https://www.ravenpack.com/blog/asset-manager-alternative-data/?utm_campaign=amaltdat&utm_medium=Earned&utm_source=Tabb&utm_content=&utm_term= RavenPack- "Other findings from the survey showed alternative data use had increased from the previous year, and that 64% of asset managers were using multiple sources, with 20% using more than 10 data sources. ... In terms of application, the most common approach - with 42% saying they adopted it - was to incorporate the data into ‘supervised algorithms’ where the final decision was discretionary. ... 22% of respondents used the data in a “semi-supervised” fashion, whilst “reinforcement and deep learning are each utilized by 19% of surveyed managers”, said the survey."