Building a sudoku game with Kotlin

Hi guys,

Today I will continue the series of posts related to the workshop I attended during the #TechKnowday here in London. This one is to learn Kotlin building a sudoku game. So, basically Ana left available on her Github the initial parts and the solutions.

The instructions with the steps are available here. Below you can find the exercise done in parts:

You can find the first part here:

The second part:

And the third part:


If you are wondering what you have done wrong, you can check the solution for each part below. Don’t cheat, this is for after you have tried the exercise by yourself first:


Her contacts:


Thanks Ana for this workshop !


Machine Learning in IOS apps

Hello guys,

I have been to the #TechKnowday here in London three weeks ago and one of the workshops that I joined was the Machine Learning in IOS Apps. So, in the end we had a face recognition app which showed what was the emotion of the person, if the picture was someone smiling than it should show the smile emoticon and so on.

You can find the slides and follow the explanations here:

Then you will need to clone the repository with the project and download the Sentiment Polarity model here

Step 1:

In the ViewController.swift you will need to create the face detection request, the request handler and the face detection action. So you will have something like this:


Step 2:

In the SentimentAnalysisService.swift you will need to create the model using the SentimentPolarity, pass the linguistic tagger options and create the input to receive and interpret the input with the sentiment. You can add, remove or change the sentiments in the Sentiment.swift class, but don’t forget to change in this class the sentiment as well.



So, after you build, run the app and type the name of the sentiment with a space in the end, so you should have something like this:


Thanks Vasilica for this workshop !