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Deep learning

Word2vec: Loss Function

Word2vec: Loss Function

The difference between probabilistic output vectors and target vectors is crucial for the network to learn. How can you measure this difference? What does the learning process look like? How do we indicate when our model is smart enough?

Marcin Lewek
Marcin Lewek
Artificial intelligence
Word2vec w pigułce

Word2vec w pigułce

Word2vec to metoda uczenia maszynowego mająca na celu stworzenie modelu językowego opartego na idei głębokiego uczenia (Deep Learning), jednakże sieć neuronowa wykorzystywana w tym przypadku jest stosunkowo płytka (w jej skład wchodzi zaledwie jedna warstwa ukryta).

Marcin Lewek
Marcin Lewek
Deep learning
Stylista rozszerzony

Stylista rozszerzony

Inteligentne rekomendacje to wiecznie żywy trend konieczny w przypadku tych działań handlu elektronicznego, które skierowane są na stworzenie przewagi konkurencyjnej. Konieczne, ale czy w każdej branży? Takiej, gdzie wybory konsumenckie to wynik niemierzalnych czynników, jak na przykład 'fashion'?

Marcin Lewek
Marcin Lewek
Artificial intelligence
Eis a Sua Máquina de Vendas

Eis a Sua Máquina de Vendas

Um aplicativo de IA pergunta ao usuário em qual categoria de produto ele está interessado (exemplo: feminina/masculina/infantil) e exibe os produtos mais vendidos dessa categoria. Então, com cada ação do usuário, a máquina conhece suas expectativas e exibe ofertas personalizadas.

Andre Floriano
Andre Floriano
Artificial intelligence
Behold the Marketing Machine

Behold the Marketing Machine

An AI application asks the user what product category he is interested in (i.e. women/men/kids) and displays this category's bestsellers. Then, with each user's on-site activity, the machine knows his expectations and displays customized offers.

Andre Floriano
Andre Floriano
Artificial intelligence
To seek is to speak. Are conversation and search engines, in fact, the same thing?

To seek is to speak. Are conversation and search engines, in fact, the same thing?

eCommerce customers usually don't get excited about search engines in online stores. They treat them as something wholly finished, complete. This is a shame, as they are in constant development, yet consumers alienated by them years ago have much higher expectations.

Marcin Lewek
Marcin Lewek
Artificial intelligence
Word2vec: The Skip-Gram Model

Word2vec: The Skip-Gram Model

People understand words with ease (usually). It's a bit harder for computers, but we can represent words with numbers to make them comprehensive. Not just any numbers, but vectors. Surprisingly, it's a common language for us, and that can lead to quite impressive things.

Marcin Lewek
Marcin Lewek
Tutorials & Guides
Word2vec Explained

Word2vec Explained

Word2Vec is a Machine Learning method of building a language model based on Deep Learning ideas; however, a neural network that is used here is rather shallow (consists of only one hidden layer).

Marcin Lewek
Marcin Lewek
Tutorials & Guides