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• Which K-factor should be used in case players have different K-factor values

  - by DmitryN

  I am implementing a ranking system based on the Elo rating and cannot get a point about the K-factor. If two players with different skills and, therefore, different K-factors are playing, which exactly K-factor should be used when changing their ratings? For example, player A has rating 2500 and K-factor 16 (probability ~75%) while player B has rating 2300 and K-factor 24 (probability ~25%). If player A wins, do I need to use 16 as K-factor for both players or 16 for player A and 24 for player B?

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• How to suppress PHPSESSID in URL for Googlebot?

  - by Roque Santa Cruz

  I use cookie based sessions, and they work for normal interaction with our site. However, when Googlebot comes crawling out PHP framework, Yii, needs to append ?PHPSESSID to each URL, which doesn't look that good in SERP. Any ways to suppress this behavior? PS. I tried to utilize ini_set('session.use_only_cookies', '1');, but it does not work. PPS. To get an impression of the SERP, they look like this: http://www.google.com/search?q=site:wwwdup.uni-leipzig.de+inurl:jobportal

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• A Brother MFC 7840w Printer Is A Good Companion To Any Desktop Computer

  Whether you run a small home based business or the kids just do their homework on it, a home computer needs a good printer attached to it. The Brother MFC 7840W printer not only produces high quality... [Author: Ben Pate - Computers and Internet - March 25, 2010]

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• SQL File Layout Viewer 1.2

  - by merrillaldrich

  Just ahead of presenting it at SQL Saturday in my home town of Minneapolis / Saint Paul, I’m happy to release an updated version of the SQL Server File Layout Viewer. This is a utility I released back in March for inspecting the arrangement of data pages in SQL Server files. If you will be in Minneapolis this Saturday (space permitting), please come out and see this tool in action! New Features Based on feedback from others in the SQL Server community, I made these enhancements: Page types now provide...(read more)

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• Should I choose Doctrine 2 or Propel 1.5/1.6, and why?

  - by Billy ONeal

  I'd like to hear from those who have used Doctrine 2 (or later) and Propel 1.5 (or later). Most comparisons between these two object relational mappers are based on old versions -- Doctrine 1 versus Propel 1.3/1.4, and both ORMs went through significant redesigns in their recent revisions. For example, most of the criticism of Propel seems to center around the "ModelName Peer" classes, which are deprecated in 1.5 in any case. Here's what I've accumulated so far (And I've tried to make this list as balanced as possible...): Propel Pros Extremely IDE friendly, because actual code is generated, instead of relying on PHP magic methods. This means IDE features like code completion are actually helpful. Fast (In terms of database usage -- no runtime introspection is done on the database) Clean migration between schema versions (at least in the 1.6 beta) Can generate PHP 5.3 models (i.e. namespaces) Easy to chain a lot of things into a single database query with things like useXxx methods. (See the "code completion" video above) Cons Requires an extra build step, namely building the model classes. Generated code needs rebuilt whenever Propel version is changed, a setting is changed, or the schema changes. This might be unintuitive to some and custom methods applied to the model are lost. (I think?) Some useful features (i.e. version behavior, schema migrations) are in beta status. Doctrine Pros More popular Doctrine Query Language can express potentially more complicated relationships between data than easily possible with Propel's ActiveRecord strategy. Easier to add reusable behaviors when compared with Propel. DocBlock based commenting for building the schema is embedded in the actual PHP instead of a separate XML file. Uses PHP 5.3 Namespaces everywhere Cons Requires learning an entirely new programming language (Doctrine Query Language) Implemented in terms of "magic methods" in several places, making IDE autocomplete worthless. Requires database introspection and thus is slightly slower than Propel by default; caching can remove this but the caching adds considerable complexity. Fewer behaviors are included in the core codebase. Several features Propel provides out of the box (such as Nested Set) are available only through extensions. Freakin' HUGE :) This I have gleaned though only through reading the documentation available for both tools -- I've not actually built anything yet. I'd like to hear from those who have used both tools though, to share their experience on pros/cons of each library, and what their recommendation is at this point :)

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• Details on Oracle's Primavera P6 Reporting Database R2

  - by mark.kromer

  Below is a graphic screenshot of our detailed announcement for the new Oracle data warehouse product for Primavera P6 called P6 Reporting Database R2. This DW product includes the ETL, data warehouse star schemas and ODS that you'll need to build an enterprise reporting solution for your projects & portfolios. This product is included on a restricted license basis with the new Primavera P6 Analytics R1 product from Oracle because those Analytics are built in OBIEE based on this data warehouse product.

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• Rebuilt website from static html to CMS need to redirect indexed links

  - by Michael Dunn

  I have rebuilt a website which was all created with static html pages, it has now been rebuilt using a CMS system. I need to find a way of redirecting all the existing links to there new corresponding pages which utilise friendly URL rewrites on the CMS based website I imagine there will be several hundred if not 1000s as i have pages and images linked from google. What is the most efficient way to complete this Thanks in advance Mike

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• Manage Your WLAN from the Cloud

  Instead of organizations having to purchase, set up and maintain back-end servers, cloud-based WLAN management services offer hosted access that's cost effective and requires no installation.

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• Infinite detail inside Perlin noise procedural mapping

  - by Dave Jellison

  I am very new to game development but I was able to scour the internet to figure out Perlin noise enough to implement a very simple 2D tile infinite procedural world. Here's the question and it's more conceptual than code-based in answer, I think. I understand the concept of "I plug in (x, y) and get back from Perlin noise p" (I'll call it p). P will always be the same value for the same (x, y) (as long as the Perlin algorithm parameters haven't changed, like altering number of octaves, et cetera). What I want to do is be able to zoom into a square and be able to generate smaller squares inside of the already generated overhead tile of terrain. Let's say I have a jungle tile for overhead terrain but I want to zoom in and maybe see a small river tile that would only be a creek and not large enough to be a full "big tile" of water in the overhead. Of course, I want the same net effect as a Perlin equation inside a Perlin equation if that makes sense? (aka. I want two people playing the game with the same settings to get the same terrain and details every time). I can conceptually wrap my head around the large tile being based on an "zoomed out" coordinate leaving enough room to drill into but this approach doesn't make sense in my head (maybe I'm wrong). I'm guessing with this approach my overhead terrain would lose all of the cohesiveness delivered by the Perlin. Imagine I calculate (0, 0) as overhead tile 1 and then to the east of that I plug in (50, 0). OK, great, I now have 49 pixels of detail I could then "drill down" into. The issue I have in my head with this approach (without attempting it) is that there's no guarantee from my Perlin noise that (0,0) would be a good neighbor to (50,0) as they could have wildly different "elevations" or p/resultant values returning from the Perlin equation when I generate the overhead map. I think I can conceive of using the Perlin noise for the overhead tile to then reuse the p value as a seed for the "detail" level of noise once I zoom in. That would ensure my detail Perlin is always the same configuration for (0,0), (1,0), etc. ad nauseam but I'm not sure if there are better approaches out there or if this is a sound approach at all.

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• The iPad's Linux Competition

  <b>Cyber Cynic:</b> "But, the $499 price-tag give me pause, and I'm not crazy about Apple's locked-door policy towards developers and their iPad applications. That's why I've been looking forward to the other cheaper, more open, and Linux-based tablets."

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• Using RDFa with DITA and DocBook

  Learn how to add RDFa metadata to DITA and DocBook documents, how to keep those documents valid, and what advantages this technique can bring to a DITA- or DocBook-based publishing system.

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• SUSE Studio is powerful OS instance builder

  <b>IT World:</b> "Today, Novell's SUSE Studio is a Web-based virtual appliance/ISO image creator using SUSE Linux. It has no parallels that we can find for building operating systems instances."

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• Post Crosstalk 2012

  - by David Dorf

  This year the Oracle Retail users conference, Crosstalk, had a 20% increase in attendees, which was driven by both new customers and those acquired via Endeca.  As the product assets of Oracle have grown, so has the completeness of the solution set.  This year was marked by the breadth of omni-channel stories. Rose Spicer and her marketing team (see photo on left) always strive for an equal balance of retailer presentations, networking opportunities, and unique experiences -- this year was no exception.  We had 41 different retailers from China, Russia, South Africa, Brazil, Chile, US, Canada and the UK sharing their insights with one another. In all there were 251 executives from 120 iconic brands such as Daphne, Kohl's, Morrisons, Abercrombie & Fitch, Hot Topic, Talbots, Petco, Deckers, Sportmaster, Mr. Price, Falabella, and Disney to name a few. From a product perspective, there were a few new developments from Oracle Retail: Endeca's search engine has been integrated into the ATG commerce platform. The latest Retail Analytics application, Oracle Retail Customer Analytics, is generally available. Oracle Retail previewed a new fully-integrated mobile POS. But the real benefit of attending Crosstalk was hearing about the experiences of retailers and partners.  Here are are a few interesting facts I picked up: At Kohl's, the most popular website accessed by customers within their stores is Facebook.  With all the buzz about showrooming, I was really expecting it to be Amazon. Daphne, a Chinese shoe retailer, is opening 3 new stores per day.  Being located near the factories allows them to have a very agile supply chain as well. Disney Stores have increased sales by 25% at stores upgraded to include Mobile POS.  They continue to lead the pack with excellent customer experiences. Quicksilver reported that 1 in 5 visits to their website comes from a tablet.  More evidence that tablets are replacing traditional PCs in households. By tagging shoes with RFID, Saks is able to ensure all shoe models are on display.  If a model is not being displayed, it has no chance of being sold. Additionally, there were awards, store tours on Michigan Avenue, fireworks at Navy Pier, and the Oracle Retail house band, Bolo313, performing at Solider Field.  Speaking of which, a few retailers got on stage and jammed with band -- possible rival to Rock & Roll Retail? You can always find the latest info from us at the Retail Rack. The next events on tap are the Partner Summit followed by OpenWorld.

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• How does Minecraft compute lighting for it's non-block objects?

  - by Darestium

  I was wondering how the creator of Minecraft went about lighting the objects (player and pickaxe) based on the lighting level around the player. I have implemented the ability to light the blocks around the player but I can't really think of anyway to implement with objects. Also, when I the player moves and the lighting values change will I have to rebuild it's vertexbuffers? Or is there some other way? Any ideas?

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• Final Notes from the ODF Plugfest in Granada

  <b>Zona-M:</b> "A representative of the Spanish Ministry of Presidency, Miguel Angel Amutio Gomez, started the day explaining the crucial points of the Spanish law 11/2007: the right for everybody to use whatever digital technology they like best and the obligation for all Public Administrations to avoid discrimination of citizens based on their technological choices."

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• An XEvent a Day (30 of 31) – Tracking Session and Statement Level Waits

  - by Jonathan Kehayias

  While attending PASS Summit this year, I got the opportunity to hang out with Brent Ozar ( Blog | Twitter ) one afternoon while he did some work for Yanni Robel ( Blog | Twitter ).  After looking at the wait stats information, Brent pointed out some potential problem points, and based on that information I pulled up my code for my PASS session the next day on Wait Statistics and Extended Events and made some changes to one of the demo’s so that the Event Session only focused on those potentially...(read more)

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• Views from Abroad: XML Pipelines and Delta XML

  A U.K.-based company uses XML to replicate the advantages of a pipeline in handling complex datasets. It is a simple tool, useful for such tasks as Java regression testing and version control, but the few tricks it does, it does well, according to our columnist.

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• SharePoint 2010 Data Retrival Techinques

  - by Jayant Sharma

  In SharePoint, we have two options to perform CRUD operation.1. using server side code2. using client side codeusing server side code, we have 1. CAML2. LINQusing client side code, we have 1. Client Object Model    1.1.      Managed Client Object Model     1.2.     Silverlight Client Object Model    1.3.     ECMA Client Object Model2. SharePoint Web Services3. ADO Data Service (based on REST Web Services)4. Using RPC Call (owssvr.dll)Which and when these options are used depend upon requirements. Every options are certain advantages and disadvantages. So, before start development of any new sharepoint project, it is important to understand the limitations of different methods.Server Object Model is used when our application is host on the same server on which sharepoint is installed. while Client Side code is used to access sharepoint from client system. In SharePoint 2010 specially Client Object Model (COM) are introduced to perform the sharepoint operations from client system. Advantage of CAML:    -  It is fast.    -  Can be use it from all kind of technology like Silverlight, or Jquery    -  You can use U2U CAML Query builder to generate CAML Query.Disadvantage Of CAML:    - Error Prone, as we can detect the error only at runtimeAdvantage of LINQ:    -  Object Oriented technique (Object Relation Model)    -  LINQ  to SharePoint provider are working with Strongly Type List Item Objects, So intellisence are present at runtime    -  No need of knowledge of CAML    -  Less Error Prone as it as it uses C# syntex.    -  You can compare two Fields of SharePoint ListDisadvantage Of LINQ:    -  List Attachment is not supported in SPMetal Tool    -  Created By, Created, Modified and Modified By Fields are not created by SPMetal Tool.    -  Custom fields are not created by SPMetal Tools    -  External Lists are not supported    -  Though at backend LINQ genenates CAML Query so it is slower than directly using CAML in Code.  Advantage of Client Object Model    -  Used to access sharepoint from client system    -  No WebServer is required at Client End    - Can use Silverlight and JavaScripts to make better and fast User experienceDisadvantage of Client Object Model    -  You cannot use RunwithEleveatedPrivilege    - Cross Site Collection query are not possible    - Lesser API's are availableADO.Net Data Services:    -  Only List based operations are possible, other type of operations are not possible.SharePoint Web Services and RPC Call:    - Previously it was used in SharePoint 2007 but after the introduction  of Client Object Model,  Microsoft recommends not to use Web Services to fetch data from SharePoint. In SharePoint 2010 it is avaliable only for backward compatibility.Ref: http://msdn.microsoft.com/en-us/library/ee539764Jayant Sharma

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• First Ever MySQL on Windows Online Forum - March 16, 2011

  - by monica.kumar

  72 1024x768 Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Cambria","serif";} Now you might be thinking…what’s an Online Forum? Well, think of it as a virtual conference, where you can attend a series of presentations about a given topic, from the comfort of your own office/home. On Wednesday March 16th, from 9.00 am PT to 12.00, we will be running the first ever MySQL Online Forum, dedicated to MySQL on Windows. Register now to learn how you can reduce your database TCO on Windows by up to 90% while increasing manageability & flexibility!   Oracle’s MySQL Vice President of Engineering Tomas Ulin will kick off a comprehensive agenda of presentations enabling you to better understand:   How you can save up to 90% by using MySQL on WindowsWhy the world’s most popular open source database is extremely popular on Windows, both for enterprise users and for embedding by ISVs How MySQL is a great fit for the Windows environment, and what are the upcoming milestones to make MySQL even better on the Microsoft platform What are the visual tools at your disposal to effectively develop, deploy and manage MySQL applications on Windows How you can deliver highly available business critical Windows based MySQL applications Why Security Solutions Provider SonicWall selected MySQL over Microsoft SQL Server, and how they successfully deliver MySQL based solutions Plus, as we’ll have Live Chat On during the entire forum, you’ll be able to ask questions at any time to MySQL experts online. Register Now!   Whether you’re an ISV or an enterprise user, either already running MySQL on Windows or simply considering it, join us and learn how you can get performance, lower TCO and increased manageability & flexibility with MySQL on Windows!

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• Oracle Solaris at the OpenStack Summit in Atlanta

  - by Glynn Foster

  I had the fortune of attending my 2nd OpenStack summit in Atlanta a few weeks ago and it turned out to be a really excellent event. Oracle had many folks there this time around across a variety of different engineering teams - Oracle Solaris, Oracle ZFSSA, Oracle Linux, Oracle VM and more. Really great to see continuing momentum behind the project and we're very happy to be involved. Here's a list of the highlights that I had during the summit: The operators track was a really excellent addition, with a chance for users/administrators to voice their opinions based on experiences. Really good to hear how OpenStack is making businesses more agile, but also equally good to hear about some of the continuing frustrations they have (fortunately many of them are new and being addressed). Seeing this discussion morph into a "Win the enterprise" working group is also very pleasing. Enjoyed Troy Toman's keynote (Rackspace) about designing a planet scale cloud OS and the interoperability challenges ahead of us. I've been following some of the discussion around DefCore for a bit and while I have some concerns, I think it's mostly heading in the right direction. Certainly seems like there's a balance to strike to ensure that this effects the OpenStack vendors in such a way as to avoid negatively impacting our end users. Also enjoyed Toby Ford's keynote (AT&T) about his desire for a NVF (Network Function Virtualization) architecture. What really resonated was also his desire for OpenStack to start addressing the typical enterprise workload, being less like cattle and more like pets. The design summit was, as per usual, pretty intense for - definitely would get more value from these if I knew the code base a little better. Nevertheless, attended some really great sessions and got a better feeling of the roadmap for Juno. Markus Flierl gave a great presentation (see below) at the demo theatre for what we're doing with OpenStack on Oracle Solaris (and more widely at Oracle across different products). Based on the discussions that we had at the Oracle booth, there's a huge amount of interest there and we talked to some great customers during the week about their thoughts and directions in this respect. Undoubtedly Atlanta had some really good food. Highlights were the smoked ribs and brisket and the SweetWater brewing company. That said, I also loved the fried chicken, fried green tomatoes and collared greens, and wonderful hosting of "big momma" at Pitty Pat's Porch. Couldn't quite bring myself to eat biscuits and gravy in the morning though. Visiting the World of Coca-Cola just before flying out. A total brain washing exercise, but very enjoyable. And very much liked Beverly (contrary to many other opinions on the internet) - but then again, I'd happily drink tonic water every day of the year... Looking forward to Paris in November!

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• Oracle Magazine - Deriving and Sharing Business Intelligence Metadata

  - by David Allan

  There is a new Oracle Magazine article titled 'Deriving and Sharing Business Intelligence Metadata' from Oracle ACE director Mark Rittman in the July/August 2010 issue that illustrates the business definitions derived and shared across OWB 11gR2 and OBIEE: http://www.oracle.com/technology/oramag/oracle/10-jul/o40bi.html Thanks to Mark for the time producing this. As for OWB would be have been useful to have had the reverse engineering capabilities from OBIEE, interesting to have had code template based support for deployment of such business definitions and powerful to use these objects (logical folders etc.) in the mapping itself.

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• Latest Security Inside Out Newsletter Now Available

  - by Troy Kitch

  The September/October edition of the Security Inside Out Newsletter is now available. Learn about Oracle OpenWorld database security sessions, hands on labs, and demos you'll want to attend, as well as frequently asked question about Label-Based Access Controls in Oracle Database 11g. Subscriber here for the bi-monthly newsletter.  ...and if you haven't already done so, join Oracle Database on these social networks: Twitter Facebook LinkedIn Google+ 

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• Create Custom Playlists in Windows Media Player 12

  - by DigitalGeekery

  A playlist is a group of songs or media files that are grouped together based on a theme. Today we’ll look at how to create your own custom playlists in Windows Media Player 12. Create Custom Playlists Open Windows Media Player and switch to the Library view. Click on the Play tab at the top right to reveal the List pane.   If you currently have songs listed on the List pane, you can remove them by clicking Clear list.   To add songs to your playlist, right-click on the song title, select Add to, and then click Play list. You can also drag and drop the song title right onto the play list area. Hold down the Control [Ctrl] key while clicking to select more than one track at a time.   Changing the Playlist Order You can click and drag each item in your playlist to move it up or down.   You can also right click on the title and select Move up or Move down, or to completely remove a track from your playlist. You have the option to shuffle your list by clicking the Options list icon and selecting Shuffle list from the dropdown list. By selecting Sort list by you can sort by Title, Artist, Album, Release date, and more. Saving and naming your playlist To save your playlist, click on the Save list button. You’ll be prompted to enter a name for your playlist in the text box. Click away when you are finished. Windows Media Player will display your most recent playlists in the Navigation panel. Simply select the playlist anytime you want to listen to it.   Conclusion Custom playlists are a great way to group your music by themes such as mood, genre, activity, season, and more. If you are new to Windows Media Player 12, check out our post on managing your music in Windows Media Player. Similar Articles Productive Geek Tips Fixing When Windows Media Player Library Won’t Let You Add FilesShare Digital Media With Other Computers on a Home Network with Windows 7Install and Use the VLC Media Player on Ubuntu LinuxMake Windows Media Player Automatically Open in Mini Player ModeWhat are wmpnscfg.exe and wmpnetwk.exe and Why Are They Running? TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Acronis Online Backup DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows Easily Search Food Recipes With Recipe Chimp Tech Fanboys Field Guide Check these Awesome Chrome Add-ons iFixit Offers Gadget Repair Manuals Online Vista style sidebar for Windows 7 Create Nice Charts With These Web Based Tools

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• Oracle User Productivity Kit Translation

  - by ultan o'broin

  Oracle's customers just love the User Productivity Kit (UPK). I hear only great things about it from our international customers at the Oracle Usability Advisory Board meetings too. The UPK is the perfect solution for enterprise applications training needs (I previously reviewed a fine book about UPK btw). One question I am often asked is how source content created using the UPK can be translated into another language. I spoke with Peter Maravelias, Principal Product Strategy Manager for UPK about this recently. UPK is already optimized for easy source-target translation already. There is even a solution for re-recording demos. Here's what you can do to get your source content into another language: Use UPK's ability to automatically translate events and actions. UPK comes with XML templates that allow you to accomplish this in 21 languages with a simple publishing action switch. These templates even deal with the tricky business of using gender-based translations. Spanish localization template sample Japanese localization template sample Use the Import and Export localization features to export additional custom content in a format like XLIFF, easily handled by translation tools. You could also export and import in Word format. Re-record the sound (audio) files that go with the recordings, one per screen. UPK's granular approach to the sound files means that timing isn't an option. Retiming demos isn't required. A tip here with sound files and XLFF-exported custom content is to facilitate translation context by avoiding explicit references to actions going on in the screen recordings. A text based storyboard with screenshots accompanying the sound files should also be provided to the translators. Provide a glossary of terms too. Use the re-record option in UPK to record any demo from a translated application. This will allow all the translated UI labels to be automatically captured. You may be required to resize any action events here due to text expansion issues. Of course, you will need translated data in the translated application too, so plan for this in advance. However, source-target language skills aren't required for the re-recording. The UPK Player itself, of course, is also available from Oracle along with content and doc in 21 languages. The Developer and Setup is also translated in a smaller number of languages. Check the Oracle UPK website for latest details. UPK is a super solution for global enterprise applications training deployments allowing source content to be translated into multiple languages easily. See this post on the UPK blog for more insight too!

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• KineticD Merges Cloud Storage, Remote Access for SMBs

  The offsite data storage service, formerly Data Deposit Box, adds remote access to the desktop to its continuous backup service in a new cloud-based offering called KineticD.

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