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Codetown ::: a software developer's community
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Carol McDonald
- Female
- Jacksonville, Florida
- United States
- Blog Posts (3)
- Discussions (4)
- Events
- Groups (9)
- Photos
- Photo Albums
- Videos
Carol McDonald's Groups
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Community Corral
23 members
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iPhone Development
40 members
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Database SIG
13 members
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JEE Town
28 members
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Spring Town
47 members
Carol McDonald's Discussions
Some Java Concurrency Tips
Started Sep 18, 2009
Java Enterprise Tech Tips: Locking and Concurrency in Java Persistence 2.0
Started Sep 14, 2009
Comparing Tomcat and Glassfish
Started Mar 6, 2009
Gifts Received
Carol McDonald has not received any gifts yet
Carol McDonald's Page
Profile Information
- What are your main interests in software development?
- Java, Web, Ajax, Java EE, Spring, Seam, JPA, Web Services
- Do you have a website?
- http://weblogs.java.net/blog/caroljmcdonald/
- Anything else you'd like to add? Where do you live? (optional!)
- Je parle Francais. Ich kann Deutsch.
Carol McDonald's Blog
movie recommendations with Spark machine learning
Posted on August 4, 2015 at 11:15am 0 Comments 1 Like
Tutorial on Apache Spark, movie recommendations with machine learning
This post discusses building a recommendation model from movie ratings using an iterative algorithm and parallel processing with Apache Spark MLlib.
https://dzone.com/links/parallel-and-iterative-processing-for-machine-lear.html
An Inside Look at the Components of a Recommendation Engine
Posted on April 13, 2015 at 9:14am 1 Comment 0 Likes
Recommendation engines help narrow your choices to those that best meet your particular needs. In this post, we’re going to take a closer look at how all the different components of a recommendation engine work together. We’re going to use collaborative filtering on movie ratings data to recommend movies. The key components are a collaborative filtering algorithm in Apache Mahout to build and train a machine learning model,…
Continuescreencast about MySQL for Developers
Posted on March 30, 2009 at 10:30am 0 Comments 0 Likes
If you are a developer using MySQL, you should learn enough to take advantage of its strengths, because having an understanding of the database can help you develop better-performing applications. This session will talk about MySQL database design and SQL tuning for developers. Some topics include:
* MySQL Storage Engine Architecture
* Schema, the basic foundation of performance
* Think about performance when… Continue
Happy 10th year, JCertif!
Notes
Welcome to Codetown!
Codetown is a social network. It's got blogs, forums, groups, personal pages and more! You might think of Codetown as a funky camper van with lots of compartments for your stuff and a great multimedia system, too! Best of all, Codetown has room for all of your friends.
Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.
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InfoQ Reading List
Cloudflare Introduces Aggregations in R2 SQL for Data Analytics
Cloudflare recently announced support for aggregations in R2 SQL, a new feature that lets developers run SQL queries on data stored in R2. This enhancement expands R2 SQL beyond basic filtering and makes it more useful for analytical workloads without requiring separate data warehouse tools.
By Renato LosioArkType Introduces ArkRegex with Type Safe Regular Expressions
Introducing ArkRegex: a revolutionary drop-in for JavaScript's RegExp that ensures type safety in regular expressions without runtime overhead. Seamlessly integrate with native features like capture groups and receive robust type inference, revolutionizing TypeScript development and eliminating runtime failures. Simplify regex with confidence—experience ArkRegex today!
By Daniel Curtis350PB, Millions of Events, One System: Inside Uber’s Cross-Region Data Lake and Disaster Recovery
Uber’s HiveSync is a sharded, cross-region batch replication system keeping Hive/HDFS data consistent across multiple regions. Handling 5M daily Hive events and 8PB of data replication, it uses event-driven jobs, hybrid RPC and DistCp strategies, DAG-based orchestration, and dynamic sharding, enabling disaster recovery, horizontal scaling, and 99.99% cross-region data accuracy.
By Leela KumiliCloudflare Launches ‘Code Orange: Fail Small’ Resilience Plan After Multiple Global Outages
Cloudflare recently published a detailed resilience initiative called Code Orange: Fail Small, outlining a comprehensive plan to prevent large-scale service disruptions after two major network outages in the past six weeks.
By Craig RisiPresentation: Holistic Engineering: Organic Problem Solving for Complex Evolving Systems
Vanessa Formicola discusses how "invisible" forces shape our code and architecture. She shares patterns like "Cirque du Soleil coding" and "Shared Kitchen Sinks," explaining why technical problems often have social roots. Architects and leaders will learn how to use Social Decision Records (SDRs) and holistic modeling to make the implicit explicit and drive success.
By Vanessa Formicola
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