is no such class in the model layer? Then again, going to controller layer. It is the same situation as db layer. I have OutsiderController and SubContractorController (which extends the first one) (is this correct in first place? to have an extended controller?). But I have no place to put the methods which are concerned with Supplier and if I put them in the OutsiderController the SubContractorController would recieve unneccessary methods. At the moment I am going for the extra DBSupplier and SupplierController classes, but I have no idea if this is the correct way. Basically what perplexes me is the "empty" Supplier. Since it is supposed to be an Outsider but has no extra methods or fields, should there be an empty class?

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• Collocation in Code

  - by Dan McGrath

  Quite some time ago I remember reading an article from 'Joel on Software' that mentioned collocation of information in code was important. By collocation, I mean that relevant information about the code is present when the code is. I'm currently writing an article that has a small bit in it about collocation so I went searching for sources and found the quote in the article 'Making Wrong Code Look Wrong' In order to make code really, really robust, when you code-review it, you need to have coding conventions that allow collocation. In other words, the more information about what code is doing is located right in front of your eyes, the better a job you’ll do at finding the mistakes. When you have code that says For me, collocation isn't just about the code itself, but the tool used to view the code. If it can help with the 'collocation factor' (term coined by me?) I believe it can help with the programmers productivity. Take for example the modern IDEs that show you the variables type by hovering over it. Are their any other articles written about collocation in code and/or are their other terms that this is known by?

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• XNA - Saving Game Data without TypeWriter?

  - by Zabby

  In the past, I've had some trouble with reading and writing content for XNA. I think I'm firmly set on this tutorial which sets up a four project structure (Game, Content, Library, Pipeline Extension) for the solution that other websites suggest, too. The options it offers for content reading seem great. But problem! This tutorial (and all others I've found) have stated that the Content Pipeline Extension Project is not distributed with the game, which is fine in itself, but this is combined with the fact that any content writing objects are placed in this non-distributable library. The ability to actually write content of an already existing type (save game files, namely) is pretty critical to the project I'm trying to make. I've already learned the hard way you simply can't place the Content Pipeline reference in another project besides the extension for easier access to the intermediate deserializer. Is there another object I can access for writing save game data? Am I actually, despite the warnings of this tutorial, able to use the TypeWriter outside of the Content Pipeline Extension Project? Or is there a third option I am missing here?

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• Should I list this work experience on my resume? [closed]

  - by Phoenix

  I am currently working at a company. I did an internship before this job with a prestigious company and project itself was challenging but it was in the initial phases and hence there were no tight schedules and we ended up doing brainstorming for the first month and the 2nd month actually setting up our hardware, which is linux servers in lab and a cluster administrator for the servers. And then i wrote an addin task which runs on the server and uses existing API to collect some statistics from the the servers in the cluster and feeding them into another entity which is basically an algorithm that calculates how the load on the servers should be automatically balanced. Neither of these things went into production by the time I left the company and I'm not even sure of their current state. Does it make sense to include it in my resume then? I also worked as a software engineer right out of school at another prestigious company for 9 months. I was involved in some bug fixes before the product launched and I don't even recollect the exact fixes I made to the product. So, will it make sense to have these experiences on my resume ? Will people question me about them and will saying it was bug fixes and mentioning what kind of fixes suffice as enough to justify my work ex there ?

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• How do I handle having too many links on a webpage because of my menu

  - by RandomBen

  I am developing a website that has a drop-down menu at the top of it. The Menu has around 100 links in it that are repeated on every page. Every page also has some number of links below the Menu that may or may not be in the menu itself. My issue is that Google says they generally don't like pages with more than 100 links on them. Is there any way to change the links on the menu so that they no longer "count" towards my max of 100 links? It seems like there should be an easy way to do this but their really doesn't seem to be. the rel=nofollow still counts towards the number of links on the page at least according to Google, so what other options do I have? I looked into where the 100 comes from and I found that it used to be here: http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=35769#2 but that is no longer the case. I found a more definitive and frankly muddier answer here: http://www.seomoz.org/blog/questions-answers-with-googles-spam-guru from Matt Cutts from 2007. Long story short, in 2007 they still felt 100 links was a good number but they stated you could go far beyond that. In fact, they said that pages with high PageRank could have 2-300. It did sound like having many links could reduce the PageRank of the page with all of the links or possibly all of the items linked to. Also, I know IIS7's SEO 1.0 toolkit suggests that pages should have no more than 250 links.

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• Bizarre image loading problem from apache2

  - by NateDSaint

  Users have complained a few times about seeing a bizarre set of pink or green stripes on our webpage. At first I thought there were a rash of video card outages, but then someone sent me a screenshot from their browser (IE8). I later saw the same thing, but with slightly different colors on Chrome. Users have experienced this on their iPads and iPhones (iOS Safari). Because I've optimized the site to cache images, the bad image stays around until you clear your cache, so once you do, it resolves itself. My assumption is that the transmission of the image is being cut off mid-stream and then staying that way, but I can't for the life of me figure out why. Here's what I've checked: Header length is being sent, and transmission looks okay (wget sample below): wget http://www.superiorlivestock.com/templates/sla2/images/wallbg2.jpg --2012-04-05 08:46:00-- http://www.superiorlivestock.com/templates/sla2/images/wallbg2.jpg Resolving www.superiorlivestock.com (www.superiorlivestock.com)... [ip redacted] Connecting to www.superiorlivestock.com (www.superiorlivestock.com)|[ip redacted]|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 45926 (45K) [image/jpeg] Saving to: `wallbg2.jpg' Images are not being served gzipped (apache conf below): SetOutputFilter DEFLATE SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary The site is www.superiorlivestock.com, and here's a sample of the bad page load: Is there something obvious I'm missing? Am I saving my images in the wrong format somehow?

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• WoW lua: Getting quest attributes before the QUEST_DETAIL event

  - by Matt DiTrolio

  I'd like to determine the attributes of a quest (i.e., information provided by functions such as QuestIsDaily and IsQuestCompletable) before the player clicks on the quest detail. I'm trying to write an add-on that handles accepting and completing of daily quests with a single click on the NPC, but I'm running into a problem whereby I can't find out anything about a given quest unless the quest text is currently being displayed, defeating the purpose of the add-on. Other add-ons of this nature seem to be getting around this limitation by hard-coding information about quests, an approach I don't much like as it requires constant maintenance. It seems to me that this information must be available somehow, as the game itself can properly figure out which icon to display over the head of the NPC without player interaction. The only question is, are add-on authors allowed access to this information? If so, how? EDIT: What I originally left out was that the situations I'm trying to address are when: An NPC has multiple quests The quest detail is not the first thing that shows up upon right-click Otherwise, the situation is much simpler, as I have the information I need provided immediately.

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• How to prevent 2D camera rotation if it would violate the bounds of the camera?

  - by Andrew Price

  I'm working on a Camera class and I have a rectangle field named Bounds that determines the bounds of the camera. I have it working for zooming and moving the camera so that the camera cannot exit its bounds. However, I'm a bit confused on how to do the same for rotation. Currently I allow rotating of the camera's Z-axis. However, if sufficiently zoomed out, upon rotating the camera, areas of the screen outside the camera's bounds can be shown. I'd like to deny the rotation assuming it meant that the newly rotated camera would expose areas outside the camera's bounds, but I'm not quite sure how. I'm still new to Matrix and Vector math and I'm not quite sure how to model if the newly rotated camera sees outside of its bounds, undo the rotation. Here's an image showing the problem: http://i.stack.imgur.com/NqprC.png The red is out of bounds and as a result, the camera should never be allowed to rotate itself like this. This seems like it would be a problem with all rotated values, but this is not the case when the camera is zoomed in enough. Here are the current member variables for the Camera class: private Vector2 _position = Vector2.Zero; private Vector2 _origin = Vector2.Zero; private Rectangle? _bounds = Rectangle.Empty; private float _rotation = 0.0f; private float _zoom = 1.0f; Is this possible to do? If so, could someone give me some guidance on how to accomplish this? Thanks. EDIT: I forgot to mention I am using a transformation matrix style camera that I input in to SpriteBatch.Begin. I am using the same transformation matrix from this tutorial.

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• GIS-based data visualization and maintenance tool

  - by Dave Jarvis

  Background Looking to leverage an existing GIS system for exploring organizational data. Architecture The following figure represents a high-level overview of the system's desired features: The most basic usage would be as follows: The user visits a web site. The system presents a map (having regions, cities, and buildings). The user drills-down on the map to a particular building. The system provides a basic CRUD interface. The user can view and modify information about personnel (e.g., their assigned teams), equipment (e.g., network appliances), applications, and the building itself (e.g., contact and phone numbers). Ideally, all the components should be open-source (or otherwise free). Problem This must be a small project that needs a quick (but functional) prototype, mostly to confirm whether or not such a system would be useful in the long term. Questions What software components would you use to quickly develop a working prototype? What open-source solutions already exist, if any? Ideas Here is what I am thinking: PostGIS - Define the regions, cities, and sites Google Maps - Display an interactive, clickable map geoJSON - Protocol between PostGIS and Google Maps Seam - CRUD interface Custom Development For example, this would entail: Installation and configuration Configure SSH for remote logins Subversion (or git) PostgreSQL PostGIS Java Tomcat Seam JasperReports Enter GIS information into PostGIS Aggregate data sources into PostgreSQL database Develop starting page for map interface Develop clickable Google Maps interface Develop summary reports Develop CRUD interface using Seam for data maintenance Surely something like this already exists? Thank you!

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• controlling an object through another object ?

  - by Stefano Borini

  Today I've seen the following pattern: you have an object A and an object B. Object B accepts a pointer to A at its constructor. Once B is created, there's a method B.doCalc() that performs a calculation (internally using A's information). The result is obtained with method B.getResult(). In order to perform another calculation, A is modified, and B.doCalc() is called again. What is your opinion on this choice ? I would have designed it differently, but I want to hear your voice. Edit : note that my main objection is to modify A to have a different result from B, without touching B. Although similar, I think that just this discipline expresses a much better feeling of what's going on. Instead of a = new A a.whatever = 5 b = new B(a) b.doCalc() res = b.getResult() a.whatever = 6 b.doCalc() res = b.getResult() You get the a pointer object from b itself. a = new A a.whatever = 5 b = new B(a) b.doCalc() res = b.getResult() a = b.getAPointer() a.whatever = 6 b.doCalc() res = b.getResult() because it makes more explicit the fact that a is taken from b and then modified. I still don't like it, though...

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• Is this kind of Design by Contract useless?

  - by Charlie Pigarelli

  I've just started informatics university and I'm attending a programming course about C(++). The programming professor prefers to teach very few things (in 3 month we have just reached the functions topic) and connect every topic with a type of programming design that somehow is similar to the Design by Contract design. Basically what he ask us to do is to write every exercise with comments Pre-conditions, Post-conditions and Invariants that should prove the correctness of each program we write. But this doesn't make any sense to me. I mean, ok: maybe writing down your thoughts prevent you from doing some mistakes, but if this is all an abstract thing, then if your program intuition is wrong you'll write your program wrong and then you'll also write pre and post conditions wrong probably auto convincing your self about its correctness. Most of the time, both me and other students have written programs that seemed ok and that had correct pre and post condition too. But at the moment of testing it was just completely wrong. I had some experience before this course of programming and I had written a lot of line of code before and I found myself comfortably with just writing a program and unit test it. It take less time to accomplish and is less "abstract" than just thinking about what every single piece of your program should do in every case (which is kinda like mentally testing it). Finally, all this pre and post conditions takes me like 80% of the total time of the exercise. It's harder to think about putting down this pre and post correct than to write the program itself. Since we are like the only course of the only university probably in the entire world that makes this things, could someone please tell me how should I manage this thing? Am I right thinking that this doesn't worth anything? Should I change university? (there are like double of the people attending that course and it seems that usually very few people passes the exam the first year). Should I convince myself it's method is right?

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• Introducing the Industry's First Analytics Machine, Oracle Exalytics

  - by Manan Goel

  Analytics is all about gaining insights from the data for better decision making. The business press is abuzz with examples of leading organizations across the world using data-driven insights for strategic, financial and operational excellence. A recent study on “data-driven decision making” conducted by researchers at MIT and Wharton provides empirical evidence that “firms that adopt data-driven decision making have output and productivity that is 5-6% higher than the competition”. The potential payoff for firms can range from higher shareholder value to a market leadership position. However, the vision of delivering fast, interactive, insightful analytics has remained elusive for most organizations. Most enterprise IT organizations continue to struggle to deliver actionable analytics due to time-sensitive, sprawling requirements and ever tightening budgets. The issue is further exasperated by the fact that most enterprise analytics solutions require dealing with a number of hardware, software, storage and networking vendors and precious resources are wasted integrating the hardware and software components to deliver a complete analytical solution. Oracle Exalytics In-Memory Machine is the world’s first engineered system specifically designed to deliver high performance analysis, modeling and planning. Built using industry-standard hardware, market-leading business intelligence software and in-memory database technology, Oracle Exalytics is an optimized system that delivers answers to all your business questions with unmatched speed, intelligence, simplicity and manageability. Oracle Exalytics’s unmatched speed, visualizations and scalability delivers extreme performance for existing analytical and enterprise performance management applications and enables a new class of intelligent applications like Yield Management, Revenue Management, Demand Forecasting, Inventory Management, Pricing Optimization, Profitability Management, Rolling Forecast and Virtual Close etc. Requiring no application redesign, Oracle Exalytics can be deployed in existing IT environments by itself or in conjunction with Oracle Exadata and/or Oracle Exalogic to enable extreme performance and best in class user experience. Based on proven hardware, software and in-memory technology, Oracle Exalytics lowers the total cost of ownership, reduces operational risk and provides unprecedented analytical capability for workgroup, departmental and enterprise wide deployments. Click here to learn more about Oracle Exalytics.  

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• Where should SQL/DB Queries be encapsulated in a software system?

  - by Stephen Bennet

  I frequently write small applications (either web based or otherwise) that require heavy database usage. i've attempted various ways of handling where to put the actual sql queries (sort of ad-hoc ORM systems). These include: Models that build themselves up - and only allowing SQL to be inside of a model. A sort of factory style method where the models are built by a factory class that is allowed to know about SQL. A third entity that maps models based on their fields/keys into the database and generates SQL code on the fly based on this. Is there a common knowledge of which method is best? Or another way I have missed? Clearly a lot of it will be based on the context of the system itself, which for me is usually to produce lightweight tools or utility frameworks. In experimenting, I've never found any of them that feel intuitively "right" and not clunky, but I also do not want to go for a full framework such as Django or Ruby - both because the tools I create are in a variety of languages and because they usually do not warrant that level of surrounding footprint.

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• Static classes and/or singletons -- How many does it take to become a code smell?

  - by Earlz

  In my projects I use quite a lot of static classes. These are usually classes that naturally seem to fit into a single-instance type of thing. Many times I use static classes and recently I've started using some singletons. How many of these does it take to become a code smell? For instance, in my recent project which has a lot of static classes is an Authentication library for ASP.Net. I use a static class for a helper class that fixes ASP.Net error codes so it can be used like CustomErrorsFixer.Fix(Context); Or my authentication class itself is a static class //in global.asax's begin_application Authentication.SomeState="blah"; Authentication.SomeOption=true; //etc //in global.asax's begin_request Authentication.Authenticate(); When are static or singleton classes bad to use? Am I doing it wrong, or am I just in a project that by definition has very little per-instance state associated with it? The only per-instance state I have is stored in HttpContext.Current.Items like so: /// <summary> /// The current user logged in for the HTTP request. If there is not a user logged in, this will be null. /// </summary> public static UserData CurrentUser{ get{ return HttpContext.Current.Items["fscauth_currentuser"] as UserData; //use HttpContext.Current as a little place to persist static data for this request } private set{ HttpContext.Current.Items["fscauth_currentuser"]=value; } }

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• DNS NAmeserver Aname and cname records [closed]

  - by David

  I am inexperienced in the configuration of DNS and have an issue with dominan hosting set up. I have two domains 'www.mydomain1.com' and 'www.mydomain2.com', with mydomain2 pointed at the same place as mydomain1. The domains were passed to me recently by the person who previoulsy controlled them. I have an account with Fasthosts in the UK. When I accepted the domains I could not access the DNS settings and inquired with fasthosts as to why. The reply was: The delegate hosting option for both domains were enabled and this is the reason why you were unable to find the option to edit the advanced DNS records. I have now disabled the delegate hosting option so you can now edit the advanced DNS records for both domains in your account. When I log into the Fasthost control panel now I can access the DNS controls but both domains have no A record or Cname record set up. I am concerned that Fasthosts have blatted the previous Nameserver entries and set me up on theirs but not added any record. 'www.mydomain1.com' currently still works but 'www.mydomain2.com' does not find the site anymore. I am worried I will lose mydomain1 to as the DNS changes filter through the system. my webhosting is at 'xxx.xxx.xxx.xxx/mydomain1.com/' and this is where I want both domains to point. Any advice would be much appreciated. One thing which is confusing me is that because I am on a shared server I have to put 'xxx.xxx.xxx.xxx/mydomain1.com/' to get to my site rather than just 'xxx.xxx.xxx.xxx'. The form on Fasthosts for the A name record only allows an IP to be entered - does it add the mydomain1.com/ onto the end itself? Thanks for any help given - I'm quite worried about this David

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• So are we ever getting the technological singularity

  - by jsoldi

  I´m still waiting for an AI robot that will pass the Turing test. I keep going back to http://www.a-i.com/ and nothing. I don´t know much about AI but, did anyone ever tried to make a genetic algorithm whose evolution algorithm itself evolves? Or how about one whose algorithm that makes the genetic algorithm evolve, evolves? Or one whose genetic algorithm that makes the genetic algorithm that makes the genetic algorithm evolve, evolves? Or how about an algorithm that abstracts all this into a potentially infinitely deep tree of genetic evolution algorithms? Aren´t we just failing as programmers? And I don´t think we can blame the processors speed. If you make and application that simulates consciousness you will get a Nobel prize no matter how many hours it takes to respond to your questions. But nobody did it. It almost reminds me to Randi´s $1000000 paranormal challenge. As I keep going back to AI chat bots, they keep getting better at changing the subject on a way that seems natural. But if I tell them something like "if 'x' is 2 then whats two times 'x'?" then they don't have a clue what I'm talking about. And I don't think they need a whole human brain simulation to be able to answer to something like that. They don't need feelings or perception. This is just language and logics. I don't think my perception of the color red gives me the ability to understand that if 'x' is 2 then two times 'x' is 4. I'm sure we are just missing some elemental principle we cannot grasp because it's probably stuck behind our eyes. What do you think?

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• Dalvik + Java licensing question

  - by Andrew Bate

  This is a licensing question about the Dalvik and J2SE core libraries. In particular the license governing java.util.concurrent.SynchronousQueue. The license header of the class in the JDK source states that it is GPLv2 only (see grepcode). However, the same file in the Dalvik core libraries seems to be governed by the Apache 2 license only (see android source). How is this possible? I didn't think you could take GPLv2 source and re-license it as Apache 2. (It's obvious they did: a comment above the Java Doc even says "removed link to collections framework docs"!) I'm asking because I have a GPLv3 project and would like to include a derivative work of some source from the core libraries (either Dalvik or J2SE) but publish it under GPLv3. I thought I could do this with Apache 2, but not GPLv2. I know that the J2SE class source is itself derivative work from public domain source, but the changes from the original are substantial. (The original is available at gee.cs.oswego.edu if you are interested.) Therefore the android source really is just a copy of the J2SE source, but published under Apache 2 instead of GPLv2. Is Google really allowed to do this?

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• File format for animated scene

  - by stephelton

  I've got a custom OpenGL based rendering engine and I'd like to add support for cinema-type scene animation. The artist that is helping me uses primarily 3DSMax. I'd like a file format for exporting and importing this data. I'm also in need of a file format for skeletal animation data, which may have an impact here. I've been looking at MAXScript to manually export this stuff, which would buy me the most flexibility, but I have virtually no experience with 3DSMax itself, so I get a little lost when it comes to terminology. So I'd like to know what file formats exist for animated scene data, and whether they are appropriate for my use (my fear is that they will be way too broad for my fairly simple needs.) The way I view animated scene data is basically a bunch of references to [animated] models with keyframe-based matrices describing their orientation over time. And probably some special camera stuff to handle perspective. I might also want some event type stuff for adding/removing objects. Is this a sane concept?

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• RANT: SkyDrive &amp; Mesh

  - by Sahil Malik

  SharePoint 2010 Training: more information Fellow citizens of the tech world, you’re watching a good Samaritan die. Unfortunately this is not the first time, it won’t be the last. We have seen this before, sadly we will see it again. The IT industry, is a few sharks – Oracle, Apple, Google, and yes, Microsoft, and numerous small fishes around them. 10 years ago, you saw some innovating smart engineers create instant-messaging programs. There was rapid innovation and growth in that field even though internet itself was quite nascent. Remember ICQ? Well, then came around the sharks! They offered you free versions of IM programs that in the short run were actually superior. Yahoo messenger, MSN, AIM and then later on google.  Innovation in IM was pretty much stand still until a new contender like skype decided to marry IM with telephony. This prompted google to do the same. Of course, Skype was then purchased by Microsoft.  The situation still stands, lets take the example of Microsoft, it offers, Read full article ....

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• Using HTML5 Today part 2&ndash;Fixing Semantic tags with a Shiv

  - by Steve Albers

  Semantic elements and the Shiv! This is the second entry in the series of demos from the “Using HTML5 Today” talk. For the definitive discussion on unknown elements and the HTML5 Shiv check out Mark Pilgrim’s Dive Into HTML5 online book at http://diveintohtml5.info/semantics.html#unknown-elements Semantic tags increase the meaning and maintainability of your markup, help make your page more computer-readable, and can even provide opportunities for libraries that are written to automagically enhance content using standard tags like <nav>, <header>,  or <footer>. Legacy IE issues However, new HTML5 tags get mangled in IE browsers prior to version 9.  To see this in action, consider this bit of HTML code which includes the new <article> and <header> elements: Viewing this page using the IE9 developer tools (F12) we see that the browser correctly models the hierarchy of tags listed above: But if we switch to IE8 Browser Mode in developer tools things go bad: Did you know that a closing tag could close itself?? The browser loses the hierarchy & closes all of the new tags.  The new tags become unusable and the page structure falls apart. Additionally block-level elements lose their block status, appearing as inline.    The Fix (good) The block-level issue can be resolved by using CSS styling.  Below we set the article, header, and footer tags as block tags. article, header, footer {display:block;} You can avoid the unknown element issue by creating a version of the element in JavaScript before the actual HTML5 tag appears on the page: <script> document.createElement("article"); document.createElement("header"); document.createElement("footer"); </script> The Fix (better) Rather than adding your own JS you can take advantage of a standard JS library such as Remy Sharp’s HTML5 Shiv at http://code.google.com/p/html5shiv/.  By default the Modernizr library includes HTML5 Shiv, so you don’t need to include the shiv code separately if you are using Modernizr.

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