Počas zimného semestra som sa vrámci semestrálnej práce venovala riadeniu laboratórneho inverzného kyvadla. Prácu by som rozdelila na 2 časti a to, riadenie uhla otočenia kyvadla pomocou viacerých riadiacich algoritmov a návrhu riadenia pre účely tzv. swing-up kyvadla. Pod pojmom inverzné kyvadlo sa skrýva úloha, ktorú každý z nás sám Read more
Určite každý z vás si nedávno mohol prečítať na internete mnoho článkov o umelej inteligencii Facebooku, kde nastal problém, keď si dvaja boti vytvorili svoj vlastný jazyk, systém skratiek a prestali používať angličtinu. V skratke išlo o to, že tieto dva boti dostali za úlohu sa dohodnúť, ako si rozdelia Read more
Finally, the last classifier. Will it be the best one at the end? Yes! Previous SVM classification will be replaced by a discriminant analysis model. Discriminant analysis in short: its principle is very similar to the naive Bayes approach – probabilities, statistics and optimization mixed up together. The approach is Read more
Our journey to find the best classifier is not yet at the end. The last introduced classifier was the naive Bayes and now the next one – support vector machine itself – has a difficult task to win this competition. The naive classifier set a high bar. Spoiler: the support Read more
Same task, but third classification algorithm – naive Bayes. I was looking forward, because a MATLAB script was already written and I naively thought my only work is to replace one function name (fitcknn to fitcnb). My good mood lasted until I realized that optimization of hyperparameters did not have Read more
Rád by som predstavil aspoň malú časť z projektov, na ktorých môžu pracovať študenti na Ústave informatizácie, automatizácie a matematiky. Bez ohľadu na to, či veríme alebo neveríme v nastupujúcu priemyselnú revolúciu obsiahnutú v koncepte Industry 4.0, faktom zostáva, že pokrok nezastavíme. Globálny nástup novej generácie IP adries verzie 6 Read more
The aim of this project is still the same, only a classification algorithm will be different. No more trees anymore. They will be replaced by nearest neighbors, but the method is the same as previously. K-nearest neighbors (k-NN) is a simple classification algorithm, which assign a class to an item Read more
Warning: this story has no happy ending. In the previous post I promised that we will grow better trees. For these kinds of problems optimization is used. In MATLAB, function fitctree which returns fitted classification tree can have an additional argument ‘OptimizeHyperparameters’ with value ‘auto’ or ‘all’ (and also ‘none’, Read more
In the introductory post, I explained why artificial intelligence and machine learning matters. Leave out sci-fi machines aside, we have to start somewhere – for example with trees. Goals have been set: we want to predict a class of wine based on its properties. We will solve this task using Read more
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