Qlrv54ypfaai8u6vivkw
Meet up

Big-O December Meet-up with Andrew Clegg & John Graham Cummings

Wednesday, 18th December at Skills Matter, London

This meetup was organised by The London Big-O Meetup in December 2013

Join The London Big-O Meetup on Wednesday December 18th for two exciting talks. This month John Graham Cummings talks Rolling Hashes and Compression Algorithms, we also hear from Andrew Clegg on Scaling up k-nearest neighbours classification

Rolling Hashes and Compression Algorithms

Rolling hashes are fast to compute and can be used to identify 'similar' strings in blocks of data. This talk will look at some uses of rolling hashes for string comparison and compression focussing on the rsync protocol, a spam filter, and a delta compression technique.

John Graham-Cumming

John Graham-Cumming is a computer programmer and author. He studied mathematics and computation at Oxford and stayed for a doctorate in computer security. As a programmer he has worked in Silicon Valley and New York, the UK, Germany and France and cu

Scaling up k-nearest neighbours classification

This talk will introduce k-nearest neighbours, describe its performance characteristics, and discuss some tricks to speed it up on differentkinds of data -- and how to apply them in a production setting.

Andrew Clegg

Andrew is Director of Learner Analytics & Data Science at Pearson, where he applies machine learning, statistical analysis and data visualization techniques to the challenges of 21st century education.

Attending Members

Sorry, no member has joined this event so far.

Overview

Join The London Big-O Meetup on Wednesday December 18th for two exciting talks. This month John Graham Cummings talks Rolling Hashes and Compression Algorithms, we also hear from Andrew Clegg on Scaling up k-nearest neighbours classification

Rolling Hashes and Compression Algorithms

Rolling hashes are fast to compute and can be used to identify 'similar' strings in blocks of data. This talk will look at some uses of rolling hashes for string comparison and compression focussing on the rsync protocol, a spam filter, and a delta compression technique.

John Graham-Cumming

John Graham-Cumming is a computer programmer and author. He studied mathematics and computation at Oxford and stayed for a doctorate in computer security. As a programmer he has worked in Silicon Valley and New York, the UK, Germany and France and cu

Scaling up k-nearest neighbours classification

This talk will introduce k-nearest neighbours, describe its performance characteristics, and discuss some tricks to speed it up on differentkinds of data -- and how to apply them in a production setting.

Andrew Clegg

Andrew is Director of Learner Analytics & Data Science at Pearson, where he applies machine learning, statistical analysis and data visualization techniques to the challenges of 21st century education.

Who's coming?

Attending Members

Sorry, no member has joined this event so far.