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  • Purple Cows, Copernicus, and Shampoo – Lessons in Customer Experience

    - by Christina McKeon
    What makes a great customer experience? And, why should you or your organization care? These are the questions that set the stage for the Oracle Customer Experience Summit, which kicked off yesterday in San Francisco. Day 1: The first day was filled with demos and insights from customer experience experts and Oracle customers sharing what it takes to deliver great customer experiences. Author Seth Godin delivered an entertaining presentation that included an in-depth exploration of the always-connected, always-sharing experience revolution that we are witnessing and yes, talked about the purple cow. It turns out that customer experience is your way to be the purple cow. Before everyone headed out to see Pearl Jam and Kings of Leon at the Oracle customer appreciation event, the day wrapped up with a discussion around building a customer-centric culture. Where do you start? Whom does it involve? What are some pitfalls to avoid? Day 2: The second day addressed the details behind all the questions brought up at the end of Day 1. Before you start on a customer experience initiative, Paul Hagen noted that you must understand you will forge a path similar to Copernicus. You will be proposing ideas and approaches that challenge current thinking in your organization. Just as Copernicus' heliocentric theory started a scientific revolution, your customer-centric efforts will start an experience revolution. If you think customer experience is like a traditional marketing approach, think again. It’s not about controlling your customers and leading them where you want them to go. It might sound like heresy to some, but your customers are already in control, whether or not your company realizes and acknowledges it. And, to survive and thrive, you'll have to focus on customers by thinking outside-in and working towards a brand that is better and more authentic. We learned how Vail Resorts takes this customer-centric approach. Employees must experience the mountain themselves and understand the experience from the guest’s standpoint. This has created a culture where employees do things for guests that are not expected. We also learned a valuable lesson in designing and innovating customer-centered experiences from Kerry Bodine. First you make the thing, and then you make the thing right. In this case, the thing is customer experience. Getting customer experience right means iterative prototyping and testing of your ideas. This is where shampoo comes in—think lather, rinse, repeat. Be prepared to keep repeating until the customer experience is right. Many of these sessions will be posted to YouTube in the coming weeks so be sure to subscribe to our CX channel.

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  • June 23, 1983: First Successful Test of the Domain Name System [Geek History]

    - by Jason Fitzpatrick
    Nearly 30 years ago the first Domain Name System (DNS) was tested and it changed the way we interacted with the internet. Nearly impossible to remember number addresses became easy to remember names. Without DNS you’d be browsing a web where numbered addresses pointed to numbered addresses. Google, for example, would look like http://209.85.148.105/ in your browser window. That’s assuming, of course, that a numbers-based web every gained enough traction to be popular enough to spawn a search giant like Google. How did this shift occur and what did we have before DNS? From Wikipedia: The practice of using a name as a simpler, more memorable abstraction of a host’s numerical address on a network dates back to the ARPANET era. Before the DNS was invented in 1983, each computer on the network retrieved a file called HOSTS.TXT from a computer at SRI. The HOSTS.TXT file mapped names to numerical addresses. A hosts file still exists on most modern operating systems by default and generally contains a mapping of the IP address 127.0.0.1 to “localhost”. Many operating systems use name resolution logic that allows the administrator to configure selection priorities for available name resolution methods. The rapid growth of the network made a centrally maintained, hand-crafted HOSTS.TXT file unsustainable; it became necessary to implement a more scalable system capable of automatically disseminating the requisite information. At the request of Jon Postel, Paul Mockapetris invented the Domain Name System in 1983 and wrote the first implementation. The original specifications were published by the Internet Engineering Task Force in RFC 882 and RFC 883, which were superseded in November 1987 by RFC 1034 and RFC 1035.Several additional Request for Comments have proposed various extensions to the core DNS protocols. Over the years it has been refined but the core of the system is essentially the same. When you type “google.com” into your web browser a DNS server is used to resolve that host name to the IP address of 209.85.148.105–making the web human-friendly in the process. Domain Name System History [Wikipedia via Wired] What is a Histogram, and How Can I Use it to Improve My Photos?How To Easily Access Your Home Network From Anywhere With DDNSHow To Recover After Your Email Password Is Compromised

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  • TalkTalk Business Succeeds with Engaging Conversations on an Eloqua platform

    - by Richard Lefebvre
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 “Everybody from online, CRM and data, channel management, communications, and content had to pull together to deliver one campaign and Eloqua was the glue that held it all together.” says Paul Higgins, Marketing Director, TalkTalk Business (UK, telco) in this 2'23 video. Challenges Nurturing multiple sales channels with very diverse customers. Generating leads qualified to a very high standard. Engaging a fatigued and apathetic target audience. Positioning the brand as industry thought leaders. Solutions “What’s Your Business Grade?” campaign Eloqua automated email nurture strategy Eloqua Partner Network – Stein IAS Results ROI of 20:1. 40% uplift in sales opportunities in the smaller end with a 25% reduction in costs. 20–25% increase in sales qualified leads for mid-market, corporate, and enterprise customer sets. Open rate highs of 61.84% and click to open highs of 15.97%. /* 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:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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  • Alert: It is No Longer 1982, So Why is CRM Still There?

    - by Mike Stiles
    Hot off the heels of Oracle’s recent LinkedIn integration announcement and Oracle Marketing Cloud Interact 2014, the Oracle Social Cloud is preparing for another big event, the CRM Evolution conference and exhibition in NYC. The role of social channels in customer engagement continues to grow, and social customer engagement will be a significant theme at the conference. According to Paul Greenberg, CRM Evolution Conference Chair, author, and Managing Principal at The 56 Group, social channels have become so pervasive that there is no longer a clear reason to make a distinction between “social CRM” and traditional CRM systems. Why not? Because social is a communication hub every bit as vital and used as the phone or email. What makes social different is that if you think of it as a phone, it’s a party line. That means customer interactions are far from secret, and social connections are listening in by the hundreds, hearing whether their friend is having a positive or negative experience with your brand. According to a Mention.com study, 76% of brand mentions are neutral, neither positive nor negative. These mentions fail to get much notice. So think what that means about the remaining 24% of mentions. They’re standing out, because a verdict, about you, is being rendered in them, usually with emotion. Suddenly, where the R of CRM has been lip service and somewhat expendable in the past, “relationship” takes on new meaning, seriousness, and urgency. Remarkably, legions of brands still approach CRM as if it were 1982. Today, brands must provide customer experiences the customer actually likes (how dare they expect such things). They must intimately know not only their customers, but each customer, because technology now makes personalized experiences possible. That’s why the Oracle Social Cloud has been so mission-oriented about seamlessly integrating social with sales, marketing and customer service interactions so the enterprise can have an actionable 360-degree view of the customer. It’s the key to that customer-centricity we hear so much about these days. If you’re attending CRM Evolution, Chris Moody, Director of Product Marketing for the Oracle Marketing Cloud, will show you how unified customer experiences and enhanced customer centricity will help you attract and keep ideal customers and brand advocates (“The Pursuit of Customer-Centricity” Aug 19 at 2:45p ET) And Meg Bear, Group Vice President for the Oracle Social Cloud, will sit on a panel talking about “terms of engagement” and the ways tech can now enhance your interactions with customers (Aug 20 at 10a ET). If you can’t be there, we’ll be doing our live-tweeting thing from the @oraclesocial handle, so make sure you’re a faithful follower. You’ll notice NOBODY is writing about the wisdom of “company-centricity.” Now is the time to bring your customer relationship management into the socially connected age. @mikestilesPhoto: Sue Pizarro, freeimages.com

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  • SeLinux blocking connection to sshd on Ubuntu 9.10

    - by Barton Chittenden
    When I try to log on to my laptop, which runs Ubuntu 9.10, the server rejects my login attempts. Checking /var/log/auth.log, I see the following: Feb 14 12:41:16 tiger-laptop sshd[6798]: error: ssh_selinux_getctxbyname: Failed to get default SELinux security context for tiger I googled for this, and ran across the following: http://www.spinics.net/lists/fedora-.../msg13049.html Here's the part that I think relates to the problem that I'm having: Quote: What's wrong on my system? Why it's not possible to login even if selinux is in permissive mode? Any suggestions? I'd start by trying to figure out why sshd isn't running in sshd_t (it seems to be running in sysadm_t). Paul. selinux mailing list selinux@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mail...stinfo/selinux Yes, sshd is running in sysadm_t: ps axZ | grep sshd system_u:system_r:sysadm_t 3632 ? Ss 0:00 /usr/sbin/sshd -o PidFile=/var/run/sshd.init.pi ls -Z /usr/sbin/sshd system_ubject_r:sshd_exec_t /usr/sbin/sshd Don't know why it's not sshd_t. I didn't modified something. It's a standard installation of sles11 with the default reference policy from tresys. Maybe this code snippet from policy/modules/services/ssh.te is responsible for that: Allow ssh logins as sysadm_r:sysadm_t gen_tunable(ssh_sysadm_login, true) Any ideas? Do you have boolean init_upstart set to on? if not try setting it to on. I do not believe ssh_sysadm_login boolean works currently but i may be mistaken. -- Yeah, setting init_upstart to on did the trick! THANK A LOT! Do you know why this prevents the user from logging in through ssh even if selinux is set to permissive?? Ok, so the million dollar question is "where do I set 'init_upstart=1'"? It's not clear from context which configuration file needs to be edited, and I'm not at all familiar with SELinux configuration.

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  • Running Jackd on Ubuntu for my External Firewire Sound card

    - by Asaf
    Hello, I'm running Ubuntu 10.04 and I have an external Sound card: Phonic Firefly 302. I've connected the device, installed Jackd, added the lines: @audio - rtprio 99 @audio - memlock 500000 @audio - nice -10 to /etc/security/limits.conf logged out, logged back in, ran qjackctl (sudo qjackctl to be exact), ran the settings and chose "firewire" on the driver option, pressed "Start" and that was the output: 20:10:19.450 Patchbay deactivated. 20:10:19.578 Statistics reset. 20:10:19.601 ALSA connection graph change. 20:10:19.828 ALSA connection change. 20:10:21.293 Startup script... 20:10:21.293 artsshell -q terminate sh: artsshell: not found 20:10:21.695 Startup script terminated with exit status=32512. 20:10:21.695 JACK is starting... 20:10:21.695 /usr/bin/jackd -dfirewire -r44100 -p1024 -n3 jackd 0.118.0 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn and others. jackd comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details 20:10:21.704 JACK was started with PID=22176. no message buffer overruns JACK compiled with System V SHM support. loading driver .. libffado 2.0.0 built Mar 31 2010 14:47:42 firewire ERR: Error creating FFADO streaming device cannot load driver module firewire no message buffer overruns 20:10:21.819 JACK was stopped successfully. 20:10:21.819 Post-shutdown script... 20:10:21.822 killall jackd jackd: no process found 20:10:22.230 Post-shutdown script terminated with exit status=256. 20:10:23.865 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info. Error: "/tmp/kde-asaf" is owned by uid 1000 instead of uid 0.

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  • Postfix 554 <[email protected]>: Relay access denied

    - by Matt
    So i am trying to set postfix up and I am running into some problems.....here is my files vim /etc/postfix/main.cf relayhost = [smtp.gmail.com]:587 smtp_connection_cache_destinations = smtp.gmail.com smtp_sasl_auth_enable=yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_tls_security_options = noanonymous tls_random_source = dev:/dev/urandom smtp_tls_CAfile= /etc/pki/CA/cacert.pem smtp_tls_security_level = may smtp_tls_scert_verifydepth = 9 append_dot_mydomain = no readme_directory = no myhostname = maggie.deliverypath.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = maggie.deliverypath.com, localhost.deliverypath.com, , localhost mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all I also have the gmail password info vim /etc/postfix/sasl_passwd gmail-smtp.l.google.com [email protected]:somepass smtp.gmail.com [email protected]:somepass then I try to follow this article and i get this output telnet mail.demoslice.com 25 Trying 67.207.128.80... Connected to www.slicehost.com. Escape character is '^]'. 220 www.slicehost.com ESMTP Postfix (Ubuntu) HELO test.demoslice.com 250 www.slicehost.com MAIL FROM:<[email protected]> 250 Ok RCPT TO:<[email protected]> 554 <[email protected]>: Relay access denied its started service postfix start * Starting Postfix Mail Transport Agent postfix ...done. then the screen gets frozen and i cant do anything....any ideas

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  • How to use different scaling for every monitor?

    - by Mikael Koskinen
    One of the new features in Windows 8.1 is the new "Desktop display scaling", which allows user to configure scaling per monitor. I've been trying to get this working in preview but with no success. If I configure the scaling, it always affects all of my monitors. I have two monitors, the main one with a higher resolution and the secondary with "normal" resolution. The secondary monitor is used in portrait mode. I would like to configure the main monitor's scaling as the text is currently too small. Here's how things look at the configuration screen by default: Now if I adjust the scaling, click apply and do relogin, everything is bigger. On both of my monitors. I haven't clicked the "Let me choose one scaling level for all my displays", but still the slider seems to affect both of them. If I check the "Let me choose one scaling level", the UI changes to look similar to what we have in Windows 8: Still the problem persists. The scaling is applied to both of my monitors. So, it doesn't matter if I check the box or not, the scaling is always applied to all the displays. Any idea how I could get this to work in preview? I've read some comments which seem to indicate that this should work in preview, though Paul Thurrott mentioned at his Winsupersite article that he either didn't get this to work.

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  • Shrinking a large transaction log on a full drive

    - by Sam
    Someone fired off an update statement as part of some maintenance which did a cross join update on two tables with 200,000 records in each. That's 40 trillion statements, which would explain part of how the log grew to 200GB. I also did not have the log file capped, which is another problem I will be taking care of server wide - where we have almost 200 databases residing. The 'solution' I used was to backup the database, backup the log with truncate_only, and then backup the database again. I then shrunk the log file and set a cap on the log. Seeing as there were other databases using the log drive, I was in a bit of a rush to clean it out. I might have been able to back the log file up to our backup drive, hoping that no other databases needed to grow their log file. Paul Randal from http://technet.microsoft.com/en-us/magazine/2009.02.logging.aspx Under no circumstances should you delete the transaction log, try to rebuild it using undocumented commands, or simply truncate it using the NO_LOG or TRUNCATE_ONLY options of BACKUP LOG (which have been removed in SQL Server 2008). These options will either cause transactional inconsistency (and more than likely corruption) or remove the possibility of being able to properly recover the database. Were there any other options I'm not aware of?

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  • Tools to manage sql 2008 database mirroring?

    - by lemkepf
    We are going to be moving about 20 databases that live on a single instance of sql 2000 to a sql 2008 r2 environment with database mirroring. What I'm looking for is a tool or scripts that will help me manage the conversion and management of those 20db's onto this new mirrored environment easily. There are many steps in setting each DB up and I want to automate as much as possible. Edit: Here are the steps I've been doing manually: Create the same username/passwords from the old sql 2000 server onto new sql 2008 server. Then sync those users/passwords onto the other sql 2008 server with the same SSID's so when we do the db backup and restore they match up. Take a backup of each sql 2000 db's. Copy them to server A. Restore the backup to server A. Backup from server a, copy to server b, restore there. Run the mirror "configure security" wizard. Start mirroring. I've love to be able to script this out or have a tool that does it for me. Thanks! Paul

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  • SeLinux blocking connection to sshd on Ubuntu 9.10

    - by Barton Chittenden
    When I try to log on to my laptop, which runs Ubuntu 9.10, the server rejects my login attempts. Checking /var/log/auth.log, I see the following: Feb 14 12:41:16 tiger-laptop sshd[6798]: error: ssh_selinux_getctxbyname: Failed to get default SELinux security context for tiger I googled for this, and ran across the following: http://www.spinics.net/lists/fedora-.../msg13049.html Here's the part that I think relates to the problem that I'm having: Quote: What's wrong on my system? Why it's not possible to login even if selinux is in permissive mode? Any suggestions? I'd start by trying to figure out why sshd isn't running in sshd_t (it seems to be running in sysadm_t). Paul. selinux mailing list selinux@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mail...stinfo/selinux Yes, sshd is running in sysadm_t: ps axZ | grep sshd system_u:system_r:sysadm_t 3632 ? Ss 0:00 /usr/sbin/sshd -o PidFile=/var/run/sshd.init.pi ls -Z /usr/sbin/sshd system_ubject_r:sshd_exec_t /usr/sbin/sshd Don't know why it's not sshd_t. I didn't modified something. It's a standard installation of sles11 with the default reference policy from tresys. Maybe this code snippet from policy/modules/services/ssh.te is responsible for that: Allow ssh logins as sysadm_r:sysadm_t gen_tunable(ssh_sysadm_login, true) Any ideas? Do you have boolean init_upstart set to on? if not try setting it to on. I do not believe ssh_sysadm_login boolean works currently but i may be mistaken. -- Yeah, setting init_upstart to on did the trick! THANK A LOT! Do you know why this prevents the user from logging in through ssh even if selinux is set to permissive?? Ok, so the million dollar question is "where do I set 'init_upstart=1'"? It's not clear from context which configuration file needs to be edited, and I'm not at all familiar with SELinux configuration.

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  • Developer hardware autonomy in a managed desktop environment [closed]

    - by Troy Hunt
    I’m looking for some feedback on how developer PCs are managed within environments that have a strict managed desktop policy (normally large corporations). For example, many corporate environments control the installation of software and the deployment of patches and virus updates through a centralised channel. This usually means also dictating the OS version and architecture (32 bit versus 64 bit) which will likely also mean standardised hardware configurations. I’m particularly interested in feedback from developers who work in this sort of environment but have a high degree of autonomy over their machines. This might mean choosing your own hardware vendor, OS type and version and perhaps how the machines are built and maintained. I have several specific questions: How do you satisfy the needs of security, governance etc whilst maintaining your autonomy? For example, how do you address concerns about keeping virus definitions and OS patches up to date? Do you have a process for gaining exemption from standard desktop builds and if so, what do you need to demonstrate in order to get this? How have you justified this need to the decision makers? Essentially, what is the benefit to your role as a developer by having this degree of autonomy? Thanks very much everyone. Update: There's a great post from Jean-Paul Boodhoo which addresses the developer tool component of the quesiton here: http://blog.jpboodhoo.com/TheFallacyOfTheStandardizedDeveloperMachineimage.aspx

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  • Windows 7, Black screen with cursor, impossible to logon

    - by PJC
    First - I have gone through as many possible solutions I've found here and elsewhere. [Edit - to describe the issue in more detail, the PC appears to boot correctly, but instead of the logon screen, I have been getting a black screen WITH the pointer cursor, and it responds correctly to the mouse. Pressing CTL-ALT-DEL brings up the logon screen's background, but with no logon area nor any other content. This screen was at the full resolution before I uninstalled the graphics driver in safe-mode.] I also just ran a full up-to-date AVG scan from boot media. [Edit - the AVG scan, which was updated to today's virus signatures, found no issues at all.] So - steps I've tried: Safe Boot, Restore from before the issue - done, no help. Uninstall the graphics driver - done, now i have a 1024x768 fallback screen, still no way in. sfc /scannow - only doable from Safe boot obviously, but no change. [Edit - booting from restore media, performing a startup repair and...]Restore further back - restored to 2 days ago, and I'd had many reboots since then with no problem. Enable autologin to try to get beyond the login screen - done, doesn't work. It seems the best advice is complete reinstall, but I really don't want to do that because it'll take 3-4 days to add all the apps I use. Some key points to note - in both states - before and after removing the video driver, I always had a mouse cursor on the screen. CTL-ALT-DEL flashes up the login background, but no login info. I can (and often do) reinstall from scratch, but was at a fairly stable state before this, and would prefer not to. -Paul

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  • Gathering Staff anyone interested?

    - by kasene
    Thread Title - Gathering Staff Rush-Soft Game Design is currently looking for staff of a moderate skill level. Team Name - RushSoft Game Design Project Name - N/A We are gathering staff so that we can begin working on a new game. Target Aim - Freeware / Free Version - Paid Version With our first project our aim is to simply get our name out there. Generally we will be targeting a freeware distribution platform or a Free and Paid version. Compensation - Prehaps in the future but don't rely on it If in the future we start developing a game we intend to make any sort of sizable profit from then yes, there will be compensation however currently our low, low funding comes from generous donations. Any money that we make for now will go to the teams funding for things like engine licenses and company registration. Technology - C/C++ RSETech Our primary functional language will be C/C++ as most games are. We will be using a custom built library built on Direct3D called RSETech or RushSoft Engine Technology. Currently its is fully capable of being used for developing a game. The final version is made up of almost entirely C (No C++ or OOP). There is a C++ version currently in the works. Programming: - Microsoft Visual C++ 2008 / 2010 2D Art - Photoshop CS2 - GIMP Talent Needed - We currently are in need of x2 Programmers - With understanding of the following C/C ++ and game programming aspects: -If/Else Conditions -Functions/Methods -Arrays -Pointers (You don't need to fully understand these. Just know when they need to be used.) -Enums -Loops (For and While) -Structs (and How to use . and - syntax) -Classes (and how to call methods and access variables from a class) -State Machines -Switches -Include Guards -Understanding of how game loops work in general. (Init, Update, Render, Deinit) x2 Artists - As long as you have the means to and are able to draw 2D sprites and collab with a game designer to get a good result. 1 or more Game Designers - You can design levels (for platformers) as well as write game scripts and you can come up with good ideas and game mechanics. As long as you can do these things and are able to work well with artists and programmers you're golden. Business Consultant - Someone who knows the industry and how it works. Will inquire about possible distribution platforms as well as contact other developers, websites, and publishers on RushSofts behalf. Team Structure - Kasene Clark - Co-Founder/Lead Programmer/Game Designer Casey W - Co-Founder/Artist(GC/Animation)/Game Designer Nathan Mayworm - Game Designer. Website - RushSoft Websitek Contact - Kasene Clark [email protected] - [email protected] Phone - 12075181967 Feedback - Any Thank You! -Kasene

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  • what to do with a flawed C++ skills test

    - by Mike Landis
    In the following gcc.gnu.org post, Nathan Myers says that a C++ skills test at SANS Consulting Services contained three errors in nine questions: Looking around, one of fthe first on-line C++ skills tests I ran across was: http://www.geekinterview.com/question_details/13090 I looked at question 1... find(int x,int y) { return ((x<y)?0:(x-y)):} call find(a,find(a,b)) use to find (a) maximum of a,b (b) minimum of a,b (c) positive difference of a,b (d) sum of a,b ... immediately wondering why would anyone write anything so obtuse. Getting past the absurdity, I didn't really like any of the answers, immediately eliminating (a) and (b) because you can get back zero (which is neither a nor b) in a variety of circumstances. Sum or difference seemed more likely, except that you could also get zero regardless of the magnitudes of a and b. So... I put Matlab to work (code below) and found: when either a or b is negative you get zero; when b a you get a; otherwise you get b, so the answer is (b) min(a,b), if a and b are positive, though strictly speaking the answer should be none of the above because there are no range restrictions on either variable. That forces test takers into a dilemma - choose the best available answer and be wrong in 3 of 4 quadrants, or don't answer, leaving the door open to the conclusion that the grader thinks you couldn't figure it out. The solution for test givers is to fix the test, but in the interim, what's the right course of action for test takers? Complain about the questions? function z = findfunc(x,y) for i=1:length(x) if x(i) < y(i) z(i) = 0; else z(i) = x(i) - y(i); end end end function [b,d1,z] = plotstuff() k = 50; a = [-k:1:k]; b = (2*k+1) * rand(length(a),1) - k; d1 = findfunc(a,b); z = findfunc(a,d1); plot( a, b, 'r.', a, d1, 'g-', a, z, 'b-'); end

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  • XNA Notes 010

    - by George Clingerman
    With GDC 2011 wrapping up there were a LOT of great interviews and posts with and about XNA and XBLIG and some of our more notorious developers. Definitely worth spending many, many hours watching, listening and reading all those. Very inspiring! Also, don’t forget to get signed up for Dream Build Play! And just as an early warning reminder do NOT, I repeat do NOT wait to submit your game the last day. There are major issues submitting the last day every year and you do not want all your hard work to be hanging on whether your entry actually went through in that last day. Plan on submitting a few days if not a week before. I’m serious, you’ll thank yourself later! Now on to what’s happening in the XNA community! Time Critical XNA News: PAX East Meet Up (really wish I was going!) http://forums.create.msdn.com/forums/p/71921/439262.aspx Want to stay panicked about the countdown to Dream Build Play? Mike McLaughlin shares his DBP countdown clock http://twitter.com/#!/mikebmcl/status/44454458960252928 XNA Team: Nick Gravelyn Only needs less than 600 new users in his unique marketing plan for Pixel Man 2 http://nickgravelyn.com/pixelman2/ And hares his ad revenue numbers with his XNA WP7 games http://theoneswiththelight.com/2011/my-results-with-ad-revenue-for-wp7-games/ XNA MVPs: Andy “The ZMan” Dunn posts his 15,000th App Hub forum post and shares a few thoughts on the MVP summit http://forums.create.msdn.com/forums/t/77625.aspx Chris Williams shares his thoughts on the MVP summit http://geekswithblogs.net/cwilliams/archive/2011/03/07/144229.aspx XNA Developers: Nathan Fouts of Mommy’s Best games Wraps up GDC http://mommysbest.blogspot.com/2011/03/gdc-2011-wrapped.html And shares the wonderful screenshots from Serious Sam. (I’m so jealous people at PAX East willl be playing a demo of this game!) http://mommysbest.blogspot.com/2011/03/serious-sam-double-d.html James Silva of Ska Studios announces http://www.ska-studios.com/2011/03/09/vampire-smile-at-hotel-sierra/ http://www.ska-studios.com/2011/03/08/vengeance-begins-april-6th/ http://www.ska-studios.com/2011/03/04/good-morning-gato-52/ Michael McLaughlin writes an extremely useful set of tips for XNA WP7 developers http://geekswithblogs.net/mikebmcl/archive/2011/03/10/tips-for-xna-wp7-developers.aspx Robert Boyd “the one man XBLIG improving machine” posts his 9 tips for marketing an Xbox LIVE Indie Gam http://www.gamasutra.com/blogs/RobertBoyd/20110309/7183/9_Tips_for_XBLIG_Marketing.php http://forums.create.msdn.com/forums/p/77534/470586.aspx#470586 And shares his day by day experience at GDC this year http://www.gamasutra.com/blogs/RobertBoyd/20110301/7118/GDC_Saves_the_World__Impressions_Day_1.php http://www.gamasutra.com/blogs/RobertBoyd/20110301/7123/GDC_Saves_the_World__Impressions_Day_2.php http://www.gamasutra.com/blogs/RobertBoyd/20110303/7129/GDC_Saves_the_World__Impressions_Day_3.php http://www.gamasutra.com/blogs/RobertBoyd/20110307/7133/GDC_Saves_the_World__Impressions_Day_4.php http://www.gamasutra.com/blogs/RobertBoyd/20110307/7160/GDC_Saves_the_World__Impressions_Day_5.php Phillipe Da Silva releases new IGF Pong Sample preview http://www.vimeo.com/20904070 Xbox LIVE Indie Games (XBLIG): Gamergeddon posts XBox Indie Game Roundup for March 6th http://www.gamergeddon.com/2011/03/06/xbox-indie-game-round-up-march-6th/ Dealspwn interviews FortressCraft developer Projector Games http://www.dealspwn.com/fortresscraft-developer-interview-minecraft-clones-venting-haters-part-1/ http://www.dealspwn.com/fortresscraft-developer-interview-part-2-trials-tribulations-indie-development/ Writings of Mass Destruction continues the Xbox LIVE Indie Game a day campaign, here’s his take on FishCraft (be sure to check out his other posts!) http://writingsofmassdeduction.com/2011/03/05/day-116-fishcraft/ Tom Ogburn shares his GDC notes on the XBLIG panel jotted quickly while attending the panel http://twitter.com/#!/TOgburn/status/44454191028125696 http://www.starlitskygames.com/blogs/site_news/archive/2011/03/06/802.aspx Dave Voyles of Armless Octopus has crazy good coverage on XNA and Xbox LIVE Indie Game developers at GDC 2011. Interviews and articles all extremely well done! http://www.armlessoctopus.com/2011/03/06/gdc-2011-successful-indie-developers-share-insight-on-microsofts-self-publishing-service/ There’s honestly so many posts and interviews you should just hit his front page and scroll down through all of the latest ones. http://www.armlessoctopus.com/ GameMarx Episode 12 http://www.gamemarx.com/video/the-show/27/ep-12-march-4-2011.aspx B.U.T.T.O.N now on Steam! http://www.gamesetwatch.com/2011/03/button_party_game_now_on_steam.php German Xbox Dashboard gets review program from GamePro http://www.armlessoctopus.com/2011/03/07/gamepo-indie-review-show-debuts-on-german-xbox-dashboard/ XboxIndies.com (one of the best XNA sites out there at this point!) continues to add review sites to it’s main review feed. (And don’t forget to play with that awesome XBLIG pivot control!) http://xboxindies.com/ Kris Steele of FunInfused Games shares early footage of his game World of Chalk http://twitter.com/#!/kriswd40/status/45007114371989504 Raymond Matthews of Darkstarmatryx reviews FunInfused Games Abduction Action http://www.darkstarmatryx.com/?p=264 TheVideoGamerRob reviews Zombie Football Carnage http://videogamerrob.wordpress.com/2011/03/08/xblig-review-zombie-football-carnage/ XBLIG Square Off Making the Jump to WP7 http://www.wp7connect.com/2011/03/08/xblig-square-off-will-make-the-jump-to-windows-phone/ Mommy’s Best Games making the news round with their Serious Sam announcement http://www.joystiq.com/2011/03/09/serious-sam-gets-serious-indie-cred-with-new-indie-series/ Most quoted and linked XBLIG article of the week with the least amount of actual facts and reporting. Shared only because it makes me sad that this is the best coverage we get. (Hey reporters, there’s LOT and LOTS of XBLIG and XNA experts you can contact if you need to check up on facts or wonder why on questions like, Why can’t XBLIGs have Nazis? There’s actually a real answer for that..) http://www.joystiq.com/2011/03/06/xblig-facts-nazi-killing-a-no-no-revenue-a-yes-yes/ XNA Development: Mort8088 has been in an XNA tutorial writing frenzy releasing 4 XNA 4.0 entry level tutorials this week! http://mort8088.com/2011/03/06/xna-4-0-tutorial-0-intro/ http://mort8088.com/2011/03/06/xna-4-0-tutorial-1-fonts/ http://mort8088.com/2011/03/06/xna-4-0-tutorial-2-sprites/ http://mort8088.com/2011/03/06/xna-4-0-tutorial-3-input-from-keyboard/ Interesting discussion on what it means to be a community (you do have to sign up to be a member of the XNA UK forums to read it...) http://twitter.com/#!/XNAUK/status/44705269254594560 Slyprid continues his incredible pace on Transmute and shares screens of his new Animation Builder http://twitter.com/#!/slyprid/status/45169271847911424 http://forgottenstarstudios.com/blog/ Philippe Da Silva wants to know who is using IGF for their games. If it’s you, drop him a note letting him know! http://twitter.com/#!/philippedasilva/status/44325893719588864 New Sunburn Video Tutorials released http://www.synapsegaming.com/blogs/fivesidedbarrel/archive/2011/03/07/new-documentation-video-tutorials.aspx Loading and rendering animated collada models using XNA 4.0 http://bunkernetz.wordpress.com/2011/03/09/loading-and-rendering-animated-collada-models-using-xna-4-0/ XNA for Silverlight Developers Part 6 Accelerometer Input http://buzzgamesnews.blogspot.com/2011/03/xna-for-silverlight-developers-part-6.html

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  • Columnstore Case Study #2: Columnstore faster than SSAS Cube at DevCon Security

    - by aspiringgeek
    Preamble This is the second in a series of posts documenting big wins encountered using columnstore indexes in SQL Server 2012 & 2014.  Many of these can be found in my big deck along with details such as internals, best practices, caveats, etc.  The purpose of sharing the case studies in this context is to provide an easy-to-consume quick-reference alternative. See also Columnstore Case Study #1: MSIT SONAR Aggregations Why Columnstore? As stated previously, If we’re looking for a subset of columns from one or a few rows, given the right indexes, SQL Server can do a superlative job of providing an answer. If we’re asking a question which by design needs to hit lots of rows—DW, reporting, aggregations, grouping, scans, etc., SQL Server has never had a good mechanism—until columnstore. Columnstore indexes were introduced in SQL Server 2012. However, they're still largely unknown. Some adoption blockers existed; yet columnstore was nonetheless a game changer for many apps.  In SQL Server 2014, potential blockers have been largely removed & they're going to profoundly change the way we interact with our data.  The purpose of this series is to share the performance benefits of columnstore & documenting columnstore is a compelling reason to upgrade to SQL Server 2014. The Customer DevCon Security provides home & business security services & has been in business for 135 years. I met DevCon personnel while speaking to the Utah County SQL User Group on 20 February 2012. (Thanks to TJ Belt (b|@tjaybelt) & Ben Miller (b|@DBADuck) for the invitation which serendipitously coincided with the height of ski season.) The App: DevCon Security Reporting: Optimized & Ad Hoc Queries DevCon users interrogate a SQL Server 2012 Analysis Services cube via SSRS. In addition, the SQL Server 2012 relational back end is the target of ad hoc queries; this DW back end is refreshed nightly during a brief maintenance window via conventional table partition switching. SSRS, SSAS, & MDX Conventional relational structures were unable to provide adequate performance for user interaction for the SSRS reports. An SSAS solution was implemented requiring personnel to ramp up technically, including learning enough MDX to satisfy requirements. Ad Hoc Queries Even though the fact table is relatively small—only 22 million rows & 33GB—the table was a typical DW table in terms of its width: 137 columns, any of which could be the target of ad hoc interrogation. As is common in DW reporting scenarios such as this, it is often nearly to optimize for such queries using conventional indexing. DevCon DBAs & developers attended PASS 2012 & were introduced to the marvels of columnstore in a session presented by Klaus Aschenbrenner (b|@Aschenbrenner) The Details Classic vs. columnstore before-&-after metrics are impressive. Scenario   Conventional Structures   Columnstore   Δ SSRS via SSAS 10 - 12 seconds 1 second >10x Ad Hoc 5-7 minutes (300 - 420 seconds) 1 - 2 seconds >100x Here are two charts characterizing this data graphically.  The first is a linear representation of Report Duration (in seconds) for Conventional Structures vs. Columnstore Indexes.  As is so often the case when we chart such significant deltas, the linear scale doesn’t expose some the dramatically improved values corresponding to the columnstore metrics.  Just to make it fair here’s the same data represented logarithmically; yet even here the values corresponding to 1 –2 seconds aren’t visible.  The Wins Performance: Even prior to columnstore implementation, at 10 - 12 seconds canned report performance against the SSAS cube was tolerable. Yet the 1 second performance afterward is clearly better. As significant as that is, imagine the user experience re: ad hoc interrogation. The difference between several minutes vs. one or two seconds is a game changer, literally changing the way users interact with their data—no mental context switching, no wondering when the results will appear, no preoccupation with the spinning mind-numbing hurry-up-&-wait indicators.  As we’ve commonly found elsewhere, columnstore indexes here provided performance improvements of one, two, or more orders of magnitude. Simplified Infrastructure: Because in this case a nonclustered columnstore index on a conventional DW table was faster than an Analysis Services cube, the entire SSAS infrastructure was rendered superfluous & was retired. PASS Rocks: Once again, the value of attending PASS is proven out. The trip to Charlotte combined with eager & enquiring minds let directly to this success story. Find out more about the next PASS Summit here, hosted this year in Seattle on November 4 - 7, 2014. DevCon BI Team Lead Nathan Allan provided this unsolicited feedback: “What we found was pretty awesome. It has been a game changer for us in terms of the flexibility we can offer people that would like to get to the data in different ways.” Summary For DW, reports, & other BI workloads, columnstore often provides significant performance enhancements relative to conventional indexing.  I have documented here, the second in a series of reports on columnstore implementations, results from DevCon Security, a live customer production app for which performance increased by factors of from 10x to 100x for all report queries, including canned queries as well as reducing time for results for ad hoc queries from 5 - 7 minutes to 1 - 2 seconds. As a result of columnstore performance, the customer retired their SSAS infrastructure. I invite you to consider leveraging columnstore in your own environment. Let me know if you have any questions.

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  • Html.DropDownListFor<> and complex object in ASP.NET MVC2

    - by dagda1
    Hi, I am looking at ASP.NET MVC2 and trying to post a complex object using the new EditorFor syntax. I have a FraudDto object that has a FraudCategory child object and I want to set this object from the values that are posted from the form. Posting a simple object is not a problem but I am struggling with how to handle complex objects with child objects. I have the following parent FraudDto object whcih I am binding to on the form: public class FraudDto { public FraudCategoryDto FraudCategory { get; set; } public List<FraudCategoryDto> FraudCategories { get; private set; } public IEnumerable<SelectListItem> FraudCategoryList { get { return FraudCategories.Select(t => new SelectListItem { Text = t.Name, Value = t.Id.ToString() }); } The child FraudCategoryDto object looks like this: public class FraudCategoryDto { public int Id { get; set; } public string Name { get; set; } } On the form, I have the following code where I want to bind the FraudCategoryDto to the dropdown. The view is of type ViewPage: <td class="tac"> <strong>Category:</strong> </td> <td> <%= Html.DropDownListFor(x => x.FraudCategory, Model.FraudTypeList)%> </td> I then have the following controller code: [HttpPost] public virtual ViewResult SaveOrUpdate(FraudDto fraudDto) { return View(fraudDto); } When the form is posted to the server, the FraudCategory property of the Fraud object is null. Are there any additional steps I need to hook up this complex object? Cheers Paul

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  • How to extract $lastexitcode from c# powershell script execution.

    - by scope-creep
    Hi, I've got a scipt executing in C# using the powershell async execution code on code project here: http://www.codeproject.com/KB/threads/AsyncPowerShell.aspx?display=PrintAll&fid=407636&df=90&mpp=25&noise=3&sort=Position&view=Quick&select=2130851#xx2130851xx I need to return the $lastexitcode and Jean-Paul describes how you can use a custom pshost class to return it. I can't find any method or property in pshost that returns the exit code. This engine I have needs to ensure that script executes correctly. Any help would be appreciated. regards Bob. Its the $lastexitcode and the $? variables I need to bring back. Hi, Finally answered. I found out about the $host variable. It implements a callback into the host, specifically a custom PSHost object, enabling you to return the $lastexitcode. Here is a link to an explanation of $host. http://mshforfun.blogspot.com/2006/08/do-you-know-there-is-host-variable.html It seems to be obscure, badly documented, as usual with powershell docs. Using point 4, calling $host.SetShouldExit(1) returns 1 to the SetShouldExit method of pshost, as described here. http://msdn.microsoft.com/en-us/library/system.management.automation.host.pshost.setshouldexit(VS.85).aspx Its really depends on defining your own exit code defintion. 0 and 1 suffixes I guess. regards Bob.

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  • What do you mean by the expressiveness in a programming language?

    - by prosseek
    I see a lot of the word 'expressiveness' when people want to stress one language is better than the other. But I don't see exactly what they mean by it. Is it the verboseness/succinctness? I mean, if one language can write down something shorter than the other, does that mean expressiveness? Please refer to my other question - http://stackoverflow.com/questions/2411772/article-about-code-density-as-a-measure-of-programming-language-power Is it the power of the language? Paul Graham says that one language is more powerful than the other language in a sense that one language can do that the other language can't do (for example, LISP can do something with macro that the other language can't do). Is it just something that makes life easier? Regular expression can be one of the examples. Is it a different way of solving the same problem: something like SQL to solve the search problem? What do you think about the expressiveness of a programming language? Can you show the expressiveness using some code? What's the relationship with the expressiveness and DSL? Do people come up with DSL to get the expressiveness?

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  • Mapping interface or abstract class component

    - by Yann Trevin
    Please consider the following simple use case: public class Foo { public virtual int Id { get; protected set; } public virtual IBar Bar { get; set; } } public interface IBar { string Text { get; set; } } public class Bar : IBar { public virtual string Text { get; set; } } And the fluent-nhibernate map class: public class FooMap : ClassMap<Foo> { public FooMap() { Id(x => x.Id); Component(x => x.Bar, m => { m.Map(x => x.Text); }); } } While running any query with configuration, I get the following exception: NHibernate.InstantiationException: "Cannot instantiate abstract class or interface: NHMappingTest.IBar" It seems that NHibernate tries to instantiate an IBar object instead of the Bar concrete class. How to let Fluent-NHibernate know which concrete class to instantiate when the property returns an interface or an abstract base class? EDIT: Explicitly specify the type of component by writing Component<Bar> (as suggested by Sly) has no effect and causes the same exception to occur. EDIT2: Thanks to vedklyv and Paul Batum: such a mapping should be soon is now possible.

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  • How to include multiple tables programmaticaly into a Sweave document using R

    - by PaulHurleyuk
    Hello, I want to have a sweave document that will include a variable number of tables in. I thought the example below would work, but it doesn't. I want to loop over the list foo and print each element as it's own table. % \documentclass[a4paper]{article} \usepackage[OT1]{fontenc} \usepackage{longtable} \usepackage{geometry} \usepackage{Sweave} \geometry{left=1.25in, right=1.25in, top=1in, bottom=1in} \listfiles \begin{document} <<label=start, echo=FALSE, include=FALSE>>= startt<-proc.time()[3] library(RODBC) library(psych) library(xtable) library(plyr) library(ggplot2) options(width=80) #Produce some example data, here I'm creating some dummy dataframes and putting them in a list foo<-list() foo[[1]]<-data.frame(GRP=c(rep("AA",10), rep("Aa",10), rep("aa",10)), X1=rnorm(30), X2=rnorm(30,5,2)) foo[[2]]<-data.frame(GRP=c(rep("BB",10), rep("bB",10), rep("BB",10)), X1=rnorm(30), X2=rnorm(30,5,2)) foo[[3]]<-data.frame(GRP=c(rep("CC",12), rep("cc",18)), X1=rnorm(30), X2=rnorm(30,5,2)) foo[[4]]<-data.frame(GRP=c(rep("DD",10), rep("Dd",10), rep("dd",10)), X1=rnorm(30), X2=rnorm(30,5,2)) @ \title{Docuemnt to test putting a variable number of tables into a sweave Document} \author{"Paul Hurley"} \maketitle \section{Text} This document was created on \today, with \Sexpr{print(version$version.string)} running on a \Sexpr{print(version$platform)} platform. It took approx \input{time} sec to process. <<label=test, echo=FALSE, results=tex>>= cat("Foo") @ that was a test, so is this <<label=table1test, echo=FALSE, results=tex>>= print(xtable(foo[[1]])) @ \newpage \subsection{Tables} <<label=Tables, echo=FALSE, results=tex>>= for(i in seq(foo)){ cat("\n") cat(paste("Table_",i,sep="")) cat("\n") print(xtable(foo[[i]])) cat("\n") } #cat("<<label=endofTables>>= ") @ <<label=bye, include=FALSE, echo=FALSE>>= endt<-proc.time()[3] elapsedtime<-as.numeric(endt-startt) @ <<label=elapsed, include=FALSE, echo=FALSE>>= fileConn<-file("time.tex", "wt") writeLines(as.character(elapsedtime), fileConn) close(fileConn) @ \end{document} Here, the table1test chunk works as expected, and produced a table based on the dataframe in foo[[1]], however the loop only produces Table(underscore)1.... Any ideas what I'm doing wrong ?

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  • Multiplication algorithm for abritrary precision (bignum) integers.

    - by nn
    Hi, I'm writing a small bignum library for a homework project. I am to implement Karatsuba multiplication, but before that I would like to write a naive multiplication routine. I'm following a guide written by Paul Zimmerman titled "Modern Computer Arithmetic" which is freely available online. On page 4, there is a description of an algorithm titled BasecaseMultiply which performs gradeschool multiplication. I understand step 2, 3, where B^j is a digit shift of 1, j times. But I don't understand step 1 and 3, where we have A*b_j. How is this multiplication meant to be carried out if the bignum multiplication hasn't been defined yet? Would the operation "*" in this algorithm just be the repeated addition method? Here is the parts I have written thus far. I have unit tested them so they appear to be correct for the most part: The structure I use for my bignum is as follows: #define BIGNUM_DIGITS 2048 typedef uint32_t u_hw; // halfword typedef uint64_t u_w; // word typedef struct { unsigned int sign; // 0 or 1 unsigned int n_digits; u_hw digits[BIGNUM_DIGITS]; } bn; Currently available routines: bn *bn_add(bn *a, bn *b); // returns a+b as a newly allocated bn void bn_lshift(bn *b, int d); // shifts d digits to the left, retains sign int bn_cmp(bn *a, bn *b); // returns 1 if a>b, 0 if a=b, -1 if a<b

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  • An implementation of Sharir's or Aurenhammer's deterministic algorithm for calculating the intersect

    - by RGrey
    The problem of finding the intersection/union of 'N' discs/circles on a flat plane was first proposed by M. I. Shamos in his 1978 thesis: Shamos, M. I. “Computational Geometry” Ph.D. thesis, Yale Univ., New Haven, CT 1978. Since then, in 1985, Micha Sharir presented an O(n log2n) time and O(n) space deterministic algorithm for the disc intersection/union problem (based on modified Voronoi diagrams): Sharir, M. Intersection and closest-pair problems for a set of planar discs. SIAM .J Comput. 14 (1985), pp. 448-468. In 1988, Franz Aurenhammer presented a more efficient O(n log n) time and O(n) space algorithm for circle intersection/union using power diagrams (generalizations of Voronoi diagrams): Aurenhammer, F. Improved algorithms for discs and balls using power diagrams. Journal of Algorithms 9 (1985), pp. 151-161. Earlier in 1983, Paul G. Spirakis also presented an O(n^2) time deterministic algorithm, and an O(n) probabilistic algorithm: Spirakis, P.G. Very Fast Algorithms for the Area of the Union of Many Circles. Rep. 98, Dept. Comput. Sci., Courant Institute, New York University, 1983. I've been searching for any implementations of the algorithms above, focusing on computational geometry packages, and I haven't found anything yet. As neither appear trivial to put into practice, it would be really neat if someone could point me in the right direction!

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  • XML generation with java, trying to copy the whole node

    - by Pawel Mysior
    I've got an xml document that filled with people (parent node is "students", and there are 25+ "student" nodes). Each student looks like this: <student> <name></name> <surname></surname> <grades> <subject name=""> <small_grades></small_grades> <final_grade></final_grade> </subject> <subject name=""> <small_grades></small_grades> <final_grade></final_grade> </subject> </grades> <average></average> </student> Basically, what I want to do ('ve been asked to do) is to make a program that would get 3 students with the best average. While parsing the document and getting three best students isn't too difficult, the XML generation is a pain in the ass. Right now, what I'm doing is getting every single node from student and recreating it to a new file. Is there a way to copy the whole student node with everything that's in it? Regards, Paul

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