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I recently went through an exercise of converting Spring XML configuration files to Java-based configuration. The process went well for the most part, but I encountered an oddity around how to use factory beans when using Java configs. In XML, factory beans would be used like this
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I am also re-watching Strang's linear algebra videos (currently at the LU factorization). Watched half of the lectures about 2.5 years ago, then school started and actually took a linear algbera class that semester (we used Axler's "linear algebra done right"). Two years on, re-watching Strang's videos and seeing the abstract ideas of Axler's textbook being played out concretely in terms of computation and matrices - it's amazing! I can now..
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A lot of people have combined a RasPi and a SDR dongle to get a low power consumption ADS-B tracker. Tomasz Miklas has created an image for the Raspberry Pi, that has everything that is needed to run your own aircraft tracking "service" already set up. I've finally had a chance to experiment with it and this will be my short review.
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Last night I took Coin to task for extending their pre-order sale, again, in to the new year rather than allowing it to expire as should have happened sometime today. I briefly explained how this move has further devalued their product by virtually solidifying it at the $50 price point, and then talked about how Coin’s latest escapade showed a startling lack of respect for the individuals who put their hard-earned cash on the line so that..
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Less Overproduction (of unused functions in interface between team members) Less Waiting (for the only person who knows a particular area) Less Motion (as everyone gets more skilled) Fewer Defects (because two pair of eyes see better than one) Less Over-processing (from duplicate responsibility) Less Inventory (as team works on focused set of features and tasks) Less Transportation (handoffs inside a story) Less Underused talent (as everyon..
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I feel a bit like a broken record at this point, what with having already talked about Coin twice before , but the company’s latest stunt bears once again picking up my banner and going back off to war: earlier this evening, via their Twitter account, Coin posted a “BREAKING NEWS!” announcement that — you guessed it — extended the $50 off early adopter deal into the new year. Surprised? You should’t be. Permalink.
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I recently inherited some money, and as a consequence was able to pay off most of my long term, PITA, oh god how are we ever gonna get out of this, debt. The day I went from website to website zeroing everything out was supposed to be a good day;
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Perhaps the number one reason why people are afraid to try Lisp or don’t like it is the huge amounts of parentheses cluttering up the code. It’s said to be hard to read the code when it’s full of parentheses. Any experienced Lisp programmer will tell you that the parentheses disappear fairly early on. After a while, you hardly notice them as something annoying. In fact, going back to C-family languages will make you feel like you need t....
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Perhaps the number one reason why people are afraid to try Lisp or don’t like it is the huge amounts of parentheses cluttering up the code. It’s said to be hard to read the code when it’s full of parentheses. Any experienced Lisp programmer will tell you that the parentheses disappear fairly early on. After a while, you hardly notice them as something annoying. In fact, going back to C-family languages will make you feel like you need t....
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Derek Sivers: We got two ciders and she patiently waited while I spent 20 minutes reading through it. Pages filled with words about processing family drama, formulating goals, plans for life changes, romantic details, lists of regrets, contemplations, etc. I was surprised it was all meaningless to me. These pages
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We just opened the Flowhub website for pre-orders. Flowhub is the collaborative development environment for NoFlo and other flow-based programming systems. Once it launches for general use, Flowhub is the fruition of the project initiated by our successful NoFlo Development Environment Kickstarter from last August. Flowhub will provide a development environment for your flow-based programs, allowing you to collaborate and build....
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After all the talk of Castro in the last twenty-four hours since its release, and as an avid podcast listener myself , I couldn’t help but feel obligated to weigh in. With articles from John Moltz , Cody Fink , and Shawn Blanc waiting unread in my Instapaper queue, I downloaded Castro earlier this evening expecting to burn the midnight oil to get this article out. It came as a great surprise, then, when I tried every one of Castro’s ..
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This is a simple guide on how to use Saltstack, the configuration manager, in masterless mode. In most scenarios, you will use a Saltstack master to control many minions. Saltstack contains a lot of utilities to check the state of minions, gather information about them, etc. However, if you are working on a small, single-server application, Saltstack’s master-minion setup might be overkill. You can indeed use a single minion. A bit of....
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This is a simple guide on how to use Saltstack, the configuration manager, in masterless mode. In most scenarios, you will use a Saltstack master to control many minions. Saltstack contains a lot of utilities to check the state of minions, gather information about them, etc. However, if you are working on a small, single-server application, Saltstack’s master-minion setup might be overkill. You can indeed use a single minion. A bit of....
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Introduction I am very excited about the Beego web framework. I wanted to share with you how I use the framework to build real world web sites and web services. Here is a picture of the sample website the post is going to showcase: The sample web application: Implements a traditional grid view of data calling into MongoDB Provides a modal dialog box to view details using a partial view to generate the HTML Implement....
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Bugs caused by multi-threading can be very difficult to find. Here’s one I encountered recently. private static MyObject INSTANCE; public void init() { if( INSTANCE == null) { initInstance(); } } private static synchronized void initInstance() { if( INSTANCE != null) { return; } INSTANCE = new MyObject(); INSTANCE.initThis(); INSTANCE.initThat(); } At first glance, this code is fine. It uses a synchronized static method to cr..
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Michael Fitzgerald is the CEO of Submittable, a submission management tool with clients such as Playboy and CBS. He is the author of Radiant Days.
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Dear Aunt Rose Comma Thank You for the Speech Recognition Software Exclamation Point.
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www.mcsweeneys.net
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12 years ago
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eng
Linked to by Shawn Blanc , this is absolutely hilarious. Coincidentally Marco just posted an article titled Siri Accuracy Continues to Improve , where he complained about Siri’s frequent inability to process his requests. Since I finally upgraded to a 4S last month I have been using Siri daily, and with the exception of a few incorrect words it has worked both flawlessly and exceptionally quickly regardless of my cellular connection str..
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I have spent the last two or three months occasionally hearing Aaron Mahnke and Dave Caolo talk about an app capable of completely cutting a computer off from a certain set of domains as a means to increase productivity. By making it impossible for one to get distracted, the creators of the aptly-named SelfControl reason, productivity must increase accordingly. I downloaded SelfControl Sunday night, and even in my brief experience with it s..
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Sunday evening shortly after I wrote The One Where I Disavow Gaming , as I scrolled through Zite looking for something to read, I happened across a headline that immediately caught my attention: iPhone 6 Release Date And Recent Rumors . Given that the article came from a site I had never heard of before and because the Apple sphere has remained relatively quiet with regards to iPhone 6 rumors as of late, I opened the article with low ..
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The new release changes the way validation errors are reported. Please note that these changes will also affect future releases of Eve , the Python REST API Framework. What we had before was basically a list of human-readable errors. Each item in the list, while perfectly fine for human reading, wasn’t really ideal for algorithmic parsing. Why would you want to parse the errors with an algorithm? A common case would be when your client i..
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At Ardan Studios we have spent the last 6 months, in our spare time and on weekends, building a consumer based mobile application called OutCast . The mobile application is tailored towards those who like spending time outdoors, whether that be fishing, hunting or any other type of activity. This first release of OutCast shows the conditions for the buoy stations and marine forecasts areas within the United States. All this i....
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Apparently lots of people are using Vagrant these days, so I figured I’d try it out. I wanted to get it working on Fedora, and without Virtualbox. This is an intro article on Vagrant, and what I’ve done. I did this on Fedora 19. Feel free to suggest improvements. Intro : Vagrant is a tool that easily provisions virtual machines, and then kicks off a configuration management deployment like Puppet . It’s often used for development. I..
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Apparently lots of people are using Vagrant these days, so I figured I’d try it out. I wanted to get it working on Fedora, and without Virtualbox. This is an intro article on Vagrant, and what I’ve done. I did this on Fedora 19. Feel free to suggest improvements. Intro : Vagrant is a tool that easily provisions virtual machines, and then kicks off a configuration management deployment like Puppet . It’s often used for development. I..
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I’m now syndicated on the Fedora Project planet . If you haven’t read through my blog yet, let me introduce myself, I’m James , and I write The Technical Blog of James . I’m a sysadmin, DevOps/Puppet hacker, I.T./network architect and physiologist. Hi! I run Fedora as my primary desktop, but I also use it for servers, particularly for development before future versions of RHEL and CentOS release. I’m most well-known for Pupp..
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I’m now syndicated on the Fedora Project planet . If you haven’t read through my blog yet, let me introduce myself, I’m James , and I write The Technical Blog of James . I’m a sysadmin, DevOps/Puppet hacker, I.T./network architect and physiologist. Hi! I run Fedora as my primary desktop, but I also use it for servers, particularly for development before future versions of RHEL and CentOS release. I’m most well-known for Pupp..
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So far in this series we’ve seen two nontrivial algorithms for bandit learning in two different settings. The first was the UCB1 algorithm, which operated under the assumption that the rewards for the trials were independent and stochastic. That is, each slot machine was essentially a biased coin flip, and the algorithm was trying to find the machine with the best odds. The second was the Exp3 algorithm, which held the belief that the payof..
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So far in this series we’ve seen two nontrivial algorithms for bandit learning in two different settings. The first was the UCB1 algorithm, which operated under the assumption that the rewards for the trials were independent and stochastic. That is, each slot machine was essentially a biased coin flip, and the algorithm was trying to find the machine with the best odds. The second was the Exp3 algorithm, which held the belief that the payof..
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So far in this series we’ve seen two nontrivial algorithms for bandit learning in two different settings. The first was the UCB1 algorithm, which operated under the assumption that the rewards for the trials were independent and stochastic. That is, each slot machine was essentially a biased coin flip, and the algorithm was trying to find the machine with the best odds. The second was the Exp3 algorithm, which held the belief that the payof..
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My post on DZone about Humble Architects sparked somewhat of a controversy, especially around my disparaging comments regarding Spring and Dependency Injection Frameworks. In this post, I expand on why I stopped using Spring. I was one of the earliest adopter of Spring in Norway. We developed a large system where we eventually had to start thinking about things like different mechanisms for reuse of XML configuration. Eventually, this evolv..
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As I write this I have wasted almost an entire weekend. I got home Friday afternoon and spent the evening collecting gift ideas for my family and playing a video game; Saturday I wrote the first draft of an essay and reviewed three months’ worth of notes for an upcoming exam all before lunchtime, then proceeded to waste five hours playing that same game before cramming an article in with one foot out the door as I prepared for my girlfrie..
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With the release of Tweetbot 3 Tapbots brought a complete user interface overhaul to the beloved Twitter app alongside a whole slew of other improvements and changes. One such change saw the removal of both Tweetbot’s double- and triple-tap functionality. Citing increased responsiveness as the app would no longer have to wait for iOS to discern whether the user intended multiple taps, Tapbots replaced this feature with a curious swipe gestu..
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Every time I save an article to Instapaper I immediately open the app to make sure it actually went there. Although quite some time has passed since this proved a worthwhile exercise, my unfortunate habit stems from a fear derived of Instapaper’s past inability to parse Cabin Porn URLs. Because I once had faith in the system I happily sent every post I planned to write about over to Instapaper, intending to come back to those articles at ..
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So, you learned how to say “Hello world” with Ruby on Rails and it’s time to move on since that app is not something you will use unless you are the only one survived on earth. In this part of the tutorial you will get familiar with the following items. saving objects (from now on we will use the rails term model for these) the rails console using haml for your views using Twitter Bootstrap CSS to make your application look nice ....
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