It Depends — A dependency management app How often have you had a software deploy that broke something else you didn’t know depended on the system being upgraded? Or took a server down that you didn’t realize another system was using? Or had a production issue and realized that literally the only person who knew anything about that system was out on vacation? Remembering dependency chains, especially if they are a few steps removed, is no easy task.
Online Learning: A Bachelor's Level Computer Science Program Curriculum (Updated) Introduction [Update: See also the follow-up post to this piece, An Intensive Bachelor's Level Computer Science Curriculum Program.] A few months back we took an in-depth look at MIT’s free online Introduction to Computer Science course, and laid out a self-study time table to complete the class within four months, along with a companion post providing learning benchmarks to chart your progress. In the present article, I'll step back and take a much more broad look at com-sci course offerings available for free on the internet, in order to answer a deceptively straightforward question: is it possible to complete the equivalent of a college bachelor’s degree in computer science through college and university courses that are freely available online? And if so, how does one do so?
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Map / Reduce – A visual explanation Map/Reduce is a term commonly thrown about these days, in essence, it is just a way to take a big task and divide it into discrete tasks that can be done in parallel. A common use case for Map/Reduce is in document database, which is why I found myself thinking deeply about this. Let us say that we have a set of documents with the following form: And we want to answer a question over more than a single document. That sort of operation requires us to use aggregation, and over large amount of data, that is best done using Map/Reduce, to split the work.
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Demystifying the Older Adult Student Segment Demystifying the Older Adult Student Segment Older learners have some very specific, but not necessarily well-understood, barriers to accessibility which institutions must accommodate for in order to be able to better serve this growing cohort of learners. Photo by the Metropolitan Transportation Authority of the State of New York.