NoSQL: Comparing the Different Solutions - ReadWriteCloud. Adrian Cockcroft, a cloud architect at Netflix, is running a series of posts looking at how different NoSQL databases handle common cloud computing tasks.
All the usual disclaimers apply: SQL is good for some things, and different scenarios call for different NoSQL solutions. No one solution is necessarily "better" overall. However, as Cockcroft writes "We need a basis for comparison across them, so that we understand the differences in behavior.
" Cockcroft created an example use case and is asking different NoSQL database developers to explain how their databases handle availability zones, partitioning between zones, appending items to lists, handling silent data corruption, and backup and restore. Cockcroft uses terms from Amazon AWS, but the concepts should be applicable to other cloud hosting platforms. Facebook & The Semantic Web.
This week we've been exploring the emergence of the Semantic Web among companies like Best Buy and Google.
It's all thanks to RDFa, code that is inserted into the HTML of web pages to add extra meaning. The increasing usage of RDFa was one of the main themes at the recent Semantic Technology conference in San Francisco. There is perhaps no better example than Facebook's use of RDFa. We chatted to Facebook open standards evangelist David Recordon to find out more. In April this year, Facebook announced a large-scale new platform called the Open Graph. The Open Graph in a Nutshell The Open Graph is a wide-ranging platform which includes features such as 'Like' buttons and publisher plug-ins.
When the Open Graph was announced, ReadWriteWeb feature writer Alex Iskold wrote a comprehensive guide to the Open Graph for publishers, users and competitors. Top 10 Semantic Web Products of 2010. Every year ReadWriteWeb selects the top 10 products or developments across a range of categories.
Secrets of the LinkedIn Data Scientists. I suffer from severe data envy when it comes to LinkedIn.
They have detailed information on millions of people who are motivated to keep their profiles up-to-date, collect a rich network of connections and have a strong desire from their users for more tools to help them in their professional lives. Over the past couple of years Chief Scientist DJ Patil has put together an impressive team of data scientists to deliver new services based around all that information. One of my favorites is their career explorer, using the accumulated employment histories of millions of professionals to help students understand where their academic and early job choices might lead them.
Ali Imam's connection network, via Russell Jurney Their work also shows up in some more subtle ways too, like the Groups you may like service that relies on their analyses and the SNA team's work to recommend groups that seem connected to your interests. Twitter users by location, thanks to Mechanical Turk matching. People in Tech: Andraz Tori, CTO/Co-Founder of Zemanta. Zemanta is a an interesting European startup that is applying semantic technologies to blogging.
Sarah Perez covered the company's launch in March. One can think of Zemanta as an auto-complete function for blogging. As you are typing up a new post, Zemanta's browser plugin fetches related content - images, articles, videos, links - and provides a simple and friendly UI for inserting the related content into your blog. The State of Linked Data in 2010. What Happens When You Deactivate Your Facebook Account. Facebook is a big part of millions and millions of peoples' lives, but what happens when you pull the plug?
Last night I met a man who walked to the edge of the cliff and nearly deactivated his Facebook account. He took a screenshot of what he saw after clicking the "deactivate my account" link on his account page - and it is pretty far-out. That man considered quitting Facebook because it was having an adverse emotional impact on him and I'll spare him and his contacts from posting the screenshot he shared with me. I have posted below though a shot of the screen I saw when I clicked that button myself.
Check it out. Top 10 Mobile Trends of 2010, Part 1: Design & Development. In a little under 3 weeks time, we will host our second unconference: the ReadWriteWeb Mobile Summit.
It's a 1-day event at the lovely Computer History Museum, in Mountain View, California. In preparation for the RWW Mobile Summit, we're going to outline the 10 leading trends of the Mobile Web in a 3-part series of posts. We'll delve more into these trends with you at the Summit, because our unconferences are all about audience participation.
In this, the first post, we'll outline 3 important design and development issues for the Mobile Web. Register now to discuss these and other topics at our unconference. Native App and/or Browser Based? Just as businesses in the PC-based Web spent years in the 90's wondering if a desktop app or web browser based service was the best choice, in 2010 the same question applies to mobile phone applications. Top 10 Mobile Trends of 2010: - Part 1: Design & Development - Part 2: Apps, Apps, Apps - Part 3: Emerging Markets Privacy Emerging Wireless Standards.