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• What's created this key combo?

  - by user73784

  I've recently upgraded my iMac to OSX Mavericks. I'm finding that when I press Control-Shift-N something is immediately locking my screen and making it dark. I can still hear my streaming audio playing, so I guess it's not logging me out. I've looked carefully through the list of keyboard shortcuts in System Preferences, and that key combo isn't mentioned anywhere. Is there any place I can get a list of all active keyboard shortcuts? Is there any terminal command I can run to see which application has taken over this keypress combination? It's really annoying because I habitually use that combo in PHPStorm! (And yes, I have checked the keymaps there too.)

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• Unable to install Ubuntu 12.04.1 on Virtualbox on Windows 7 Host

  - by arcube

  I would like to install Ubuntu 12.04.1 in a virtual box on windows 7 host however I get a black screen after selecting to install Ubuntu i.e. right after choosing English language I have tried the 32bit and 64bit version desktop version, have also read thru some guides e.g. http://www.psychocats.net/ubuntu/virtualbox but I could not find any solution to fix this problem. BTW I have Ubuntu installed using Virtual PC (not running at the same time), also I have mac OS (mountain lion) installed using Virtual Box so I do not think it is a problem with the virtual box or windows 7 host. My VM configuration is with 1 core and 1 GB of ram using 20GB VDI; rest is default config. My hardware is Core i7 3770k / Asus P8Z77-V Deluxe / GSkill 32GB which I believe should be more than sufficient to run another VM. I have moved my user profile from SSD to HDD via junction however IMHO it should not matter. Has anyone else come across this problem and found a solution? Any help/thoughts on how to solve this would be very much appreciated.

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• PGP Desktop Whole disk Encryption paused on a toshiba ultrabook z935

  - by garg

  I have a Toshiba z930 Ultrabook with PGP Desktop installed for whole disk encryption. It installed correctly, and started encrypting but it stays paused. If I reboot, it shows me the PGP desktop username, password, domain screen. If I enter in my credentials, it allows me to get into windows but encryption remains paused. If I click on resume, it lets me enter a password, accepts it but then it doesn't do anything. One suspicious thing is that in the 'Select disk or partition to encrypt' box, it says, C: 120B fixed disk. Unknown Bus: TOSHIBA THNSNS12... Do I need to change something in the BIOS, or install any drivers so that it doesn't see it as an Unknown Bus?

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• Ubuntu 10.4 Lucid Server Minimal Install: Slow terminal scrolling

  - by noname

  I have a minimal install of Ubuntu 10.4 Server for testing and learning purposes. There is a very annoying occurrance: whenever I try to "man dpkg" or any command that load a few screens length of text (eg. "ls -al") the redraw speed of the console is just way too slow. I can see how each new line causes the whole screen to redraw. Note: that this doesn't happen inside X. No gui is installed. I have been experimenting with adding vesafb to the grub line as some guides suggested, but no speedups happened. You might be able to reproduce this behaviour on your linux system by switching to terminal using CTRL+ALT+F1. Is there any way to speed scrolling up?

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• My first animation - Using SDL.NET C#

  - by Mark

  Hi all! I'm trying to animate a player object in my 2D grid when the user clicks somewhere in the screen. I got the following 4 variables: oX (Current player position X) oY (Current player position Y) dX (Destination X) dY (Destination Y) How can I make sure the player moves in a straight line to the new XY coordinates. The way I'm doing it now is really awfull and causes the player to first move along x axis, and finally in y axis. Can someone give me some guidance with the involved math cause I'm really not sure on how to accomplish this. Thank you for your time. Kind regards, Mark Update: It's working now but whats the right way to check if the current positions are equal to the target position? private static void MovePlayer(double x2, double y2, int duration) { double hX = x2 - m_PlayerPosition.X; double hY = y2 - m_PlayerPosition.Y; double Length = Math.Sqrt(Math.Pow(hX, 2) + Math.Pow(hY, 2)); hX = hX / Length; hY = hY / Length; while (m_PlayerPosition.X != Convert.ToInt32(x2) || m_PlayerPosition.Y != Convert.ToInt32(y2)) { m_PlayerPosition.X += Convert.ToInt32(hX * 1); m_PlayerPosition.Y += Convert.ToInt32(hY * 1); UpdatePlayerLocation(); } }

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• Remote login/access on windows

  - by acidzombie24

  Hi I was wondering what software I can use to access my and other machines remotely? I used ssh which is nice but i don't know how it would be like on windows. (I assume its the same idea but windows console instead of a bash terminal?) Windows has a lot of applications that require GUI/MouseClicks. Actually I don't know a single ssh or vpn command line installer not that i'm complaining (but is helpful if you can mention some). I haven't use a VPN, is this taking control of a users screen/session? Or is it another instance/session as if you logged in as a different user on that box? What solutions are at my disposal for windows? (7)

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• Second monitor not detected

  - by configurator

  Note: I've seen this question quite a lot, but in all the cases I could find with answers, the answer was either "I don't know" or "use nvidia-settings (which is irrelevant to me)." I'm using Intel Sandybridge Desktop graphics, with a P8H61-M LE motherboard. How do I get Ubuntu to detect my second monitor? Clicking "Detect Displays" here doesn't do anything. Here's some system info: $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) $ uname -a Linux clyde 3.5.0-13-generic #13-Ubuntu SMP Tue Aug 28 08:31:47 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux $ hardinfo [copied from the UI] -Display- Resolution : 1920x1080 pixels Vendor : The X.Org Foundation Version : 1.12.3 -Monitors- Monitor 0 : 1920x1080 pixels -Extensions- BIG-REQUESTS Composite DAMAGE DOUBLE-BUFFER DPMS DRI2 GLX Generic Event Extension MIT-SCREEN-SAVER MIT-SHM RANDR RECORD RENDER SECURITY SGI-GLX SHAPE SYNC X-Resource XC-MISC XFIXES XFree86-DGA XFree86-VidModeExtension XINERAMA XInputExtension XKEYBOARD XTEST XVideo -OpenGL- Vendor : Intel Open Source Technology Center Renderer : Mesa DRI Intel(R) Sandybridge Desktop Version : 3.0 Mesa 8.1-devel Direct Rendering : Yes I've tried upgrading everything from ppa:xorg-edgers/ppa and ppa:glasen/intel-driver. I've also installed various tools I've found in other threads (e.g. hardinfo) but they weren't really helpful to me as I don't know what to make of the data. How do I get Ubuntu to detect my second monitor?

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• How to stop Windows 7 from automatically connecting to unsecure wifi network

  - by Remi Despres-Smyth

  One of my neighbors has an unsecure wifi network called WLAN. At one point in the past, I accidentally connected to it, and disconnected immediately when I noticed. Now, when I open my laptop at home, it sometimes connects to the WLAN network first, before trying my (secured) home wifi network. The information I've found regarding this issue seems to suggest this network should have a profile on the "Manage wireless networks" screen - but it does not. How do I tell Windows 7 to never connect to networks with SSIDs called WLAN? Or to never connect to unsecured networks without confirming with me first?

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• Windows 7 does not recognize hdmi audio output

  - by user30038

  I recently upgraded to Windows 7 on a Dell 545 MT with audio/video output via nVidia 9800 GTX+ to a flat screen television. I have installed/uninstalled/reinstalled all the most recent drivers from nVidia & realtek, but the machine will not recognize the hdmi output as a sound device (as it did previously in Vista). I troubleshot the problem with Dell for over an hour and was then directed to their software specialists who want $130 to fix the issue! Can anyone offer some insights on this? I've searched nVidia and Windows 7 forums w/o success and would really like to get sound coming back through my tv speakers. Many Thanks.

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• Linux terminal - frozen update of input but can execute commands?

  - by Torxed

  How do i restart a shell session from within SSH when it looks something like this: anton@ubuntu:~$ c: command not found anton@ubuntu:~$ lib anton@ubuntu:~$ this is working, but its messed up anton@ubuntu:~$ I can execute commands, but as i input them nothing shows on the console, but as soon as i press enter the command executes and the output comes (without line-endings, as shown above) exec bash bash --login clear nothing really works, restarting the SSH session however works. Temporary solution is to start a screen session and every time the interface freezes you simply do Ctrl+a-c to start a new session and close the old one..

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• Metacity toggle fullscreen not working under Lucid; worked with Karmic.

  - by Andy

  Hi all, I'm working on a 11" screen, so I frequently want to use applications in fullscreen. I'm no expert on GNOME, but I remember doing a search a while back, and finding out about metacity, and how to use that to allow any window to be put in fullscreen. This worked great on Karmic, but it doesn't seem to be working under Lucid. Here's what I do. Run gconf-editor. Go to /apps/metacity/window_keybindings. Change toggle_fullscreen from disabled to <Control><Shift>F. Unfortunately it doesn't work. I know that I've got the right syntax because I can see other shortcuts and use them as a template. I have no idea what's wrong, and no idea how to move forwards/debug. Any suggestions much appreciated. TIA Andy

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• MySQL – Export the Resultset to CSV file

  - by Pinal Dave

  In SQL Server, you can use BCP command to export the result set to a csv file. In MySQL too, You can export data from a table or result set as a csv file in many methods. Here are two methods. Method 1 : Make use of Work Bench If you are using Work Bench as a querying tool, you can make use of it’s Export option in the result window. Run the following code in Work Bench SELECT db_names FROM mysql_testing; The result will be shown in the result windows. There is an option called “File”. Click on it and it will prompt you a window to save the result set (Screen shot attached to show how file option can be used). Choose the directory and type out the name of the file. Method 2 : Make use of OUTFILE command You can do the export using a query with OUTFILE command as shown below SELECT db_names FROM mysql_testing INTO OUTFILE 'C:/testing.csv' FIELDS ENCLOSED BY '"' TERMINATED BY ';' ESCAPED BY '"' LINES TERMINATED BY '\r\n'; After the execution of the above code, you can find a file named testing.csv in C drive of the server. Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: MySQL, PostADay, SQL, SQL Authority, SQL Query, SQL Tips and Tricks, T SQL Tagged: CSV

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• Should my dropdown of recently used items show items I no longer have access to

  - by Dan Hibbert

  We are implementing a client for our document management system. Part of this is the checkin screen where one of the fields a user chooses is the folder where the document should be checked into. In our original system, this was represented with a combobox where a user could hand type a folder path or select a path from a list of 5 folders they'd recently used for checking. It is possible that between the time they used the folder and the time they are doing the new checkin the user will no longer have access to the folder. At present, we still show the folder as an option and then, if the user chooses that folder, display an error message when the user submits the check in. We are thinking of removing these recently used folders the user doesn't have access to (we'll make a check when the form is instantiated) because why show an option if we know it will cause a failure (and another dialog message the user has to OK). However, an opposite opinion is that if we remove those folders, the users will think the system has "forgotten" their recent choices and will lose trust in what they are using. I'd like to get some opinions on the better user experience for this problem.

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• Configuration tools for multiple monitors for X / Linux

  - by richard

  I have Ubuntu 10.04 running gnome and two monitors. I am wondering if a can get a better multi-monitor configuration tool. The one I have, gnome-display-properties, has too many problems, including: When I swapped my monitors over, the narrower (external) one now on the left. There is a width calculation error, such that I have a virtual monitor the width of the wide-monitor on the narrow-monitor and part of the wide monitor. And a virtual narrow-monitor on the remainder of the wide-monitor. Also the visible mouse pointer does is not aligned with the active spot, an x offset of one monitor width. I would like, in approximate order of importance: nobugs. to be able to select which is primary monitor. to have multiple configurations. configurations to be automatically selected based on which monitors are attached. configurations to be cycled (reliably) when display mode key is pressed. when a display is deactivated, for windows to migrate to remaining monitors. option to not change display resolution when mirroring, but to use side/top blanking bars to pad out screen.

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• Minecraft in jdk 1.7.0_u2 x64

  - by Nela Drobná

  I have Ubuntu 11.10 64-bit and I installed JDK 1.7.0 update 2 x64 via webupd8 page. But currently I have problem with minecraft game. After downloading launcher from Minecraft.net and lauch the game by java -jar /home/zrebec/Downloads/minecraft.jar launcehr is launched normaly, after login the game download the updates but then I got just the black screen with this in terminal: Setting user: zrebec, -356009615199623309 Exception in thread "Minecraft main thread" java.lang.UnsatisfiedLinkError: /home/zrebec/.minecraft/bin/natives/liblwjgl.so: /home/zrebec/.minecraft/bin/natives/liblwjgl.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch) at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1928) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1825) at java.lang.Runtime.load0(Runtime.java:792) at java.lang.System.load(System.java:1059) at org.lwjgl.Sys$1.run(Sys.java:69) at java.security.AccessController.doPrivileged(Native Method) at org.lwjgl.Sys.doLoadLibrary(Sys.java:65) at org.lwjgl.Sys.loadLibrary(Sys.java:81) at org.lwjgl.Sys.<clinit>(Sys.java:98) at org.lwjgl.opengl.Display.<clinit>(Display.java:132) at net.minecraft.client.Minecraft.a(SourceFile:180) at net.minecraft.client.Minecraft.run(SourceFile:648) at java.lang.Thread.run(Thread.java:722) Please anyone can help me with this? I think that problem will be in architecture becase: liblwjgl.so: /home/zrebec/.minecraft/bin/natives/liblwjgl.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch) Any idea please? I know, maybe this one is off topic because maybe its not Ubuntu problem maybe but in 64-bit works all perfectly and I think that accepted answer can help to many users and can make better playing games under linux. Really. Thank you very much for any idea.

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• Directly paste clipboard image into gmail message

  - by Frank Meulenaar

  I would like to be able to directly paste my clipboard image into a Gmail message. I could then just do alt-print screen, go to Gmail compose and press ctrl-v to embed a screenshot, for instance. I'm not talking about embedding a image from disk into my email; that's easily done. I want to skip the step where I have to save it to disk first. Eudora/Thunderbird support this. There's a program that does this, it's at picturepaste.com, but it's paid (and and the website uses Javascript for no obvious reasons). You can see the demo movie there if it's not clear what I would like. I would like to find a free alternative, or make one myself, but I have no clue how picturepaste works.

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• RGB? CMYK? Alpha? What Are Image Channels and What Do They Mean?

  - by Eric Z Goodnight

  They’re there, lurking in your image files. But have you ever wondered what are image channels are? And what do they have to do with RGB and CMYK? Here’s the answer. The channels panel in Photoshop is one of the most disused and misunderstood parts of the program. But images have color channels with or without Photoshop. Read on to find out what color channels are, what RGB and CMYK are, and learn a little bit more about how image files work Latest Features How-To Geek ETC How to Recover that Photo, Picture or File You Deleted Accidentally How To Colorize Black and White Vintage Photographs in Photoshop How To Get SSH Command-Line Access to Windows 7 Using Cygwin The How-To Geek Video Guide to Using Windows 7 Speech Recognition How To Create Your Own Custom ASCII Art from Any Image How To Process Camera Raw Without Paying for Adobe Photoshop What is the Internet? From the Today Show January 1994 [Historical Video] Take Screenshots and Edit Them in Chrome and Iron Using Aviary Screen Capture Run Android 3.0 on a Hacked Nook Google Art Project Takes You Inside World Famous Museums Emerald Waves and Moody Skies Wallpaper Change Your MAC Address to Avoid Free Internet Restrictions

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• How to get Firefox Greasemonkey script to use a local cascading stylesheet?

  - by Umber Ferrule

  What's the correct syntax to link to a CSS file in the same directory as a Greasemonkey JavaScript? I've tried the following but it doesn't work: var cssNode = document.createElement('link'); cssNode.type = 'text/css'; cssNode.rel = 'stylesheet'; cssNode.href = 'example.css'; cssNode.media = 'screen'; cssNode.title = 'dynamicLoadedSheet'; document.getElementsByTagName("head")[0].appendChild(cssNode); If I can get this to work, it would be a lot easier than encasing CSS changes in JavaScript.

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• Weird problem, special characters coming after formatting the hard drive, computer isn't starting 0_

  - by m3taspl0it

  Hya friends , Last night my computer was working fine. But today when i came back from college and started it , it was starting fine but after sometime it's getting restarted , again and again getting restarted at different points , so i tried to boot it in safe mode but same problem. Now after all this , i finally decided to format the drive C (it is in 80 GB) and load new OS windows XP3. After formatting (quick format) and loading xp3 sufficient files , when it was getting rebooted for copying the actual os files , it hung and a weird screen came. I've also attached the pic of error : http://www.postimage.org/image.php?v=gxz1vKS My specs : P4 3.0 Ghz 2 GB RAM (2x 512 mb and 1 GB) 3 hard drives { 80 GB (5 years old around) 320 GB ( 2 years old around) 500 GB ( recently bought) 256 MB graphics card any help is very appreciated , thanks

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• Input devices stopped working during system upgrade

  - by amorfis

  Hi, I was upgrading Ubuntu on my server (but Ubuntu is in desktop version) when mouse and keyboard stopped working :( So the screen went black (screensaver), and now I can't do anything. I don't know what stage of upgrade it stopped working, probably now it waits for me to answer some question. Keyboard and mouse were connected by KVM, connecting them directly doesn't help. Both are on USB. What I can do, is connecting to the machine by ssh. Can I somehow see and answer questions of update system and somehow finalize process of upgrade?

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• Solving Big Problems with Oracle R Enterprise, Part II

  - by dbayard

  Part II – Solving Big Problems with Oracle R Enterprise In the first post in this series (see https://blogs.oracle.com/R/entry/solving_big_problems_with_oracle), we showed how you can use R to perform historical rate of return calculations against investment data sourced from a spreadsheet.  We demonstrated the calculations against sample data for a small set of accounts.  While this worked fine, in the real-world the problem is much bigger because the amount of data is much bigger.  So much bigger that our approach in the previous post won’t scale to meet the real-world needs. From our previous post, here are the challenges we need to conquer: The actual data that needs to be used lives in a database, not in a spreadsheet The actual data is much, much bigger- too big to fit into the normal R memory space and too big to want to move across the network The overall process needs to run fast- much faster than a single processor The actual data needs to be kept secured- another reason to not want to move it from the database and across the network And the process of calculating the IRR needs to be integrated together with other database ETL activities, so that IRR’s can be calculated as part of the data warehouse refresh processes In this post, we will show how we moved from sample data environment to working with full-scale data.  This post is based on actual work we did for a financial services customer during a recent proof-of-concept. Getting started with the Database At this point, we have some sample data and our IRR function.  We were at a similar point in our customer proof-of-concept exercise- we had sample data but we did not have the full customer data yet.  So our database was empty.  But, this was easily rectified by leveraging the transparency features of Oracle R Enterprise (see https://blogs.oracle.com/R/entry/analyzing_big_data_using_the).  The following code shows how we took our sample data SimpleMWRRData and easily turned it into a new Oracle database table called IRR_DATA via ore.create().  The code also shows how we can access the database table IRR_DATA as if it was a normal R data.frame named IRR_DATA. If we go to sql*plus, we can also check out our new IRR_DATA table: At this point, we now have our sample data loaded in the database as a normal Oracle table called IRR_DATA.  So, we now proceeded to test our R function working with database data. As our first test, we retrieved the data from a single account from the IRR_DATA table, pull it into local R memory, then call our IRR function.  This worked.  No SQL coding required! Going from Crawling to Walking Now that we have shown using our R code with database-resident data for a single account, we wanted to experiment with doing this for multiple accounts.  In other words, we wanted to implement the split-apply-combine technique we discussed in our first post in this series.  Fortunately, Oracle R Enterprise provides a very scalable way to do this with a function called ore.groupApply().  You can read more about ore.groupApply() here: https://blogs.oracle.com/R/entry/analyzing_big_data_using_the1 Here is an example of how we ask ORE to take our IRR_DATA table in the database, split it by the ACCOUNT column, apply a function that calls our SimpleMWRR() calculation, and then combine the results. (If you are following along at home, be sure to have installed our myIRR package on your database server via  “R CMD INSTALL myIRR”). The interesting thing about ore.groupApply is that the calculation is not actually performed in my desktop R environment from which I am running.  What actually happens is that ore.groupApply uses the Oracle database to perform the work.  And the Oracle database is what actually splits the IRR_DATA table by ACCOUNT.  Then the Oracle database takes the data for each account and sends it to an embedded R engine running on the database server to apply our R function.  Then the Oracle database combines all the individual results from the calls to the R function. This is significant because now the embedded R engine only needs to deal with the data for a single account at a time.  Regardless of whether we have 20 accounts or 1 million accounts or more, the R engine that performs the calculation does not care.  Given that normal R has a finite amount of memory to hold data, the ore.groupApply approach overcomes the R memory scalability problem since we only need to fit the data from a single account in R memory (not all of the data for all of the accounts). Additionally, the IRR_DATA does not need to be sent from the database to my desktop R program.  Even though I am invoking ore.groupApply from my desktop R program, because the actual SimpleMWRR calculation is run by the embedded R engine on the database server, the IRR_DATA does not need to leave the database server- this is both a performance benefit because network transmission of large amounts of data take time and a security benefit because it is harder to protect private data once you start shipping around your intranet. Another benefit, which we will discuss in a few paragraphs, is the ability to leverage Oracle database parallelism to run these calculations for dozens of accounts at once. From Walking to Running ore.groupApply is rather nice, but it still has the drawback that I run this from a desktop R instance.  This is not ideal for integrating into typical operational processes like nightly data warehouse refreshes or monthly statement generation.  But, this is not an issue for ORE.  Oracle R Enterprise lets us run this from the database using regular SQL, which is easily integrated into standard operations.  That is extremely exciting and the way we actually did these calculations in the customer proof. As part of Oracle R Enterprise, it provides a SQL equivalent to ore.groupApply which it refers to as “rqGroupEval”.  To use rqGroupEval via SQL, there is a bit of simple setup needed.  Basically, the Oracle Database needs to know the structure of the input table and the grouping column, which we are able to define using the database’s pipeline table function mechanisms. Here is the setup script: At this point, our initial setup of rqGroupEval is done for the IRR_DATA table.  The next step is to define our R function to the database.  We do that via a call to ORE’s rqScriptCreate. Now we can test it.  The SQL you use to run rqGroupEval uses the Oracle database pipeline table function syntax.  The first argument to irr_dataGroupEval is a cursor defining our input.  You can add additional where clauses and subqueries to this cursor as appropriate.  The second argument is any additional inputs to the R function.  The third argument is the text of a dummy select statement.  The dummy select statement is used by the database to identify the columns and datatypes to expect the R function to return.  The fourth argument is the column of the input table to split/group by.  The final argument is the name of the R function as you defined it when you called rqScriptCreate(). The Real-World Results In our real customer proof-of-concept, we had more sophisticated calculation requirements than shown in this simplified blog example.  For instance, we had to perform the rate of return calculations for 5 separate time periods, so the R code was enhanced to do so.  In addition, some accounts needed a time-weighted rate of return to be calculated, so we extended our approach and added an R function to do that.  And finally, there were also a few more real-world data irregularities that we needed to account for, so we added logic to our R functions to deal with those exceptions.  For the full-scale customer test, we loaded the customer data onto a Half-Rack Exadata X2-2 Database Machine.  As our half-rack had 48 physical cores (and 96 threads if you consider hyperthreading), we wanted to take advantage of that CPU horsepower to speed up our calculations.  To do so with ORE, it is as simple as leveraging the Oracle Database Parallel Query features.  Let’s look at the SQL used in the customer proof: Notice that we use a parallel hint on the cursor that is the input to our rqGroupEval function.  That is all we need to do to enable Oracle to use parallel R engines. Here are a few screenshots of what this SQL looked like in the Real-Time SQL Monitor when we ran this during the proof of concept (hint: you might need to right-click on these images to be able to view the images full-screen to see the entire image): From the above, you can notice a few things (numbers 1 thru 5 below correspond with highlighted numbers on the images above.  You may need to right click on the above images and view the images full-screen to see the entire image): The SQL completed in 110 seconds (1.8minutes) We calculated rate of returns for 5 time periods for each of 911k accounts (the number of actual rows returned by the IRRSTAGEGROUPEVAL operation) We accessed 103m rows of detailed cash flow/market value data (the number of actual rows returned by the IRR_STAGE2 operation) We ran with 72 degrees of parallelism spread across 4 database servers Most of our 110seconds was spent in the “External Procedure call” event On average, we performed 8,200 executions of our R function per second (110s/911k accounts) On average, each execution was passed 110 rows of data (103m detail rows/911k accounts) On average, we did 41,000 single time period rate of return calculations per second (each of the 8,200 executions of our R function did rate of return calculations for 5 time periods) On average, we processed over 900,000 rows of database data in R per second (103m detail rows/110s) R + Oracle R Enterprise: Best of R + Best of Oracle Database This blog post series started by describing a real customer problem: how to perform a lot of calculations on a lot of data in a short period of time.  While standard R proved to be a very good fit for writing the necessary calculations, the challenge of working with a lot of data in a short period of time remained. This blog post series showed how Oracle R Enterprise enables R to be used in conjunction with the Oracle Database to overcome the data volume and performance issues (as well as simplifying the operations and security issues).  It also showed that we could calculate 5 time periods of rate of returns for almost a million individual accounts in less than 2 minutes. In a future post, we will take the same R function and show how Oracle R Connector for Hadoop can be used in the Hadoop world.  In that next post, instead of having our data in an Oracle database, our data will live in Hadoop and we will how to use the Oracle R Connector for Hadoop and other Oracle Big Data Connectors to move data between Hadoop, R, and the Oracle Database easily.

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• Insurance Outlook: Just Right of Center

  - by Chuck Johnston Admin

  On Tuesday June 21st, PwC lead a session at the International Insurance Society meeting in Toronto focused on the opportunity in insurance.  The scenarios focusing on globalization, regulation and new areas of insurance opportunity were well defined and thought provoking, but the most interesting part of the session was the audience participation. PwC used a favorite strategic planning tool of mine, scenario planning, to highlight the important financial, political, social and technological dimensions that impact the insurance industry. Using wireless polling keypads, the audience was able to participate in scoring a range of possibilities across each dimension using a 1 to 5 ranking; 1 being generally negative or highly pessimistic scenarios and 5 being very positive or more confident scenarios. The results were then displayed on a screen with a line or "center" in the middle. "Left of center" was defined as being highly cautious and conservative, while "right of center" was defined as a more optimistic outlook for the industry's future. This session was attended by insurance carriers' senior leadership, leading insurance academics, senior regulators, and the occasional insurance technology executive. In general, the average answer fell just right of center, i.e. a little more positive or optimistic than center. Three years ago, after the 2008 financial crisis, I suspect the answers would have skewed more sharply to the left of center. This sense that things are generally getting better for insurers and that there is the potential for positive change pervaded the conference. There is still caution and concern around economic factors, regulation (especially the potential pitfalls of regulatory convergence with banking) and talent management, but in general, the industry outlook is more positive than it's been in several years. Chuck Johnston is vice president of industry strategy, Oracle Insurance. 

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• Mouse button and keypress counter for Linux?

  - by rakete

  I would like to have some kind of statistic of my daily mouse/keyboard usage to help me make my keyboard layout a little bit more efficient. There is already an question about how to do this on windows, but I would like to know I anyone is aware if this is possible under linux. Another thing I already found is key-mon, a little program for screencasts that displays your mouse and keyboard presses on the screen, which would help me achieve what I want with a little bit of python coding by myself. But still, if there was an solution already, that would be easier of course. PS: obfuscated link to key-mon because of spam prevention: hxxp://code.google.com/p/key-mon/

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• CodePlex Daily Summary for Saturday, November 26, 2011

  CodePlex Daily Summary for Saturday, November 26, 2011Popular ReleasesTerminals: Version 2 - Beta 4 Release: Beta 4 Refresh Build Dont forget to backup your config files BEFORE upgrading! As usual, please take time to use and abuse this release. We left logging in place, and this is a debug build so be sure to submit your logs on each bug reported, and please do report all bugs! Updated the About form to include the date and time of the build. Useful for CI builds to ensure we have the correct version "Favourites" and "History" save their expanded states after app restarts Code cleanup, secu...MiniTwitter: 1.76: MiniTwitter 1.76 ???? ?? ?????????? User Streams ???????????? User Streams ???????????、??????????????? REST ?????????? ?????????????????????????????? ??????????????????????????????Media Companion: MC 3.424b Weekly: Ensure .NET 4.0 Full Framework is installed. (Available from http://www.microsoft.com/download/en/details.aspx?id=17718) Ensure the NFO ID fix is applied when transitioning from versions prior to 3.416b. (Details here) Movie Show Resolutions... Resolved issue when reverting multiselection of movies to "-none-" Added movie rename support for subtitle files '.srt' & '.sub' Finalised code for '-1' fix - radiobutton to choose either filename or title Fixed issue with Movie Batch Wizard Fanart - ...Advanced Windows Phone Enginering Tool: WPE Downloads: This version of WPE gives you basic updating, restoring, and, erasing for your Windows Phone device.ASP.NET Comet Ajax Library (Reverse Ajax - Server Push): ASP.NET Reverse Ajax Samples: Chat, MVC Razor, DesktopClient, Reverse Ajax for VB.NET and C#Anno 2070 Assistant: Beta v1.0 (STABLE): Anno 2070 Assistant Beta v1.0 Released! Features Included: Complete Building Layouts for Ecos, Tycoons & Techs Complete Production Chains for Ecos, Tycoons & Techs Completed Credits Screen Known Issues: Not all production chains and building layouts may be on the lists because they have not yet been discovered. However, data is still 99.9% complete. Currently the Supply & Demand, including Calculator screen are disabled until version 1.1.Oil Prices: Oil Prices V1.1: Oil Prices V1.1 Fix Bangchak price listTAXILISM: TAXILISM V1.0: TAXILISMExamine: v1.4 - Beta: A fairly mega release which borrows some behaviors from the currently under development v2.0 version, this means there are some breaking changes which are listed below, though I don't think these breaking changes will affect many. FeaturesUpgraded DLLs to .Net 4.0 runtime Azure support No more file queue, all asynchronous operations are handled by .Net 4.0's async Task scheduling system, this not only increases performance but better handles async operations. Running in async mode will...Minemapper: Minemapper v0.1.7: Including updated Minecraft Biome Extractor and mcmap to support the new Minecraft 1.0.0 release (new block types, etc).Metro Pandora: Metro Pandora SDK V1: Metro Pandora aims to ship a Pandora SDK and apps for XAML .net platforms. For more information on this release please see Metro Pandora SDK Introduction. Supported platforms in V1: Windows Phone 7 / Silverlight Windows 8 .Net 4.0, WPF, WinformsVisual Leak Detector for Visual C++ 2008/2010: v2.2.1: Enhancements: * strdup and _wcsdup functions support added. * Preliminary support for VS 11 added. Bugs Fixed: * Low performance after upgrading from VLD v2.1. * Memory leaks with static linking fixed (disabled calloc support). * Runtime error R6002 fixed because of wrong memory dump format. * version.h fixed in installer. * Some PVS studio warning fixed.NetSqlAzMan - .NET SQL Authorization Manager: 3.6.0.10: 3.6.0.10 22-Nov-2011 Update: Removed PreEmptive Platform integration (PreEmptive analytics) Removed all PreEmptive attributes Removed PreEmptive.dll assembly references from all projects Added first support to ADAM/AD LDS Thanks to PatBea. Work Item 9775: http://netsqlazman.codeplex.com/workitem/9775VideoLan DotNet for WinForm, WPF & Silverlight 5: VideoLan DotNet for WinForm, WPF, SL5 - 2011.11.22: The new version contains Silverlight 5 library: Vlc.DotNet.Silverlight. A sample could be tested here The new version add and correct many features : Correction : Reinitialize some variables Deprecate : Logging API, since VLC 1.2 (08/20/2011) Add subitem in LocationMedia (for Youtube videos, ...) Update Wpf sample to use Youtube videos Many others correctionsSharePoint 2010 FBA Pack: SharePoint 2010 FBA Pack 1.2.0: Web parts are now fully customizable via html templates (Issue #323) FBA Pack is now completely localizable using resource files. Thank you David Chen for submitting the code as well as Chinese translations of the FBA Pack! The membership request web part now gives the option of having the user enter the password and removing the captcha (Issue # 447) The FBA Pack will now work in a zone that does not have FBA enabled (Another zone must have FBA enabled, and the zone must contain the me...SharePoint 2010 Education Demo Project: Release SharePoint SP1 for Education Solutions: This release includes updates to the Content Packs for SharePoint SP1. All Content Packs have been updated to install successfully under SharePoint SP1SQL Monitor - managing sql server performance: SQLMon 4.1 alpha 6: 1. improved support for schema 2. added find reference when right click on object list 3. added object rename supportBugNET Issue Tracker: BugNET 0.9.126: First stable release of version 0.9. Upgrades from 0.8 are fully supported and upgrades to future releases will also be supported. This release is now compiled against the .NET 4.0 framework and is a requirement. Because of this the web.config has significantly changed. After upgrading, you will need to configure the authentication settings for user registration and anonymous access again. Please see our installation / upgrade instructions for more details: http://wiki.bugnetproject.c...Free SharePoint 2010 Sites Templates: SharePoint Server 2010 Sites Templates: here is the list of sites templates to be downloadedVsTortoise - a TortoiseSVN add-in for Microsoft Visual Studio: VsTortoise Build 30 Beta: Note: This release does not work with custom VsTortoise toolbars. These get removed every time when you shutdown Visual Studio. (#7940) Build 30 (beta)New: Support for TortoiseSVN 1.7 added. (the download contains both setups, for TortoiseSVN 1.6 and 1.7) New: OpenModifiedDocumentDialog displays conflicted files now. New: OpenModifiedDocument allows to group items by changelist now. Fix: OpenModifiedDocumentDialog caused Visual Studio 2010 to freeze sometimes. Fix: The installer didn...New Projects1Internet: Branch of 1Intranet.ANX.Framework: The ANX.Framework is a platform independent game framework which is compatible with Microsofts XNA Framework.CBMMark: Commodore 8-bit benchmarking suitecodeplanner: A nuget package that will help you with architecture and generate code from T4 templates. 1. Create a new MVC3 (C#) Project 2. Install-Package codeplanner 3. Create your domainmodel (see documentation or readme.txt) 4. Create system by -> Scaffold CodePlanner.ScaffoldAllCommonLib: ???? C#????CoverFlow Project: This is a proyect that can we use like a control for own apps , its need some improvements like differents view and also some memory issue to get fix... if anyone can help me to improve please... NOTE: This coverflow reads bytes and then convert it to images thanks Dev.Net: The project aims creating development help pages, where user can find useful information about each referenced assembly. It also have an in-place editor for each page section and a versioning system to work with previously modified pages.EasyFramework: ?.net framework?????，???????????EPioneerCenter: Project Name：EPioneer Programming Language：C#ErSE253: General application for geostatistics estimations. Entirely written in C# designed to be readable and perform efficient calculations.FontysIsa2: FontysIsa2Kaos: Klinik Administrations og Oversigts SystemKinect Cursor Move: Kinect Cursor Move is a library that uses the Kinect for Windows SDK and its skeletal tracking features to allow a user to use their hands to control the Windows mouse cursor. The project is developped in / for c# only ...Mitutoyo 264-007 RS232 SPC Data Input Tool: This tool allows measurements to be recorded from Mitutoyo SPC measurement tools using the Mitutoyo RS232 Data Input Tool (part#: 264-007) by emulating a keyboard. It has many configurable options. It's developed in C#.NAU Airplane speech engine: Generates speech for airplain simulator, based on networking eventsProASPNETMVCInvest: This is the source code example for the book: <<Pro ASP.NET MVC2 Framework>>School Helper: Keep track of grades and upcoming assignments.Sheva engine 2: XNA game engineSimple Job Management: Simple job management solution created to handle less complicated jobs not tied to a larger scale project.StoreOnline: the latest versionVectorlib: A Library.WP7 toolkit by MSP: Some controls and utilites are made by MSP??????Judge Online: ??????Judge Online????????????。??????????????（?C、C++）???，?????????????，????????????????????????。???????????，???SNS????????。

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• Styles of games that work at low-resolution

  - by Brendan Long

  I'm taking a class on compilers, and the goal is to write a compiler for Meggy Jr devices (Arduino). The goal is just to make a simple compilers with loops and variables and stuff. Obviously, that's lame, so the "real goal" is to make an impressive game on the device. The problem is that it only has 64 pixels to work with (technically 72, but the top 8 are single-color and not part of the main display, so they're really only useful for displaying things like money). My problem is thinking of something to do on a device that small. It doesn't really matter if it's original, but it can't be something that's already available. My first idea was "snake", but that comes with the SDK. Same with a side-scrolling shooter. Remaining ideas include a tower defense game (hard to write, hard to control), an RPG (same), tetris (lame).. The problem is that all of the games I like require a high-resolution screen because they have a lot of text. Even a really simple game like nethack would be hard because each creature would be a single color. tl;dr What styles of games require a. No text; and b. Few enough objects that representing them each with a single color is acceptable? EDIT: To clarify, the display is 8x8 for a total of 64 pixels, not 64x64.

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