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SEARCH KEYWORD -- Waterfall model

  Google is returning back to China

It has been five years since Google announced its difficult decision to leave China in 2010. The well known reason was that Google didn't want to conform to China's censorship request on sensitive information. During these five years, many stories happened bbetween these two sides. Things may turn around now as there are a few indications where Google may return back to China at an appropriate time soon. The most convincing indication is that a customized Google play -- Google online shop may a...

   Google,China,Alphabet,Google play     2015-09-06 04:13:30

  Video website in big data era

Big data initially means the large data set which is not able to be analyzed, but later it was derivatized to the method to analyze huge amounts of data in  order to gain great value.This is a form which gradually gets attention, It's difficult to analyze these data and it's also difficult to store these data and it needs some unprecedented way, Now in China many companies use the open source Hadoop distributed data cluster to meet the needs of data statistics. Since we can get segmented d...

   Netflix,Big data,Data mining     2013-04-11 04:20:40

  CASSANDRA data model

Cassandra is an open source distributed database, it combines dynamic key/value and column oriented feature of Bigtable. Features of Cassandra are: Flexible schema, no need to design schema first, it's very convenient to add or delete strings Support range search on keys High usability, extensible. The single node error will not affect the cluster. We can think Cassandra's data model as a 4 or 5 dimensional Hash. COLUMN Columns is the smallest data unit in Cassandra, it is a 3 dimensional data...

   Cassandra,database,sort     2013-06-08 22:07:40

  GO AHEAD, SELL MY DATA

More and more I see articles popping up that bash social networks for "violating" our privacy and selling our information to advertisers. Inevitably, Facebook has been at the center of many of these "scandals". Today on HN I came across this interviewwith Disconnect co-founder Casey Oppenheim and I just don't get it.In it, he bashes Facebook (and other online advertisers) for using our information in order to serve up targeted ads. He points out that many of the " “free” service...

   Social network,Facebook,Privacy,Data,Ads     2011-10-19 14:12:08

  Why is single threaded Redis so fast

Redis is a high-performance, in-memory key-value database. According to official test reports, it can support around 100,000 QPS (queries per second) on a single machine. However, Redis uses a single-threaded architecture in its design. Why does Redis still have such high performance with a single-threaded design? Wouldn't it be better to use multiple threads for concurrent request processing? In this article, let's explore why Redis has a single-threaded architecture and still maintains its spe...

   REDIS,SINGLE-THREADED,MULTI-THREADING     2023-02-28 05:16:22

  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...

   APPLE,COMPUTER,HP,LAPTOP     2020-03-04 07:58:12

  How the Internet is Changing Economics

I'm not an economist by training, but I've spent a long time observing markets, and I've often wondered what the great economic thinkers of centuries past (Marx, Smith, Keynes, others) would say if they were alive today and could witness the transformations that have been caused by mass media (radio, TV, print) and the Internet. The Internet, in particular, has had a transformative effect that will doubtless be studied for hundreds of years to come. One of the things that can be said abou...

   Internet,Economic,Change,Reason     2012-01-14 12:03:05

  Why Does Work Start At 9 A.M.?

I prefer to come into work a little earlier before our 9 a.m. start time in order to leave before 5 p.m. My boss has no problem with my hours, though an older female colleague apparently does. She regularly tells me that this “special” work schedule is damaging my career trajectory and conveys to others that I am a diva. To that I reply, according to whom? There are many workplace assumptions that employees accept without question. Why does the traditional work day start at 9 a...

   Work,Start time,9 am,Reason,Women     2012-01-19 10:12:09

  Code Refurbishment

Within our industry we use a huge range of terminology.  Unfortunately we don’t all agree on what individual terms actually mean.  I so often hear people misuse the term “Refactoring” which has come to make the business in many organisations recoil in fear.  The reason for this fear I’ve observed is because of what people often mean when misusing this term.I feel we are holding back our industry by not being disciplined in our use of terminology.  If...

   Code Refurbishment,Code design,terminolo     2011-09-05 08:17:14

  Nokia unveils Lumia 820

Just finishing introducing the latest flagship model Lumia 920 Nokia introduced mid-range Lumia 820 which is equipped with Windows Phone 8The Lumia 820 is equipped with a Qualcomm Snapdragon S4 1.5GHz dual-core CPU, but the screen is 4.3 inch WVGA screen with 800 x 480 pixels, at the same time it is equipped with 8GB memory space and a 8-megapixel rear camera. In addition, users can extend 8 GB more memory space through Windows Phone 8's extension function.Lumia 820's screen adopts Super S...

   Nokia,Lumia 820,Window Phone 8     2012-09-05 19:10:14

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