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Published byDarren Hardy Modified over 8 years ago
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NMT’s Computer Science and Engineering Education & Research Programs Dr. Lorie M. Liebrock Chair, Computer Science and Engineering
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Associate Professor Ph.D., Computer Science, University of Massachusetts Subhasish Mazumdar Specialities Mobile data management Document databases Integrating heterogeneous data sources
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Subhasish Mazumdar Sample Research: Mobile Data Management Mobile devices have increasingly powerful computational ability, but limited computing resources, e.g., battery, storage; possibility of disconnections in network connectivity; Likelihood of loss and theft. Can mobile users be empowered just like users on desktops? No! What if a mobile client locks server data and disconnects (voluntarily/involuntarily)? Server resources may become unavailable to all other clients forever!
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Subhasish Mazumdar New solutions are needed to address integrity & security. Our approach assumes a three-tier architecture: (i)server, (ii)stationary support stations, and (iii) the mobile hosts; rewrites global constraints into sufficient local constraints; allows local execution when disconnected while enforcing global integrity constraints; thwarts attempts to reconstruct a database from a stolen portable device; or even from a single query; develops the idea of a lease, i.e., a contract along with the cached data; illuminates the interaction between lease durations and user authority levels; shows that changing range constraints on data in mobile hosts is useful for security.
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