We tried the WorldTripLogger one day before MrHicks46 began his world trip on his motorcycle. We have noticed that the vibrations will be a little bit of a problem because some pictures have some wrong lines in the image, but most of the pictures are very good!. One measure of WorldTripLogger has the following data: DateTime: [...]

If you have developed an Android app with video streaming, I’m sure you notice that Android use a pre-load of video buffer that fills in 10 seconds. This delay is hardcode in the source code. It’s very hard create a real time app to show video with this delay. There are several solutions out of [...]

Polynomial Regression is a form of linear regression model but fits a non-linear relationship between the value X and Y. Basically we have to add new features to the final equation. But what features? It’s simple we can add the X1 feature as new feature: X1^2 or X1^3. If we have some input features (X1,X2,X3) [...]

I need to record some screencast with audio for my online classes of Android. It’s a good way to explain all the topics about programming and android development. Slides, exercises, moodle and screencast is a cool combination to create high-quality online courses. Also I use a digital tablet to write in the desktop/slides to clarify [...]

I continue working with machine learning algorithms. In a previous post I talked about linear regression with one variable and I described different algorithms to predict hypothesis. In this case, I’m playing with linear regression but, with some features. Linear regression only have one input feature and one output feature. For example, you can predict the [...]

Since two months ago I’m researching about machine learning and its algorithms. The goal is get a good unsupervised and clustering algorithm to analyze every android applications and predict what application you want to install or use in a particular time. The first step is learn and understand the theory of machine learning. For this,  I began [...]