Some data about the sales of personal protective equipment during the covid-19 pandemic (on Ebay).

According to a CNN news dated March 19, 2020, Amazon has delivered more than 100 million pieces of protective gear to front line workers and governments during the coronavirus pandemic. But what about non-frontline workers?

While the virus was quickly spreading worldwide, people have started looking for ways to buy personal protective equipment (face masks, respirators, n95 masks) and — I believe it happened pretty much everywhere — during the initial stage of the pandemic some had some troubles finding PPEs in the stores. …


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Gli ultimi sondaggi sulle elezioni amministrative per il rinnovo della giunta capitolina sono stati una sorpresa per molti. Chi pensava (o sperava) che il Sindaco Raggi partisse sconfitto ha scoperto che invece l’amministratore grillino ha ancora le sue carte da giocarsi, con un 20–25% dei romani favorevole alla ricandidatura.

Allora ho cercato di capire se dall’analisi del profilo Facebook di Raggi sia possibile, e con quali margini di errore, ottenere qualche indicazione.

Visto che recentemente ho iniziato — anche se con un certo scetticismo, lo ammetto — a studiare metodi per analizzare il “sentiment”, ho deciso di utilizzare questo approccio applicando diversi algoritmi di machine learning agli oltre 740mila commenti lasciati sul profilo del Sindaco dal luglio 2016 al giugno 2020. …


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In this previous post I showed how easy it is to set up an Elasticsearch instance to store facial encodings and build your own facial recognition database.

In this blog I will add a very interesting feature based on the same architecture. So, If you don’t know how to set up Elasticsearch and store face encodings for further analysis, go back and set everything up!

The previous post showed how you can search for a plausible match in the database starting from a known picture. Basically, this is known as supervised learning. Conceptually, it is the most simple task. …

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