80,816 research outputs found
A Literature Survey of Cooperative Caching in Content Distribution Networks
Content distribution networks (CDNs) which serve to deliver web objects
(e.g., documents, applications, music and video, etc.) have seen tremendous
growth since its emergence. To minimize the retrieving delay experienced by a
user with a request for a web object, caching strategies are often applied -
contents are replicated at edges of the network which is closer to the user
such that the network distance between the user and the object is reduced. In
this literature survey, evolution of caching is studied. A recent research
paper [15] in the field of large-scale caching for CDN was chosen to be the
anchor paper which serves as a guide to the topic. Research studies after and
relevant to the anchor paper are also analyzed to better evaluate the
statements and results of the anchor paper and more importantly, to obtain an
unbiased view of the large scale collaborate caching systems as a whole.Comment: 5 pages, 5 figure
Graphical rule of transforming continuous-variable graph states by local homodyne detection
Graphical rule, describing that any single-mode homodyne detection turns a
given continuous-variable (CV) graph state into a new one, is presented.
Employing two simple graphical rules: local complement operation and vertex
deletion (single quadrature-amplitude measurement), the graphical
rule for any single-mode quadrature component measurement can be obtained. The
shape of CV weighted graph state may be designed and constructed easily from a
given larger graph state by applying this graphical rule.Comment: 4 pages, 3 figure
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