Mark Crovella
NeTS: Small: Analytic Tools for Evolving Path-Based Networks
The Internet is collectively composed of tens of thousands of individual networks, operated independently. Data flows from one network to another over paths that reflect agreements between network providers to exchange traffic. The ability of the Internet to connect computers around the world depends on the establishment and maintenance of these paths using a complex […]
III: Small: Structural Matrix Completion for Data Mining Applications
A common problem arising in science and engineering is that a dataset may only be partially measured. Often the complete dataset is naturally expressed as a matrix – for example, traffic flows in a city, gene expression across a set of treatments, or ratings of movies for users. Recently, a new solution strategy has emerged […]
NeTS: Small: Understanding Communication Strategies for Ad hoc Networks
Ad-hoc networks hold great promise, but there is a vast array of competing proposals for organizing such networks. Unfortunately it is unclear, in general, how to choose among the various proposed designs in any given deployment. In response, this project is asking a fundamental question: how should a collection of nodes decide what basic architecture […]
TC: Large: Securing the Open Softphone
Mobile phones are in the midst of a dramatic transformation; they are becoming highly powerful sensor-rich software-controlled computing and communication devices. These “softphones” are increasingly entrusted with maintaining users’ electronic identity, calendars, social networks, and even bank accounts. However, the vast increases in the flexibility of softphones comes with equally large security issues and opportunities, […]
NeTS: Small: New Directions in Network Dimensionality Reduction for Routing and Beyond
Many important problems in computer networking depend on the observed properties of network graphs — graphs obtained by measuring real network. These include networks of routers, autonomous systems, wireless nodes, and social relationships. Unfortunately, despite the explosion of detailed data now available, such graphs are still poorly understood, in part because of the high dimensionality […]