The Rank Group and Rank España in Spain (10 bingo clubs). Rank is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. The company was formed to acquire the business interests of the Rank Organisation, which itself was formed out of the business interests of its founder, J. Arthur Rank. Until the start of the 21st century, the group still had a tremendous amount of leisure holdings; however, as the decade progressed it divested these interests, beginning with Pinewood Studios and the Odeon cinema chain. It also shed its engineering interests, such as its share in Rank
Learning to rank search engine exclusively relies on machine-learned ranking. Cuil's CEO, Tom Costello, suggests that they prefer hand-built models because they can outperform machine-learned models when measured against metrics like click-through rate or time on landing page, which is because machine-learned models "learn what people say they like, not what people actually like". In January 2017 the technology was included in the open source search engine Apache Solr™, thus making machine learned search rank widely accessible also for enterprise search. Learning to rank Learning to rank or machine-learned ranking (MLR) is the application of machine learning, typically supervised, semi-supervised or reinforcement learning,