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The growth of the World Wide Web has been accompanied by a proliferation of rich, time-based media such as audio and video documents. However, the ability to categorize and index these documents has not improved comparably, ...

In this thesis, terahertz (THz) laser frequency combs are improved and THz dual-comb spectroscopy method is demonstrated. To achieve better performance of THz quantum cascade laser (QCL) frequency combs, several broadband ...

Homomorphic encryption allows one to outsource expensive computation to an untrusted party while keeping data in an encrypted form. While there has been a growing research focus in fully homomorphic encryption schemes, ...