Speaker: Joss Langford Presentation: Event based classification of

Speaker: Joss Langford Presentation: Event based classification of

Speaker: Joss Langford Presentation: Event based classification of human behaviour Date: Tuesday 16th September 2014 Session: (4) Business Applications of R Time: 1330 1500 hrs 1500 hrs Place: Tower Suite 3 Event based classification of human behaviour: strategic commercial use of open source tools GENEActiv

Activinsights specialises in the science of behavioural measurement with the aim of benefiting peoples overall health GENEActiv wrist-worn accelerometers are the device of choice for studies at many of the worlds leading universities, hospitals and professional sports bodies The original open raw data accelerometer giving uncompressed data in SI units Activinsights Limited 2014 Strategic Commercial - Open

Background: GENEActiv is a general purpose instrument specialisation comes at the software & analysis stage Our customers often produce large data sets up to 10,000 subjects at 0.5Gb each GENEActiv is largely used in research (academic & commercial) Open source tools allow us to: Support a huge range of applications without significant business risk and overhead Collaborate with academics and other commercial partners Provide referenced open releases of tools via CRAN Activinsights Limited 2014 Impact Many studies and most large national studies now use raw data in SI units often GENEActiv & GENEAread Examples: General behaviour

Sports Sleep Visualisation Algorithms American Journal of Epidemiology AssociationSleep Between Questionnaire- and Journal Accelerometer-Assessed Physical Activity: The Role of Sociodemographic Estimates Using Factors JournalSleep of Applied Physiology Microelectromechanical Systems (MEMS)

Auto-calibration of accelerometer data CRAN: for GGIR free-living physical activity assessment using local gravity and temperature: an evaluation on four continents CRAN: GENEAsphere CRAN: GGIR Activinsights Limited 2014 Event-based classification While we have been successful moving the industry to SI units we still have work to do in the area of fixed epoch summaries

Large time-series data sets are not intuitive for human handling Nearly all our customers use fixed epoch summaries but variable length event-based summaries have many advantages Is it a classification or a changepoint problem? There is a natural granularity of everyday life Activinsights Limited 2014 Coelition

Coelition is an open standards organisation that is developing a standard to help classify everyday living The Classification of Everyday Living (COEL) is a hierarchical taxonomy with 32 top level clusters - currently coding over 7,000 behavioural events The hierarchical structure allows information from different sources to be recorded in the same framework Activinsights Limited 2014

Raw data view of a morning Accelerometer Activinsights Limited 2014 Event-based view Accelerometer Diary child woke during night got up sleep

Simple phone app bought coffee drove to station train to London phone screen on location 1 location 2 location 3 Activinsights Limited 2014 Future challenges

Using GENEAclassify as a starting point, build our abilities to intelligently analyse raw data accelerometry Develop better deployment tools e.g. file handling, parallelisation and interfacing Develop new tools for the analysis of event-based data e.g. sequence analysis Activinsights Limited 2014 Acknowledgements & information

Zhou Fang, Biomathematics & Statistics Scotland Sverine Sabia, University College London Vincent van Hees, Newcastle University John Bardon, University of Regina Alex Rowlands, University of South Australia Matt Reed, Coelition [email protected] Activinsights Limited 2014

Recently Viewed Presentations

  • 1st Qtr Council Meeting & Annual Training

    1st Qtr Council Meeting & Annual Training

    What each service provider offers. At council meetings: VWAC 101. Inspections. Military Justice 101. Military Protection Order. Service providers brief and EO brief. Has the RVWLO chaired and conducted a semi-annual Regional VWLO meeting to discuss VWAP-related issues? When was...
  • Managing design-time uncertainty in software models

    Managing design-time uncertainty in software models

    Managing Design-Time Uncertainty . Michalis Famelis, Marsha Chechik. MODELS 2017. Austin TX, USA
  • Lions 2-X1 University

    Lions 2-X1 University

    Keep all members informed of upcoming dates, activities, and projects with detailed status reports. Meet when and where it is convenient for your members. Perform the CQI (CEP) program with your club to find areas in need of improvement.
  • Digital Imaging Guidelines - Ingram Micro

    Digital Imaging Guidelines - Ingram Micro

    Lotus Sametime ® Larry Graves March, 2007 Partner Smart.™ The need for IM/Web Conferencing Competitive pressure Need to be productive, collaborative, responsive, and innovative with customers Improve customer retention Efficiency Improve employee productivity Improve operational efficiency Reduce costs associated with...
  • Health, Fitness and a Healthy Active Lifestyle

    Health, Fitness and a Healthy Active Lifestyle

    Health, Fitness and a Healthy Active Lifestyle. ... netball. • Whole-part-whole - The whole skill is practised first/ then it is broken down to practise each element/ and then is put back together again, eg tennis serve - toss, swing,...
  • DNA Analysis Bellringer  Take out your review sheet

    DNA Analysis Bellringer Take out your review sheet

    RFLP Analysis. A DNA sample is placed in a special tank that has an electric charge going across it. An enzyme is added to the tank the cuts the DNA at specific spots. The different lengths of DNA then move...
  • NJ DWQI Testing Subcommittee

    NJ DWQI Testing Subcommittee

    NJ DWQI Testing Subcommittee. Report on the Development of a Practical Quantitation Level (PQL) for Perfluorooctanoic acid (PFOA) in Drinking Water. PQL Report on Perfluorooctanoic acid (PFOA) Testing Subcommittee Members. Bahman Parsa, Ph.D., Chair.
  • Fundamentals of Human Resource Management 11e Chapter 13

    Fundamentals of Human Resource Management 11e Chapter 13

    Work-related accidents, injuries, and illnesses are costly. ... Requires employers to keep records of illnesses and injuries, and calculate accident ratios. ... - easygoing, reflective, less competitive. Contemporary Safety and Health Issues.