Ambulation: A Tool for Monitoring Mobility Patterns over Time Using Mobile Phones. - Jason Ryder; Brent Longstaff; Sasank Reddy; Deborah Estrin (CSE (4), 2009)

Improving activity classification for health applications on mobile devices using active and semi-supervised learning. - Brent Longstaff; Sasank Reddy; Deborah Estrin (PervasiveHealth, 2010)

FollowMe: enhancing mobile applications with open infrastructure sensing. - Ben Greenstein; Brent Longstaff (HotMobile, 2011)

ohmage: An open mobile system for activity and experience sampling. - Nithya Ramanathan; Faisal Alquaddoomi; Hossein Falaki; Dony George; Cheng-Kang Hsieh; John Jenkins; Cameron Ketcham; Brent Longstaff; Jeroen Ooms; Joshua Selsky; Hongsuda Tangmunarunkit; Deborah Estrin (PervasiveHealth, 2012)

Lifestreams: a modular sense-making toolset for identifying important patterns from everyday life. - Cheng-Kang Hsieh; Hongsuda Tangmunarunkit; Faisal Alquaddoomi; John Jenkins; Jinha Kang; Cameron Ketcham; Brent Longstaff; Joshua Selsky; Betta Dawson; Dallas Swendeman; Deborah Estrin; Nithya Ramanathan (SenSys, 2013)

ACM HotMobile 2013 poster: lifestreams dashboard: an interactive visualization platform for mHealth data exploration. - Cheng-Kang Hsieh; Hongsuda Tangmunarunkit; Faisal Alquaddoomi; John Jenkins; Jinha Kang; Cameron Ketcham; Brent Longstaff; Joshua Selsky; Dallas Swendeman; Deborah Estrin; Nithya Ramanathan (ACM SIGMOBILE Mob. Comput. Commun. Rev., 2013)

Ohmage: A General and Extensible End-to-End Participatory Sensing Platform. - Hongsuda Tangmunarunkit; Cheng-Kang Hsieh; Brent Longstaff; S. Nolen; John Jenkins; Cameron Ketcham; Joshua Selsky; Faisal Alquaddoomi; Dony George; Jinha Kang; Z. Khalapyan; Jeroen Ooms; et al. (ACM Trans. Intell. Syst. Technol., 2015)

Learning Individuals' Patterns and Contextual Events with Mobile Data Streams. - Brent Longstaff (2015)