our technologies.
It’s true. Mature and familiar technologies like web-based social networks and mobile phones, (even the very basic kind) are currently serving in Urban Sensing projects with powerful results. But that doesn’t stop us from pushing the limits of what can be discovered. Can we determine a person’s transportation mode from their GPS trace? What type of image processing can filter large time series of images into a workable data set for a person to review? Our broad technology research and development program includes investigations into mechanisms for ensuring privacy according to a user’s preferences, techniques for inferring activity from GPS information, advanced control of mobile phone sensors, interfaces for data investigation, and intelligent systems for recruiting and coordinating participants, among other topics. Take a look at the
future of Urban Sensing.
towards an energy efficient transportation mode classification system —— Continuous GPS data sampling on a GPS enabled mobile phone is expensive (.428 ~ .746 watts/sample) and drains battery quickly, which prevents users from using phones throughout a day without recharging. First, we want to investigate what sampling rate is needed, both to have satisfactory results for... view project
device and server-side authentication for participatory sensing systems —— There has been an increasing trend to delegate more responsibility to the mobile devices we use. Due to the development of faster and cheaper devices and networks we are no longer limited to activities such as point-to-point communication. Today one can readily gather and share real-time information... view project
coordinate and manage participatory data gathering campaigns —— Partisan is a web application framework that targets the current challenges in participatory sensing. Foremost, the efficiency in collaboration and the organization and protection of data is currently infantile. Additionally, participants and organizers require a centralized location of data for pro... view project
collaborative mapping, photography and 3d exploration of the urban environment —— GeoSIM (Geo Social Image Mapping) is an urban sensing system with which a group of individuals with camera-equipped mobile phones participate in collaborative/social mapping of the urban image (i.e., the texture of the urban environment) at some target geolocation. The participating group, which may... view project
manage the automatic capture and analysis of images from mobile phones —— The large number of images through which the user must navigate limits the usability of automatically generated image-based systems. Rewind is a scalable system of everyday mobile phones and supporting web services that we developed to explore how client- and server-side image processing can be used... view project
find the best candidates to perform a data collection campaign —— In traditional sensor systems, one of the fundamental problems concerns the placement of sensors. The analogous problem in participatory sensing is choosing users to perform a particular data collection task. We are creating PICK, a framework that is designed to help with this process. Specifically,... view project
tools and policy that empower sensing participants to control their own data —— Mobile sensing presents significant challenges to privacy and ethics. Never before has sensing been so close to individuals, and so intermixed in their daily lives. Participatory privacy regulation (PPR) is a developing approach to system design that incorporates both group and individual decision-m... view project
selective sharing preserves sensitive data while enable appropriate portions to be shared —— Previous work often has used countermeasure techniques such as spatial rounding or noise to preserve location and route privacy. These techniques require a high degree of perturbation to preserve the privacy of sensitive places and routes. This high level of perturbation is problematic for many loca... view project
“slogging” and sharing sensor network data —— Sensorbase is a centralized common data storage and management system that provides a uniform and consistent method for publishing and sharing data. It allows users to define a subset of EML data types, project groups, and permission levels. It also serves as a search engine that provides APIs a way... view project
spotlight aims to raise awareness of personal resource consumption —— The ongoing natural resource crisis, in particular, motivates us to develop innovative ways of conserving the resources. We believe most people have the will to conserve nature's gifts but that they need timely and personalized information to help them do the right thing. Positive feedback that prov... view project
metropolitan scale wireless mesh network for research in participatory urban sensing —— Met-Wi is a metropolitan scale Wi-Fi mesh network deployment that expands UCLA’s urban-sensing network into the community in collaboration with California State Parks around the new Los Angeles State Historic Park (LA SHP), a 32-acre site directly adjacent to LA downtown. The network connects two ... view project
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