Rui Machado

Rui Machado

Co-founder @


Rui Machado academic background has a graduate degree in Information Systems, a post-graduation in Business Intelligence and a Master degree in Data Analytics. He is a hands-on information systems manager, developer and an entrepreneur, highly oriented for innovative solutions, always looking for technical and business solutions to fix all sort of problems. Over six years of experience in the design and implementation of business intelligence and analytics solutions, leadership and defining the vision of technology-oriented teams. Professionally he has been collaborating with companies from industries such as healthcare, e-commerce, and logistics, architecting and implementing solutions to solve data and decision support related problems. He is currently working as Data Scientist at Critical Software and is the Co-founder of the artificial intelligence company

Deep learning for Fashion - Developing an image visual similarity model

Deep learning is a very trendy topic now, showing high accuracy in image-based systems that can go from image segmentation to object detection and image retrieval. Because of this, multiple researchers and companies have been building and sharing work in the community, including pre-trained convolutional neural networks, available for public use. This work follows the trend and delivers an experimental study using deep learning for building a visually similar image retrieval application, comparing three different convolutional neural architectures for feature extraction and six distance indexes for similarity calculation in a real-world image retrieval problem, using real data from a fashion e-commerce platform from Morocco. After testing all the different combinations, we can conclude that for this dataset, Vgg19 combined with a correlation coefficient for similarity calculation is the tuple that best maximizes the similarity between a search image and its retrieved neighbors.