## Can smart phone be cheap and powerful in one place?

We are used to stick to well known smart phone brands. Of course they are great in many ways but not the price. The more features the device have the more expensive it is. But here are more and more facts showing on the Internet that high brand phones are not that much better than other less expensive.

Smaller manufacturers in order to compete usually put more features for less price. These can be more powerful processor, more RAM and other hardware. So maybe it is better to stop chasing brands and get really what you are looking for. Continue reading

## 5 Things You Didn’t Know About a Mobile Signal Booster

When you can’t talk on the phone without being interrupted inside your house, when you have to run outside the office to get a Skype message, it’s still not a dead end. People use mobile signal boosters to combat this kind of signal troubles. However, all they know about this equipment is that in most cases it’s able to increase bars but nor more. As a result, the notion of a signal booster gets overgrown with prejudices. We decided to make top 5 things you have hardly ever heard about a mobile signal booster, so that you can check what you really know about this kind of equipment.  As an example we use Hiboost mobile signal repeater, produced by Huaptec.

• #### GSM Boosters won’t work if there’s no signal outside.

We bet you were always sure that a mobile signal booster would improve a signal anyway and how well it would do it fully depends on the quality of the booster. You’re partly right but that is not the whole story. If you can’t pick up the signal outside your house at all, it’s strong possibility that you won’t be able to improve cellular signal. It’s connected with the booster working principle. In fact the device doesn’t literally amplify the signal, but repeats good signal from the outside and spread it inside the area. That’s why more or less good signal reception outside the building (at least 2-3 bars) is obligatory for future booster users. Continue reading

## Replace your TV with UhAPPy U20 LCD Projector

Normally we are trying to expand your existing TV functionality with smart TV boxes that are fun of course, but in other hand you are still limited to TV size and location where you are going to have fun. Sometimes you may want to watch movies in different room or even take out to some unusual place. In this case you may want to consider a projector, which gives mobility, large screen and tons of features.

We are talking about smart projector which doesn’t need any host device to send video stream. The projector itself runs Android which is able to produce content on your wall by itself. Continue reading

## Beelink MiniMX III TV Box with quad core 64-bit Amlogic S905

There are many TV boxes to choose and it may seem that the more expensive are better. This is not always a truth. Sometimes cheaper ones can give all you may need. This time lets take a look at Beelink MiniMX III TV Box which uses the latest Android 5.1 operating system running on 64-bit quad core Amlogic S905 processor.

Beelink MiniMX III TV Box is capable of running any Android app on your TV flawlessly since it features powerful processor, 2GB DDR3 of RAM. It already comes with 16GB of eMMC ROM which can be extended with 32GB flash storage. It is rich in connectivity options like Buetooth 4.0, 1GB Ethernet, WiFi, HDMI 2.0 supporting 4K video output, 2xUSB 2.0, IR for remote. Continue reading

## Math and probability behind the online casinos software

Understanding the math and probability behind the online casinos software can help a lot of people make much more informed decisions when it comes to which games they should play. Some people are interested in playing real money casino games strictly for the thrill of it, and in fact most people are going to fall into that category. Other people are going to see the games in a practical light as well as a recreational light, and they’re going to want to earn some money off of the games. These people are going to need to work even harder when it comes to understanding the math and probability behind the online casinos software.

## Linear regression with multiple features

Single feature linear regression is really simple. All you need is to find function that fits training data best. It is also easy to plot data and learned curve. But in reality regression analysis is based on multiple features. So in most cases we cannot imagine the multidimensional space where data could be plotted. We need to rely on methods we use. You have to feel comfortable with linear algebra where matrices and vectors are used. If previously we had one feature (temperature) now we need to introduce more of them. So we need to expand hypothesis to accept more features. From now and later on instead of output y we are gonna use h(x) notation:

$h_{\theta }(x) = \theta_{0} + \theta_{1}x_{1}+..+ \theta_{n}x_{n}$

As you can see with more variables (features) we also end up with more parameters θ that has to be learned. Before we move lets find suitable data that we could use for building machine learning algorithm.

## The data set

Again we are going to use data set college cengage. This time we select health data set with several variables.

The data (X1, X2, X3, X4, X5) are by city.

X1 = death rate per 1000 residents

X2 = doctor availability per 100,000 residents

X3 = hospital availability per 100,000 residents

X4 = annual per capita income in thousands of dollars

X5 = population density people per square mile

Reference: Life In America’s Small Cities, by G.S. Thomas

Here we take variables X2, X3, X4, X5 as input and X1 as output. And then we build a linear regression model where we are going to predict death rate per 1000 residents. Continue reading