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Cluster-based Recommendation with Mahout
Mahout includes a few new experimental recommenders that are weakly documented at the moment. One of them is TreeClusteringRecommender which clusters your model into a set of groups and makes...
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Android’s RTP implementation
Although still being not really mature, Android is supporting RTSP streaming for a long time. In theory, it’s very trivial to play an RTSP link with MediaPlayer controller. MediaPlayer player = new...
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Setting bounds of a map to cover collection of POIs on Android
Lately, as I browse web for maps related questions on Android, what’s frequently requested is an example of setting bounds of a map (zooming to a proper level and panning) to be able show all of the...
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W3C Widgets: The good, the bad and the ugly
It hasn’t been a while since ppk wrote about totally a new W3C movement called “Widgets“. A Widget is a downloadable archive of HTML, JavaScript, CSS and a configuration file. It’s a downloadable web...
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Custom Scroll Distance for UIScrollView
Most recently, I was trying to create a slider for users to navigate between different items. A scroll view was working fine since it implements most of the scrolling behavior I needed in my...
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Why should developers blog?
If I make an statistical study out of my friends and colleges who are developers, I can barely can say 10% of them are blogging. Is blogging a nightmare, a time waster, a cheap-seat show where bloggers...
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Maps Development on Android: Registering a Maps API key
Location based applications are musts on mobile platforms. Android does not have maps natively but Google Maps team is providing an add-on that comes with Android SDK (at least 1.5). In this post, I’m...
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Redis: New Persistent Key-Value Store
Most recently, I’m working on Redis which is a key-value datastore with interesting characteristics. It’s ultra fast and has built in atomic operations to handle concurrent usage. Although everything...
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Why do Code Reviews Matter?
We build software together. Team sizes vary a lot but it’s usually not 2 or 3. Team members leave, new members join and in the end of the day codebases are shared among large numbers of different and...
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Let’s modify our representation of addresses in adr microformat
Microformats define a representation spec for addresses, called adr. This year, I made two distinct proposal to modify the current draft, but turned down each time I tried. In this post, I’m going to...
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