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AI solves complex biology problem from scratch
An interdisciplinary, interuniversity group of scientists from Vanderbilt, Cornell, and CFD Research Corporation have created an artificial intelligence capable of solving complex scientific problems from scratch. The AI, called ABE (Automated Biology Explorer), “discovered†how glycolysis produces energy in a living cell by looking at a set of data and then squeezing it into a mathematical formula, just like a human biology researcher.ABE is powered by the freeware Eureqa softw...
AI,Artificial intelligence,Biology,ABE 2011-10-17 11:08:58
Supercolliding a PHP array
Did you know that inserting 2^16 = 65536 specially crafted values into a normal PHP array can take 30 seconds? Normally this would take only 0.01 seconds. This is the code to reproduce it: <?php echo '<pre>'; $size = pow(2, 16); // 16 is just an example, could also be 15 or 17 $startTime = microtime(true); $array = array(); for ($key = 0, $maxKey = ($size - 1) * $size; $key <= $maxKey; $key += $size) { $array[$key] = 0; } $endTime = microtime(true); echo 'Inserting...
Go Error Best Practice
Being indulged in Go for quite a while and having implemented web-related programs, grpc interfaces and Operators, I seem to be an advanced beginner now. However, I am still a raw hand in production-environmental debugging, which is cumbersome if done by querying logs or error messages. Imagine the scenario that a full-text search is called when the specific location of the error log is missing. Then what happens when those error logs are not only in one place? Yes, my error logs can no longer h...
GO ERROR,ERROR HANDLING 2021-10-07 07:38:28
Web design trends in 2012. What’s new?
It’s no surprise they call them trends, become they come and go. Maybe you don’t want to take them with the constant changes in web design you sure don’t want to be left behind, do you? Nobody can predict the future of web design, but we’re already seeing small changes to the newer designs and I bet we all want to be part of the movement. Most of the changes in web design are subtle so we need to focus mainly on the concept behind each trend. We will exemplify e...
2012,Web design,Trend,Slab,Typography 2011-12-16 09:31:27
What did iPhone bring to us in the past 5 years?
It is five years now since the first iPhone was released on 29th June 2007. In these 5 years, iPhone is the biggest variable in technology industry on this planet. It brings revolutionary change to many industries including the mobile phone, communication and Internet. It brings us into the era of mobile web. BuzzFeed collected a series of pictures to summarize the changes brought to us by iPhone in these 5 years. Here are some of them.1. Apple is the most valuable company in the worldIn August ...
Silicon Valley engineers have something to say about work from home
Quitting from Google and joined Yahoo which was thought as a declining giant, Marissa Mayer has been trying to prove that she has the ability to lead this Internet giant to reverse the decline. In order to boost the low morale of the employees, Meyer tried to transplant Google's work culture to Yahoo with office decoration, free lunch and issuance of smart phones, these generous measures let her win the applause of the Silicon Valley.But a recent ban issued by Meyer has attracted a lot of contro...
Work from home,Yahoo, Marissa Mayer 2013-03-07 02:39:23
Is The Cloud Finally Catching Up With Mighty Oracle?
Oracle for years has seemed impervious to cloud computing. First Larry Ellison dismissed it. Then he sort of touted it, his version at least. But all along, Oracle was growing nicely. The industry chatter didn’t seem to matter. Big companies buy big software systems. Something changed this winter. Oracle’s software license sales limped up just 2% in December, and the company blamed customer budget cuts and fears over the European debt crisis. Sales to Europe, Africa and...
Cloud,Oracle,Incorporation,Trend 2012-02-23 07:17:03
Create cron job on CentOS
These two days, I am building a website and deploying it on a VPS server which uses CentOS 5. I don't have cPanel or Plesk for my account, so I need to install and configure everything myself including Apache, PHP, MySQL and FTP server, also today's topic cron job. Since my website has a ranking algorithm to calculate the rankings of each link and update the ranking on database and I need to calculate the rankings every 5 minutes, so I think to use cron jobs. Here are what I have done which may ...
cron job,crontab,CentOS,linux,php,example 2012-06-11 09:23:45
The Best Laptops for Freelancers
Whether you’re answering emails, beating a deadline, or looking for even more freelance gigs, many professionals simply can’t imagine their career without a laptop. It has become the ultimate work gadget of the 21st century, which many laptops now powerful enough to be used like a PC. However, not all freelancers are the same—and as such, require different tools to get the job done. That being said, here are some of the best laptops for every kind of freelancer imaginable. Best...
The basics of Client/Server socket programming
While Client/Server communication model is ubiquitous nowadays, most of them involve socket programming knowledge. In this post, I will introduce some rudimentary aspects of it: (1) Short/Long-lived TCP connection.Short-lived TCP connection refers to following pattern: Client creates a connection to server; send message, then close the connection. If Client wants to transmit information again, repeat the above steps. Because establishing and destroying TCP s...
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