Lorenzo Vainigli

Software developer, passionate about programming

Post archive

Voice recordings for the diagnosis of COVID-19 with Deep Convolutional Neural Networks
11 April 2021
  8'     85
In this article I describe what was my project for the master’s thesis in Computer Science at the University of Bologna, in which I was involved in using the technologies of Deep Convolutional Neural Networks to create models of machine learning that were able to detect cases of COVID-19 by analyzing voice recordings. In the […]
COVID-19 in Italy: an Interactive Map
2 March 2020
  1'     636
Data published by the Ministry of Health displayed on a national map and on a graph that shows the evolution of Coronavirus infection cases In these days the Ministry of Health is reporting daily data on the number of people who tested positive for COVID-19. On the Johns Hopkins University Map that traces the cases […]
Classification of Reviews with Yelp Open Dataset
6 October 2020
  4'     166
Yelp Open Dataset is a collection of data concerning users who write reviews on businesses belonging to different commercial categories (e.g. restaurants, car rental, etc. …). Thanks to this database I was able to realize a model based on a neural network for the automatic classification of reviews using natural language processing and machine learning […]
Facebook Hacker Cup 2020 Qualification Round Solutions
29 July 2020
  3'     489
What is the Facebook Hacker Cup? The Facebook Hacker Cup is a competition for programmers promoted by Facebook worldwide. The aim of the competition is to find the best programmers in the world to whom to pay cash prizes. The final winner will also win the cup. The problems proposed during the Facebook Hacker Cup […]
A Little Blockchain in Erlang
8 June 2020
  1'     87
Erlang is one of the functional programming languages that allows you to build concurrent programs in a relatively simple way; its actor-based paradigm offers primitives to create processes and make them communicate with each other in a way that other languages do not. Another peculiarity of Erlang, probably the most important one, is the possibility […]
Let’s prepare a lot of dishes with Cooking Fever!
20 March 2020
  2'     303
Cooking Fever is a fun game in which you have to prepare dishes to serve to customers. The mechanism is really very simple: you are behind a counter with different ingredients and cooking tools; customers come, in turn, in front of us and show us what they want. Our goal is to serve them as […]
Three Word-Sense Disambiguation Algorithms
24 January 2020
  3'     392
Word sense disambiguation (w.s.d.) is that part of natural language processing that deals with attributing to a word (token) its meaning in the context in which it appears. In this article there are presented three probabilistic algorithms to solve this problem, together with their implementation in Python. The algorithms are: Naive Bayes; Lesk algorithm; EM […]
Shaping a three-dimensional world
5 January 2020
  3'     33
Years ago, I’d say about ten years ago, I tried to approach the 3D graphics environment to discover something new. I was able to make a few small creations, but nothing that excited me much. I liked the results, but I probably thought the procedures were too difficult and for some reason I abandoned this […]
The new website of Pro Loco Sovicille
17 October 2019
  3'     41
In recent months I have been working on the design and implementation of a new site for the Pro Loco of Sovicille, a non-profit association that aims to enhance the places, traditions and resources of the territory of the municipality of Sovicille, Siena (Italy), promoting initiatives among the locals and welcoming tourists. In a first […]
Advanced Pagination with Bootstrap
27 August 2019
  3'     350
Among the many components of Bootstrap we can find one to build a block of page indexes to implement a pagination. Typically this component is used when you have a list of elements that, for one reason or another, can not be shown all in one page. In this case, as with search engines, several […]
Disable Google Analytics only for site’s administrators
28 July 2019
  1'     19
Services used to track visitors to your site, such as Google Analytics, are essential tools to get an idea of the performance of your web pages. The problem that arises is that administrators, content creators or any other profile that manages the content of a site are among the most active users. In the long […]
The code that took us beyond our frontiers
20 July 2019
  5'     33
Half a century after Neil Armstrong’s venture, the source codes of Apollo 11 have been published online Today is exactly 50 years since the day the first man set foot on the Moon, 20 July 1969. “That’s one small step for man, one giant leap for mankind” is the phrase that continues to echo in […]