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On the past few weeks I’ve been working on a new venture centered around the iPhone. The process of building our app has been quite an adventure and we’ve experimented with several technologies that were new to us before reaching our current technology...
Jeff Rothschild, Vice President of Technology at Facebook gave a great presentation at UC San Diego on "High Performance at Massive Scale – Lessons learned at Facebook". The presentation’s abstract:
Facebook has grown into one of the largest...
tweetmeme_url='http://www.developerzen.com/2009/08/14/data-mining-handling-missing-values-the-database/'; tweetmeme_style = 'normal';tweetmeme_source = 'ekampf'; I’ve recently answered Predicting missing data values in a database...
tweetmeme_url='http://www.developerzen.com/2009/07/25/moving-your-application-to-amazon-s-cloud/'; tweetmeme_style = 'normal';tweetmeme_source = 'ekampf'; I’ve been dealing a lot with Amazon’s AWS platform lately. Mostly doing...
Facebook has the second largest installation of Hadoop (a software platform that lets one easily write and run distributed applications that process vast amounts of data), Yahoo being the first. It is also the creator of Hive, a data warehouse infrastructure...
Yahoo! is releasing its own distribution of Hadoop: Hadoop is a distributed file system and parallel execution environment that enables its users to process massive amounts of data. In response to frequent requests from the Hadoop community, Yahoo! is...
The basic model for MapReduce derives from the map and reduce concept in functional languages like Lisp. In Lisp, a map takes as input a function and a sequence of values and applies the function to each value in the sequence. A reduce takes as input...
A bunch of interesting/inspiring topics for the weekend… Designing “Big Data” Jeff Veen from Small Batch Inc. gave a 20-minutes talk at the Web2.0 Expo at San Francisco. During the talk he focuses on some classic examples for information visualization...
I wrote the stocky application more than a year ago as a research project aimed at proving that using WPF we can separate presentation metadata (XAML) from program logic. The goal was to provide the Duet team at SAP with a document reference sample for...
Guy wrote a post about rendering an RSS feed on ASP.NET MVC using custom feed model classes and a view that renders the feed XML.
There’s a better (shorter) way for achieving the same result while leveraging on the Syndication mechanism built into .NET...
It’s the end of the year, and like most bloggers I decided to take a look at my blog’s performance over the last year… My Top Posts (According to Google Analytics) Here’s are my top 10 posts from 2008, as ranked by Google Analytics: The Dark Side of LINQ...
I encountered this post on my weekend reading. 91 Surefire Ways to Become an Event Greater Developer contain a comprehensive guide linking to all sort of blog posts providing insights on improving your skills as a developer. While the list is very long...
(Originally posted at Cloud Avenue) Windows Live™Microsoft’s Windows Live ID team just announced their support for OpenID calling it a “de facto standard Web protocol for user authentication.” Beginning today, Windows Live™ ID is publicly committing to...