From June 2020, I will no longer be using Medium to publish new articles. Please, visit my personal blog if you want to continue to read my articles: https://vallant.in.

Image source: https://pixabay.com/photos/soap-bubble-colorful-ball-824558/

Brands circulation is the art of identifying brands that are - in a certain way -complementary or that attract the same customer profile. It measures he probability of buying brand A based on the preference of a client for the brands C and D.

The concept assumes that different fashion brands are connected by the perception that the consumer has of them. …


Vamos nos conectar? Será um prazer falar sobre Machine Learning aplicado ao mundo Fashion. Envie uma mensagem para https://www.linkedin.com/in/limavallantin e não deixe de ouvir Fashion Hackers, un podcast para falar sobre moda e tecnologia. Este artigo também está disponível em Inglês

Eu não sou fã do Instagram, mas parte do meu trabalho é tentar interpretar a moda do ponto de vista do Machine Learning. O que significa que tenho que ver fotos das pessoas e tentar entender o mercado da moda.

Além das fotos tradicionais do tipo “olhe para minha roupa/veja como eu me visto”, o Instagram também é um…


From June 2020, I will no longer be using Medium to publish new stories. Please, visit my personal blog if you want to continue to read my articles: https://vallant.in.

I am not an Instagram lover, but part of my work is try to interpret fashion from a Machine Learning standpoint. Which means I have to look at people’s pictures and try to understand the fashion market.

In additional to the traditional “look at my outfit” pictures, Instagram is also a big marketplace where fashion professionals try to sell their products. …


From June 2020, I will no longer be using Medium to publish new stories. Please, visit my personal blog if you want to continue to read my articles: https://vallant.in.ntin.

There’s a lot of hype about object detection. Computer vision has become the new quest when someone talks about machine learning and AI. As you may know, I develop mostly for the (sustainable) fashion market and everything that’s image related in Fashion is gold.

Fashion is starting to discover Machine Learning potential and it’s possible today to find Kaggle competitions and Hackathons focused on this market only.

No need to say…


From June 2020, I will no longer be using Medium to publish new stories. Please, visit my personal blog if you want to continue to read my articles: https://vallant.in.

Buying the right item at the right moment is a problem for many online retailers, but this becomes a bigger problem when we talk about fashion. Fashion products usually come with a short expiring date and buying too much of an item that won’t sell means loss of money.

Today, instead of talking of the technical side of Machine Learning, I have decided to talk about a project for which I…


From June 2020, I will no longer be using Medium to publish new stories. Please, visit my personal blog if you want to continue to read my articles: https://vallant.in.

Have you ever started a sentiment analysis or other text classification task only to see that you are not getting good results? The list of possible problems to look into is long, but there are two aspects that you may be underlooking and overlooking in this order.

The first aspect is the quality of the labels of your training data set, while the second is the model itself. We tend to…


From June 2020, I will no longer be using Medium to publish new stories. Please, visit my personal blog if you want to continue to read my articles: https://vallant.in.

In a lot of tutorials about Machine Learning applied to text, you may read that removing stop words is a necessary pre-processing step. Apparently, removing stop words is not only necessary, but is also a must do. But this is not always true. Let’s see why.

What are stop words

The definition of what’s a stop word may vary. You may consider a stop word a word that has high frequency on a corpus. …


From June 2020, I will no longer be using Medium to publish new stories. Please, visit my personal blog if you want to continue to read my articles: https://vallant.in.

Christmas is coming and with it, the uncontrollable wish to spend money buying your friends and family gifts. But, what to buy? What if a bot could tell you what to give based on the other person’s personality?

When learning machine learning, working on small projects is always a good idea to get a grasp of the main concepts. …


From June 2020, I will no longer be using Medium to publish new stories. Please, visit my personal blog if you want to continue to read my articles: https://vallant.in.

spaCy is a great tool for NLP. The open source library is free, fast and easy to use. spaCy has also great features like the fact that it uses non-destructive tokenisation and how it supports a lot of languages. But we know how hard is to work with other languages than English when doing NLP. …


From June 2020, I will no longer be using Medium to publish new stories. Please, visit my personal blog if you want to continue to read my articles: https://vallant.in.

If you are interested by the Natural Language Processing field like me, you should have heard about Natural Language Understanding (NLU). NLU is so important today because it gives power to computers to understand commands given by humans using natural language.

This is a field with a very growing interest, but also, very hard to solve. Today, computers are still very limited on what they can understand, but we are getting…

Lima Vallantin

Data scientist working on solutions for sustainable life. Let’s talk about Machine Learning and life purpose. Message me! | linkedin.com/in/limavallantin/

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store