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Engineering

DynamoDB - Cost reduction of scan() method

DynamoDB - Cost reduction of scan() method

In our company, some time ago we started receiving alarms about exceeding the quota for one of the tables in Amazon DynamoDB. This caused alerts in other parts of the system as the table is used by many different processes.

Piotr Mucha
Piotr Mucha
Engineering
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
Engineering
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
Engineering
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
Engineering