Home » Author Archives: Emmanuel Espina

Author Archives: Emmanuel Espina

Solr: Creating a spellchecker


In a previous post I talked about how the Solr Spellchecker works and then I showed you some test results of its performance. Now we are going to see another aproach to spellchecking. This method, as many others, use a two step procedure. A rather fast “candidate word” selection, and then a scoring of those words. We are going to ...

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Apache Mahout: Build a spam filter server


Something quite interesting has happened with Lucene. It started as a library, then its developers began adding new projects based on it. They developed another open source project that would add crawling features (among others features) to Lucene. Nutch is in fact a full featured web serach engine that anyone can use or modify. Inspired in some famous papers from ...

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