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In a world becoming ever more reliant on the power of information, bringing data connectivity into developing regions is becoming an important way to lift these regions out of poverty by educating and informing the population. Although many of these regions are not likely to receive the infrastructure to support fully wired (or even wireless) networks, existing cellular and delay tolerant technologies allow limited connectivity. In this paper the authors show that usability of highly disconnected networks can be increased through collaborative caching and data prefetching techniques.
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