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Ayende Rahien10/30/14
1588 views
0 replies

Modeling Exercise: The Grocery Store's Checkout Model

The grocery store checkout model exercise deals with the following scenario. You have a customer that is scanning products in a self-checkout lane, and you need to process the order. The end result might be a Git repository that allows you to see the full approach that was used and how it changed over time. Ideally, you should see a lot of churn in the beginning, but then you’ll have a lot less work to do as your architecture settles down.

Mike Bushong10/30/14
1441 views
0 replies

Outcome bias and the psychology that prevents sustained success

Ultimately, anyone in the tech space is going to have to make a number of product and market decisions. But make sure you apply the same logic to your personal career decisions as well. It is easy to celebrate or lament a particular decision based on the outcome. But understand that the best you can ever do is make the best possible decision based on the information you have at the time.

John Walter10/29/14
4394 views
0 replies

Dev of the Week: Michael Hunger

Every week here and in our newsletter, we feature a new developer/blogger from the DZone community to catch up and find out what he or she is working on now and what's coming next. This week we're talking to Michael Hunger, Neo4j Developer Advocate and author of our upcoming Neo4j Refcard.

Troy Miles10/29/14
1000 views
0 replies

CodePen, AngularJS, and Jasmine!

Online Web editors, like JSbin, plnkr, and CodePen, are awesome. They allow you to easily work on an idea without all of the muss and fuss of having to spin up a server. You can also share the idea with friends or the entire Internet easily.

Mark Needham10/29/14
1781 views
0 replies

Python: Converting a date string to timestamp

I’ve been playing around with Python over the last few days while cleaning up a data set and one thing I wanted to do was translate date strings into a timestamp.

Juri Strumpflohner10/29/14
1820 views
0 replies

Static code analysis for free

Fortunately JavaScript has a huge community behind which releases new tooling on a daily basis. Plato gives you static JavaScript analysis and reporting for free. It is as simple as installing it from npm

John Walter10/29/14
5589 views
0 replies

The Best of DZone: Oct. 22 - Oct. 29

If you missed anything on DZone this week, now's your chance to catch up! This week's best include navigating the DSL Jungle, a look at Google Analytics, a tutorial for updating your legacy code, and more.

Rob J Hyndman10/28/14
1867 views
0 replies

HTS with Regressors

The hts pack­age for R allows for fore­cast­ing hier­ar­chi­cal and grouped time series data. The idea is to gen­er­ate fore­casts for all series at all lev­els of aggre­ga­tion with­out impos­ing the aggre­ga­tion con­straints, and then to rec­on­cile the fore­casts so they sat­isfy the aggre­ga­tion con­straints.

Ayende Rahien10/28/14
2757 views
2 replies

Career Planning: Where do old devs go to?

What doesn’t make sense is the ratio that I’m seeing. Where are the people who have been doing software development for decades?

Arthur Charpentier10/27/14
2125 views
0 replies

Removing Uncited References in a Tex File (with R)

Usually, once you have revised the paper, some references were added, others were dropped. But you need to spend some time to check that all references are actually mentioned in the paper. I wanted to work on that manually this week-end, but @3wen suggested to write a simple R function to scan the tex f file (as well as the aux file actually) to remove uncited references.

Troy Hunt10/26/14
879 views
0 replies

Measure, optimise then measure again: further refining "Have I been pwned?"

As I’ve written in the past, I put an awful lot of effort into making Have I been pwned? (HIBP) fast. Not just a bit fast, blisteringly fast and that includes when it’s under a huge amount of load. But there was something bugging me with the site when it came to performance and it was this:

Antonio Santiago10/26/14
2774 views
0 replies

7 reasons to use Yeoman's angular-fullstack generator

For my next project and, after looking for candidates and reading some hundreds of lines of documentation, I finally choose to work with the so called MEAN stack: mongodb, express, angular and node.

Giuseppe Vettigli10/26/14
2376 views
0 replies

Andrews Curves

Andrews curves are a method for visualizing multidimensional data by mapping each observation onto a function. It has been shown the Andrews curves are able to preserve means, distance (up to a constant) and variances. Which means that Andrews curves that are represented by functions close together suggest that the corresponding data points will also be close together.

David Gelperin10/26/14
5070 views
1 replies

Prudent Agile

Today's Agile is reckless. Consider a prudent alternative.

John Cook10/26/14
5517 views
1 replies

Experts vs Professionals

Working with professionals can be a joy. Not only can they solve your problem, they may help you see what problem you should solve. Experts, however, are not always so pleasant to work with.