Massachusetts Institute of Technology

Fang Zhao

Muriel Medard

Xiaomeng Shi

Minji Kim

Daniel Lucani

Marie-Jose Montpetit

Moshe E Ben-Akiva

Francisco C Pereira

Marie-Joseph Montpetit

Pericles C Zegras

Systems and methods for collecting travel data include a mobile application capable of being executed on a mobile computing device and configured to monitor and log travel data related to travel of the mobile computing device, and to communicate the travel data over a network. A networked data processing device may be coupled to receive the travel-related data from the network and analyze the travel-related data to identify a mode of travel of the mobile computing device. A graphical user interface allows a user of the mobile computing device to verify accuracy of the identified means of travel.

Travel survey systems and methods

A method, apparatus and computer program product for utilizing network coding for multi-resolution multicast is presented. A network source partitions source content into a base layer and one or more refinement layers. The network source receives a respective one or more push-back messages from one or more network destination receivers, the push-back messages identifying the one or more refinement layers suited for each one of the one or more network destination receivers. The network source computes a network code involving the base layer and the one or more refinement layers for at least one of the one or more network destination receivers, and transmits the network code to the one or more network destination receivers in accordance with the push-back messages.

Network coding for multi-resolution multicast

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Cambridge, MA, United States of America

Fang Zhao