Mining of Massive Datasets
Downloadable textbook about Mining of Massive Datasets by Jure Leskovec, Anand Rajaraman, Jeff Ullman.
- Link to site: Mining of Massive Datasets
Debugbar For Ruby on Rails
This is super useful for rails apps. Will it work for other frameworks like Sinatra? I haven’t tried this yet but it looks promising.
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Web site excerpt: Rails debugging dev tools for faster development. Inspect your request details (queries, logs, cache, jobs and more).
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Link to site: Debugbar For Ruby on Rails
ROS opencv camera driver that uses cv::VideoCapture
Ok this is also for me to remember important links! Here is the source code for the opencv ROS support for the camera. I now prefer it over Raspicam.
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Web site excerpt: ROS opencv camera driver that uses cv::VideoCapture - OTL/cv_camera
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Link to site: ROS opencv camera driver that uses cv::VideoCapture
Raspi cam documentation
Details on running various tools to collect photos and videos from the command line running on a Raspberry Pi.
- Link to site: Raspi cam documentation
Solution to the Git problem of loose object is corrupt
Very useful if this happens to you! Worked like a charm for me. Magic.
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Web site excerpt: This post documents how we can fix the problem of loose object is corrupt in git.
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Link to site: Solution to the Git problem of loose object is corrupt
An Introduction to LiteStack for Ruby on Rails | AppSignal Blog
A multi part series on the so called LiteStack. People seem to be coming back around to using SQLite for their production databases. This was the way it was a few years ago but then everyone decided that SQLite was a toy and we should use Postgres. Yes, it was a little more complicated and could cost a little more but we were clever enough to figure it out. Well I like this trend to ditching unnecessary complexity (“you are not Facebook”)
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Web site excerpt: In the first part of this series, we'll set up an example Rails application and introduce the basics of LiteStack.
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Link to site: An Introduction to LiteStack for Ruby on Rails | AppSignal Blog
Everything you need to know about GIT
Yet another beginner explanation of git!
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Web site excerpt: I'm sure you can imagine the importance of versioning code, so that we can revert changes and recover...
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Link to site: Everything you need to know about GIT
Cube Pose Tracking using OpenCV and ArUco in ROS: A Step-by-Step Guide
I am looking for a substitute for fideucials with ROS. I have used raspicam_node from Ubiquity Robotics and it does work but it took a lot of playing. I wonder if opencv would work better.
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Web site excerpt: Introduction
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Link to site: Cube Pose Tracking using OpenCV and ArUco in ROS: A Step-by-Step Guide
Event-Driven Architecture Fundamentals and Common Pitfalls (and How to Avoid Them)
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A thorough review of event driven architectures. Lots of actionable ideas and rules of thumb. Even thought this is from a vendor plugging their wares, there is a lot to learn here!
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Web site excerpt: Learn the fundamentals of event-driven architecture (EDA), message elements and patterns, event design patterns, the common EDA pitfalls and how to avoid them.
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Link to site: Event-Driven Architecture Fundamentals and Common Pitfalls (and How to Avoid Them)
How to Detect Objects in Real-Time Using OpenCV and Python
Useful information for building clever robots that can locate boxes to stack up!
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Web site excerpt: For the uninitiated, Real-Time Object Detection might sound quite a mouthful. However, with a few awesome libraries at hand, the job…
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Link to site: How to Detect Objects in Real-Time Using OpenCV and Python