New data analysis competitions
- Google Cloud & YouTube-8M Video Understanding Challenge on Kaggle. This competition comes with $100,000 in prizes and credits for the Google Cloud ML platform.
Beyond providing support for police operations, the OPSOC also monitors the social media activity of protesters during demonstrations.
Bottom line: the earlier you understand that all your social media postings are public, regardless of the access level you have set up, the better.
Now, a team at the University of North Carolina, Chapel Hill, has detected brain growth changes linked to autism in children as young as 6 months old. And it piqued our interest because a deep-learning algorithm was able to use that data to predict whether a child at high-risk of autism would be diagnosed with the disorder at 24 months.
The algorithm correctly predicted the eventual diagnosis in high-risk children with 81 percent accuracy and 88 percent sensitivity. That's pretty damn good compared with behavioral questionnaires, which yield information that leads to early autism diagnoses (at around 12 months old) that are just 50 percent accurate.
The Truth About The Trump Data Team That People Are Freaking Out About. Another article disputing the claim that Cambridge Analytica basically performed black magic during the campaign. We already had a few of these links in Data Links #89.
But interviews with 13 former employees, campaign staffers, and executives at other Republican consulting firms who have seen Cambridge Analytica's work suggest that its psychological approach was not actually used by the Trump campaign and, furthermore, the company has never provided evidence that it even works. Rather than a sinister breakthrough in political technology, the Cambridge Analytica story appears to be part of the traditional contest among consultants on a winning political campaign to get their share of credit — and win future clients.
Looking across various times and locations, the researchers saw that communities undergoing a demographic change due to immigration clearly don't experience significant increases in crime. In fact, even though these communities may feel like they were in flux due to population changes, crime was either stable or declined in communities that were incorporating many immigrants.
The research project, called Detox, began last year and used machine learning methods to flag comments that contain personal attacks. The researchers looked at 14 years of Wikipedia comments for patterns in abusive behaviour. Detox is part of Jigsaw's Conversation AI project, which aims to build open-source AI tools for web forums and social media platforms to use in the fight against online harassment.
Data Links is a periodic blog post published on Sundays (specific time may vary) which contains interesting links about data science, machine learning and related topics. You can subscribe to it using the general blog RSS feed or this one, which only contains these articles, if you are not interested in other things I might publish.
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