Shravan Gaonkar

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Recent years have witnessed the impacts of distributed content sharing (Wikipedia, Blogger), social networks (Facebook, MySpace), sensor networks, and pervasive computing. We believe that significant more impact is latent in the convergence of these ideas on the mobile phone platform. Phones can be envisioned as people-centric sensors capable of aggregating(More)
A growing number of mobile phone applications utilize physical location to express the context of information. Most of these location-based applications assume GPS capabilities. Unfortunately, GPS incurs an unacceptable energy cost that can reduce the phone’s battery life to less than nine hours. Alternate localization technologies, based on WiFi or GSM,(More)
Möbius 2.3 is an extensible dependability, security, and performance modeling environment for large-scale discrete-event systems. It provides multiple model formalisms and solution techniques, facilitating the representation of each part of a system in the formalism that is most appropriate for it, and the application of the solution method or(More)
“Job hopping” by scientists and engineers is an important channel for knowledge diffusion. Little is known, however, about the effectiveness of actions firms take to reduce the outward flow of know-how and talent from their own organizations. Building on theories of reputation-building and strategic deterrence, this study investigates the moderating effects(More)
The costs of data loss and unavailability can be large, so businesses use many data protection techniques such as remote mirroring, snapshots, and backups to guard against failures. Choosing an appropriate combination of techniques is difficult because there are numerous approaches for protecting data and allocating resources. Storage system architects(More)
The Möbius modeling tool provides an infrastructure to support multiple interacting formalisms and solvers, and is extensible in that new formalisms and solvers can be added to the tool in such a way that they can interact with those already implemented without requiring additional changes to the previously implemented ones. We have continued to add(More)
Numerous sensors in modern mobile phones enable a range of people-centric applications. This paper envisions a system called <i>PhonePoint Pen</i> that uses the in-built accelerometer in mobile phones to recognize human writing. By holding the phone like a pen, a user should be able to write short messages or draw simple diagrams in the air. The(More)
Recent years have seen significant interest in using the multihop wireless networking paradigm for building mesh networks, ad hoc networks, and sensor networks. A key challenge in multihop wireless networks is to provision for sufficient network capacity to meet user requirements. Several approaches have been proposed to improve the network capacity in(More)
The ability to note down small pieces of information, quickly and ubiquitously, can be useful. This paper proposes a system called PhonePoint Pen that uses the in-built accelerometer in mobile phones to recognize human writing. By holding the phone like a pen, an user should be able to write short messages or even draw simple diagrams in air. The(More)
Data centers are increasingly being re-designed for workload consolidation in order to reap the benefits of better resource utilization, power savings, and physical space savings. Among the forces driving savings are server and storage virtualization technologies. As more consolidated workloads are concentrated on physical machines -- e.g., the virtual(More)