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  Google releases new app to improve the accuracy of indoor positioning

Google Maps, Bing Maps, and some map providers have offered indoor map service such as in  the airport, major shopping malls and stadiums for some time. The problem is that these indoor maps can not precisely tell you which floor you are on a map, the GPS obviously can not work very well in this environment, WiFi and GPRS positioning is not very precise. Google announced the improvement program of Google Maps for accurate indoor positioning. The current owners of these places will cooperat...

   Google Map,Indoor service,Positioning     2012-04-08 09:46:53

  From College To Silicon Valley: Tips From A Veteran

Editor’s note: Pedram Keyani has been an engineer at Facebook since 2007. He is a manager on the Site Integrity team, the inventor of Keg Presence and a Hackathon enthusiast. Looking for internships and jobs after college can be exhilarating, especially for people with engineering and other technical expertise. In an otherwise tough job market, demand for software engineers is higher than ever right now. You may find that companies are actually competing to pay you for the knowledge y...

   Career,College,Silicon valley,Transition,Experience     2012-02-20 05:34:24

  Why there is white/blank space instead of AdSense ad on my website?

Usually if you see on your website a white/blank space instead of Adsense ads, this means that Adsense cannot show adds in that unit for some reasons (we are going to talk about possible reasons below) and also you have enabled the “Fill space with a solid color” feature (in the “Choose what to display if no relevant ads are available” settings of this ad unit). I probably should also say that if you set “Show public service ads” instead of the “F...

   AdSense,Ads,Blank,Reason,Solution     2011-07-25 12:52:29

  Computer skills one can learn within one day

Computer related technical skills are usually thought as complicated and difficult to understand. It's very difficult for one to get hands on one skill or master one skill. But if you really do want to learn something useful within one day, there are some good choices which will not take too long to get to know and use.. Version control:- Git, GitHub and SVN Regular expressions AWK sed Grep Learn how to do things with Vim that you never knew could be done. Set up a crawler that can scrape some ...

   Computer skills,Learn     2013-09-16 08:51:35

  Why I love Common Lisp and hate Java

“Common what?” is a common reply I get when I mention Common Lisp. Perhaps rightly so, since Common Lisp is not all that common these days. Developed in the sixties, it is one of the oldest programming languages out there. In its heydays it was used mostly for Artificial Intelligence research at MIT, Stanford, Carnegie Mellon and the like, and therefore has a lingering association with AI. People not in AI shy away from Lisp. Common Lisp is a powerful and versatile program...

   Lisp,Java,Comparison,Common Lisp     2012-01-30 05:48:16

  Sequencing the Startup DNA on LinkedIn

What makes entrepreneurs different, and where do they come from? Are they born or taught? Are they unusually mobile in their careers? Does geography play a role? Do mentors and relationships matter?Numerous studies explore these questions by surveying hundreds of entrepreneurs. At LinkedIn, we take a different approach, on a different scale. By sifting through more than 120 million public profiles, we can analyze tens of thousands of startup founders’ [1]profiles – and find co...

   Startup,Linkedin,Experience,Tips,DNA,Seq     2011-09-07 10:38:58

  I'm not good enough to work on open source software

Actually, that's not true - I've produced plenty of open source software over the years.  However, in a sense, it is true: only the very best actually get paid to work on open source software full time, and I'm not one of them.  People like Linus Torvalds.  People like Guido van Rossum, although even he supposedly divides his time, and does not work on Python full-time. Think about that.  Python is a hugely popular programming language used by many companies and ind...

   Open source,Free,Money,Full-time     2012-04-16 13:27:35

  malloc/free and new/delete in C++

malloc and free are C++/C language standard library functions, while new/delete are operator of C++. They can be used to allocate dynamic memory and free memory in C++ programs malloc/free can not meet the requirements of dynamic objects creation. Object needs to call the constructor to initialize the object when creating, the object needs to call the destructor before it is destroyed  Since malloc() and free() are library functions rather than operators, the compiler has no control permiss...

   C++,memory,malloc,free,new,delete     2012-06-20 06:52:09

  In praise of impractical programming

Although it’s become a cultural mainstay now, I still remember when I first saw that thick book — the one with the wizard on the cover — about a school for magic where wonders are easily conjured by those who know the proper spells. Of course, I’m talking about the Structure and Interpretation of Computer Programs. There was that other book with the spells, but the “Wizard Book” sincerely claimed to teach magic. For the past few years, I’ve been ...

   Impractical Programming,Structure,Scheme,Practical     2011-12-05 12:28:58

  How Integers Should Work (In Systems Programming Languages)

My last post outlined some of the possibilities for integer semantics in programming languages, and asked which option was correct. This post contains my answers. Just to be clear: I want practical solutions, but I’m not very interested by historical issues or backwards compatibility with any existing language, and particularly not with C and C++. We’ll start with: Premise 1: Operations on default integer types return the mathematically correct result or else trap. This is th...

   Number,Algorithm,System,Embedded system     2011-12-05 12:48:41

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