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  • Lorenzo Alberton
    November 2012 A little journey exploring job queue models and debunking some programming folklore around the effects of batching on latency Updated Kafka PHP client library Apache Scalability Message Queues Kafka 18 September 2012 New PHP client library for the Apache Kafka project Full support for Kafka 0 7 with robust socket handling complete test suite Zookeeper based consumer and many other improvements Musings on some technical papers I read this weekend Google Dremel NoSQL comparison Gossip Protocols Database Data structures Performance Scalability NoSQL 3 September 2012 Some random comments on Dremel and a benchmark on Key Value stores How to evaluate technical papers and read between the lines Historical Twitter access A journey into optimising Hadoop jobs Data structures Performance Scalability Hadoop 7 August 2012 A journey into optimising Hadoop jobs the strategies to scan and filter a PetaByte of archived data schedule new jobs and deliver data fast Kafka proposed as Apache incubator project PHP Performance Scalability NoSQL Message Queues Kafka 24 June 2011 Kafka is a distributed publish subscribe messaging system developed at LinkedIn designed to support a very high throughput persistent messages and parallel loading into Hadoop A proposal has been submitted to make Kafka an

    Original URL path: http://www.alberton.info/ (2016-04-23)
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  • Lorenzo Alberton - Articles
    Full support for Kafka 0 7 with robust socket handling complete test suite Zookeeper based consumer and many other improvements Musings on some technical papers I read this weekend Google Dremel NoSQL comparison Gossip Protocols Database Data structures Performance Scalability NoSQL 3 September 2012 Some random comments on Dremel and a benchmark on Key Value stores How to evaluate technical papers and read between the lines Historical Twitter access A journey into optimising Hadoop jobs Data structures Performance Scalability Hadoop 7 August 2012 A journey into optimising Hadoop jobs the strategies to scan and filter a PetaByte of archived data schedule new jobs and deliver data fast Kafka proposed as Apache incubator project PHP Performance Scalability NoSQL Message Queues Kafka 24 June 2011 Kafka is a distributed publish subscribe messaging system developed at LinkedIn designed to support a very high throughput persistent messages and parallel loading into Hadoop A proposal has been submitted to make Kafka an Apache incubator project NoSQL Databases What When and Why PHPUK2011 Database Data structures Performance Scalability NoSQL 27 February 2011 Some considerations about NoSQL databases and slides of my talk given at PHPUK 2011 NoSQL Databases What When and Why PHPNW10 slides and new job PHP Zend Framework Apache Performance Scalability Profiling 19 October 2010 Summary of the PHPNW10 conference Slides about my talk Profile your PHP application and make it fly and new job The Art of Scalability DPC10 wrapup PHP Database Performance Scalability 13 June 2010 A wrapup of the Dutch PHP Conference 2010 Uploaded slides of my talk The Art of Scalability Managing growth PHP UK 2010 RDBMS in the social networks age PHP Database PostgreSQL Firebird SQL Oracle SQL Server Data structures 27 February 2010 Wrapup of the PHP UK Conference 2010 Uploaded slides of my talk RDBMS in the

    Original URL path: http://www.alberton.info/articles (2016-04-23)
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  • Lorenzo Alberton - Projects
    both a Producer and a Consumer read more LibSVM2 http github com quipo LibSVM Experimental rewrite of libSVM and LibSVM Plus read more Politecnico di Torino Natural Language Processing http www corep it Developed several Automatic Text Classifiers with focus on opinion mining and sentiment analysis and an Information Extraction system for a R D job with a fund granted by the Research Consortium of Turin Polytechnic Field machine learning Languages C C Java read more Seagull PHP Framework http seagullproject org Seagull is a mature OOP framework CMS for building web command line and GUI applications read more WACT Web Application Component Toolkit http www phpwact org The Web Application Component Toolkit is a PHP framework for creating web applications WACT facilitates a modular approach where individual independent or reusable components may be integrated into a larger web application WACT assists in implementing the Model View Controller pattern and the related Domain Model Template View Front Controller and Application Controller patterns read more PEAR PHP Extension and Application Repository http pear php net PEAR is a structured library of high quality open source code for PHP users PEAR s mission is to provide reusable components lead innovation in PHP

    Original URL path: http://www.alberton.info/projects (2016-04-23)
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  • Lorenzo Alberton - Portfolio
    proposed as Apache incubator project NoSQL Databases What When and Why PHPUK2011 PHPNW10 slides and new job Buy me a book Portfolio Clients Lorenzo Alberton Lorenzo has been working with large enterprise UK companies for the past years and is now CTO at DataSift He s an international conference speaker and a long time contributor to many open source projects Follow lorenzoalberton Tags AJAX Apache Book Review Charset Cheat Sheet

    Original URL path: http://www.alberton.info/portfolio (2016-04-23)
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  • Lorenzo Alberton - Talks
    and explaining what processes to put in place what pitfalls to avoid and how to keep the system running We will walk through several scalability patterns clever techniques and cutting edge technologies high throughput message queues nosql databases monitoring tools each accompanied by one or more concrete examples Scalable Architectures Taming the Twitter Firehose View more presentations from Lorenzo Alberton Scaling Teams Processes and Architectures London Scalability Meetup 01 London UK 16 April 2012 Generic presentation about scalability challenges First London Scalability Meetup Quick overview of the DataSift architecture Scaling Teams Processes and Architectures View more presentations from Lorenzo Alberton Trees in the Database Advanced Data Structures PGCon 2011 Ottawa Canada 18 May 2011 Despite the NoSQL movement trying to flag traditional databases as a dying breed the RDBMS keeps evolving and adding new powerful weapons to its arsenal In this talk we ll explore Common Table Expressions SQL 99 and how SQL handles recursion breaking the bi dimensional barriers and paving the way to more complex data structures like trees and graphs and how we can replicate features from social networks and recommendation systems We ll also have a look at window functions SQL 2003 and the advanced reporting features they make finally possible The first part of this talk will cover several different techniques to model a tree data structure into a relational database parent child adjacency list model materialized path nested sets nested intervals hybrid models Common Table Expressions Then we ll move one step forward and see how we can model a more complex data structure i e a graph with concrete examples from today s websites Starting from real world examples of social networks and recommendation systems features and with the help of some graph theory this talk will explain how to represent and traverse a graph in the database Finally we will take a look at Window Functions and how they can be useful for data analytics and simple inline aggregations among other things All the examples have been tested on PostgreSQL 8 4 Trees In The Database Advanced data structures View more documents from Lorenzo Alberton Graphs in the database RDBMS in the social networks age PGCon 2011 Ottawa Canada 18 May 2011 Despite the NoSQL movement trying to flag traditional databases as a dying breed the RDBMS keeps evolving and adding new powerful weapons to its arsenal In this talk we ll explore Common Table Expressions SQL 99 and how SQL handles recursion breaking the bi dimensional barriers and paving the way to more complex data structures like trees and graphs and how we can replicate features from social networks and recommendation systems We ll also have a look at window functions SQL 2003 and the advanced reporting features they make finally possible The first part of this talk will cover several different techniques to model a tree data structure into a relational database parent child adjacency list model materialized path nested sets nested intervals hybrid models Common Table Expressions Then we

    Original URL path: http://www.alberton.info/talks (2016-04-23)
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  • Lorenzo Alberton - Donations
    your appreciation for the time I spend maintaining my PEAR packages for the help I give on the PEAR mailing lists and with the articles and tutorials on this website please consider buying me a book or two or making a small donation to a charity of your choice Thank you Lorenzo Alberton Lorenzo has been working with large enterprise UK companies for the past years and is now CTO

    Original URL path: http://www.alberton.info/donate (2016-04-23)
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  • Lorenzo Alberton - About Lorenzo Alberton
    machine learning Lorenzo has been working with large enterprise UK companies for the past 5 years and is now Chief Technical Architect at DataSift where he s helping a highly talented team processing thousands of messages per second In his spare time he likes to travel hike cycle read and play the piano You can read his CV on LinkedIN or reach him here LinkedIn Profile Twitter stream Zend PHP5

    Original URL path: http://www.alberton.info/about (2016-04-23)
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  • Lorenzo Alberton - Articles
    Performance PHP PostgreSQL Profiling Scalability Security SPL SQL Server SQLite Testing Tutorial TYPO3 Windows Zend Framework Buy me a book Articles AJAX PEAR Pager Tutorials Navigation with Pager and AJAX or simple Javascript PHP PEAR JavaScript AJAX Tutorial 3 October 2006 PEAR Pager can generate javascript links and AJAX calls Read how in this new Pager tutorial examples are included Lorenzo Alberton Lorenzo has been working with large enterprise UK

    Original URL path: http://www.alberton.info/articles/filter/tag/AJAX (2016-04-23)
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